AnyDATA DTS-800CDK CDMA Development kit DTS-800 User Manual Service manual

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Document Description	Service manual
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Date Submitted	2002-01-21 00:00:00
Date Available	2002-01-21 00:00:00
Creation Date	2002-01-22 09:42:22
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Document Title	Service manual

SERVICE MANUAL
CDMA Development Kit
DTS-800 CDK
AnyDATA.NET Inc.
Hanvit Bank B/D 7F
Byulyang-dong Kwachon
KOREA
Tel) 82-2-504-3360
Fax) 82-2-504-3362
Introduction
The CDMA development kit (CDK -800) is designed for the test and simulation of the CDMA wireless data
communications.
User can connect the development kit to your PC or Notebook and easily test the wireless
communications. User can use this to develop your applications software even before user’s own hardware is
ready.
It also can be used as a debugging during user’s hardware test.
Disclaimer and Limitation of Liability
AnyDATA.NET Inc. assumes no responsibility for any damage or loss resulting from the misuse of its products.
AnyDATA.NET Inc. assumes no responsibility for any loss or claims by third parties, which may arise through the
use of its products. AnyDATA.NET Inc. assumes no responsibility for any damage or loss caused by the deletion
or loss of data as a result of malfunctions or repairs.
The information disclosed herein is the exclusive property of AnyDATA.NET Inc. and no part of this publication
may be reproduced or transmitted in any form or by any means including electronic storage, reproduction,
adaptation , translation , execution or transmission without the prior written consent of AnyDATA.NET Inc.
The information contained in this document is subject to change without notice.
FCC RF Exposure Information
Warning!
Read this information before using this device.
In August 1996 the Federal Communications
Commission (FCC) of the United States with its action in Report and Order FCC 96-326
adopted an updated safety standard for human exposure to radio
frequency electromagnetic
energy emitted by FCC regulated transmitters. Those guidelines are consistent with the safety
standard previously set by both U.S. and international standards bodies. The design of this
device complies with the FCC guidelines and these international standards.
CAUTION
!
Operating Requirements
The user can not make any changes or modifications not expressly approved by the party responsible for
compliance, otherwise it could void the user's authority to operate the equipment.
To satisfy FCC RF exposure compliance requirements for a mobile transmitting device, this device and
its antenna should generally maintain a separation distance of 20cm or more from a person’s body.
Special accessories
In order to ensure this device in compliance with FCC regulation, the special accessories are provided with this
device and must be used with the device only. The user is not allowed to use any other accessories than the special
accessories given with this device
Table of Contents
General Introduction
.......................................................................................................................................... 2
CHAPTER 1. System Introduction
1. System Introduction .........................................................................................................
2. Features and Advantages of CDMA Module ..................................................................
3. Structure and Functions of CDMA Module .....................................................................
4. Specification .....................................................................................................................
CHAPTER 2. NAM Input Method(Inputting of telephone numbers included)
1. NAM Programming Method and Telephone Number Input Method .............................. 11
CHAPTER 3. Circuit Description
1. Overview.......................................................................................................................... 14
2. RF Transmit/Receive Part .............................................................................................. 14
3. Digital/Voice Processing Part ...................................................................…….. 17
CHAPTER 4. FCC Notice
Appendix
........................................................................................................................................ 22
1. Assembly and Disassembly Diagram
2. Block & Circuit Diagram
3. Part List
4. Component Layout
General Introduction
The DTS-800 CDK functions digital cellular module worked in CDMA (Code Division Multiple
Access) mode. CDMA type digital mode applies DSSS (Direct Sequence Spread Spectrum) mode
which is used in military.
This feature enables the phone to keep communication from being crossed and use one frequency
channel by multiple users in the same specific area, resulting that it increases the capacity 10 times
more compared with that in the analog mode currently used.
Soft/Softer Handoff, Hard Handoff, and Dynamic RF power Control technologies are combined into
this phone to reduce the call being interrupted in a middle of talking over phone.
CDMA digital cellular network consists of MSC (Mobile Switching Office), BSC (Base Station
Controller), BTS (Base station Transmission System), and MS (Mobile Station). Communication
between MS and BTS is designed to meet the specification of IS-95A (Common Air Interface). MS
meets the specifications of the below :
- IS-95A ( Common Air Interface ) : Protocol between MS and BTS
- IS-96A ( Vocoder ) : Voice signal coding
- IS-98 : Basic MS functions
- IS-126 : Voice loopback
- IS-99 : Short Message Service, Async Data Service, and G3 Fax Service
DTS-800
CDK
is
digital
mode
is
designed
to
be
operated
in
full
duplex.
DTS-800
CHAPTER 1. System Introduction
1. System Introduction
1.1 CDMA Abstract
The cellular system has a channel hand-off function that is used for collecting the information on the locations and movements of
radio mobile telephones from the cell site by automatically controlling several cell site through the setup of data transmission
routes and thus, enabling one switching system to carry out the automatic remote adjustment. This is to maintain continuously the
call state through the automatic location confirmation and automatic radio channel conversion when the busy subscriber moves
from the service area of one cell site to that of another by using automatic location confirmation and automatic radio channel
conversion functions. The call state can be maintained continuously by the information exchange between switching systems when
the busy subscriber moves from one cellular system area to the other cellular system area.
In the cellular system, the cell site is a small-sized low output type and utilizes a frequency allocation system that considers
mutual interference, in an effort to enable the re-use of corresponding frequency from a cell site separated more than a certain
distance. The analog cellular systems are classified further into an AMPS system, E-AMPS System, NMT system, ETACS
system, and JTACS system depending on technologies used.
Unlike the time division multiple access (TDMA) or frequency division multiple access (FDMA) used in the band limited
environment, the Code Division Multiple Access(CDMA) system which is one of digital cellular systems is a multi-access
technology under the interference limited environment. It can process more number of subscribers compared to other systems
(TDMA system has the processing capacity three times greater than the existing FDMA system whereas CDMA system, about
12~15 times of that of the existing system).
CDMA system can be explained as follows: TDMA or SDMA can be used to enable each person to talk alternately or provide a
separate room for each person when two persons desire to talk with each other at the same time, whereas FDMA can be used to
enable one person to talk in soprano, whereas the other in bass (one of the two talkers can carry out synchronization for hearing
in case there is a bandpass filter function in the area of the hearer).
Another method available is to make two persons to sing in different languages at the same time, space, and frequency when
wishing to let the audience hear the singing without being confused. This is the characteristics of CDMA.
On the other hand, when employing the CDMA technology, each signal has a different pseudo-random binary sequence used to
spread the spectrum of carrier. A great number of CDMA signals share the same frequency spectrum. In the perspective of
frequency area or time area, several CDMA signals are overlapped. Among these types of signals, only desired signal energy is
selected and received through the use of pre-determined binary sequence; desired signals can be separated and then, received
with the correlator used for recovering the spectrum into its original state. At this time, the spectrums of other signals that have
different codes are not recovered into its original state and instead, processed as noise and appears as the self-interference of the
system.
2. Features and Advantages of CDMA Module
2.1 Various Types of Diversities
In the CDMA broadband modulation(1.25MHz band), three types of diversities (time, frequency, and space) are used to reduce
serious fading problems generated from radio channels in order to obtain high-quality calls.
Time diversity can be obtained through the use of code interleaving and error correction code whereas frequency diversity can
be obtained by spreading signal energy to more wider frequency band. The fading related to normal frequency can affect the
normal 200~300kHz among signal bands and accordingly, serious affect can be avoided. Moreover, space diversity (also called
path diversity) can be realized with the following three types of methods.
First, it can be obtained by the duplication of cell site receive antenna. Second, it can be obtained through the use of multi-signal
processing device that receives a transmit signal having each different transmission delay time and then, combines them. Third, it
can be obtained through the multiple cell site connection (Soft Handoff) that connects the mobile station and more than two cell
sites at the same time.
2.2 Power Control
The CDMA system utilizes the forward (from a base station to mobile stations) and backward (from the mobile station to the
base station) power control in order to increase the call processing capacity and obtain high-quality calls. In case the originating
signals of mobile stations are received by the cell site in the minimum call quality level (signal to interference) through the use of
transmit power control on all the mobile stations, the system capacity can be maximized.
If the signal of mobile station is received too strong, the performance of that mobile station is improved. However, because of
this, the interference on other mobile stations using the same channel is increased and accordingly, the call quality of other
subscribers is reduced unless the maximum accommodation capacity is reduced.
In the CDMA system, forward power control, backward open loop power control, and closed loop power control methods are
used. The forward power control is carried out in the cell site to reduce the transmit power on mobile stations less affected by
the multi-path fading and shadow phenomenon and the interference of other cell sites when the mobile station is not engaged in
the call or is relatively nearer to the corresponding cell site. This is also used to provide additional power to mobile stations
having high call error rates, located in bad reception areas or far away from the cell site.
The backward open loop power control is carried out in a corresponding mobile station; the mobile station measures power
received from the cell site and then, reversely increases/decreases transmit power in order to compensate channel changes
caused by the forward link path loss and terrain characteristics in relation to the mobile station in the cell site. By doing so, all
the mobile office transmit signals in the cells are received by the cell site in the same strength.
Moreover, the backward closed loop power control used by the mobile station to control power with the commands issued out
by the cell site. The cell site receives the signal of each corresponding mobile station and compares this with the pre-set
threshold value and then, issues out power increase/decrease commands to the corresponding mobile station every 1.25 msec
(800 times per second).
By doing so, the gain tolerance and the different radio propagation loss on the forward/backward link are complemented.
2.3 Voice Encoder and Variable Data Speed
The bi-directional voice service having variable data speed provides voice communication which employs voice encoder
algorithm having power variable data rate between the mobile telephone cell site and mobile station. On the other hand, the
transmit voice encoder performs voice sampling and then, creates encoded voice packets to be sent out to the receive voice
encoder, whereas the receive voice encoder demodulates the received voice packets into voice samples.
One of the two voice encoders described in the above is selected for use depending on inputted automatic conditions and
message/data; both of them utilize four-stage frames of 9600, 4800, 2400, and 1200 bits per second. In addition, this type of
variable voice encoder utilizes adaptive threshold values when selecting required data rate. It is adjusted in accordance with the
size of background noise and the data rate is increased to high rate only when the voice of caller is inputted.
Therefore, background noise is suppressed and high-quality voice transmission is possible under the environment experiencing
serious noise. In addition, in case the caller does not talk, data transmission rate is reduced so that the transmission is carried out
in low energy. This will reduce the interference on other CDMA signals and as a result, improve system performance (capacity,
increased by about two times).
2.4 Protecting Call Confidentiality
CDMA signals have the function of effectively protecting call confidentiality by spreading and interleaving call information in
broad bandwidth. This makes the unauthorized use of crosstalk, search receiver, and radio very hard substantially. Also included
is the encryption function on various authentication and calls specified in IS-95 for the double protection of call confidentiality.
2.5 Soft Handoff
During the soft hand, the cell site already in the busy state and the cell site to be engaged in the call later participate in the call
conversion. The call conversion is carried out through the original call connection cell site, both cell sites, and then, new cell
site. This method can minimize call disconnection and prevent the user from detecting the hand-off.
2.6 Frequency Re-Use and Sector Segmentation
Unlike the existing analog cellular system, the CDMA system can reuse the same frequency at the adjacent cell and accordingly,
there is no need to prepare a separate frequency plan. Total interference generated on mobile station signals received from the
cell site is the sum of interference generated from other mobile stations in the same cell site and interference generated from the
mobile station of adjacent cell site. That is, each mobile station signal generates interference in relation to the signals of all the
other mobile signals.
Total interference from all the adjacent cell sites is the ratio of interference from all the cell sites versus total interference from
other mobile stations in the same cell site (about 65%). In the case of directional cell site, one cell normally uses a 120°sector
antenna in order to divide the sector into three. In this case, each antenna is used only for 1/3 of mobile stations in the cell site
and accordingly, interference is reduced by 1/3 on the average and the capacity that can be supported by the entire system is
increased by three times.
2.7 Soft Capacity
The subscriber capacity of CDMA system is flexible depending on the relation between the number of users and service classes.
For example, the system operator can increase the number of channels available for use during the busy hour despite the drop in
call quality. This type of function requires 40% of normal call channels in the standby mode during the handoff support, in an
effort to avoid call disconnection resulting from the lack of channels.
In addition, in the CDMA system, services and service charges are classified further into different classes so that more transmit
power can be allocated to high class service users for easier call set-up; they can also be given higher priority of using hand-off
function than the general users.
3. Structure and Functions of CDMA Module
The mobile station of CDMA system is made up of a radio frequency part and logic/control (digital) part. The mobile station is
fully compatible with the existing analog FM system. The mobile station antenna is connected with the transmitter/receiver via a
duplexer filter so that it can carry out the transmit/receive function at the same time.
The transmit frequency is the 25MHz band of 824~849MHz, whereas the receive frequency is the 25MHz band of 869~894MHz.
The transmit/receive frequency is separated by 45MHz. The RF signal from the antenna is converted into intermediate
frequency(IF) band by the frequency synthesizer and frequency down converter and then, passes the bandpass SAW filter having
the 1.25MHz band. IF output signals that have been filtered from spurious signal are converted into digital signals via an analogto-digital converters(ADC) and then, sent out respectively to 5 correlators in each CDMA de-modulator. Of these, one is called a
searcher whereas the remaining 4 are called data receiver(finger). Digitalized IF signals include a great number of call signals
that have been sent out by the adjacent cells. These signals are detected with pseudo-noise sequence (PN Sequence). Signal to
interference ratio (C/I) on signals that match the desired PN sequence are increased through this type of correlation detection
process. Then, other signals obtain processing gain by not increasing the ratio. The carrier wave of pilot channel from the cell
site most adjacently located is demodulated in order to obtain the sequence of encoded data symbols. During the operation with
one cell site, the searcher searches out multi-paths in accordance with terrain and building reflections. On three data receivers,
the most powerful four paths are allocated for the parallel tracing and receiving. Fading resistance can be improved a great deal
by obtaining the diversity combined output for de-modulation. Moreover, the searcher can be used to determine the most
powerful path from the cell sites even during the soft handoff during the two cell sites. Moreover, four data receivers are
allocated in order to carry out the de-modulation of these paths. Data output that has been demodulated change the data string in
the combined data row as in the case of original signals(deinterleaving), and then, are de-modulated by the forward error
correction decoder which uses the Viterbi algorithm.
On the other hand, mobile station user information sent out from the mobile station to the cell site pass through the digital voice
encoder via a mike. Then, they are encoded and forward errors are corrected through the use of convolution encoder. Then, the
order of code rows is changed in accordance with a certain regulation in order to remove any errors in the interleaver. Symbols
made through the above process are spread after being loaded onto PN carrier waves. At this time, PN sequence is selected by
each address designated in each call.
Signals that have been code spread as above are digital modulated (QPSK) and then, power controlled at the automatic gain
control amplifier (AGC Amp). Then, they are converted into RF band by the frequency synthesizer synchronizing these signals to
proper output frequencies.
Transmit signals obtained pass through the duplexer filter and then, are sent out to the cell site via the antenna.
4. Specification
4.1 General Specification
4.1.1 Transmit/Receive Frequency Interval : 45 MHz
4.1.2 Number of Channels (Channel Bandwidth)
CDMA : 20 CH (BW: 1.23MHz)
41.3 Operating Voltage : DC 6V
4.1.4 Operating Temperature : -30°° ~ +60°°
4.1.5 Frequency Stability : ±300 Hz
4.1.6 Antenna : Whip antenna, 50 Ω
4.1.7 Size and Weight
1) Size : 102mm x 80mm x 36mm (L x W x D)
2) Weight : About 180g
4.1.8 Channel Spacing : 1.25MHz
4.2 Receive Specification
4.2.1 Frequency Range
Digital : 869.04 MHz ~ 893.97 MHz
4.2.2 Local Oscillating Frequency Range : 966.88MHz±12.5MHz
4.2.3 Intermediate Frequency : 85.38MHz
4.2.4 Sensitivity : -104dBm Under
4.2.5 Selectivity
CDMA : 3dB C/N Degration (With Fch±1.25 kHz : -30dBm)
4.2.6 Spurious Wave Suppression : Maximum of -80dB
4.2.7 CDMA Input Signal Range
• Dynamic area of more than -104~ -25dBm : 79dB at the 1.23MHz band.
4.3 Transmit Specification
4.3.1 Frequency Range
824.04 MHz ~ 848.97 MHz
4.3.2 Local Oscillating Frequency Range : 966.88 MHz±12.5 MHz
4.3.3 Intermediate Frequency : 130.38 MHz
4.3.4 Output Power : 0.32W
4.3.5 Interference Rejection
1) Single Tone : -30dBm at 900 kHz
2) Two Tone : -43dBm at 900 kHz & 1700kHz
4.3.7 CDMA TX Frequency Deviation : +300Hz or less
4.3.8 CDMA TX Conducted Spurious Emissions
• 900kHz : - 42 dBc/30kHz below
• 1.98MHz : - 54 dBc/30kHz below
4.3.9 CDMA Minimum TX Power Control : - 50dBm below
4.4 MS (Mobile Station) Transmitter Frequency
FA NO.
CH.NO.
CENTER FREQUENCY
FA NO.
CH.NO.
CENTER FREQUENCY
1011
824.640 MHz
11
404
837.120 MHz
29
825.870 MHz
12
445
838.350 MHz
70
827.100 MHz
13
486
839.580 MHz
111
828.330 MHz
14
527
840.810 MHz
152
829.560 MHz
15
568
842.04 MHz
193
830.790 MHz
16
609
843.270 MHz
234
832.020 MHz
17
650
844.500 MHz
275
833.250 MHz
18
697
845.910 MHz
316
834.480 MHz
19
738
847.140 MHz
10
363
835.890 MHz
20
779
848.370 MHz
4.5 MS (Mobile Station) Receiver Frequency
FA NO.
CH.NO.
CENTER FREQUENCY
FA NO.
CH.NO.
CENTER FREQUENCY
1011
869.640 MHz
11
404
882.120 MHz
29
870.870 MHz
12
445
883.350 MHz
70
872.100 MHz
13
486
884.580 MHz
111
873.330 MHz
14
527
885.810 MHz
152
874.560 MHz
15
568
887.04 MHz
193
875.790 MHz
16
609
888.270 MHz
234
877.020 MHz
17
650
889.500 MHz
275
878.250 MHz
18
697
890.910 MHz
316
879.480 MHz
19
738
892.140 MHz
10
363
880.890 MHz
20
779
893.370 MHz
CHAPTER 2. NAM Input Method
1.INSTALLATION METHOD
1) Connect the MODEM to 60pin connector of Level Translator.
2) Supply the voltage of 5~7V to small or large jack of Level Translator.
3) Switch the power on.
4) Connect the UART1 to PC COM1 port with the RS-232C cable.
5) Install the operating program.
2. OPERATION METHOD
1) Run PSTDM program at Windows95 or Windows98
2) Set Buad rate to the modem’s.
3) Click [DM mode]
4) If OK is displayed in the message box, modem is now ready for
ommunication with PC.
5) Click MENU BAR icon.
SCRIPTINPUT WINDOW
6) As shown in the picture above, service file input plane will be displayed
(See if clock is running.
If it isn’t, communication with PC is not
activated.
Repeat step 1 through 5, or reset the power of modem and repeat step 1
through 5)
7) Type NAM Programming script like the example shown below,

Mode offline-d
[ENTER]
nv_write name_nam {0," AnyDATA telecom "}
[ENTER]
nv_write name_nam {1," AnyDATA telecom "}
[ENTER]
Mode reset
[ENTER]
CHAPTER 3. Circuit Description
1. Overview
IRT3000 receives modulated digital signals from the MSM of the digital circuit and then, changes them into analog
signals by the digital/analog converter (DAC, D/A Converter) in order to create baseband signals. Created baseband
signals are changed into IF signals by IFT3000 and then, fed into the Mixer after going through AGC. IF signals that
have been fed are mixed with the signals of VCO and changed into the RF signals and then, they are amplified at the
Power AMP. Finally, they are sent out to the cell site via the antenna after going through the isolator and duplexer.
2. RF Transmit / Receive Part
2.1 CDMA Transmit End
8 bit I and Q transmit signals are inputted into 2 DACs (DIGITAL-TO-ANALOG CONVERTER) from the output
terminal TX_IQDATA0 ~ TX_IQDATA7 of MSM through the input terminals TXD0~TXD7 of BBA. Transmit
signal input speed is two times of TXCLK+, TXCLK- which are two transmit/receive reference frequency.
Among transmit signals being inputted, signals are inputted into I signal DAC when the transmit clock is in the rise
edge, whereas signals are inputted into Q Signal DAC during the drop edge. I and Q transmit signals are
compensated and outputted at MSM in order to compensate the 1/2 clock time difference generated between
reference clocks. In the signals coming out from the output terminal of DAC, there are spurious frequency
ingredients resulting from DAC output transition edge and parasite ingredients, transmit clock frequencies and
harmonics which are unwanted signals. Accordingly, spurious ingredients are removed by passing the signals
through LPF of passband 6.30KHz. Unlike the receive end, the transmit end LPF requires no OFFSET adjustment.
Analog baseband signals that have passed the CDMA LPF are mixed with I and Q signals of frequency 130.38 MHz
(260.76 MHz created in the BBA internal VCO are divided by half into frequency 130.38MHz having the phase
difference of 90 degrees) in two mixers. The mixed signals are added again and converted into IF frequency 130.38
MHz ±630 KHz (CDMA Spread Power Density Modulated Signals) and then, outputted.
2.2. Tx IF/Baseband Processors, IFT3000 (U105)
The IFT3000 includes digital-to-analog converters(DAC) for converting digital baseband to analog baseband, lowpass filters, a mixer for up-converting to IF and an 85 dB dynamic range Tx AGC amplifier. The IFT3000 includes
a fully programmable phase-locked loop(PLL) for generating Tx LO and IF frequencies. The IFT3000 also has an 8bit general purpose ADC with three selectable inputs for monitoring battery level, RF signal strength and phone
temperature.
2.3. Upconverter (U104)
Upconverters made up of a mixer part and Driver AMP part. The mixer part is used to receive
double-balanced OUT+ and OUT- of transmit AGC from baseband and mix the output of VCO (U171) with UHF
output signal, whereas the Amp part is used to buffer the output of this mixer. U105 has the operation range of
RF500MHz~1500MHz and has the conversion gain of 0 dB. In addition, the suppression of spurious signals which
are unwanted noise is about 30 dBc when being compared to RF output. The IF input signal range of the mixer is
DC~200MHz. The isolation on RF output terminal and LO signal input terminal at the IF input terminal is 30dB.
The range of LO signal that can be inputted is 300~1700MHz and power level is -6~0 dBm.
2.4. Transmit Bandpass Filter (F102, F103)
Transmit signals that have been converted from IF signals into RF signals after passing through the upconverter
U105 are inputted into the Power Amp U102 after passing once again through RF BPF F102 in order to filter out
noise signals amplified during the amplification of RF signals after going through upconverter(U105). This is carried
out in order to create power level inputted to the Power AMP via RF BPF F102. IL of two RF BPFs is 4dB as a
maximum, whereas the ripple in the passing band is 2dB(maximum). The degree of the suppression of transmit
signals on receive band is at least 20dB or greater. The maximum power that can be inputted is about 25dBm.
2.5. Power Amplifier (U102)
The power amplifier U102 that can be used in the CDMA and FM mode has linear amplification capability,
whereas in the FM mode, it has a high efficiency. For higher efficiency, it is made up of one MMIC (Monolithic
Microwave Integrated Circuit) for which RF input terminal and internal interface circuit are integrated onto one IC
after going through the AlGaAs/GaAs HBT (heterojunction bipolar transistor) process. The module of power
amplifier is made up of an output end interface circuit including this MMIC. The maximum power that can be
inputted through the input terminal is +17dBm and conversion gain is about 28dB. RF transmit signals that have
been amplified through the power amplifier are sent to the duplexer and then, sent out to the cell site through the
antenna in order to prevent any damages on circuits, that may be generated by output signals reflected from the
duplexer and re-inputted to the power amplifier output end.
2.6. Description of Frequency Synthesizer Circuit
2.6.1 Voltage Control Temperature Compensation Crystal Oscillator(U174, VCTCXO)
The temperature range that can be compensated by U174 which is the reference frequency generator of mobile
terminal is -30 ~ +80 degrees. U174 receives frequency tuning signals called TRK_LO_ADJ from MSM as
0.5V~2.5V DC via R and C filters in order to generate the reference frequency of 19.68MHz and input it into the
frequency synthesizer of UHF band. Frequency stability depending on temperature is ± 2.0 ppm.
2.6.2 UHF Band Frequency Synthesizer (U172)
Reference frequency that can be inputted to U172 is 3MHz~40MHz. It is the dual mode
frequency synthesizer (PLL) that can synthesize the frequencies of UHF band 50MHz~1200MHz and IF band
20MHz~300MHz. U172 that receives the reference frequency of 19.68MHz from U174 creates 30kHz comparison
frequency with the use of internal program and then, changes the frequency of 900MHz band inputted from X200
which is the voltage adjustment crystal oscillator into the comparison frequency of 30kHz at the prescaler in U172.
Then, two signal differences are calculated from the internal phase comparator. The calculated difference is
inputted to DC for adjusting the frequency of U174 through U172 No.2 PIN and external loop filter in order to
generate UHF signals. In addition, outputs of other PIN17 are inputted into BBA after going through the VRACTOR
diode and tank circuit so that the outputs of BBA internal receive end VCO are adjusted to 170.76MHz.
2.6.3 Voltage Control Crystal Oscillator (U171)
U171 that generates the LO frequency (900MHz) of mobile terminal receives the output voltage of PLL U172 and
then, generates the frequency of 954MHz at 0.7V and the frequency of 980MHz at 2.7V. The sensitivity on control
voltage is 23MHz/v and the output level is 1dBm(maximum). Since LO frequency signal is very important for the
sensitivity of mobile terminal, they must have good spurious characteristics. U174 is -70dBc(maximum).
3. Digital/Voice Processing Part
3.1 Overview
The digital/voice processing part processes the user's commands and processes all the digital and voice signal
processing in order to operate in the phone. The digital/voice processing part is made up of a receptacle part, voice
processing part, mobile station modem part, memory part, and power supply part.
3.2 Configuration
3.2.2 Voice Processing Part
The voice processing part is made up of an audio codec into digital voice signals and digital voice signals into
analog voice signals, amplifying part for amplifying the voice signals and sending them to the ear piece, amplifying
part that amplifies ringer signals coming out from MSM3000, and amplifying part that amplifies signals coming out
from MIC and transferring them to the audio processor.
3.2.3 MSM (Mobile Station Modem) Part
MSM is the core elements of CDMA terminal and carries out the functions of CPU, encoder, interleaver,
deinterleaver, Viterbi decoder, Mod/Demod, and vocoder.
3.2.4 Memory Part
The memory part is made up of a flash memory, SRAM for storing data, and EEPROM.
3.2.5 Power Supply Part
The power supply part is made up of circuits for generating various types of power, used for the digital/voice
processing part.
+4.2V from external DC (+6V) is fed into five regulators(U605,U603,U602,U604,U606).
The five regulators produces +3.0V for the IFR3000(U204) and for Tx Parts.
3.3 Circuit Description
Receptacle
Ringer
Earpiece
AUDIO
Processor
FLASH
Memory
SRAM
EEPROM
Mic
Power Supply
[Figure 3-1] Block Diagram of Digital/Voice Processing Part
3.3.2 Audio Processing Part
MIC signals are amplified through the audio codec which is U401 (TWL1103), and converted into digital signals.
Then, they are inputted into MSM3000. In addition, digital audio signals outputted from MSM3000 are converted
into analog signals after going through the audio codec to be amplified. and then transferred to the ear piece.
3.3.3 MSM Part
MSM3000, which is U301, is the core element of CDMA system terminal that includes ARM7TDMI
microprocessor core. It is made up of a CPU, encoder, interleaver, deinterleaver, Viterbi decoder, MOD/DEM, and
vocoder. MSM3000, when operated in the CDMA mode, utilizes CHIPX8 (9.8304MHz) as the reference clock that
is received from IFR3000, and uses TCXO (19.68MHz) that is received from U174. CPU controls the terminal
operation. Digital voice data that have been inputted are voice-encoded and variable-rated. Then, they are
convolutionally encoded so that error detection and correction are possible. Coded symbols are interleaved in order
to cope with multi-path fading. Each data channel is scrambled by the long code PN sequence of the user in order to
ensure the confidentiality of calls.
Moreover, binary quadrature codes are used based on Walsh functions in order to discern each channel.
Data created thus are 4-phase modulated by one pair of Pilot PN code and they are used to create I and Q data.
When received, I and Q data are demodulated into symbols by the demodulator and then, de-interleaved in reverse
to the case of transmission. Then, the errors of data received from Viterbi decoder are detected and corrected. They
are voice decoded at the vocoder in order to output digital voice data.
The MSM3000 has a improved feature not found on the MSM2300. The MSM3000 supports Enhanced Variable
Rate Coder (EVRC) operation in addition to the standard 8k and 13k vocoding rating.
3.3.4 Memory Part
Memory part consisit of Flash Memory,SRAM and EEPROM.
In the Flash Memory part included SRAM of U308 (8M x 2M bits), there are programs used for terminal operation.
The programs can be changed through down loading after the assembling of terminals. On the SRAM(2Mbits), data
generated during the terminal operation are stored temporarily. On EEPROM (128Kbits) which is U307, non-volatile
data such as unique numbers (ESN) of terminals are stored.
3.3.5 Power Supply Part
When the External DC (4.2V) is fed to the five regulators generated +3.0V. The generated voltages are used for
MSM3000, IFT3000,IFR3000, audio codec, and other LOGIC parts. PWR ASIC is operated by the control signal
SLEEP/ from MSM3000 and POWER_EN signal. Q606(DTC114EE) is turned on by ON_SW_SEN
SE/ and then, 'L' is outputted on ON_SW_SENSE/. MSM receives this signal and then, recognizes that the POWER
key has been pressed. During this time, MSM outputs PS_HOLD as 'H' and then, continues to activate D603 in
order to maintain power even if the PWR key is separated.
3.3.6 Logic Part
The Logic part consists of internal CPU of MSM, RAM, ROM and EEPROM. The MSM3000 receives TCXO
(=19.68Mz) from U7 and CHIPX8 clock signals from the IFR3000, and then controls the phone during the CDMA
and the FM mode. The major components are as follows:
CPU : ARM7TDMI core
FLASH MEMORY + SRAM: U308 (LRS13061)
• FLASH ROM : 8Mbits
• STATIC RAM : 2Mbits
EEPROM : U307 (X84129S161-2.5)
• 128Kbits EEPROM
CPU
ARM7TDMI CMOS type 16-bit microprocessor is used and CPU controls all the circuitry. For the CPU clock,
27MHz is used.
FLASH ROM and SRAM
Flash ROM is used to store the terminal’s program. Using the down-loading program, the program can be changed
even after the terminal is fully assembled.
SRAM is used to store the internal flag information, call processing data, and timer data.
4. Level Translator Part
4.1 L/T supply power to Modem(4.2V).
VEXT_DC
+4.2V
DC/Jack
(small)
Fixed
LDO
DC/Jack
(large)
Adjustable LDO
+5V
max(207)
[Fig 4-1] The Block Diagram of Source (in brief)
4.2 UART Interface
The Universal Asynchronous Receiver Transmitter (UART) communicates with serial data that
conforms the RS-232 Interface protocol. The modem provides 3.0V CMOS level outputs and
3.0V CMOS switching input level. And all inputs have 5.0V tolerance but 3.0V or 3.3V CMOS
logic compatible signals are highly recommended.
All the control signals of the RS-232 signals are active low, but data signals of RXD, and TXD
are active high.
The UART has a 64byte transmit (TX) FIFO and a 64byte receive (RX) FIFO. The UART
Features hardware handshaking, programmable data sizes, programmable stop bits, and odd,
even, no parity. The UART operates at a 115.2kbps maximum bit rate.
4.2.1 UART Inter Pinouts
NAME
DP_DCD/
DP_RI/
DP_RTS/
DP_TXD
DESCRIPTION
Data Carrier Detect
Ring Indicator
Request to Send
Transmit Data
CHARACTERISTIC
Network connected from the modem
Output to host indicating coming call
Ready for receive from host
Output data from the modem
NAME
DP_DTR/
DP_RXD
DP_CTS/
GND
DESCRIPTION
Data Terminal Ready
Receive Data
Clear to Send
Signal Ground
CHARACTERISTIC
Host ready signal
Input data to the modem
Modem output signal
Signal ground
4.2.2 Signal level of RXD/TXD
Phone
LT
+3V
+3V
MAXIM207
+5V
PC
MSM_input
Vout = 2.8V
RS232
TX
•1
•3
•2
•4
RX
MSM_output
RS232
PHONE
TX•
RX•
TX•
RX•
VMAX = 7.68V
VMAX = 6.00V
VMAX = 3.00V
VMAX = 4.88V
VMIN = -7.68V
VMIN = -5.84V
VMIN = 0V
VMIN = 0V
[Figure 4-2] Signal Level of RXD, TXD
4.3 LED State Indication
Name
Enable
Description
D17(SMS)
Low
Shot Message Service
D1(BUSY)
Low
State that Data transmit and receive between DTE and
DCE
D2(IDLE)
Low
Stable State
4.4 The function of Real Audio Test( including Voice Test)
NAME
MIC+
MICEAR
GND_A
TYPE
IS
DESCRIPSION
Microphone audio input
Ear/microphone set detect
Ear audio output
Audio ground
CHAPTER 4. FCC Notice
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference
to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to
try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
APPENDIX
1. Assembly and Disassembly Diagram
2. Block & Circuit Diagram
3. Part List
4. Component Layout
1. Assembly and Disassembly Diagram
9pin connector (UART 1)
UART 2
AUX_PCM
KEYSENSE
LED
60 pin connector
DATA
On/Off
Switch
GPIO
DC Jack
(large)
Ear_Jack
for DTSS
DC Jack
(small)
DTSS
Ear_Jack
for DTS
Ant_cable
DTS
3 pin connector
M IC +
EA R
GND
M IC 432 1
2. Block & Circuit Diagram
2.1. MODEM Block Diagram
2.2. CDK Block Diagram
3. Part List
3-1. MODEM Part List
NO COMPONENT NAME
DESCRIPTION
Lay.
DESIGN NUMBER
Q'ty
MAKER
1SV273
Varactor Diode
Top
D104,D105,D203,D204
Toshiba
2SC4617
TR
Top
Q501
ROHM
2SC5006-T1
TR-IF AMP
Top
Q201
NEC
CMY210
Down Mixer
Top
U203
SIEMENS
DTC124EE
TR
Top
Q101,Q502,Q503,Q504
ROHM
DTA143EE
TR
Top
Q601
ROHM
F0805B3R00FW
Fuze
Bot
L605
AVX
FDC634P
MODFET
Top
U103
FAIRCHILD
FDDG8388A1
Duplexer
Top
F101
LG
10 FS0085D5
RX IF SAW
Top
F202
LG
11 FS0836B1
TX RF SAW
Top
F102,F103
LG
12 FS0881B1
RX RF SAW
Top
F201
LG
13 HSMP389C
Diode
Top
D201,D202
HP
14 IFR3000
RX AGC+BBA
Top
U204
QUALCOMM
15 IFT3000
TX AGC+BBA
Top
U105
QUALCOMM
16 KT16-DC30L-19.68M
VCTCXO
Top
U174
AVX
17 LMX2332-LTMG
PLL IC
Top
U172
NS
18 LMC7101AIM
OP AMP
Top
U151
MICREL
19 LRS13061
Flash + SRAM
Bot
U308
SHARP
20 MCA-ST-00T
Mobile Switch
Bot
MS101
SUNRIDGE
21 MIC5219-3.0
LDO
Bot
U605
MICREL
Top
U602,U603,U606
22 MIC5245-3.0BM5
LDO : +3.0V/150mA
Bot
U604
RICOH
23 MRFIC0954
Up MIX+Dr AMP
Top
U104
MOTOROLA
24 MSM3000-BGA
uBGA
Bot
U301
QUALCOMM
25 NC7SZ125P5
Delay Device
Bot
U306
FAIRCHILD
26 NDS332P
P-CH FET
Bot
Q350
FAIRCHILD
27 NT732ATD 683K
Thermistor
Top
TH151
KOA
28 RI23124U
PAM
Top
U102
CONEXANT
29 RF2361
LNA
Top
U201
RFMD
30 SSP-7T
32.768KHz OSC
Bot
X302
SEIKO
31 SSR27.00-BR-C15
Resonator
Bot
X301
AVX
32 TC7WH04FK
Invertor
Top
U202
TOSHIBA
33 TC7S04FU
•
Bot
U350
TOSHIBA
34 TWL1103-PBSR
CODEC
Bot
U401
TI
35 UMC4N
TR
Top
Q102,Q505
ROHM
36 UMH2N
TR
Bot
Q405
ROHM
37 UPC8151TB
Buffer
Top
U173
NEC
38 VC-3R0A80-0967A
VCO
Top
U171
FUJITSU
39 VA-A1608-5R5J
•
Bot
VD501
•
CERATECH
40 X84129S161-2.5
EEPROM
Bot
U307
XICOR
41 0805CS-270XGBC
27nH-2012 Coil Ind
Top
L114
COIL CRAFT
42 0805CS-680XGBC
68nH-2012 Coil Ind
Top
L217
COIL CRAFT
43 0805CS-121XJBC
120nH-2012 Coil Ind
Top
L111,L143
COIL CRAFT
44 0805CS-180XJBC
180nH-2012 Coil Ind
Top
L214,L215
COIL CRAFT
45 CI-B1608-12NKJT
1.2nH-1608 Inductor
Top
L109
CERATECH
46 CI-B1608-33NKJT
3.3nH-1608 Inductor
Top
L203
CERATECH
47 CI-B1608-68NSJT
6.8nH-1608 Inductor
Top
L105,L107,L207
CERATECH
48 CI-B1608-82NKJT
8.2nH-1608 Inductor
Top
L218,L211
CERATECH
49 CI-B1608-100JJT
10nH-1608 Inductor
Top
L106,L173
CERATECH
50 CI-B1608-120JJT
12nH-1608 Inductor
Top
L104,L108,L206
CERATECH
51 CI-B1608-150KJT
15nH-1608 Inductor
Top
L209
CERATECH
52 CI-B1608-680KJT
68nH-1608 Inductor
Top
L213
CERATECH
53 CI-B1608-820KJT
82nH-1608 Inductor
Top
L110
CERATECH
54 CI-B1608-101KJT
100nH-1608 Inductor
Top
L201,L202,L204,L205
CERATECH
55 FI-B1608-271KJT
270nH-1608 Inductor
Top
L220
CERATECH
56 FI-B1608-182KJT
1.8uH-1608 Inductor
Top
L112,L113
CERATECH
57 FI-A1608-272KJT
2.7uH-1608 Inductor
Top
L212
CERATECH
58 HB-1M2012-601JT
INDUCTOR (Bead)
Bot
L402
CERATECH
59 HB-1B2012-222JT
INDUCTOR (Bead)
Bot
L401
CERATECH
L115,L121,L172,L174,L190,
Top
60 BLM11A601SPT
INDUCTOR (Bead)
L210,L216, L230,L602
CERATECH
Bot
L604
61 GRM36C0G0R5C50PT
0.5pF-1005 Capacitor
Top
C188
MURATA
62 GRM36C0G1R5C50PT
1.5pF-1005 Capacitor
Top
C120,C225
MURATA
63 GRM36C0G020C50PT
2pF-1005 Capacitor
Top
C209,C223
MURATA
64 GRM36C0G030C50PT
3pF-1005 Capacitor
Top
C219
MURATA•
65 GRM36C0G040C50PT
4pF-1005 Capacitor
Top
C144,C145,C213,C222
MURATA
66 GRM36C0G060C50PT
6pF-1005 Capacitor
Top
C113
MURATA
67 GRM36C0G070D50PT
7pF-1005 Capacitor
Top
C123,C124,C143,C147,C148
MURATA
68 GRM36C0G080D50PT
8pF-1005 Capacitor
Top
C237,C226,C227
MURATA
Top
C146,C152,C216
69 GRM36C0G100D50PT
10pF-1005 Capacitor
Bot
C323
Top
C138
Top
C125
Bot
C329,C330,C302,C303
70 GRM36C0G120J50PT
12pF-1005 Capacitor
71 GRM36COG150J50PT
15pF-1005 Cap
MURATA
MURATA
MURATA
73 GRM36C0G270J50PT
27pF-1005 Capacitor
Top
C190
MURATA
74 GRM36C0G330J50PT
33pF-1005 Capacitor
Top
C217,C220
MURATA
75 GRM36C0G560J50PT
56pF-1005 Capacitor
Top
C136,C137
MURATA
76 GRM36C0G820J50PT
82pF-1005 Capacitor
Top
C235,C236
MURATA
C108,C112,C114,C121,C122,
C175,C177,C178, C179,C180,
Top
77 GRM36COG101J50PT
C187,C189,C192,C193,C197,
22
100pF-1005 Cap
MURATA
C201,C204,C207,C208,C212,
C240,C506
Bot
C407,C408
C502,C504,C505,C507,C508,
Top
C509,C510, C511,C631,C632,
11
C634
78 GRM36COG471J50PT
470pF-1005 Cap
MURATA
C417,C421,C501,C503,C521,
C522,C523,C524,C525,C526,
C527,C528,C529,C530,C531,
C533,C534,C535,C536,C537,
Bot
C538,C539,C540,C541,C543,
45
C545,C546,C547,C548,C549,
C550,C551,C552,C553,C554,
C556,C557,C558,C559,C560,
C561,C562,C563,C610,C633
C110,C116,C119,C172,C173,
79 GRM36X7R102K50PT
1nF-1005 Capacitor
Top
MURATA
C181,C191,C195, C215
C111,C115,C127,C128,C129,
C130,C134,C135,C139,C151,
C171,C174,C176,C196,C203,
C206,C211,C218,C221,C224,
Top
39
C229,C231,C232,C233,C234,
80
GRM36X7R103K50PT
10nF-1005 Cap
MURATA
C238,C243,C245,C246,C248,
C312,C313,C315,C316,C317,
C318,C605,C607,C612
C311,C314,C322,C324,C609,
Bot
C615,C622
81 GRM36X7R223K50PT
22nF-1005 Capacitor
Bot
C409
MURATA
82 GRM36X5R683K10PT
68nF-1005 Capacitor
Top
C155
MURATA
C106,C126,C132,C149,C194,
Top
C239,C241,C242,C244
83 GRM36Y5V104Z25PT
100nF-1005 Cap
MURATA
C309,C310,C320,C321,C401,
Bot
10
C402,C403, C404,C405,C613
84 GRM36Y5V105Z10PT
1uF-1005 Capacitor
Top
C230
MURATA
85 GRM39X7R183K25PT
18nF-1608 Capacitor
Top
C183
MURATA
86 GRM39X7R223K50PT
22nF-1608 Capacitor
Top
C185
MURATA
Top
C133,C182,C184
87 GRM39Y5V224Z16PT
220nF-1608 Cap
Bot
C308
Top
C131
Bot
C301
Bot
C413
88 GRM39Y5V684Z25PT
89 GRM39Y5V105Z10PN
MURATA
680nF-1608 Cap
1uF-1608 Cap
MURATA
MURATA
C109,C140,C186,C228,C604,
Top
90 TA-6R3TCMS4R7M-PR
Tan Cap (4.7uF/6.3V/P)
C606
Bot
C608
TOWA
91 TA-010TCM4R7S-AR
4.7uF/10V/A
92 TA-6R3TCMS100M-PR
Tan Cap (10uF/6.3V/P)
Bot
•
Top
C199,C621
Bot
C350,C406,C410,C416
TOWA
TOWA
93 TA-010TCMS100K-AR
10uF/10V/A
Bot
C611
TOWA
94 TA-6R3TCMS220K-AR
22uF/10V/A
Bot
C415
TOWA
Bot
C630
TOWA
Top
R121,R197,R224,R247,R248
Bot
R542,R555
Tan
Cap
95 TA-6R3TCMS470K-B2
(47uF/6.3V/B2)
96 MCR01MZSJX000
0Ω 5%-1005 Resistor
ROHM
97 MCR01MZSJ100
10Ω-1005 Resistor
Bot
R401
ROHM
98 MCR01MZSJ120
12Ω-1005 Resistor
Top
R141
ROHM
99 MCR01MZSJ150
15Ω-1005 Resistor
Top
R170,R207
ROHM
100 MCR01MZSJ220
22Ω-1005 Resistor
Top
R177,R181
ROHM
101 MCR01MZSJ560
56Ω-1005 Resistor
Top
R208
ROHM
102 MCR01MZSJ101
100Ω-1005 Resistor
Top
R111,R176,R183,R201,R203
ROHM
103 MCR01MZSJ221
220Ω-1005 Resistor
Top
R179
ROHM
104 MCR01MZSJ331
330Ω-1005 Resistor
Bot
R406,R407,R408
ROHM
R142,R144,R204,R504,R507,
Top
R508,R519,R520
R501,R502,R521,R522,R523,
R524,R525,R526,R527,R528,
R529,R530,R531,R533,R534,
105 MCR01MZSJX471
470Ω 5%-1005 Resistor
ROHM
R535,R536,R537,R538,R539,
Bot
R540,R541,R543,R545,R546,
41
R547,R548,R549,R550,R551,
R552,R553,R554,R556,R557
,R558,R559,R560,R561,R562,
R563
106 MCR01MZSJ751
750Ω-1005 Resistor
Bot
R306
ROHM
107 MCR01MZSJ821
820Ω-1005 Resistor
Bot
R338
ROHM
108 MCR01MZS102
1kΩ-1005 Resistor
Top
ROHM
R109,R143,R171,R172,R173,
R209
109 MCR01MZSJ152
1.5kΩ-1005 Resistor
Bot
R317
ROHM
110 MCR01MZSJ182
1.8kΩ-1005 Resistor
Bot
R318
ROHM
Top
R205
111 MCR01MZSJ202
2KΩ 5%-1005 Resistor
Bot
R403
ROHM
112 MCR01MZSJ272
2.7kΩ-1005 Resistor
Top
R174,R206
ROHM
113 MCR01MZSJX332
3.3KΩ 5%-1005
Top
R112
ROHM
Resistor
114 MCR01MZSJ392
Bot
R303
3.9kΩ-1005 Resistor
Top
R175
4.7KΩ 5%-1005
Top
R532
Resistor
Bot
R304,R316,R340,R402
8.2kΩ-1005 Resistor
Top
R213
ROHM
10
ROHM
ROHM•
ROHM
115 MCR01MZSJX472
116 MCR01MZSJ822
ROHM
ROHM
R108,R117,R118,R119,R210,
Top
R211,R505, R510,R513,R514
117 MCR01MZSJX103
10KΩ 5%-1005 Resistor
R301,R302,R305,R312,R313,
Bot
R349,R350,R615
118 MCR01MZSJ183
18kΩ-1005 Resistor
119 MCR01MZSJX223
22KΩ 5%-1005 Resistor
Bot
R608
Top
R503,R509,R512,R515
Bot
R307,R315,R614
ROHM
120 MCR01MZSJ363
36kΩ-1005 Resistor
Top
R114,R212
ROHM
121 MCR01MZSJ393
39kΩ-1005 Resistor
Top
R511
ROHM
122 MCR01MZSJ473
47kΩ-1005 Resistor
Bot
R405,R410
ROHM
100KΩ 5%-1005
Top
R113,R202
Resistor
Bot
R421,R422
220kΩ-1005 Resistor
Top
R110,R115,R214
ROHM
Top
R165
ROHM
Top
R151
ROHM
Top
R116
ROHM
Top
R152
ROHM
Top
R164
ROHM
Bot
R404
ROHM
Top
R157
ROHM
Top
R159
ROHM
Top
R156,R158
ROHM
Top
R166,R167
Bot
•
•
•
123 MCR01MZSJX104
124 MCR01MZSJ224
ROHM
24.9kΩ
1%-1005
125 MCR01MZSF2492
Resistor
49.9kΩ
1%-1005
126 MCR01MZSF4992
Resistor
61.9kΩ
1%-1005
127 MCR01MZSF6192
Resistor
128 MCR01MZSF6802
68kΩ 1%-1005 Resistor
80.6kΩ
1%-1005
129 MCR01MZSF8062
Resistor
100kΩ 1%-1005
130 MCR01MZSF1003
Resistor
174kΩ
1%-1005
131 MCR01MZSF1743
Resistor
200kΩ
1%-1005
132 MCR01MZSF2003
Resistor
470kΩ
1%-1005
133 MCR01MZSF4703
Resistor
134 MCR01MZSFX1004
135 DTS-800 V1.0 PCB
1MΩ 1%-1005 Resistor
Main PCB
ROHM
LGE
136 B06F-4001-016
60 Pin Connector
137 DTS800 REAR
Top
CN501
SAMTEK
REAR CASE
JUNG IL
138 DTS800 FRONT
FRONT CASE
JUNG IL
139 DTS800 LABEL
LABEL
SHINHUNG
14
•
27
•
C107,C198,C202,C205,C210,
140 DNI
Top
•
L102,L103,L208,R153,R154,
R155,R178,R180,R182
C305,C411,C412,C414,C542,
C555,C614,C616,L403,L404,
R308,R310,R314,R333,R337,
141 DNI
Bot
•
R339,R409,R604,R605,R607,
R612,R613,Q302, Q602,Q604,
D602,D603,
3-2. Level Translator Partlist
NO COMPONENT NAME
DESCRIPTION
Lay. DESIGN NUMBER
Q'ty
MAKER
SP207-EA(24pin SSOP)
RS232 TRANSCEIVER
Bot
U1,U2
SIPEX
MIC29150-5.0BU
LDO (5V)
Bot
U4
MICREL
EZ1086CM
LDO (Adjustable)
Bot
U3
SEMTECH
HDEP-9P
Top
CN4,CN5
HIROSE
PIN
CONN.(ANGLE
TYPE)
CON60_1.27_3
60 PIN CONN. (MALE)
Top
CN1
SKY
HSJ1621-019011
EAR JACK
Top
U5,U15
HOSIDEN
MCA R/A TO MCX R/A
ANT_CABLE
Top
U7
KUKJE CON.
DC JACK(Large)
DC POWER JACK(large)
Top
J1
KUKJE CON.
DC JACK(Small)
DC POWER JACK(small)
Top
J2
KUKJE CON.
10 53047-0310
3 PIN CONN
Top
CN10
KUKJE CON.
11 Toggle 2p S/W
SWITCH
Top
SW1
KUKJE CON.
12 UMT2907A
TR(PNP)
Bot
Q1,Q2, Q3
ROHM
13 MB-S800
ANTENNA
HANKOOK ANT
14 SML-310MTT86
LED GREEN
Bot
D4,D6,D8,D10,D12,D14,D16 7
ROHM
15 SML-310YTT86
LED YELLOW GREEN
Bot
D3,D5,D7,D9,D11,D13,D15 7
ROHM
16 SML-310LTT86
LED RED
Bot
D1,D2, D17
ROHM
17 595D107X0016C2T
TANTAL CAP. (100UF/16V)
Bot
C10,C11
VISHAY
18 595D227X0010T2T
TANTAL CAP. (220UF/10V)
Bot
C9
VISHAY
19 TA-035TCMR10M-AR
TANTAL CAP. (0.1UF/35V)
Bot
C1~C8
TOWA
20 MCR03MZSJX102
RESISTOR(1608) 1K
Bot
R7~R13
ROHM
21 MCR04MZSJX101
RESISTOR (1608) 100R
Bot
R3,R4,R14,R16,R17,R18
ROHM
22 MCR05MZSJX331
RESISTOR (1608) 330R
Bot
R5
ROHM
23 MCR06MZSJX681
RESISTOR(1608) 680R
Bot
R6
ROHM
24 MCR07MZSJX332
RESISTOR (1608) 3.3K
Bot
R1,R2,R15
ROHM

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Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
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PDF Version                     : 1.2
Linearized                      : Yes
Create Date                     : 2002:01:22 09:42:22
Producer                        : Acrobat Distiller 4.0 for Windows
Modify Date                     : 2002:01:22 09:42:25-05:00
Page Count                      : 38

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