HTC VOGU100 Pocket PC phone User Manual Manual Part 2

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Document ID	818471
Application ID	RaT4ZWv8LiKj3J4mTo3GkA==
Document Description	Manual Part 2
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	5.67kB (70897 bits)
Date Submitted	2007-07-19 00:00:00
Date Available	2008-01-15 00:00:00
Creation Date	2007-07-06 09:48:26
Producing Software	AFPL Ghostscript 8.54
Document Lastmod	2007-07-10 18:20:51
Document Title	VOGU100_CDMA Block Diagram and Operational Description
Document Creator	PDFCreator Version 0.9.2
Document Author:	Cathy

宏達國際股份有限公司
High Tech Computer, Corp.
Vogue Block Diagram and
Operational Description
This specification is subject to change without notice
This confidential document is High Tech. Corp property and may not be copied or circulated without permission.
HTC CONFIDENTIAL
宏達國際股份有限公司
High Tech Computer, Corp.
Block Diagram
Block Diagrams for CDMA2000 RF section
PCS
PA
Primary
Cellular
PA
RFT6150
TX PLL
TCXO
Diplexer
PLL0
MSM Device
RX0 PLL
TX PLL
RXIQ 0
PCS
GPS
Cellular
RXIQ 1
GPS
GPS
PLL1
RFR6500
RX1 PLL
Loop filter
Antennas
The primary for CDMA is of dual band internal type, while the individual one is of GPS own
antenna.
RF connectors
The RF connector is used for CDMA in the primary receiver chain. It is used for more reliable
and consistent measurements on RF performance. The RF connector, mounted on the PCB, is of
This specification is subject to change without notice
This confidential document is High Tech. Corp property and may not be copied or circulated without permission.
HTC CONFIDENTIAL
宏達國際股份有限公司
High Tech Computer, Corp.
coaxial type with switching function. In normal mode when the plug is not connected, RF
circuit is connecting with the external antenna. In test mode, when the plug of an RF cable is
connected, the RF circuit is connecting with the RF cable.
The other RF connector is for the GPS function.
RF circuits
RF circuit consists of an RF transmitter, two power amplifier modules, an RF receiver, one
diplexer, two duplexers.
RF transmit IC
The transmit IC includes an IQ modulator, LO generation and Distribution, one PLL circuit for
generating TX LO, TX VCO circuit and other various control circuits. Transmit IC receives
analog inputs and control signals from baseband chips and outputs RF signals to power
amplifiers.
Power amplifier modules
Power amplifier module is used to amplify the RF signal from RF transmit IC to a suitable level
meeting CDMA specifications.
RF receive IC
RF receive IC includes dual LNAs for Cellular and PCS bands, Rx LO generation and
Distribution, low pass filter, on-chip VCOs for CDMA Rx and GPS, and control circuits. RF
receive IC gets signals from the diplexer and duplexers, amplifies signals, and down-converts
signals to output to baseband chip.
RF diplexer and duplexers
RF diplexer is used to split Cellular signals and PCS signals. Two duplexers are used for
Cellular band and PCS band respectively. The duplexer is used to allow a transmitter operating
on one frequency and a receiver operating on a different frequency to share one common
antenna with a minimum of interaction and degradation of the different RF signals.
This specification is subject to change without notice
This confidential document is High Tech. Corp property and may not be copied or circulated without permission.
HTC CONFIDENTIAL
宏達國際股份有限公司
High Tech Computer, Corp.
CDMA Principle
CDMA RF Specification
Complies with IS-98E and IS-866 standard for CDMA 1xRTT and 1xEVDO respectively.
Mobile supports dual band operation, Band Class 0 and Band Class 1.
Band Class:
Class 0 (Cellular band)
Transmit band:
824.7 – 848.37MHz
Receive band:
Class 1 (PCS band)
Transmit band:
Receive band
869.7 – 893.31MHz
1851.25 – 1908.75MHz
1931.25 – 1988.75MHz
Channel Spacing: 1.25MHz
Sensitivity performance –106 dBm/ 1.23 MHz
Mobile Station Class:
Class III for band class 0
Nominal maximum output power: 23 – 30dBm
Class II for band class 1
Nominal maximum output power: 23 – 30dBm
CDMA RF Operation Description
This product adopts Qualcomm RadioOne Direct conversion architecture.
Local Oscillators
19.2MHz clock frequency should be observed from VC-TCXO.
RF Transmitter IC
The output of transmitter should be within 824-849MHz for cellular band and within
1850-1910MHz for pcs band
RF Receiver IC
The input of receiver should be within 869-894MHz for cellular band and within
1930-1990MHz for pcs band
This specification is subject to change without notice
This confidential document is High Tech. Corp property and may not be copied or circulated without permission.
HTC CONFIDENTIAL

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Title                           : VOGU100_CDMA Block Diagram and Operational Description
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Author                          : Cathy

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