SignalFire Telemetry SFTS300LNA Radio Module User Manual March 09 submission manual

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Document ID	1146234
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Document Description	Manual
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Document Type	User Manual
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Date Submitted	2009-07-29 00:00:00
Date Available	2009-07-29 00:00:00
Creation Date	2009-07-22 09:09:38
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Document Author:	egould

SFTS Radio Board Interface Manual
Rev 4.0
3/15/2009
This document describes how to integrate the SignalFire radio into a system.
The interface to/from the SFTS radio board (SFTS-300-LNA) consists of three
connectors:
•
•
•
Power
Signal
Programming/Aux
Power
The power interface is a four pin, 2mm center-to-center connector. The pinout is as
follows:
1. Digital Power – Unregulated power that provides the CC1110 power through a
Micrel 5233 3.3V regulator. Voltage range is 3.5-12VDC at 50mA max.
2. PA Power – Unregulated power that provides the PA power through a 3.3V
regulator. Max current draw is approximately 350mA. 5% duty cycle max. Not
used on 10mW boards (connected to pin 1 on radio board)
3. GND
4. GND
Signal Interface
The signal interface connector is a ten pin, 2mm center-to-center connector. The pinout
is as follows:
1. P0.1 – Analog input 1, Digital I/O. Buffered by 20K/0.1uF
2. P0.0 – Analog input 0, Digital I/O. Buffered by 20K/0.1uF
3. P1.2 – Digital I/O. Unbuffered I/O line from CC1110
4. P1.1 – Green LED – Digital I/O. Unbuffered I/O line from CC1110
5. P1.3 – Digital I/O. Unbuffered I/O line from CC1110
6. P1.5/TX – Digital I/O, UART TX. Unbuffered I/O line from CC1110
7. P1.7 – Digital I/O. Unbuffered I/O line from CC1110
8. P1.4/RX – Digital I/O, UART RX. Unbuffered I/O line from CC1110
9. Regulated 3.3V from radio digital supply
10. P1.6 – Digital I/O. Unbuffered I/O line from CC1110 (GDO1)
Communication Interfaces
USART0-UART, Alt 2
USART1-SPI, Alt 1
P1.4, P1.5
P0.3, P0.4, P0.5
Programming/AUX
This is a ten pin connector with 2mm center-to-center spacing. It is arranged in a 5x2
pattern. The pinout is as follows:
1. P2.1/Debug 1 – Programming interface and External Watchdog Reset.
Toggled every time SW goes through the main loop for external watchdog
reset. Needs to be cycled at least every ½ second.
2. P0.7 – LNA power on SFTS-300. Analog input 7, Digital I/O. Unbuffered
I/O line to/from CC1110 on the SFTS-10.
3. P2.2/Debug 2 – Programming interface – may be used as digital I/O if
necessary. If pulled high during the entire startup sequence (blinking LEDs),
the configuration will be reset. Should be pulled down on motherboard if not
used.
4. P0.6 – Analog input 6, Digital I/O. Unbuffered I/O line from CC1110
5. RESET/n – CC1110 Reset Line – Should be pulled high on motherboard.
6. P2.0 – Power Amp Control – HW line from PA and switch control. Low
when PA is on and High when PA is off. Not connected on 10mA boards.
7. P0.4 – SPI MOSI
8. P0.5 – SPI MISO
9. P0.3 – SPI CLK
10. P1.0 – Red LED
EEPROM
The radio boards support a single serial (SPI) EEPROM. The following EEPROMs are
supported:
Manufacturer
Atmel
Microchip
Part Number
AT25640AN-10SU-2.7
25LC1024I/SM
Description
64 Kbit (8 Kbyte)
1 Mbit (128 Kbyte)
The footprint is a standard 8 pin SOIC with the following pinout:
1.
2.
3.
4.
CS/n
SO
WP/n (tied high)
GND
5.
6.
7.
8.
SI
SCK
HOLD/n (tied high)
VCC (2.7-5.5V)
SPI Interface
The radio module is often used as a SPI slave to another application processor. In
this case, the following connections must be made from the radio to the AP:
Signal Interface Connector
Pin 3 (P1.2 SPI1_SS) – SPI slave select aka Chip Select. Input to radio. CS must
be asserted before each packet, and must be negated between packets.
Pin 5 (P1.3 SPI1_SPCK) – SPI clock. Input to radio.
Pin 6 (P1.5 SPI1_MOSI) – SPI Master out, slave in. Input to radio.
Pin 7 (P1.7) – Radio Attention. Output from radio. Set when the radio has a
packet waiting for the host, and will be set after the host asserts CS to indicate the
radio is ready for the transfer to begin.
Pin 8 (P1.4 SPI1_MISO) – SPI Master In, slave out. Output from radio.
AUX Connector
Pin 4 (P0.6) – Radio Wakeup. Input to radio. Must be set at least xxms before
CS is asserted. Radio will not go to sleep when this is asserted low. Only for
sleeping nodes.
APPENDIX - FCC and IC Statements
This module may only be used in SignalFire Telemetry end products or products
designed by SignalFire for a 3rd party. Changes or modifications not expressly approved
by SignalFire Telemetry, Inc could void the user’s authority to operate the equipment.
SignalFire Telemetry Inc, Model SFTS-300-LNA This device complies with Part 15 of
the FCC Rules. Operation is subject to the following two conditions: (1) this device may
not cause harmful interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
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 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.
The final end product must be labeled in a visible area with the following:
Contains FCC ID: W8VSFTS300LNA, IC: 8373A-SFTS300LNA
This device has been designed to operate with the antennas listed below, and having a
maximum gain of 5 dB. Antennas not included in this list or having a gain greater than 5
dB are strictly prohibited for use with this device. The required antenna impedance is 50
ohms. To reduce potential radio interference to other users, the antenna type and its gain
should be so chosen that the equivalent isotropically radiated power (e. i. r. p.) is not
more than that permitted for successful communication.
Antennas:
Nearson
SFTS
Model S161AM-915 (Direct connection to radio only)
Model 9-4-ANT
(Requires Clamp-on Ferrite on coax cable)
WARNING!
FCC and IC Radiation Exposure Statement:
This equipment complies with FCC’s and IC’s RF radiation exposure limits set forth for
an uncontrolled environment under the following conditions:
1. This equipment should be installed and operated such that a minimum separation
distance of 20cm is maintained between the radiator (antenna) & user’s/nearby
person’s body at all times.
2. This transmitter must not be co-located or operating in conjunction with any other
antenna or transmitter.
Revision List
Date
3/14/08
5/22/08
9/2/08
12/4/08
3/15/09
Rev
1.0
2.0
3.0
3.1
4.0
Author
Scott K.
Scott K.
Scott K.
Scott K.
Scott K.
Change
Initial Release
Added support for additional I/O
Added support for SPI interface
Fixed doc on SPI
Added verbiage for FCC certification

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