Tait TP9100 - Page 50

50 Circuit Descriptions TP9100 Service Manual
© Tait Electronics Limited May 2005
Figure 3.1 Hardware architecture
Power Supply
Receiver
Transmitter
Frequency
Synthesizer
DSP
CODEC
and Audio
Interfaces
Digital
RF Connector
Internal Speaker Pins Accessory Connector
LPF
1)
PIN Switch
1)
Front-Panel Interface Connector
Battery Pins
Main Board
FPGA
RISC
Proc.
Serial
Flash
SRAM
Flash
Memory
part of transmitter circuitry analog-to-digital converter
2)
digital-to-analog converter
2)
part of CODEC and audio circuitry2)
1)
digital RF analog asynchronous serial data synchronous serial data
Custom
Logic
On/Off
Switch
Volume
Pot
16-Posn.
Switch
3-Posn.
Switch
PTT
Switch
Emergency
Key
Function
Keys 1/2
Front-Panel Interface Board
Accele-
rometer
LCD
16-Button
Keypad