Figure 2.14 Identifying The Circuitry On The Digital And System Interface Boards - Tait TB8100 Service Manual

Figure 2.14 Identifying the circuitry on the digital and system interface boards
b
system interface board
c CODECs
d SRAM
e RISC JTAG connector (factory use only)
f flash memory
g RISC
h DSP
i DSP JTAG connector (factory use only)
j main digital system
1) power supply
1! digital IF and clock
1@ DDC
1# ADC
1$ 40MHz digital clock
1%
16.9MHz IF (VHF) / 70.1MHz IF (UHF)
1^ 12.8MHz reference
1& audio
1* high speed data connector
1( third-party connector
TB8100 Service Manual
© Tait Electronics Limited September 2006
1(
1*
1&
1^
1%
1$
1#
1@
1!
1)
VHF (B-band) reciter shown fitted
with isolated system interface board
b
c
d
e
f
g
h
i
j
Reciter Circuit Description 61