Block Diagram - RCA RDR9000 Service Manual

Service Manual

7.5 Block Diagram

MOD1
TV1_APC
4CH DAC
CV Buffer
OP
Adapt
Control
OMAP
Block Diagram (RF Section)
Pre-Driver 1
Pre-Driver 2
TX VCO
1 2
Pi Attenuator
Tx_VCO
RX/TX VCO RX/TX VCO
Buffer Amplifier
LPF
Rx_VCO
4-Pole RC Filter LPF
Frequency
Synthesizer
From OMAP
Ref. Osc
19.2 MHz
Adapt CV
CV OUT
SW SW
CV-Read
Control
Reference OSC Signal
I/Q Signal
1
AD9864
Pi Attenuator
IF Processor IF Amp IF Filter
Microstrip
Drive-stage Final-stage
Matcher
Gate Voltage Control
Subtracter
I/V Convertor
BATT+
LPF
2
Mixer
Low-Noise Amp
Band-Pass Filter 2 Band-Pass Filter 1
141
7. UHF3 (350-400 MHz) Information
Low-Pass Filter
Tx/Rx Switch
TV1_APC
RF Power
Detector
Low-Noise Amp
GPS/BDS
Module
TV1 /APC
Stop Band Filter
ANT
HPF
BPF
TO OMAP