Hytera RD98 Series - Block Diagram

RD980
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PA
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MOSFET
RD01
Pre-driver
MOSFET
RD07
Driver
LDMOS
PD85035S-2
Power sensor
Harmonics Filters
RF Out
LDMOS
PD85035S-1
Matching/
Attenuation
5dB
Wideband
Matching
Network
50ohm
Matching
Network
13.6V,12A˄B+˅
28.5dBm
48.5dBm
Temp Sensor
ADC
0 0
0 0
0
DAC
Vset
APC
35.5dBm
V_Contr
Pr_DET
uP/DSP(BB)
RTH1,RTH2
Pad
Attenuator/20dB
Pad Attenuator
Log Amp
Po=47.5dBm
RFC RFC
RFC
ADC
Matching
13dBm
IL:<1.0dB
V_APC
Pf_DET
Sample FWD
Final_Bias(5V)
RFIN
5V LDO
XC6209F502P
R
5V
9.3V,1A
RF In
Bias_Setting
DAC
9V
Voltage
Regulator
9.3V,3A
7809
13.6V (B+)
PA_Enable
Diff. Amp
Diff. Amp
Temp_Protect_Volt
VSWR_Protect_Volt
RD98X Block Diagram (PA Section)
12.5 Block Dia
g
ram
275