UHF1(400-470MHz)
Block Diagram
3
9
Diagram of FGU
Frequency
Synthesizer
VCO_L
341.95-400MHz
RX
VCO_H
400-411.95MHz
RX
400-470MHz
TX
OMAP
Ref.Osc
19.2MHz
CV
SW
Adapt
SW
OP
DAC
TLV5614
MOD2+Freq error shift
MOD1
MCBSP2
From OMAP
MCSI1/SPI(CS1)
CV OUT
CV BUFFER
Adapt
Control
RX/TX
VCO Buffer
RX/TX
VCO Amplifier
LPF
BPF
680MHz-1040MHz
CV READ CTRL
LPF
TV/APC
OSC
Block Diagram of RX Unit
Tx/Rx Switch
S21:-0.2dB
S21:< -0.8dB
BW(-3dB):570MHZ
Stop band attenuation :-54dBc
AD9864
Band-pass Filter1
Low-Noise Amp
Band-pass Filter2
Mixer
IF Filter
IF Processor
IF Amp
OSC level:> 4dBm
S21:12dB
NF:< 3dB
Stop band attenuation(-2&IF1st) :-80dBc
IIP3:> 5dBm
TV1 /APC
S21:-7dB
NF:< -7dB
IIP3:> 20dBm
Center
Freq:73.35MHZ
S21:< -5dB
Adjacent
rejection(@25KHZ)
:> 42dBc
Stop band
attenuation(@-
4.5M):-85dBc
Gain:22dB
Po(-1dB):-22dBm
staic Ic:3.5mA
I/Q singal
S21:18dB
NF:< 1.2dB
IIP3:> 0dBm
S21:-2dB
S21:-5dB
Pi Attenuator
1
2
IL:0.5dB
Zin/Zout:470
R
Stop band filter
attenuation
coefficent >20dBc for
1st spurious image
frequence
OMAP
Ref.Osc
19.2MHz
4CH DAC
TLV5614
P
i A
tt
enuat
or
1
2
ANT
LPF
TV/APC
MCBSP2
RX
VCO
Block Diagram of TX Unit
Summary of Contents for PD502
Page 1: ...PORTABLE...
Page 5: ...VHF 136 174 MHz...
Page 13: ...VHF 136 174 MHz Exploded View and Packaging Guide 7 3 2 Packaging Guide...
Page 18: ...VHF 136 174 MHz Circuit Description 12...
Page 43: ...PCB 3 9 PCB VHF 136 174 MHz...
Page 44: ...PCB 3 VHF 136 174 MHz...
Page 71: ...UHF1 400 470 MHz...
Page 79: ...UHF1 400 470MHz Exploded View and Packaging Guide 7 3 2 Packaging Guide...
Page 84: ...UHF1 400 470MHz Circuit Description 12...
Page 108: ...UHF1 400 470MHz PCB 36 9 PCB...
Page 109: ...UHF1 400 470MHz PCB 37...
Page 136: ...1616300000260 2014 03 17 L07157 4...