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3.2.5 Transmitter Part Description
Tx Block Diagram
➀
Tx I/Q signal from ABB signal
➁
PAM - input and output signals
Standard I/Q interface GSM/EDGE/IS-136
Ant
Reference voltage
for TX power level
and power profile
PA
Comparator
PD2
PD1
Reference
frequency
TIC VCO
UHF
Synth.
LPF1
PFD1
/n
/n
Power Detector 20dB range
Power Detector 20dB range
IF VGA
70dB range
I/Q Modulator
CX74045
1
2
3
4
5
6
7
8
9
10
11
CX74046
CX77316
TXQP
TXQN
TXIN
TXIP
Coupler output
GSM850 OUT
DCS/PCS OUT
GSM850 IN
DCS/PCS IN
Z3X-BOX.COM
Содержание CE500
Страница 1: ...Service Manual Model CE500 Service Manual CE500 Date September 2005 Issue 1 0 Z 3 X B O X C O M ...
Страница 3: ... 4 Z 3 X B O X C O M ...
Страница 14: ...3 Technical Brief 15 3 1 4 Digital Baseband DBB Processor Block diagram of the AD6532 Z 3 X B O X C O M ...
Страница 36: ...4 TROUBLE SHOOTING 37 Test Point VEXT VRTC VMEM VINT VSIM VPLL VUSB VABB VTCXO VCORE VMIC Z 3 X B O X C O M ...
Страница 77: ...4 TROUBLE SHOOTING 78 5 Check Tx I Q TXQP TXQN TXIN TXIP U704 Test Point Z 3 X B O X C O M ...
Страница 85: ...Note 86 Z 3 X B O X C O M ...
Страница 93: ... 94 8 PCB LAYOUT Z 3 X B O X C O M ...
Страница 94: ... 95 8 PCB LAYOUT Z 3 X B O X C O M ...
Страница 95: ... 96 Z 3 X B O X C O M ...
Страница 103: ...9 CALIBRATION 104 L Standalone Test Equipment Setup Oscilloscope Z 3 X B O X C O M ...
Страница 105: ... 106 Z 3 X B O X C O M ...
Страница 127: ...Note 128 Z 3 X B O X C O M ...