Function Of All Active Devices - Samsung STH-N271 Service Manual

4. STH-N271 Function of All Active Devices
No Reference
1 U203
2 U101
3 U304
4 U305
5 U307
6 OSC301 ENFVF1A2ST4
7 OSC303 ENFVH112SA5
8 OSC302
9 U301
10 U102
Vendor Code
D5205 Baseband Engine Chip: IS-137 TDMA /AMPS solution
D5204-22 Interface Chip
uPC8015 RF one chip module: RF/IF Synthesizer, 2-Mixers, AGC,
Q-DEMOD,UP converter
RF2162 Power Amplifier: Cellular band linear amplifier
RF2376TR73 Driver Amp: linear variable amplifier suitable for cellular band
RF VCO: dual band RF voltage control oscillator (999MHz ~ 1025,
2060 ~2121MHz)
IF VCO: dual band IF voltage control oscillator
(175.05MHz, 211MHz)
TCO-9133F TCXO: 14.4MHz for reference clock
RF2363TR7 LNA: dual band Low Noise Amplifier
LM4882 Audio Amp: external audio amplifier
SAMSUNG Proprietary-Contents may change without notice
Description
4-1