6. BLOCK DIAGRAM
- 142 -
Main RF signal (black)
GSM TX :
GSM Tx RF signal
GSM RX :
GSM Rx RF signal
DCS TX :
DCS Tx RF signal
DCS RX :
DCS Rx RF signal
PCS TX :
PCS Tx RF signal
PCS RX :
PCS Rx RF signal
Control signal(red)
ANT_SEL 0,1,2 :
Ant Switch Module Mode Selection
(WCDMA, GSM Tx/Rx, DCS Tx/Rx, PCS Tx/Rx)
GSM PA_CTL signal
GSM_PA_BAND :
DCS or PCS /GSM Mode Selection
GSM_PA_EN :
Power Amp Gain Control Enable
GSM_PA_RAMP :
Power Amp Gain Control
GSM/DCS_VCO_EN
GSM_VCO_EN :
GSM band Tx VCO Enable
DCS_VCO_EN :
DCS band Tx VCO Enable
UMTS PA_CTL signal
PA_ON :
WCDMA Tx Power Amp Enable
PA_RANGE0 :
WCDMA Tx Power Amp Gain Control
TRK_LO_ADJ :
TCXO(19.2M) Control
UHF_VCO_BAND_SEL :
WCDMA(3G)/GSM(2G) VCO Band Selection of UHF VCO
Содержание U890
Страница 1: ...Date April 2006 Issue 1 0 Service Manual Model U890 U890c Service Manual U890 U890c ...
Страница 3: ... 4 ...
Страница 20: ...3 TECHNICAL BRIEF 21 ...
Страница 46: ...3 TECHNICAL BRIEF 47 Figure PM6650 2 Functional Block Diagram ...
Страница 70: ...4 TROUBLE SHOOTING 71 4 2 SIGNAL PATH ...
Страница 109: ...4 TROUBLE SHOOTING 110 CN600 50pin LCD connector CN901 C907 C911 FB901 FB902 ...
Страница 115: ...4 TROUBLE SHOOTING 116 C226 C227 for MIC serial capacitor ...
Страница 118: ...4 TROUBLE SHOOTING 119 Q400 Q401 Q402 VBATT GND ...
Страница 139: ...Table 2 1 1 RF Block Component 6 BLOCK DIAGRAM 140 ...
Страница 140: ...6 BLOCK DIAGRAM 141 6 2 Interface Diagram U890 Interface Diagram ...
Страница 142: ...6 BLOCK DIAGRAM 143 Top Side ...
Страница 143: ...6 BLOCK DIAGRAM 144 Bottom Side ...
Страница 152: ... 153 8 pcb layout ...
Страница 153: ... 154 8 pcb layout ...
Страница 154: ... 155 8 pcb layout ...
Страница 155: ... 156 8 pcb layout ...
Страница 156: ... 157 8 pcb layout ...
Страница 157: ... 158 8 pcb layout ...
Страница 163: ...9 CALIBRATION 164 9 3 HOT KIMCHI Example Choose_U890 ...
Страница 164: ...9 CALIBRATION 165 Click APPLY button Click START button ...
Страница 165: ...9 CALIBRATION 166 Click Run button to lunch RF AUTOTEST ...
Страница 167: ... 168 ...
Страница 191: ...Note ...
Страница 192: ...Note ...