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參數(shù)資料
| 型號： | CX74070 |
| 英文描述： | CX74070 Receiver for PCS and GPS|Handset RF ICs:CDMA / CDMA2000 |
| 中文描述： | CX74070接收機PCS和全球定位系統(tǒng)|手機射頻集成電路：碼分多址/ CDMA2000的 |
| 文件頁數(shù)： | 11/23頁 |
| 文件大小： | 664K |
| 代理商： | CX74070 |
Rx ASIC for CDMA, AMPS, and PCS Applications
CX74001
101134A
March 5, 2002
Skyworks
11
Proprietary Information and Specifications are Subject to Change
Table 5. Mode Control Select Signal Switching
SLEEP
CELL/
PCS
FM
AMPS
CHAIN
CELL CDMA
CHAIN
PCS CDMA
CHAIN
0
X
X
OFF (Note 1)
OFF (Note 1)
OFF (Note 1)
1
0
0
ON
1
0
1
ON
1
1
X
ON
Key: 0 = Low, OFF
1 = High, ON
X = Do not care
Note 1
: All blocks except VCO, which is independently controlled by VCO_ON in this state.
Table 6. VCO_ON Control (SIF = 0)
VCO_ON
SLEEP
CELL/
PCS
CELLULAR VCO
PCS VCO
1
X
0
ON
1
X
1
ON
X
1
0
ON
X
1
1
ON
Key: 0 = Low, OFF
1 = High, ON
X = Do not care
Table 7. SIF Control – Single IF (SLEEP = 1)
VGA INPUT
SIF
CELL/
PCS
FM
AMPS
CDMA
PCS
VCO1
CELL
VCO2
PCS
0
0
0
ON
ON
0
0
1
ON
ON
0
1
X
ON
ON
1
0
0
ON
ON
1
0
1
ON
ON
1
1
X
ON
ON
Key: 0 = Low, OFF
1 = High, ON
X = Do not care
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