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參數(shù)資料
| 型號： | CX74005 |
| 英文描述： | CX74005 VGA and I/Q Demodulator for CDMA/AMPS/PCS|Handset RF ICs:CDMA / CDMA2000 |
| 中文描述： | CX74005顯卡和I / Q解調(diào)器的CDMA / AMPS二元/件|手機(jī)射頻集成電路：碼分多址/ CDMA2000的 |
| 文件頁數(shù)： | 10/23頁 |
| 文件大?。?/td> | 664K |
| 代理商： | CX74005 |
CX74001
Rx ASIC for CDMA, AMPS, and PCS Applications
10
Skyworks
101134A
Proprietary Information and Specifications are Subject to Change
March 5, 2002
Table 4. CX74001 Rx ASIC Electrical Specifications (3 of 3)
(T
A
= 25
°
C, VCC = 3.0 V)
Parameter
Symbol
Test Condition
Minimum
Typical
Maximum
Units
VGA and IQ Cascaded Performance
Input Frequency Range (-2 dB)
50
300
MHz
Input impedance:
CDMA (differential)
AMPS(single-ended)
PCS (differential)
1000
1000
1000
Cascaded Noise Figure:
@ Max Gain
@ Min Gain
5
50
7
dB
dB
VGA control range
0.5
2.5
V
Gain:
Minimum (AMPS)
Minimum (CDMA)
Minimum (PCS)
Maximum (AMPS)
Maximum (CDMA)
Maximum (PCS)
–35
–43
–47.5
59
51
48
–30
–38
–42.5
63
55
52
–25
–33
–37.5
66
59
56
dB
dB
dB
dB
dB
dB
Gain Slope
30
45
70
dB/V
Gain variation over Signal Bandwidth:
CDMA and PCS (1 kHz-630 kHz)
AMPS (100 Hz-15 kHz)
0.2
0.2
0.55
0.55
dB
dB
Gain variation over temperature and supply
±
2
dB
Input 1 db compression at minimum gain
–10
–8
dBm
OIP3 @ greater than 30 dB gain
4
5.5
dBm
Output (1dB compression)
1.25
Vppd
Output Common Mode Voltage Variation Over Supply
0.9
1.8
V
I-Ib and Q-Qb DC Offset
2
6
mV
I-Q Gain Mismatch
0.2
0.3
dB
I-Q Phase Mismatch
2
4
degrees
I-Q DC Offset
8
30
mV
Total supply current (VGA, IQ, dividers)
CDMA / PCS
AMPS
9
12
10.5
14
mA
mA
Oscillator
Frequency range
100
600
MHz
Phase Noise (fc = 200 MHz, unloaded Q = 20) @ 100 kHz
offset
–115
–117
dBc/Hz
Second harmonic distortion (application dependent)
–25
–30
dBc
Total Supply Current
6
8
mA
Buffered VCO Output
Frequency range
100
600
MHz
Output Level (peak differential)
120
150
mV
Output impedance (differential)
300
Reverse isolation
–30
–40
dB
Total supply current
3
4
mA
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