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参数资料
| 型号： | W3041BCL |
| 元件分类： | 通信及网络 |
| 英文描述： | SPECIALTY TELECOM CIRCUIT, PDSO20 |
| 封装： | TSSOP-20 |
| 文件页数： | 12/12页 |
| 文件大小： | 822K |
| 代理商： | W3041BCL |
Preliminary Data Sheet
W3041
December 1998
IF Receiver with Integrated IF2 Bandpass Filters
Lucent Technologies Inc.
9
Characteristic Curves
Conditions unless otherwise noted: VCC
= 2.7; IF1 = 130.45 MHz; IFLO = 130.0 MHz @ 150 mVp-p; IF2 = 400
kHz or 450 kHz; CLK = 14.40 MHz; TA = 25
°C; mixer input terminated with 50 resistor.
2
0
–2
–4
–6
–8
430
435
440
445
450
455
460
465
470
FREQUENCY, kHz
MAGNITUDE,
dB
Figure 6. 450 kHz IF2 Filter Channel Passband
Magnitude
80
60
40
20
0
–20
420
430
440
450
460
470
480
FREQUENCY, kHz
GROUP
DELAY,
s
Figure 7. IF2 Bandpass Filter Group Delay
Variation
WANTED
CHANNEL
+100 kHz
INTERFERER
–65.7 dBc
+50 kHz
INTERFERER
–59.1 dBc
+25 kHz
INTERFERER
–16.7 dBc
10 dBm
LogMag
10 dBm/div
–90 dBm
8 dBm
LogMag
–92 dBm
10 dB/div
SPAN: 400 kHz
CENTER: 400 kHz
FILTER INPUT LEVEL: 100 mVp-p
MEASUREMENT BANDWIDTH: 25 kHz
Figure 8. 450 kHz IF2 Filter Rejection
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