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參數(shù)資料
| 型號： | BCM3401 |
| 文件頁數(shù)： | 2/2頁 |
| 文件大?。?/td> | 34K |
| 代理商： | BCM3401 |
RF in
+Out
-Out
Overview
The
BCM3401
is the RF front-end companion chip to the
BCM3415, containing an LNA and the RF AGC. This two-chip
solution is a highly integrated silicon tuner.
The
BCM3401
and BCM3415 are specifically designed to work
with Broadcom’s industry leading BCM3350, BCM3345 and
BCM3250 single-chip cable modems, This two-chip solution
supports both 64 and 256-QAM digital cable modem applications.
Technical Brief
The Broadcom
BCM3401
is a complete RF front-end chip for use
in cable tuner applications. An RF AGC circuit provides a
broadband input match to reduce return losses over the entire
50–860 MHz frequency band.
The AGC also allows the tuner to compensate for variations in
received signal strength over a 30-dB range. The LNA provides
15 dB of gain over the band and converts the signal to differential
outputs for optimal drive to the BCM3415 and to eliminate
unwanted noise pick-up.
B C
M 3 4 0 1 O V
E
R
V
I E
W
Phone: 949-450-8700
FAX: 949-450-8710
Email: info@broadcom.com
Web: www.broadcom.com
Broadcom
, the pulse logo
and
Connecting Everything
TM
are trademarks of
Broadcom Corporation and/or its subsidiaries in the United States and certain other countries.
All other trademarks are the property of their respective owners.
BROADCOM CORPORAT ION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
2002 by BROADCOM CORPORATION. All rights reserved.
3401-PB06-R-4.21.02
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