鈥?/div>
in-band receiver
10-bit A/D converter with input AGC amplifier
Variable symbol rate 256-QAM receiver
Digital demodulator, Nyquist filters, tracking loops,
and 32-tap adaptive decision feedback equalizer
ITU-T J.83 Annex A/B/C compatible FEC decoder
廬
鈥?/div>
Universal set-top and cable modem front-end
supports the ITU-T J.83 Annex A/B/C standards, as
well as OpenCable鈩? DOCSIS/EuroDOCSIS, and
DVB/DAVIC
supporting physical layer requirements including
out-of-band
downstream channels (in-band and out-of-band) and
the upstream channel
and upstream blocks reduces board complexity and
system costs
count
鈥?/div>
Connects directly to Broadcom digital TV ICs
鈥?/div>
Represents a complete solution for dual
鈥?/div>
Integrated QPSK out-of-band receiver
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Baseband interface to dual 6-bit A/D converters or IF
interface to signal A/D converter
Variable symbol rate QPSK receiver
Digital demodulator, Nyquist filters, tracking loops,
and 4-tap adaptive decision feedback equalizer
DigiCipher
廬
II/DVB/DAVIC FEC decoder
MPEG transport output interface/DAVIC MAC
output interface
鈥?/div>
Integrated analog front end for the dual downstream
鈥?/div>
Serial control interface results in reduced overall pin
鈥?/div>
Out-of-band QPSK receiver provides flexibility for
IF or baseband inputs
VCXOs
鈥?/div>
Integrated upstream transmitter
鈥?/div>
Programmable Starvue
II/DOCSIS鈩?EuroDOCSIS鈩?DVB/ DAVIC FEC
encoder
鈥?/div>
Pre-equalization filter
鈥?/div>
Up to 6 MBaud variable rate QPSK/16-QAM modulator
鈥?/div>
10-bit D/A converter with output power control
interfaces
鈥?/div>
Single, low-cost crystal solution eliminates costly
鈥?/div>
Includes direct interface to the OpenCable point-of-
deployment (POD) module
channels
鈥?/div>
Control unit
鈥?/div>
鈥?/div>
Single device supports both 6-MHz and 8-MHz
鈥?/div>
Allows direct connection to Broadcom ICs to support
additional data and video channels for
DOCSIS/EuroDOCSIS/DAVIC systems and PVR set-
top boxes
鈥?/div>
BSC/SPI compatible interface for configuration and
device control
鈥?/div>
RF tuner control
160-pin PQFP package
Set-Top Box Block Diagram
In-Band Channel
BCM3125
QAMLink
廬
Universal
Transmission
Solution
Audio
BCM7020/BCM7030
High Definition Video /
Graphics Subsystem
Video
Tuner
Out-of-Band Channel
Upstream Channel
CPU
I/O
Memory
BCM3125相關(guān)型號PDF文件下載
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型號
版本
描述
廠商
下載
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Communication Miscellaneous
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