Zoran CAS-220/S Dtv demodulator ic Datasheet

Driving the Digital Lifestyle
Cascade2 ™
DVD
DTV Demodulator IC
Digital Camera
Zoran Corporation
1390 Kifer Road
Sunnyvale, CA 94086-5305
Product Brief
Digital TV
Imaging
IP Core
Te l 408.523.6500
Fax 408.523.6501
www.zoran.com
Description
The Cascade2 is a multistandard demodulator and decoder for
terrestrial and cable TV reception. It is designed to support 8/16-VSB
in compliance with the ATSC Digital Television Standard as well as
OpenCable ITU-T J.83B in compliant 256/64 QAM and OOB QPSK
modes for Digital Cable Ready downstream reception.
The small, high-performance Cascade2 is well suited for any system
designed to receive off-air and cable digital TV transmissions. This
includes stand-alone SDTV or HDTV sets, Set-Top Boxes, PC-TV
cards and data reception appliances.
The Cascade2 family ICs are produced in several combinations of
reception standards:
The Cascade2 is designed to reduce system costs by integrating the
FAT channel demodulation of VSB, J.83 Annex B QAM and Audio
decoding (for analog channels) and the FDC QPSK channel
demodulation.
Cascade2 P/N
Decscription
ATSC
CAS-220
VSB
CAS-220/C
VSB, QAM
CAS-220/S
VSB, BTSC
CAS-220/CS
VSB, QAM, BTSC
CAS-220/CO
VSB, QAM, OOB
CAS-220/CSO
VSB, QAM, BTSC,OOB
QAM
Annex B
•
•
•
•
•
•
OOB
FDC
•
•
•
•
•
•
US
Audio
BTSC
Korea
Audio
A2FM
FM
Radio
Smart
Antenna
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
System Block Diagram
IF Input
Programmable Digital Filters
and other
DSP Blocks
10-bit
ADC
Mux
SIF Input
Parallel MPEG2 TS Out
MPEG2 Mux and
Serializer
AGC
FAT AGC
FEC
Serial MPEG2 Transport
Parallel MPEG2 TS In
CLK0
Main
PLL
Osc
Sound
Decoder
DSP
General Purpose I/O Pins
Internal
Clocks
FDC LO
Firmware
RAM
LO
FDC AGC
AGC
FDC IF In
ADC
Tuner IIC
IIS Output
FDC QPSK
Demodulator
FDC data Out
Switch
Host IIC
Cascade2 front end system solution with OOB
Cascade2 front end system solution without OOB
25MHz
Antenna
BTSC 4.5 MHz
IF
Tuner
44MHz
SAW filter
and IF AGC
54-860MHz
LNA
Spliter
ADC
BPF
CVBS
FAT - Forward App Transport
Cascade2
Data
IF AGC PWM
MPEG 2TS
LPF
Cable
In/Out
Tuner
VSB
SAW
IF
44MHz
FAT IF
Input
Cascade2
Tuner I2C
NTSC
demod
2nd IF Sound (4.5 MHz)
ADC
Tuner I2C
Audio
I2S
Host I2C
SIF (Option)
BPF
70-130
MHz
Mixer
FDC IF Input
BPF
OOB tuner
Local
Oscillator
25MHz
FM IF (Option)
CVBS
11/05 IN
CAS-220
Driving the Digital Lifestyle
Cascade2 ™
DTV Demodulator IC
Product Brief
Key Features
Modulation Flexibility
- ATSC 8-VSB demodulation
- OpenCable, ANSI/SCTE DVS-031, ITU-T J.83 Annex B and
DOCSIS compliant 64/256 QAM demodulation
- OOB downstream demodulation, complies with SCTE DVS-178
and DVS-167 specifications
- Audio stereo decoding: US BTSC audio mono, stereo and SAP
decoding (DBX), Korea A2 FM mono, stereo and bilingual,
with IIS output
- Autonomous operation - Internal DSP firmware execution eliminates
the need for supervision and operation by the system host
Excellent VSB Performance
- Superior 8-VSB multi-path performance with equalizer coverage
of –34us to +78us.
- Superior VSB indoor reception using enhanced equalization and
synchronization algorithms, based on training signal and data-aided
equalization, enables Brazil and other 0dB ghosts reception
- Adaptive control loops according to channel conditions for fast
channel acquisition and optimal tracking
- Excellent doppler ghosts rejection
- Fast channel auto search by carrier lock of +/-400KHz and NTSC
channel detection
Excellent QAM Performance
- ANSI/SCTE DVS-031, ITU-T J.83 Annex B 64/256QAM,
5.059641/5.360537MHz symbol rate.
- Integrated 32Kbytes deinterleaver RAM for DI modes
up to I=128 J=4.
- 84 taps equalization range: 36 FFE and 48 DFE for superior
cable micro-reflection rejection
- Superior phase noise rejection
- Superior burst noise and combined distortion rejection
- Superior AM noise rejection
- Fast channel auto search based on auto 64/256QAM detection and
wide carrier acquisition range of +/-500KHz
FDC Demodulator (OOB)
- OpenCable SCTE DVS-178 & 167 QPSK demodulation
- 8 taps adaptive equalizer
- On-chip frequency synthesizer provides LO for FDC
down-conversion
- Direct Cable Card interface compliant with SCTE 28 2001
(DVS-295)
Sound stereo decoder
- US BTSC mono, stereo and SAP (DBX) decoding
- Korea A2 FM mono, stereo and bilingual decoding
- FM radio stereo decoding
- IIS server/client with output clock of 48KHz, 44.1KHz, and 32KHz
Advanced System Functions
- Accepts 44MHz or low-IF from the tuner eliminating external
base-band demodulation
- Separate RF and IF AGC PWM outputs
- Parallel and serial MPEG2 transport outputs
- All digital recovery loops
- Firmware loading IIC serial bus from host upon initialization
- Integrated IIC switch for isolation of the tuner IIC port during
normal reception modes
- Via IIC, the Cascade2 reports FEC statistics, receiver status,
and channel data such as S/N ratio, equalizer taps, carrier offset,
and more
- EIA/CEA-909 Mode A Smart Antenna Interface
- Internal mux for serial output of decrypted TS from POD
Standard 14x14 mm 100pin LQFP package
For more information, contact Zoran's Sunnyvale office or the office nearest you:
Shanghai, China
Shenzhen, China
Hong Kong
Israel
Japan
Korea
Taiwan
Zoran China Office
Zoran China Office
Zoran Asia Pacific Ltd.
Zoran Microelectronics Ltd.
Zoran Japan Office
Zoran Korea Office
Zoran Taiwan Office
Tel: 86-21-6469-9799
Tel: 86-755-8281-5777
Tel: +852-2620-5838
Te l : +972-4-8545-777
Te l : +81-3-5475-1051
Tel: +82-2-761-7471
Te l : +886-2-2659-9797
Fax: 86-21-6427-0545
Fax: 86-755-8322-0889
Fax: +852-2620-5238
Fax: +972-4-8551-550
Fax: +81-3-5475-1053
Fax: +82-2-761-7472
Fax: +886-2-2659-9595
© Copyright 2005 Zoran Corporation. All rights reserved. Zoran, the Zoran logo, and Cascade are trademarks of Zoran Corporation. All other brand product names and company names are trademarks of their respective
owners. The information in this document is believed to be reliable. However, Zoran Corporation makes no guarantee or warranty concerning the accuracy of said information and shall not be responsible for any loss or
damage of whatever nature resulting from the use of, or reliance upon it. Zoran Corporation does not guarantee that the use of any information contained herein will not infringe upon patent, trademark, copyright, or rights
of third parties. Zoran Corporation reserves the right to make changes in the product and/or specifications, or both, presented in this publication at any time without notice.
11/05 IN
CAS-220
Similar pages