ETC DPS7000

DPS7000 Hi-IQ TM Cable
Modem VLSI RF Tuner IC
OVERVIEW
FEATURES
The DPS7000 is a highly integrated, high-performance, very low-power RF
Receiver/Tuner IC capable of receiving input signals between 48 MHz-1 GHz
over a wide dynamic range and providing IF out to baseband PHY demodulators.
• VLSI RF Cable Tuner IC
This VLSI product integrates all the essential elements of the down conversion
receiver: LNA, AGCs, Mixers, PLLs, IF Amplifier and varacters, thereby requiring
minimal external components and no manual tuning. Only one external SAW filter
is required.
• 7 dB Noise Figure
• Single 3.3 V supply operation
• Very low operating power:
600 mW
• 0-70°C operation
The unique and proprietary architecture eliminates the need for tracking filters. The
LNA provides a low Noise Figure and better than 6 dB return loss across the entire
input frequency range. The integrated PLLs and VCOs provide fast lock and
superior phase noise characteristics (better than 80 dBc/Hz at 10 KHz offset).
The DPS7000 supports both DOCSIS and DAVIC standards and provides
selectable 36/44 MHz IF out for the selected 6 or 8 MHz channels.
• Fast channel select and lock
• Very small form factor solution:
64 QFP
• Integrates:
- LNA
- Gain control (RF and IF)
- Wide dynamic range
- Programmable dual synthesizers
- Mixers
- On-chip oscillator tuning elements
- Serial port control
• Minimal external components:
- No manual tuning
- No varactor
- No other power supplies
- Only one external SAW filter
- No IF amplifier required
VLSI Solution: Truly Minimal External Components
The
Communication
Company
TM
DPS7000 Hi-IQ TM Cable Modem VLSI RF Tuner IC
For more information please call:
APPLICATIONS
LSI Logic Corporation
• DOCSIS/DAVIC Cable Modems
North American Headquarters
• Voice Over IP Telephony
Milpitas, CA
• MMDS Receivers
Tel: 800 574 4286
• Cable TV, STB and DTV - call LSI Logic
LSI Logic Europe Ltd.
European Headquarters
United Kingdom
SAW
IFFILP
IFFILN IFFNN
Tel: 44 1344 426544
Fax: 44 1344 481039
IFINP
DPS7000 VLSI RF Tuner
RFINP
RFINN
48 MHz~1000 MHz
LNA
+
AGC
LSI Logic KK Headquarters
IF
GCA
Down-Conversion Block
RFAGC
SDATA
SEN
SCLK
Serial
Control
Port
L01
Tokyo, Japan
Tel: 81 3 5463 7165
Fax: 81 3 5463 7820
LSI Logic web site:
www.lsilogic.com
L02
L02 PLL
L01 PLL
CP1 CN1
IFOUTP
IFOUTN
36 MHz~44 MHz
IFGCA
XTAL/FREF
32 MHz
CP2 CN2
Functional Block Diagram
LSI Logic logo design, is a registered trademark of
LSI Logic Corporation. Hi-IQ is a trademark of LSI
Logic. All other brand and product names may be
trademarks of their respective companies.
LSI Logic Corporation reserves the right to make
changes to any products and services herein at
any time without notice. LSI Logic does not assume
any responsibility or liability arising out of the
application or use of any product or service
described herein, except as expressly agreed to in
writing by LSI Logic; nor does the purchase, lease,
or use of a product or service from LSI Logic convey a license under any patent rights, copyrights,
trademark rights, or any other of the intellectual
property rights of LSI Logic or of third parties.
Copyright ©2001 by LSI Logic Corporation.
All rights reserved.
Order No. R20033
701.1k.JG.IK - Printed in USA
The
Communications
Company
TM