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參數(shù)資料
| 型號： | MT35 |
| 廠商： | Zarlink Semiconductor Inc. |
| 英文描述： | COFDM Demodulator |
| 中文描述： | COFDM解調器 |
| 文件頁數(shù)： | 1/24頁 |
| 文件大?。?/td> | 478K |
| 代理商： | MT35 |
1
Zarlink Semiconductor Inc.
Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.
Copyright 2003-2005, Zarlink Semiconductor Inc. All Rights Reserved.
Features
Nordig II and ETSI 300 744 compliant
Superior Single Frequency Network performance
Unique active Impulse-Noise filtering
Single SAW operation
Automatic co-channel and adjacent-channel
interference suppression
Clock generation from single low-cost 20.48 MHz
crystal or external 4 or 27 MHz clock
IF sampling at 4.57, 36.17 or 43.5 MHz from a
single crystal frequency
Channel bandwidth of 6, 7 & 8 MHz
Blind acquisition capability (including 2 K / 8 K
mode detect)
Automatic spectral inversion detection
Fast auto-scan and acquisition technology
Very low software overhead
Dual AGC control option
Access to channel SNR, pre- and post-Viterbi bit
error rates
Compact 64 pin LQFP
Less than 0.22 W power consumption
Standby and sleep options
Applications
Set-top boxes
Integrated digital televisions
Personal video recorders
Terrestrial PC reception
Mobile and portable applications
Zarlink evaluation kits include application board, TNIM
and supporting software based on industry standard
operating systems. Device drivers are also available
enabling rapid product development and reduction in
time to market.
Description
MT352 is a superior third generation Coded
Orthogonal Frequency Division Multiplex (COFDM)
television demodulator that is both Nordig II and DVB
(as defined in ETS 300 744 specification) compliant. It
can be used in either 2 K or 8 K modes with 6, 7 or
8 MHz channels and is capable of addressing all
modes of transmission.
The device includes a high performance 10-bit A/D
converter capable of accepting direct IF at 36.17 or
43.75 MHz. Sampling rates required for both these
frequencies in 6,7 or 8 MHz OFDM channels can be
generated
from
a
single
Alternatively, there is provision to replace this crystal
with a 4 or 27 MHz external clock input.
20.48 MHz
crystal.
February 2005
Ordering Information
64 Pin LQFP
64 Pin LQFP
64 Pin LQFP* Tape & Reel
MT352/CG/GP2N
64 Pin LQFP* Trays
* Pb Free Matte Tin
0
o
C to +70
o
C
MT352/CG/GP1N
MT352/CG/GP1Q
MT352/CG/GP2Q
Trays
Tape & Reel
MT352
COFDM Demodulator
Data Sheet
Figure 1 - Block Diagram
RF in
ADC
AGC
Secondary
2-wire bus
Tuner control
Impulse
Suppression
IF to
Baseband
conversion &
Interpolator
FFT
Symbol,
Carrier &
Timing
Recovery
Pilot &
Channel
Processor
Control
engine
Symbol & Bit
De-interleaver
& Demapper
FEC
MPEG
TS
Primary
2-wire bus
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