전자부품 데이터시트 검색엔진
Selected language     Korean  ▼
부품명
         상세내용
Preview PDF Download HTML-1page HTML-10pages

TDA10085HT 데이터시트(Datasheet) 3 Page - NXP Semiconductors

부품명 TDA10085HT
상세내용  Single chip DVB-S/DSS channel receiver
PDF  16 Pages
Scroll/Zoom Zoom In 100% Zoom Out
제조사  PHILIPS [NXP Semiconductors]
홈페이지  http://www.nxp.com
Logo 

 
 3 page
background image
2001 Aug 31
3
Philips Semiconductors
Product specification
Single chip DVB-S/DSS channel receiver
TDA10085HT
1
FEATURES
• DSS and DVB-S compliant single chip demodulator and
forward error correction
• Dual 6-bit Analog-to-Digital Converter (ADC) on-chip
• PLL that allows using a low-cost crystal
(typically 4 MHz)
• DiSEqC 1.X from 1 to 8 byte-long sequences with
modulated or unmodulated output
• DSS dish control
• Digital cancellation of ADC offset
• Simultaneous parallel and serial output interfaces
• Variable rate BPSK/QPSK coherent demodulator
• Modulation rate variable from 1 to 49 Mbauds
• Automatic gain control output
• Digital symbol timing recovery:
– Acquisition range up to 960 ppm
• Carrier offset cancellation up to one half of the sampling
frequency
• Digital carrier recovery:
– Acquisition range up to 12% of the symbol rate
• Half-Nyquist filters: roll-off = 0.35 for DVB and
0.2 for DSS
• Interpolating and anti-aliasing filters to handle variable
symbol rates
• Channel quality estimation
• Spectral inversion ambiguity resolution
• Viterbi decoder:
– Supported rates from 1/2 to 8/9
– Constraint length K = 7 with G1 = 1718 and
G2 = 1338
– Viterbi output BER measurement
– Automatic code rate search within 1/2, 2/3 and 6/7 in
DSS mode
– Automatic code rate search within 1/2, 2/3, 3/4, 5/6
and 7/8 in DVB-S mode
• Convolutional de-interleaver and Reed Solomon
decoder according to DVB and DSS specifications
• Automatic frame synchronization
• Selectable DVB-S descrambling
• I2C-bus interface
• 64-pin TQFP package
• CMOS technology (0.2 µm, 1.8 V to 3.3 V).
2
APPLICATIONS
• DVB-S receivers (ETS 300-421)
• DSS receivers.
3
GENERAL DESCRIPTION
The TDA10085 is a single-chip channel receiver for
satellite television reception matching both DSS and
DVB-S standards. The device contains a dual 6-bit flash
ADC, variable rate BPSK/QPSK coherent demodulator
and forward error correction functions. The ADC interfaces
directly with I and Q analog baseband signals.
After analog-to-digital conversion, the TDA10085
implements a bank of cascadable filters as well as
anti-alias and half-Nyquist filters. An analog AGC signal is
generated using an amplitude estimation function. The
TDA10085 performs clock recovery at twice the baud rate
and achieves coherent demodulation without any
feedback to the local oscillator. Forward error correction is
built around two error-correcting codes: a Reed-Solomon
(outer code) and a Viterbi decoder (inner code). The
Reed-Solomon decoder corrects up to 8 erroneous bytes
among the N (204) bytes of one data packet.
A convolutional de-interleaver is located between the
Viterbi output and the Reed-Solomon decoder input. The
de-interleaver and Reed-Solomon decoder are
automatically synchronized according to a frame
synchronization algorithm that uses the sync pattern
present in each packet. The TDA10085 is controlled via an
I2C-bus interface. The circuit operates at sampling
frequencies up to 100 MHz, can process variable
modulation rates and achieves transmission rates up to
45 Mbaud. Furthermore, for dish control applications,
hardware supports DiSEqc 1.x with control access via the
I2C-bus.
An interrupt line that can be programmed to activate on
events or on timing information is provided.
Designed in 20 micron CMOS technology and housed in a
TQFP64 package, the TDA10085 operates over the
commercial temperature range.




Html 페이지

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16 


데이터시트



관련 부품명

부품명상세내용Html View제조사
VES1820XSINGLE CHIP DVB-C CHANNEL RECEIVER 1 2 3 4 5 MoreNXP Semiconductors
VES9600SINGLE CHIP DVB-T CHANNEL RECEIVER 1 2 3 4 5 MoreNXP Semiconductors
STV0362Low-power and ultra compact DVB-T single chip receiver DVB-H broadcast compliant 1 2 3 STMicroelectronics
SN65C32213-V TO 5.5-V SINGLE CHANNEL RS-232 COMPATIBLE LINE DRIVER/RECEIVER 1 2 3 4 5 MoreTexas Instruments
L6000SINGLE CHIP READ & WRITE CHANNEL 1 2 3 4 5 MoreSTMicroelectronics
OXCF950Single full-duplex asynchronous channel 128-byte deep transmitter / receiver FIFO 1 2 3 4 5 MoreOxford Semiconductor
ADM3101E3.3 V Single Channel RS-232 Line Driver/Receiver 1 2 3 4 5 MoreAnalog Devices
M658489BFPSINGLE CHIP SURROUND PROCESSOR 1 2 3 4 5 MoreMitsubishi Electric Semiconductor
NRF403315/433 MHz Single Chip RF Transceiver 1 2 3 4 5 MoreList of Unclassifed Manufacturers
ADXRS150EB150/s Single Chip Rate Gyro Evaluation Board 1 Analog Devices

링크 URL

ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ]  

Alldatasheet는?   |   광고문의    |   운영자에게 연락하기   |   개인정보취급방침   |   즐겨찾기   |   링크교환   |   제조사별 검색
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  , Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp  |   Russian : Alldatasheetru.com
Korean : Alldatasheet.co.kr   |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com  |   Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl