參數(shù)資料
型號(hào)： TDA9875
廠商： NXP SEMICONDUCTORS
元件分類： 消費(fèi)家電
英文描述： Digital TV Sound Processor DTVSP
中文描述： SPECIALTY CONSUMER CIRCUIT, PDIP64
文件頁(yè)數(shù)： 3/92頁(yè)
文件大?。?/td> 279K
代理商： TDA9875
1998 Feb 13
3
Philips Semiconductors
Preliminary specification
Digital TV Sound Processor (DTVSP)
TDA9875
1
FEATURES
1.1
Demodulator and decoder section
Sound IF (SIF) input switch e.g. to select between
terrestrial TV SIF and SAT SIF sources
SIF AGC with 21 dB control range
SIF 8-bit Analog-to-Digital Converter (ADC)
DQPSK demodulation for different standards,
simultaneously with 1-channel FM demodulation
NICAM decoding (B/G, I and L standard)
Two-carrier multistandard FM demodulation (B/G, D/K
and M standard)
Decoding for three analog multi-channel systems (A2,
A2+ and A2*) and satellite sound
Optional AM demodulation for system L, simultaneously
with NICAM
Programmable identification (B/G, D/K and M standard)
and different identification times.
1.2
DSP section
Digital crossbar switch for all digital signal sources and
destinations
Control of volume, balance, contour, bass, treble,
pseudo stereo, spatial, bass boost and soft-mute
Plop-free volume control
Automatic Volume Level (AVL) control
Adaptive de-emphasis for satellite
Programmable beeper
Monitor selection for FM/AM DC values and signals,
with peak detection option
I
2
S-bus interface for a feature extension (e.g. Dolby
surround) with matrix, level adjust and mute.
1.3
Analog audio section
Analog crossbar switch with inputs for mono and stereo
(also applicable as SCART 3 input), SCART 1
input/output, SCART 2 input/output and line output
User defined full-level/
3 dB scaling for SCART outputs
Output selection of mono, stereo, dual A/B, dual A or
dual B
20 kHz bandwidth for SCART-to-SCART copies
Standby mode with functionality for SCART copies
Dual audio digital-to-analog converter from
DSP to analog crossbar switch, bandwidth 15 kHz
Dual audio ADC from analog inputs to DSP
Two dual audio Digital-to-Analog Converters (DACs) for
loudspeaker (Main) and headphone (Auxiliary) outputs;
also applicable for L, R, C and S in the Dolby Pro Logic
mode with feature extension.
2
GENERAL DESCRIPTION
The TDA9875 is a single-chip Digital TV Sound Processor
(DTVSP) for analog and digital multi-channel sound
systems in TV sets and satellite receivers.
2.1
Supported standards
The multistandard/multi-stereo capability of the TDA9875
is mainly of interest in Europe, but also in Hong
Kong/Peoples Republic of China and South East Asia.
This includes B/G, D/K, I, M and L standard. In other
application areas there exists only subsets of those
standard combinations otherwise only single standards
are transmitted.
M standard is transmitted in Europe by the American
Forces Network (AFN) with European channel spacing
(7 MHz VHF, 8 MHz UHF) and monaural sound.
The AM sound of L/L’ standard is normally demodulated in
the 1st sound IF. The resulting AF signal has to be entered
into the mono audio input of the TDA9875. A second
possibility is to use the internal AM demodulator stage,
however this gives limited performance.
Korea has a stereo sound system similar to Europe and is
supported by the TDA9875. Differences include deviation,
modulation contents and identification. It is based on
M standard.
An overview of the supported standards and sound
systems and their key parameters is given in Table 1.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA9875A 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital TV Sound Processor DTVSP
TDA9875AH 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital TV Sound Processor DTVSP
TDA9875AH/V2,557 功能描述:IC SOUND PROC DGTL TV 64QFP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻處理 系列:- 其它有關(guān)文件:STA321 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應(yīng)用:數(shù)字音頻 安裝類型:表面貼裝 封裝/外殼:64-LQFP 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:64-LQFP EP（10x10） 包裝:Digi-Reel® 其它名稱:497-11050-6
TDA9880 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Alignment-free multistandard vision and FM sound IF-PLL demodulator
TDA9880T 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Alignment-free multistandard vision and FM sound IF-PLL demodulator
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