? (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.
GENERAL DESCRIPTION
The TDA9875A is a single-chip Digital TV Sound Processor (DTVSP) for analog and
digital multi-channel sound systems in TV sets and satellite receivers.
Supported standards
The multistandard/multi-stereo capability of the TDA9875A 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
st
is normally demodulated in the 1 sound IF. The resulting AF signal has to be entered into the
mono audio input of the TDA9875A. 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 TDA9875A. Differences include deviation, modulation contents and
identification. It is based on M standard.
FUNCTIONAL DESCRIPTION
Description of the demodulator and decoder section
SIF INPUT
E.G.Data creazione 01/11/99 17.27 24 / 30 F19MANU.doc |
ACEC
OTHERS
