Daewoo DDT-21H9ZDF(21"), Руководство по обслуживанию

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Service Manual CP-099/FS
4-3. TDA 9859 Universal hi-fi audio processor for TV-(14”)
4-3-1- FEATURES
- Multi-source selector switches six AF inputs (three stereo sources or six mono sources)
- Each of the input signals can be switched to each of the outputs (crossbar switch)
- Outputs for loudspeaker xhannel and peri-TV connector (SCART)
- Switchable spatial stereo and pseudo stereo effects
- Audio surround decoder can be added externally
- Two general purpose logic output ports
- I
2
C-bus control of all functions.
4-3-2- GENERAL DESCRIPTION
The TDA9859 provides control facilities for the main and the SCART channel of a TV set. Due to extended
switching possibilities, signals from three stereo sources can be handled.
4-3-3 QUICK REFERENCE DATA
SYMBOR PARAMETER MIN. TYP. MAX. UNIT
V
p
positive supply voltage(pin 6) 7.2 8.0 8.8 V
I
p
supply current - 25 - mA
V
i(rms)
input signal levels for 0 dB gain(RMS value) 2 - - V
V
O(rms)
output signal levels for 0 dB gain(RMS value) 2 - - V
G
V
voltage gain in main channel
volume control(1 dB steps, blance included) -63 - +15 dB
mute -80 - - dB
bass control(1.5 dB steps) -12 - +15 dB
treble control(3 dB steps) -12 - +12 dB
THD total harmonic distortion - 0.1 - %
S/N signal-to-noise ratio - 85 - dB
T
amb
operating ambient temperature 0 - 70
o
C