TDA9614H Ver la hoja de datos (PDF) - Philips Electronics
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TDA9614H Datasheet PDF : 60 Pages
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Philips Semiconductors
Audio processor for VHS hi-fi
and linear audio
Preliminary specification
TDA9614H
SYMBOL
DCFBL
DCREFL
EMPHL
RECTL
DETL
Vref
VSSA1
DETR
RECTR
EMPHR
DCREFR
DCFBR
RFIX
VDDA1
AFNR
AFMR
RCCOR
VSSA2
RBPF
FMOUT
FMIN
VDDA2
RCCOL
ENVOUT
HID
CMUTE
AFML
AFNL
PIN
DESCRIPTION
37
DC feedback left.
38
DC reference left.
39
Total emphasis left (240 to 20 µs).
40
Rectifier DC decoupling left.
41
Attack/recovery timing left.
42
Noise filtering of 3.8 V reference voltage (external capacitor required for filtering).
43
Analog ground 1 for LF circuits.
44
Attack/recovery timing right.
45
Rectifier DC decoupling right.
46
Total emphasis right (240 to 20 µs).
47
DC reference right.
48
DC feedback right.
49
Fixed bias current generation circuit by using an external 180 kΩ resistor to ground.
50
Analog supply voltage 1 for LF circuits (+12 V).
51
Audio output from noise reduction of right channel (record and loop-through) or audio
input for noise reduction of right channel (playback).
52
Audio input for audio clipper of right channel (record and loop-through) or audio
output from sample-and-hold (playback).
53
Voltage-to-current transfer for right channel oscillator by means of an external resistor
to ground.
54
Analog ground 2 for HF circuits.
55
Bias current generation for the internal band-pass filters by means of an external
resistor to ground.
56
FM output.
57
FM input.
58
Analog supply voltage 2 for HF circuits (+5 V).
59
Voltage-to-current transfer for left channel oscillator by means of an external resistor
to ground.
60
Level detector output (external capacitor required for filtering).
61
Head Identification Pulse (HID) input for sample-and-hold circuits.
62
Mute timing (external capacitor required for playback mute).
63
Audio input for audio clipper of left channel (record and loop-through) or audio output
from sample-and-hold circuit of left channel (playback).
64
Audio output from noise reduction of left channel (record and loop-through) or audio
input for noise reduction of left channel (playback).
1995 Mar 21
6
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