TDA9614H datasheet(6/60 Pages) PHILIPS

6 / 60 page

1995 Mar 21

Philips Semiconductors

Preliminary speciﬁcation

Audio processor for VHS hi-ﬁ

and linear audio

TDA9614H

DCFBL

DC feedback left.

DCREFL

DC reference left.

EMPHL

Total emphasis left (240 to 20

µs).

RECTL

Rectiﬁer DC decoupling left.

DETL

Attack/recovery timing left.

Vref

Noise ﬁltering of 3.8 V reference voltage (external capacitor required for ﬁltering).

VSSA1

Analog ground 1 for LF circuits.

DETR

Attack/recovery timing right.

RECTR

Rectiﬁer DC decoupling right.

EMPHR

Total emphasis right (240 to 20

µs).

DCREFR

DC reference right.

DCFBR

DC feedback right.

RFIX

Fixed bias current generation circuit by using an external 180 k

Ω resistor to ground.

VDDA1

Analog supply voltage 1 for LF circuits (+12 V).

AFNR

Audio output from noise reduction of right channel (record and loop-through) or audio

input for noise reduction of right channel (playback).

AFMR

Audio input for audio clipper of right channel (record and loop-through) or audio

output from sample-and-hold (playback).

RCCOR

Voltage-to-current transfer for right channel oscillator by means of an external resistor

to ground.

VSSA2

Analog ground 2 for HF circuits.

RBPF

Bias current generation for the internal band-pass ﬁlters by means of an external

resistor to ground.

FMOUT

FM output.

FMIN

FM input.

VDDA2

Analog supply voltage 2 for HF circuits (+5 V).

RCCOL

Voltage-to-current transfer for left channel oscillator by means of an external resistor

to ground.

ENVOUT

Level detector output (external capacitor required for ﬁltering).

HID

Head Identiﬁcation Pulse (HID) input for sample-and-hold circuits.

CMUTE

Mute timing (external capacitor required for playback mute).

AFML

Audio input for audio clipper of left channel (record and loop-through) or audio output

from sample-and-hold circuit of left channel (playback).

AFNL

Audio output from noise reduction of left channel (record and loop-through) or audio

input for noise reduction of left channel (playback).

SYMBOL

DESCRIPTION

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