TDA9614H datasheet(16/60 Pages) PHILIPS

16 / 60 page

1995 Mar 21

Philips Semiconductors

Preliminary speciﬁcation

Audio processor for VHS hi-ﬁ

and linear audio

TDA9614H

Table 11 Bits RN and IPN

Notes

1. Bit RN is output at LINREC (pin 32), which is used to drive an external (high voltage) head switch and possibly the

bias oscillator. The two loop-through modes are equal in signal flow, however they differ in the state of the head

switches (the internal switch at PBIN [pin 34] and the external head switch driven by pin LINREC).

2. Loop-through R is equal to record except for the RECOUT output (pin 33) which is muted.

Table 12 Bit NOM

Note

1. Audio coming from the linear audio circuit is muted, either the signal from tape in playback or the loop-through signal

in record or loop-through modes. To avoid clicks when changing the mode of the linear audio circuit to or from

playback, the output should be muted shortly, using this bit.

Table 13 Bit LP

RN(1)

IPN

MODE

DESCRIPTION

playback

linear audio circuit in playback mode

loop-through P

linear audio circuit in loop-through mode (playback ready) [por]

loop-through R(2)

linear audio circuit in loop-through mode (record ready)

record

linear audio circuit in record mode

NOM

MODE

DESCRIPTION

−

mute(1)

output from linear audio circuit is muted [por]

MODE

DESCRIPTION

Record and playback equalizing set for Standard Play [por].

Record equalization switch at EQSW (pin 30) and playback equalization switch at RESSW

(pin 35) are open (high impedance). The internal playback equalizing is 3180 and 120

µs.

It can be changed to 2544 and 96

µs by selecting test number 31 (see Section 6.12).

Record and playback equalizing set for Long Play.

Record equalization switch at EQSW (pin 30) and playback equalization switch at RESSW

(pin 35) are closed. The internal playback equalizing is 3180 and 170

µs. It can be

changed to 2731 and 146

µs by selecting test number 31 (see Section 6.12).

TDA9614H Datasheet(PDF) 16 Page - NXP Semiconductors

TDA9614H Datasheet(HTML) 16 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

Datasheet Download

Link URL