2000 Dec 11

8

Philips Semiconductors

Product specification

decoder and audio processor

TDA9853H

Audio processor

The selector enables the selection of either the internal line

output signals LOR and LOL (dematrix output) or the

external line input signals LIR and LIL (see Table 16). The

input signal capability of the line inputs (LIR/LIL) is

2 V (RMS). The output of the selector is DC-coupled to the

automatic volume level control circuit.

The volume control range is from +12 dB to

−63 dB in

steps of 1 dB and ends with a mute step (see Table 8).

Balance control is achieved by the independent volume

control of each channel.

A single external 56 nF capacitor for each channel in

combination with a linear operational amplifier and internal

resistors provides a bass range of +12 dB for high bass

and +5 dB for low bass.

Two external capacitors C15 = 3.3 nF and C14 = 150 pF

for each channel in combination with a linear operational

amplifier and internal resistors provide a treble range of

+8 dB for high treble and

−1.5 dB for low treble.

The mute function can be activated independently with the

last step of volume control at the left or right output. By

setting the general mute bit GMU the audio outputs OUTL

and OUTR are muted.

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 60134).

Notes

1. Machine model class B, equivalent to discharging a 200 pF capacitor through a 0

Ω series resistor (‘0 Ω’ is actually

0.75

µH+10 Ω).

2. Human body model class B, equivalent to discharging a 100 pF capacitor through a 1500

Ω series resistor.

THERMAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN.

MAX.

UNIT

supply voltage

−

9.5

V

voltage at pins SDA and SCL referenced

to GND

−0.3

V

−0.3

+9

V

voltage of all other pins to GND

0

V

ambient temperature

−20

+70

°C

storage temperature

−65

+150

°C

electrostatic handling voltage

note 1

−200

+200

V

note 2

−2000 +2000 V

SYMBOL

PARAMETER

CONDITIONS

VALUE

UNIT

thermal resistance from junction to ambient

in free air

70

K/W