TDA9855 datasheet(17/52 Pages) PHILIPS

17 / 52 page

1997 Nov 04

Philips Semiconductors

Product speciﬁcation

I2C-bus controlled BTSC stereo/SAP

decoder and audio processor

TDA9855

Audio part

CIRCUIT SECTION FROM PINS LIL AND LIR TO PINS OUTL, OUTR AND OUTS; note 3

roll-off frequencies

C6,C7,C10,C26,C27 and

C29 = 2.2 µF; Zi =Zi(min)

low frequency (

−3 dB)

−−

high frequency (

−0.5 dB)

−−

kHz

THD

total harmonic distortion

Vi = 1 V (RMS); Gc = 0 dB;

AVL on

−

0.2

0.5

Vi = 2 V (RMS); Gc = 0 dB;

AVL on

−

0.2

0.5

Vi = 1 V (RMS); Gc = 0 dB;

AVL off

−

0.05

−

Vi = 2 V (RMS); Gc = 0 dB;

AVL off

−

0.02

−

PSRR

power supply ripple rejection

Vr(rms) < 200 mV; fi = 100 Hz

−

crosstalk between bus inputs

and signal outputs

notes 4 and 5

−

110

−

Vno

noise output voltage

CCIR 468-2 weighted;

quasi peak

−

µV

measured in dBA

−

−µV

αcs

channel separation

Vi =1V; fi = 1 kHz

−−

Vi =1V; fi = 12.5 kHz

−−

SELECTOR (FROM PINS LOL, LOR, LIL AND LIR TO PINS SOL AND SOR)

input impedance

Ω

αs

input isolation of one selected

source to any other input

f = 1 kHz; Vi =1V

−

f = 12.5 kHz; Vi =1V

−

Vi(rms)

maximum input voltage

(RMS value)

THD

< 0.5%

2.3

−

Voffset

DC offset voltage at selector

output by selection of any

inputs

−−

output impedance

−

120

Ω

output load resistance (AC)

−−

Ω

output load capacitance

−−

2.5

voltage gain, selector

−

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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