TDA9873HS datasheet(12/40 Pages) PHILIPS

12 / 40 page

2000 Apr 04

Philips Semiconductors

Product speciﬁcation

Multistandard dual carrier stereo sound decoder

TDA9873H

S/NW

weighted signal-to-noise ratio

(complete signal path)

CCIR 468-4 weighted;

quasi peak; dual mode;

note 6

µs de-emphasis;

B/G, I and D/K standard

−

µs de-emphasis;

M standard

−

S/NW(d)

signal-to-noise ratio at

external AF with stereo

decoder only

CCIR 468-4 weighted;

quasi peak;

Vo(rms) = 500 mV

−

tDEP(B/G)

de-emphasis time constant for

B/G, D/K and I standard

note 10; see Fig.4

−

−µs

tDEP(M)

de-emphasis time constant for

M standard

note 10; see Fig.4

−

−µs

fro

roll-off frequency

470 nF at AF1I and AF2I;

without de-emphasis

low frequency (

−3 dB)

−−

high frequency (

−0.5 dB) 20

−−

kHz

PSRR

power supply ripple rejection

at OUTL and OUTR (overall

performance)

fripple = 70 Hz;

Vripple(p-p) = 100 mV;

dual mode; see Fig.5

−

Ri(AF1)

AF1I input resistance

Ω

Ri(AF2)

AF2I input resistance

Ω

External additional inputs (pins 38 to 40)

Vi(nom)(rms)

nominal input signal voltage

(RMS value)

−

0.5

−

Vi(cl)(rms)

clipping voltage level

(RMS value)

THD

≤ 1.5%; VCC = 5 V

1.4

−−

AF signal voltage gain

G = Vo/Vi

−1

input resistance

Ω

fro

roll-off frequency

low frequency (

−3 dB)

−−

high frequency (

−0.5 dB)

−−

kHz

αct(ext)

AF crosstalk attenuation

(external input)

fi(EXTL) = 1 kHz;

fi(EXTR) = 400 Hz

−

Mono output OUTM (pin 43)

output resistance

200

350

Ω

load resistance

AC coupled

−−

Ω

RL(DC)

allowable DC load resistance

100

−−

Ω

load capacitance

−−

1.5

αmute

mute attenuation

−−

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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