TDA9873HS datasheet(14/40 Pages) PHILIPS

14 / 40 page

2000 Apr 04

Philips Semiconductors

Product speciﬁcation

Multistandard dual carrier stereo sound decoder

TDA9873H

Notes

1. Input level for IF intercarrier from an external generator with 50

Ω source impedance, fmod = 400 Hz, 27 kHz

deviation of audio references: level for SC1 is 50 mV (RMS), SC1/SC2 = 7 dB. S/N and THD measurements are

taken at 50

µs de-emphasis.

2. For higher input voltages a series resistor connected to pin 25 is recommended.

3. The tolerance of the reference frequency determines the accuracy of the FM demodulator centre frequencies,

maximum FM deviation, pilot window width and pilot window mid-frequency error.

Rs(eq)

equivalent crystal series

resistance

−

200

Ω

Rs(um)

crystal series resistance of

unwanted mode

× Rs(eq) −−

Ω

Reference input (operation as input terminal; pin 15)

fω

working frequency

−

MHz

DC input voltage

2.3

2.6

2.9

input resistance

2.5

3.0

3.5

Ω

∆fref

tolerance of reference

frequency

notes 3 and 14

−−

±300 × 10−6

Vref(rms)

amplitude of reference source

(RMS value)

operation as input terminal

−

400

Vo(ref)

output resistance of reference

source

−−

4.7

Ω

decoupling capacitance to

external reference source

operation as input terminal

100

−

I2C-bus transceiver (pins 29 and 30); note 15

fclk

clock frequency

−

100

kHz

VIH

HIGH-level input voltage

−

VCC

VIL

LOW-level input voltage

−0.3

−

+1.5

IIH

HIGH-level input current

−10

−

+10

µA

IIL

LOW-level input current

−10

−

+10

µA

VOL

LOW-level output voltage

IOL =3mA

−−

0.4

Io(sink)

output sink current

VCC =0V

−−

µA

Io(source)

output source current

VCC =0V

−−

µA

Port outputs P1 and P2 (open-collector outputs; pins 37 and 42)

VOL

LOW-level output voltage

Io = 1 mA (sink)

−−

0.3

Io(sink)(port)

port output sink current

port at LOW level

−−

1mA

Power-on reset

VCC(sr)

supply voltage for start of

reset

decreasing supply voltage

2.5

3.5

VCC(er)

supply voltage for end of reset increasing supply voltage;

I2C-bus transmission

enabled

−−

4.5

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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