TDA9820 datasheet(8/20 Pages) PHILIPS

8 / 20 page

1996 Nov 20

Philips Semiconductors

Product speciﬁcation

Multistandard/dual channel TV FM

intercarrier sound demodulator

TDA9820

negative slope of free-running frequency

adjustment

R11 =22kΩ−

200

−

kHz/k

Ω

∆f1

negative/positive catching range of PLLs

1.4

1.9

−

MHz

∆f2

negative/positive holding range of PLLs

2.0

3.0

−

MHz

Output ampliﬁers AF1 (pin 8) and AF2 (pin 7)

DC output voltage

1.8

2.1

2.5

Vo(rms)

output signal (RMS value)

0.4

0.5

0.6

clipping level

1.2

−−

AC peak current

−−

1.5

DC source current

−−

2.0

∆Vo/Vo

absolute drift of AF output signals

Tamb = 0 to 70 °C

−

0.7

−

∆Vo1/∆Vo2 relative drift of AF output signals

Tamb = 0 to 70 °C

−

0.2

−

∆VAF(1-2)

negative/positive difference between

output signals

µs de-emphasis

−

0.3

1.0

output resistance

−

100

150

Ω

αcs(ar)

adjustment range of channel separation

Rs = 1.1 kΩ;

Rpot = 2.2 kΩ

1.5

−−

THD

total harmonic distortion

µs de-emphasis

pin 8

−

0.1

0.3

pin 7

−

0.25

0.5

αAM

AM suppression of AF(1-2)

µs de-emphasis;

m = 0.3; fAM = 1 kHz

−

signal plus noise-to-noise ratio

µs de-emphasis;

in accordance with

“CCIR 468-3”

−

AFresp

LOW-level AF frequency response

∆VAF(1-2) = −3dB

−−

HIGH-level AF frequency response

200

−−

kHz

AMres(rms)

residual sound carrier signal and

harmonics (RMS value)

−

8/7

crosstalk attenuation between

AF outputs

f = 50 to 12500 Hz

−

supply voltage ripple rejection

VRR < 200 mV;

fr =20Hzto200 kHz

VP =5V

−

VP =8V

−

supply voltage ripple rejection with

improved application for VP =5V

fr = 20 Hz to 3 kHz;

see Fig.3 and note 2

VP = 4.5 V

−

VP = 4.75 V

−

VP = 5.0 V

−

VP = 5.5 V

−

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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