TDA8303 datasheet(8/21 Pages) PHILIPS

8 / 21 page

July 1992

Philips Semiconductors

Preliminary speciﬁcation

Small signal combination IC for black/white TV

TDA8303

TDA8303A

S/N

signal-to-noise ratio

10 mV input

signal

−

S/N

signal-to-noise ratio

end of gain

control range

−

V17

residual carrier signal

−

210

V17

residual 2nd harmonic of carrier signal

−

210

Tuner AGC

V8-9(RMS)

minimum starting point for tuner take

−over

(RMS value)

−−

0.2

V8-9(RMS)

maximum starting point for tuner take

−over

(RMS value)

100

150

−

maximum tuner AGC output swing

V5 = 3 V

−−

output saturation voltage

I5 = 2 mA

−−

300

leakage current (pin 5)

−−

µA

∆VI

input signal variation complete tuner control

0.2

minimum voltage tuner take

−over

−−

AFC circuit

I19

AFC sample-and-hold switch-off current

0.1

−−

output current (pin 19)

V19 = 0 V

−

0.1

0.3

ILO

output leakage current (pin 19)

−−

µA

V18

AFC output voltage swing

notes 18 and 19

10.5

−

11.5

I18

available output current

0.2

−−

control slope

−

100

−

mV/kHz

output voltage (pin 18)

AFC off

5.5

6.5

AFC output resistance

−

Ω

V18

output voltage swing

notes 25 and 26

−

control slope

notes 25 and 26

−

mV/kHz

V18

output voltage shift with respect to

VI = 10 mV(RMS)

notes 25 and 26

−−2

−

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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