Philips TDA8303, TDA8303A

July 1992 9

Philips Semiconductors Preliminary speciﬁcation

Small signal combination IC for black/white TV TDA8303

TDA8303A

Sound circuit (note 12)

V15 input limiting voltage VO(max) = −3 dB −400 800 µV

R15 input resistance −2.6 −kΩ

C15 input capacitance −6−pF

AMS AM suppression note 13 53 58 −dB

V12(RMS) AF output signal (RMS value) note 14 400 600 800 mV

V12(RMS) AF output signal when pin 11 is used as a

starting pin or connected to VP

(RMS value)

∆f = 50 kHz 500 900 1500 mV

Z12 AF output impedance −25 100 Ω

THD total harmonic distortion note 15 −0.5 2 %

RR ripple rejection volume control

−20 dB;

fk= 100 Hz

−35 −dB

V12 output voltage when muted −2.5 −V

V12 output level shift due to muting volume control

−20 dB −−0.5 dB

S/N signal-to-noise ratio note 16 −47 −dB

V11 voltage with pin 11 disconnected −6−V

I11 current with pin 11 short-circuited to ground −1−mA

V12 temperature dependence of the output signal

amplitude Tamb = 20 to 65

°C;

−30 dB volume

control and

voltage of pin 11

ﬁxed;

note 17

−2.5 −dB

Volume control (note17; see Fig.8)

R11 external control resistor note 17 −4.7 −kΩ

OSS suppression of output signal during mute

condition 60 66 −dB

Horizontal synchronization circuit (see Fig.9)

SYNC SEPARATOR

V25 required sync pulse amplitude note 20 200 750 −mV

I25 input current (pin 25) V25>5 V −8−µA

25 = 0 V −10 −mA

FIRST CONTROL LOOP

±∆f PLL holding range −1500 2000 Hz

±∆f PLL catching range 600 1500 −Hz

control sensitivity to oscillator note 21 see Fig.10

V8-9 IF input signal at which the time constant is

switched (RMS value) strong-to-weak −2.2 −mV

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT