July 1992 8
Philips Semiconductors Preliminary specification
Small signal combination IC for black/white TV TDA8303TDA8303A
S/N signal-to-noise ratio 10 mV input
signal 50 57 −dB
S/N signal-to-noise ratio end of gain
control range 50 62 −dB
V17 residual carrier signal −210mV
V
17 residual 2nd harmonic of carrier signal −210mV
Tuner AGC
V8-9(RMS) minimum starting point for tuner take−over
(RMS value) −−0.2 mV
V8-9(RMS) maximum starting point for tuner take−over
(RMS value) 100 150 −mV
I5maximum tuner AGC output swing V5 = 3 V 4 −−mA
V5output saturation voltage I5 = 2 mA −−300 mV
ILleakage current (pin 5) −−1µA
∆V
Iinput signal variation complete tuner control 0.2 2 4 dB
V1minimum voltage tuner take−over −−1V
AFC circuit
I19 AFC sample-and-hold switch-off current 0.1 −−mA
IOoutput current (pin 19) V19 = 0 V −0.1 0.3 mA
ILO output leakage current (pin 19) −−2µA
V
18 AFC output voltage swing notes 18 and 19 10.5 −11.5 V
I18 available output current 0.2 −−mA
control slope −100 −mV/kHz
VOoutput voltage (pin 18) AFC off 5.5 6 6.5 V
ROAFC output resistance −40 −kΩ
V18 output voltage swing notes 25 and 26 −11 −V
control slope notes 25 and 26 −80 −mV/kHz
V18 output voltage shift with respect to
VI= 10 mV(RMS) notes 25 and 26 −−2−V
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT