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SYMBOLPARAMETERCONDITIONSMIN.TYP.MAX.UNIT
BAF(-3dB)-3 dB AF bandwidthwithout de-emphasis;80100-kHz
dependent on FM-PLL Ţlter
S/NW(AF)weighted signal-to-noise ratio ofFM: 27 kHz FM deviation;5256-dB
audio signal50 ?s de-emphasis;
vision carrier unmodulated
AM: m = 54%4550-dB
?AM(sup)AM suppression of50 ?s de-emphasis;4046-dB
FM demodulatorAM: f = 1 kHz and m = 54%;
referenced to 27 kHz
FM deviation
PSRRAUDpower supply ripple rejection onfripple = 70 Hz; see Fig.6
pin AUD
for AM2026-dB
for FM1420-dB
Vo(intc)(rms)IF intercarrier output levelQSS mode; SC1;SC2 off90140180mV
(RMS value)
L standard;90140180mV
without modulation
intercarrier mode;---mV
SC1;SC2 off; note 7
Reference frequency
frefreference signal frequencynote 8-4-MHz
Vref(rms)reference signal voltageoperation as input terminal80-400mV
(RMS value)
Notes
1. Values of video and sound parameters can be decreased at VP = 4.5 V.
2
2. For applications without IC-bus, the time constant (R � C) at the supply must be >1.2 ?s (e.g. 1 & and 2.2 ?F).
3. Condition: luminance range (5 steps) from 0% to 100%.
4. AC load: CL < 20 pF and RL >1k&. The sound carrier frequencies (depending on the TV standard) are attenuated
by the integrated sound carrier traps (see Figs 13 to 18; ôH (s)ô is the absolute value of transfer function).
5. S/NW(video) is the ratio of the black-to-white amplitude to the black level noise voltage (RMS value measured on
pin CVBS). B = 5 MHz weighted in accordance withOCCIR567�.
6. Conditions: video signal, grey level, positive and negative modulation.
7. The intercarrier output signal at pin SIOMAD can be calculated by the following formula taking into account the
internal video signal with 1.1 V (p-p) as a reference:
ViS()C
---------------()dB + 6 dB ?3 dB
ViP()C
----------------------------------------------------------------
1201
V= 1.1 V (p-p) � ----------- � 10 (RMS), where: ----------- is the correction term for RMS value,o(intc)
2222
ViS()C
---------------()dB is the sound-to-picture carrier ratio at pins VIF1 and VIF2 in dB, 6 dB is the correction term of internal
V
iP()C
circuitry and ?3 dB is the tolerance of video output and intercarrier output Vo(intc)(rms).
8. Pin REF is able to operate as a 1-pin crystal oscillator input as well as an external reference signal input, e.g. from
the tuning system.
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ACEC
