TDA9880 Просмотр технического описания (PDF) - Philips Electronics
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TDA9880 Datasheet PDF : 40 Pages
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Philips Semiconductors
Alignment-free multistandard vision and
FM sound IF-PLL demodulator
Product specification
TDA9880
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN.
VP
supply voltage
IP
supply current
Vi(sens)(VIF)(rms) VIF input voltage sensitivity
(RMS value)
note 1
4.5
85
−1 dB video at output
−
GVIF(cr)
VIF gain control range
see Fig.4
65
fVIF
VIF frequencies
see Table 2
−
−
−
−
∆fVIF
VIF frequency window of digital
referenced to fVIF
−
acquisition help
Vo(v)(p-p)
video output signal voltage
(peak-to-peak value)
Gdif
ϕdif
Bv(−3dB)(trap)
differential gain
differential phase
−3 dB video bandwidth including
sound carrier trap
sound carrier off; see Fig.10 1.7
trap bypass mode;
0.95
see Fig.10
“NTC-7 Composite”
−
“NTC-7 Composite”
−
CL < 20 pF; RL > 1 kΩ;
AC load; note 2
ftrap = 4.5 MHz
(M/N standard)
3.95
ftrap = 5.5 MHz
(B/G standard)
4.90
αSC1
trap attenuation at first sound carrier M/N standard
30
B/G standard
30
S/NW
weighted signal-to-noise ratio of
see Fig.6; note 3
56
video signal
PSRR13
power supply ripple rejection at
pin 13
fripple = 70 Hz; video signal; 25
grey level; see Fig.9
Bv(−1dB)
−1 dB video bandwidth
CL < 20 pF; RL > 1 kΩ;
5
AC load; trap bypass mode
Ich(max)(20)
AGC maximum charge current at
6
pin 20
Idch(max)(20)
AGC maximum discharge current at
7.5
pin 20
Isink(14)
AFCstps
Io(source)(19)
Io(sink)(19)
Vo(intc)(rms)
sink current of tuner AGC at pin 14
AFC steepness ∆I19/∆f
AFC output source current at pin 19
AFC output sink current at pin 19
intercarrier output voltage
(RMS value)
maximum tuner gain
reduction; V14 = 1 V;
see Fig.4
VV-----ii-((-SP---CC---)) = –24 dB ; note 4
450
0.85
160
160
−
TYP.
5
100
50
69
38.0
38.9
45.75
58.75
±2.38
2.0
1.10
2
2
4.05
5.00
36
36
60
28
6
8
10
600
1.05
200
200
49
MAX.
5.5
115
100
−
−
−
−
−
−
2.3
1.25
5
4
−
−
−
−
−
−
−
10
12.5
750
1.25
240
240
−
UNIT
V
mA
µV
dB
MHz
MHz
MHz
MHz
MHz
V
V
%
deg
MHz
MHz
dB
dB
dB
dB
MHz
µA
µA
µA
µA/kHz
µA
µA
mV
1999 Jul 21
3
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