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TDA9880 Datasheet(PDF) 21 Page - NXP Semiconductors

Part # TDA9880
Description  Alignment-free multistandard vision and FM sound IF-PLL demodulator
PDF  40 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TDA9880 Datasheet(HTML) 21 Page - NXP Semiconductors

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1999 Jul 21
21
Philips Semiconductors
Product specification
Alignment-free multistandard vision and
FM sound IF-PLL demodulator
TDA9880
Fig.4 Typical VIF and tuner AGC characteristic.
(1) VIF AGC voltage.
(2) Ituner; RTOP =22kΩ.
(3) Ituner; RTOP =12kΩ.
(4) Ituner; RTOP =0 Ω.
handbook, halfpage
30
50
110
3
2
1
4
0
300
600
200
500
100
400
MHB158
70
90
Vi(VIF) (dB/µV)
V20
(V)
I14
(
µA)
(2)
(3)
(4)
(1)
Fig.5
Typical tuner takeover point as a function of
RTOP.
handbook, halfpage
024
120
60
70
100
90
80
MHB159
12
820
416
Vi(VIF)
(dB/
µV)
RTOP (kΩ)
Fig.6
Typical signal-to-noise ratio as a function of
VIF input voltage.
handbook, halfpage
0
30
50
110
70
30
60
20
50
10
40
MHB160
70
90
Vi(VIF) (dB/µV)
S/N
(dB)
Fig.7 Input signal conditions.
SC = sound carrier, with respect to sync level.
CC = chrominance carrier, with respect to sync level.
PC = picture carrier, with respect to sync level.
The sound carrier levels are taking into account a sound shelf
attenuation of 20 dB (SAW filter M1963M).
handbook, halfpage
SC CC
PC
SC CC
PC
BLUE
YELLOW
21 dB
13.2 dB
3.2 dB
21 dB
13.2 dB
10 dB
MHA739



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