tda9880t NXP Semiconductors, tda9880t Datasheet - Page 23

• Manufacturer Part Number: tda9880t
• Description: Alignment-free Multistandard Vision And Fm Sound If-pll Demodulator
• Manufacturer: NXP Semiconductors

Philips Semiconductors
2000 Nov 22
handbook, full pagewidth
handbook, full pagewidth
Alignment-free multistandard vision and
FM sound IF-PLL demodulator
Conditions: 25 kHz FM deviation; 75 s de-emphasis.
(1) Signal.
(2) Noise at H-picture.
(3) Noise at black picture.
audio
(dB)
S/N
10
10
20
30
40
50
60
70
0
49
46
43
Fig.9 Typical video signal levels on output pin 13 (sound carrier off).
2.72 V
1.83 V
2.6 V
1.5 V
Fig.0 Audio S/N as a function of picture-to-sound carrier ratio.
40
3.57 V
3.35 V
1.95 V
1.35 V
37
34
trap bypass mode
normal mode
31
gain controlled operation of FM-PLL
28
23
25
22
19
PC/SC ratio at pins 1 and 2 (dB)
zero carrier level
white level
black level
sync level
16
MHB163
13
10
Product specification
(1)
(2)
(3)
TDA9880T
7
MHB164
4