tda4455 ATMEL Corporation, tda4455 Datasheet - Page 8

• Manufacturer Part Number: tda4455
• Description: Multistandard Amplifier Demodulator
• Manufacturer: ATMEL Corporation

IF-AGC, Switching Thresholds
TDA4455
8 (12)
93 7645
93 7646
93 7647
Sound
+Sync.
Dig.:
Chrominance
Diff.: Signal
Analog:
Preliminary Information
Figure 14. D2MAC-standard (neg. modulated)
Figure 12. B/G-standard (neg. modulated)
Figure 13. L-standard (pos. modulated)
Luminance Signal
Analog:
4.0 V Peak level: 100 % carrier
[
2.0 V Sync. peak level :
1.9 V Ultra black level: zero carrier
2.0 V Sync. peak level: 100% carrier
(charge / discharge threshold)
2.4 V Average discharge threshold
4.2 V Ultra white level: zero carrier
4.0 V White level: 10 % carrier
2.0 V Black level: 100 % carrier
[
4.2 V
4.0 V
TELEFUNKEN Semiconductors
4.1 V Average discharge threshold
(charge threshold)
DC value: zero carrier
(charge threshold)
White level: 10 % carrier
Rev. A1: 08.05.1995
v
6 % carrier