TDA8214B Datasheet, PDF (8/9 Pages) STMicroelectronics – HORIZONTAL AND VERTICAL DEFLECTION CIRCUIT

TDA8214B
Figure 8 : Video Identification Circuit (Pin 8)
V_H
2.75V
13
Line retrace
5.8kΩ
V_R
2.5V
12µs
V_L
2.25V
V _CC1
V_CC1
Line
Flyback
Integrated
V_H
Flyback
V_L
10kΩ
Video
Ident.
Output
1N4148
1kΩ
BC547
8
10µF
Sampling Pulse
V_R1
V _R1
Line Sync.
Line
Sync.
I8
V_R
with video
without video
TYPICAL APPLICATION
Vcc
+24V
Vcc1
4.7Ω
100µF 100nF
27kΩ
220pF
180nF
Video
1.5kΩ ^220nF
14
Input
120pF _560kΩ
20
Line
Flyback
15kΩ 22nF
13
68pF
22nF
18
100kΩ
180pF ^4.7kΩ
1µF
100nF
470µF
820kΩ
10kΩ
IN4148
BC547
10µF
IN4002
47µF
Video Identification
IN4148
100nF
2
1
8
39
4
2.2Ω
10
TDA 8214B
Frame Yoke
30 mH, 15Ω
I_pp = 840mA
7
220kΩ
220kΩ
270Ω
12
11 5 6 15 16 19 17
100kΩ
680pF
220nF
2.2nF
12nF
22kΩ
22kΩ
Horizontal
Frequency
Vcc1
2.2kΩ
SSC
22kΩ
Vertical
100Ω _Amplitude
Vcc1
100Ω
1000µF
1Ω
8/9