TEA2029 STMICROELECTRONICS [STMicroelectronics], TEA2029 Datasheet - Page 39

• Manufacturer Part Number: TEA2029
• Description: APPLICATION NOTE
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Figure 75 : Frame Blanking Safety Block Diagram
Figure 76
VII.6 - On-chip Line Flip-flop
Figure 77
Figure 78
Counters
V
V
V
16
IN
10
Frame
From
C13
max = 16 s
S
R
NORMAL OPERATION
Q
Q
13
BLK’
BLK’
24 lines
2
V
IN
26 s
16
IF
IF
I
16 s Window
for
&
&
BLANKING OUTPUT
max
&
Reset
BLANK’
RESET
S1
IF
S
R
T
Where T
pin 18.
- If in synchronized mode :
ThereforeT
TEA2028 - TEA2029 APPLICATION NOTE
(Line Flyback)
10
1
T
R14 = 3.32k
C13 = 3.3nF
TOO LONG FLYBACK PULSE (FR)
Q
VCO
(Pin 28)
Safety
= 70 10
= 35 T
LF
R
S
= 2 s,
VCO
1
10
VCO
Q
-6
=
is the V
- 4 R14 C13
- K R14 C13
x 1
1
s (nominal value)
CO
Blanking Output
to Super Sand Castle
period of oscillation on
10
Output
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