AN5337 PANASONIC [Panasonic Semiconductor], AN5337 Datasheet - Page 20

• Manufacturer Part Number: AN5337
• Description: NTSC Video Signal Processor IC
• Manufacturer: PANASONIC [Panasonic Semiconductor]

Pin Descriptions (cont.)
Pin No.
ICs for TV
46
47
48
49
50
Sync.in (V)
Lock Det. filter
Sand castle
pulse input/FBP
input for AFC
Sand castle
pulse output
Flyback pulse
input
Pin name
Synchronization : 6.2V
Asynchronization : 0V
Shut down : 8.3V
Waveform
63.5 s
10 to 13 s
4.3V
3.0V
1.5V
4.3V
3.0V
1.5V
Slice level is variable
with external resistor.
Input for sync. signal
separation
V slice level :
2.6 A 6k
Filter for synchroniza-
tion detection of input
sync. and horizontal
oscillation frequency.
Also for shut down
detection
Input of superimposed
burst gate pulse and
vertical/horizontal blank-
ing
Burst gate pulse : 3.5V
Horizontal blanking pulse
Vertical blanking pulse
AFC : 2.5V
Output of superimposed
burst gate pulse which
superimposed V, H and
blanking pulse, to syn-
chronize the AN5307K
with other ICs
Input of flyback pulse
Blanking : 0.7V
• Threshold voltages
: 2.2V
: 1.0V
• Threshold voltage
Same as above
• Threshold voltage
58.5 s/5 s=183mV
Description
46
V
47
48
50
49
V
V
CC
CC
CC
5V
5V
5V
100
Equivalent circuit
6k
200
200
10k
200
300
HBLK
VBLK
50k
BGP
68pF
AFC2
External
External
HBLK
2.6 A
AN5337K
V
Internal
68k
V
25k
CC
CC
9V
90k
9V
2V
Internal
100
A