AN5693 View Datasheet(PDF) - Panasonic Corporation
Part Name
Description
Manufacturer
AN5693
Panasonic Corporation
AN5693 Datasheet PDF : 34 Pages
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AN5693K
ICs for TV
s Technical Information
• Package Allowable Loss
3 000
2 800
2 600
2 400
2 200
2 000
1 800
1 600
1 400
1 200
1 000
800
600
400
200
0
0
PD Ta
Without external
Heat-sink
Rthj = 54 °C/W
PD = 2 315 mW(25 °C)
25 50 75 100 125 150
Ambient temperature, Ta (°C)
• Outline of major blocks
• Video
(1) Y delay line built-in : total delay time is approximately 690 ns.
(2) Sharpness control is by using delay line aperture control. (contour emphasis type)
Together with black level extention circuit, high quality picture is achieved.
(3) Chroma trap is built-in : Trap frequency is synchronised with the chroma VCO frequency at 4.43 MHz/3.58
MHz automatically. By I2C bus, the trap can be forced to by-pass. In SECAM mode, about 4.43 MHz free run
frequency is obtained. When in black & white(B/W)mode(killer"On"), the trap is automatically by-passed.
(4) Pedestal clamp filter is built-in.
(5) Service switch : (Y contrast min., Vertical output stop). Can be switched by I2C bus.
(6) Chart showing the modes of the trap :
System(fC)
Color or B/W
Trap Status
4.43 MHz(PAL)
Color
4.43 MHz
B/W
4.43 MHz free-run
3.58 MHz(NTSC)
Color
3.58 MHz
SECAM
B/W
Color
3.58 MHz free-run
4.43 MHz free-run
B/W
Forced manual mode by I2C bus
Forced through mode by I2C bus
4.43 MHz free-run
About 5.5 MHz
No trap point
• Chroma
(1) Using base-band 1H delay line(external 1HDL IC required), adjustment free is achieved.
(2) BPF(4.43 MHz/3.58 MHz), ACC filters are built-in, thus external components are reduced.
(3) By changing the following mode using the I2C bus :
1. PAL/NTSC
2. 4.43 MHz/3.58 MHz
3. Forced PN/Forced SECAM
and together with the SECAM IC for automatic SECAM detection, multi-system application is possible.
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