Agamem AA8622 Dual video amplifier Datasheet

AA8622
Agamem Microelectronics Inc.
PRELIMINARY
„
Dual Video Amplifier
DESCRIPTION
AA8622 is a dual video amplifier with 6db gain, 75Ÿ output buffer and SAG
correction. The 75Ÿ buffer is capable of driving two circuits. The SAG could
reduce the output coupling capacitor. The power saving circuit provides the
power saving function. The IC is available in 8-pin TSSOP package.
„
1.
2.
3.
FEATURES
Composite video driver with 6dB gain
Dual channels video amplifier
Output short circuit protection function
4.
5.
6.
SAG correction function
A load sufficient for driving two circuits
Low operating current, 17mA typical
7.
8.
Internal voltage clamp circuit
8-pin TSSOP package
„
„
APPLICATION
¾ VCR
¾
¾
¾
Video Camera
TV
Video Player
AA8622 BLOCK DIAGRAM
Vcc
7
Vin2
75ȍ
6dB
CLAMP
Vout2
Driver
Amp
75ȍ
5
100uF
750ȍ
Vsag2
2.2K
75ȍ
6
22uF
2.0Kȍ
Vout1
(6dB)
Vout1
1
75ȍ
6dB
Vout1
Driver
Amp
CLAMP
Vin1
Vout2
(6dB)
Vout2
8
75ȍ
4
100uF
750ȍ
Vsag1
2.2Kȍ
75ȍ
3
22uF
2.0Kȍ
2
1
2009/2/18
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