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BA7653AF Datasheet

  • BA7653AF

  • Video signal switcher, 1 x 3-channel with clamped-input

  • 6頁(yè)

  • ROHM

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Multimedia ICs
Video signal switcher, 1
脳
3-channel
with clamped-input
BA7653AF
The BA7653AF is a video-signal switching IC that contains a three-channel clamped-input multiplexer. The inputs
are sync-tip clamped (synchronous edge of the video input signals are aligned to the same voltage), and as the input
impedance is extremely large, it is possible to use a small value for the clamp capacitor (the recommended capacitor
is 0.01碌F (FZ) ceramic).
鈥?/div>
Applications recorders, television and camcorders
Video cassette
鈥?/div>
Featuresclamp capacitors can be used (ceramic,
1) Small
3000pF (Min.), 0.01碌F (FS) (recommended)).
2) Low supply voltage operation possible. Supply volt-
age range is 3.7V to 7.7V.
3) Superimposition used for fast switching speed with
low switching noise (70nsec. Typ.).
4) Low power consumption (when V
CC
= 5V, 25mW
Typ.).
5) Wide dynamic range (3.1V
P-P
Typ. for V
CC
= 5V).
6) Excellent frequency characteristics (10MHz, 0dB
Typ.).
7) Low interchannel crosstalk ( 鈥?70dB Typ.).
8) Voltage can be applied to the control pins even
when V
CC
is not applied.
鈥?/div>
Absolute maximum ratings (Ta = 25擄C)
Parameter
Applied voltage
Power dissipation
Operating temperature
Storage temperature
Symbol
V
CC
Pd
Topr
Tstg
Limits
9
500
鈭?/div>
鈥?25 ~ + 75
鈥?55 ~ + 125
Unit
V
mW
擄C
擄C
鈭?/div>
When mounted on a 50mm
脳
50mm board, reduced by 5mW for each increase in Ta of 1擄C over 25擄C.
鈥?/div>
Recommended operating conditions (Ta = 25擄C)
Parameter
Power supply voltage
Symbol
V
CC
Limits
4.0 ~ 7.0
Unit
V
1

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