Multimedia ICs
Dual
Voltage-controlled Amplifier
BA7655A / BA7655AF
The BA7655A and BA7655AF are dual
voltage-controlled amplifier ICs designed for use in camcorders and VCRs.
By varying the control
voltage the amplifier gain can varied from -6dB to +6dB.
When the control pin
voltage drops below 1V the amplifier enters Power Save Mode which mutes the output and reduces the current drawn by the IC.
Applications • Video cassette recorders and camcorders
Features • 1) Wide bandwidth.
2) Wide dynamic range.
3) Low power cousumption.
4) Output muting possible.
5) Low
voltage gain temperature drift.
•Block diagram
VCC 8 IN2 7 CTL2 6 OUT2 5
VCA2
VCA1
1 IN1
2 CTL1
3 OUT1
4 GND
1
Multime...