AD22657B-2-Vrms Cap-Less Line Driver

AD22657B-2-Vrms Cap-Less Line Driver with Adjustable Gain DataSheet

Description
    The AD22657B is a 2-Vrms cap-less stereo line
driver. The device is ideal for single supply
electronics. Cap-less design can eliminate output
dc-blocking capacitors for better low frequency
response and save cost.
   The AD22657B is capable of delivering 2-Vrms
output into a 10kΩ　load with 3.3V supply. The gain
settings can be set by users from 1V/V to 10V/V
externally. The AD22657B has under voltage
protection to prevent POP noise. Build-in shutdown
control and de-pop control sequence also help
AD22657B to be a pop-less device.
    The AD22657B is available in a 10-pin MSOP
package.

Features
 Operation Voltage: 3V to 3.6V
 Cap-less Output
- Eliminates Output Capacitors
- Improves Low Frequency Response
- Reduces POP/Clicks
 Low Noise and THD
- Typical SNR 107dB
- Typical Vn 7uVrms
- Typical THD+N < 0.02%
 Maximum Output Voltage Swing into 2.5k Load
- 2Vrms at 3.3V Supply Voltage
 single-ended Input
 External Gain Setting from 1V/V to 10V/V
 Fast Start-up Time : 0.5ms
 Integrated De-Pop Control
 External Under Voltage Protection
 Thermal Protection
 Less External Components Required
 +/-8kV IEC ESD Protection at line outputs

Applications
 LCD / PDP TVs
 CD / DVD players
 Set-Top Boxes
 Home Theater in Box