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发布者:微桥 发布时间:2012-1-4 阅读:9384次    关键字: 音频功放
AD22650-3-Vrms Cap-Less Line Driver


AD22650-3-Vrms Cap-Less Line Driver with Adjustable Gain DataSheet  

Features
􀁺 Operation Voltage: 3V to 5.5V
􀁺 Cap-less Output
- Eliminates Output Capacitors
- Improves Low Frequency Response
- Reduces POP/Clicks
􀁺 Low Noise and THD
- SNR > 102dB
- Typical Vn < 12uVrms
- THD+N < 0.02%
􀁺 Maximum Output Voltage Swing into 2.5k Load
- 2Vrms at 3.3V Supply Voltage
- 3Vrms at 5V Supply Voltage
􀁺 Differential 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

Description
    The AD22650 is a 3-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 AD22650 is capable of delivering 3-Vrms output into a 2.5kΩ load with 5V supply. The gain settings can be set by users from 1V/V to 10V/V externally. The AD22650 has internal and external under voltage protection to prevent POP noise.
Build-in shutdown control and de-pop control sequence also help AD22650 to be a pop-less device.
    The AD22650 is available in a 14-pin TSSOP package.

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