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发布者:微桥 发布时间:2012-1-4 阅读:6833次    关键字: 音频功放
AD22653-3-Vrms Cap-Less Line Driver


AD22653-3-Vrms Cap-Less Line Driver with Adjustable Gain DataSheet

Features
􀁺 Operation Voltage: 3.0V to 3.6V
􀁺 Cap-less Output
- Eliminates Output Capacitors
- Improves Low Frequency Response
- Reduces POP/Clicks
- Reduce Board Area and Component Cost
􀁺 Low Noise and THD
- SNR > 102dB
- Typical Vn < 12uVrms
- THD+N < 0.02%
􀁺 Maximum Output Voltage Swing into 10kΩ Load
- 2Vrms at 3.3V Supply Voltage
􀁺 600Ω Output Load Compliant
􀁺 Differential Input, single-Ended Output
􀁺 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
􀁺 Active Mute Control for Pop-less Audio ON/OFF
Control
􀁺 +/-8kV IEC ESD Protection at line outputs

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

Description
    The AD22653 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 AD22653 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, and gain can be configured individually for R/L channel. The AD22653 has built-in active-mute control for pop-less audio on/off control.
    The AD22653 has internal and external under voltage protection to prevent POP noise. Built-in de-pop control sequence also help AD22653 to be a
pop-less device. The AD22653 is available in a 14-pin TSSOP package.

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