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BL6211

1.25 Watt Fully Differential Audio Power Amplifier

With Internal Feedback Resistors

Features

Fully differential amplifier

Improved PSRR at 217Hz(VDD>3.0V)

Power output at 5.0V & 1% THD

Power output at 3.6V & 1% THD

Ultra low shutdown current

86dB (typ)

1.25W (typ)

0.6W (typ)

0.01渭A (typ)

Improved pop & click circuitry eliminates noises during turn-on and turn-off transitions

Thermal overload protection circuitry

No output coupling capacitors, bootstrap capacitors required

Unity-gain stable

External gain configuration capability

Available in space-saving package: 9-bump micro SMD and 8-pin MSOP8

General description

The BL6211 is a fully differential audio power amplifier designed for portable communication device

applications. It is capable of delivering 1.25 watt of continuous average power to an 8 BTL load with

less than 1% distortion (THD+N) from a 5V battery voltage. It operates from 2.2 to 5.5V.

Features like 86dB PSRR at 217Hz, improved RF-rectification immunity, the space-saving 8-pin

MSOP8 and 9-bump micro SMD package, the advanced pop & click circuitry, a minimal count of

external components and low-power shutdown mode make BL6211 ideal for wireless handsets.

The BL6211 is unity-gain stable, and the gain can be configured by external input resistors and internal

feedback resistors.

Applications

Wireless handsets

Portable audio devices

PDAs, Handheld computers

http://www.belling.com.cn

-1-

8/14/2006

Wrote by 2006

Total

10 Pages

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• BL6211
  英文版
  1.25 Watt Fully Differential Audio Power Amplifier With Inte...
  BELLING
  BL6211
• BL6211
  英文版
  1.25 Watt Fully Differential Audio Power Amplifier With Inte...
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  BL6211

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