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BL6211 Dataheets PDF



Part Number BL6211
Manufacturers BELLING
Logo BELLING
Description 1.25 Watt Fully Differential Audio Power Amplifier
Datasheet BL6211 DatasheetBL6211 Datasheet (PDF)

BL6211 1.25 Watt Fully Differential Audio Power Amplifier With Internal Feedback Resistors 1 FEATURES Fully differential amplifier Improved PSRR at 217Hz(VDD>3.0V) 86dB (typ) Power output at 5.0V & 1% THD 1.25W (typ) Power output at 3.6V & 1% THD 0.6W (typ) Ultra low shutdown current 0.01 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 .

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BL6211 1.25 Watt Fully Differential Audio Power Amplifier With Internal Feedback Resistors 1 FEATURES Fully differential amplifier Improved PSRR at 217Hz(VDD>3.0V) 86dB (typ) Power output at 5.0V & 1% THD 1.25W (typ) Power output at 3.6V & 1% THD 0.6W (typ) Ultra low shutdown current 0.01 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 2 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 8Ω 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. 3 APPLICATIONS Wireless handsets Portable audio devices PDAs, Handheld computers http://www.belling.com.cn 4 TYPICAL APPLICATION BL6211 Differential Audio Input 0.39 F Ci 20k Ri VIH VIL CB 1 F C B is optional Ci 0.39 F Ri 20k CS 1F VDD R f 40k IN- - SHUTDOWN BYPASS Bias VDD/2 Circuitry + BL6211 - + IN+ 40k GND R f VO1 VO2 RL 8 Figure 1 Typical Audio Amplifier Application Circuit 5 ORDER INFORMATION Table 1. Order information Part Number BL6211ITLX BL6211MM Marking AAG ABG Package 9 Bump micro SMD 8-pin MSOP8 Shipping 3000 pcs / Tape & Reel 3000 pcs / Tape & Reel http://www.belling.com.cn 6 PIN DESCRIPTIONS 6.1 Pin Diagram (Top View) BL6211 Mini Small O utline (MSO P8) Package (Top View) SHUTDOWN 1 BYP ASS 2 3 IN+ IN- 4 8 VO2 7 GND 6 VDD 5 VO1 MSO P8 Marking EG ABG E - Die Run Traceability G - Date Code ABG - BL6211MM ROHS Figure 2 Pin Diagram of BL6211 6.2 Pin Definitions and Functions Table 2. Pin Definitions and Functions MSOP8 1 9-Bump micro SMD C3 2 C1 3 A3 4 A1 Symbol SHUTDOWN BYPASS IN+ IN- Type Functions I Shutdown Pin, active low. Common mode voltage. Connect a bypass I capacitor to GND for common mode voltage filtering. The bypass capacitor is optional. I Positive differential input. I Negative differential input. http://www.belling.com.cn MSOP8 5 6 7 8 9-Bump micro SMD A2 B3 B1,B2 C2 Symbol VO1 VDD GND VO2 Type Functions O Positive differential output. I Power supply I Ground. O Negative differential output. BL6211 7 OPERATION CONDITIONS AND ELECTRICAL CHARACTERISTICS 7.1 Absolute Maximum Ratings (note 1) Supply voltage, VDD……………………………………………-0.3V to 6.0V Input voltage……….


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