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IS31AP2031 Datasheet(PDF) 1 Page - Integrated Silicon Solution, Inc |
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IS31AP2031 Datasheet(HTML) 1 Page - Integrated Silicon Solution, Inc |
1 / 12 page IS31AP2031 Integrated Silicon Solution, Inc. – www.issi.com Rev.A, 12/28/2011 1 CLASS-G AUDIO POWER AMPLIFIER WITH INTEGRATED CHARGE PUMP CONVERTER January 2012 GENERAL DESCRIPTION The IS31AP2031 is a Class-G audio power amplifier with automatic gain control. It drives up to 2.0W (10% THD+N) into an 8Ω speaker from a 4.2V VDD supply. The IS31AP2031 provides low cost, space saving solution for portable equipments which need audio output with higher power by boosting up supply voltage. Its external components just include a few capacitors and resistors (no inductor). The IS31AP2031 use fully differential design to reduce RF noise. The IS31AP2031 integrates de-pop circuitry to reduce pop and click noise during power on/off or shutdown enable operation. The IS31AP2031 also integrates thermal and short circuit protection function. IS31AP2031 is available in QFN-20 (3mm × 3mm) package. It operates from 2.7V to 4.5V over the temperature range of -40°C to +85°C. FEATURES Operates from 2.7V to 4.5V 2.0W into an 8Ω load from a 4.2V supply(10% THD+N) 4 gain levels: 12dB, 16dB, 24dB, 27.5dB AGC function Pulse Count Control serial interface 8kV HBM ESD Thermal and short-circuit protection Integrated Click-and-Pop suppression circuitry Available in QFN-20(3mm × 3mm) package APPLICATIONS Smart phones Cellular phones PDAs GPS Portable electronics TYPICAL APPLICATION CIRCUIT VDD GND IS31AP2031 IN- OUT OUT 10 F CN IN+ CP 0.1 F 4.7 F VBattery CIN 22nF RIN 10k CIN 22nF RIN 10k Differential Input AVIN 10V 10 F SDB Mode Control 100k FS 100k 0.1 F Figure 1 Typical Application Circuit (Differential Input) |
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