AP130 Datasheet | AMIC Technology

Features n n n n n 1 watt per channel with 8-ohm load Max. efficiency ≈ 80% with 8-ohm load at 5 volts Filterless Digital gain control Build-in depop circuitry n n n n Error protection for short circuit and over-temperature Mute (shutdown) current < 1µA typical Low operating current (4m A at 5 volts without load) TSSOP 24L package available 1W Per Channel Stereo Class-D Audio Power Amplifier General Description The AP130 is an oversampling class-D power amplifier for stereo audio applications. It provides high power-efficiency for filterless 8-ohm load. Build-in depop, mute and gain control features simplify the applications. BTL (Bridge-Tied-Load) configuration delivers up to 1 watt into 8-ohm load per channel at 5-V supply voltage. It allows direct coupling of the power signal. Reliability is improved through over-temperature and short circuit protections. The class-D power amplifier enables high efficiency applications for portable devices. Pin Configurations n TSSOP ~ ~ PGND OUTN1 G0 PV DD INN1 AGND OSC INN2 PV DD SDB OUTN2 PGND 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 PGND OUTP1 VREF PV DD INP1 VDD ERR INP2 PV DD G1 OUTP2 PGND AP130X 19 18 17 16 15 14 13 ~ ~ PRELIMINARY (November, 2001, Version 0.1) AMIC Technology, Inc Block Diagram VDD INN1 VGA Over Sampling PVDD Gate Driver OUTN1 PGND PVDD INP1 VGA Over Sampling Gate Driver OUTP1 PGND SDB G0 G1 OSC VREF Gain Control Internal Voltage Generator Ramp Generator Control Logic for . Shut down, Depop . Over-temperature protection . Short circuit Protection ERR PVDD INN2 VGA Over Samping Gate Driver OUTN2 PGND PVDD INP2 VGA Over Samping Gate Driver OUTP2 PGND AGND PRELIMINARY (November, 2001, Version...