APA7063

Features:

• Operating Voltage: 3.3V to 5V
• DC Volume Control Interface, 0dB to 105dB
• Depop Circuitry Integrated
• Thermal shutdown protection circuitry
• High supply voltage ripple rejection
• Low Supply Current, I_DD = 13mA at Stereo BTL
• Low Shutdown Current, I_DD = 0.7A
• Bridge-Tied Load (BTL) or Single-Ended-(SE) Modes Operation
• Output Power at 1% THD+N, V_DD=5V
    -1.2 W/Ch (typ) into an 8 Load
• Output Power at 10% THD+N, V_DD=5V
    -1.5 W/Ch (typ) into an 8 Load
• Low Crossover Distortion
• Low Quiescent Current
• Bridge-tied or Stereo(Single-ended) Configurations


Application

Portable and Desktop Computers
Multimedia Monitors
Portable Radios, PDAs, and Portable TVs


Specifications

Symbol	Parameter	Rating	Unit
VCC	Supply Voltage	6	V
TA	Operating Ambient Temperature Range	-40 to 85	°C
TJ	Maximum Junction Temperature	150	°C
TSTG	Storage Temperature Range	-65 to +150	°C
TS	Soldering Temperature,10 seconds	260	°C
VESD	Electrostatic Discharge	-2000 to 2000*1	V

Description

The APA7063 is a monolithic integrated circuit that provides DC volume control, and a stereo bridged audio power amplifiers capable of producing 1.5W(1.2W) into 8 with less than 10%(1.0%) THD+N. APA7063 provides a volume control pin DC_Vol determines the attenuation of output of the amplifiers. The attenuator range is from 0dB (DC_Vol=0.7VDD) to 105dB (DC_Vol=0V) with 32 steps. Both of the depop circuitry and the thermal shutdown protection circuitry are integrated in the APA7063, that reduces pops and clicks noise during power up and when using the shutdown modes and protects the chip from being destroyed by over temperature failure. To simplify the audio system design applications, the APA7063 combines a stereo bridge-tied loads (BTL) mode for speaker drive and a stereo single-end (SE) mode for headphone drive into a single chip, where both modes are easily switched by the SE/BTL input controlpin signal. The APA7063 also features a shutdown function which keeps the supply current only 0.7A (typ).