User guide

S1A0071 Audio Processor for Class-D Power AMP

Digital & Analog Co., Ltd. (Rev. 1.0) -3-

1. INTRODUCTION

The S1A0071 is an Audio processor for Class D-type audio amplifier, will help you to make more

easier the class D type audio amplifier and sound system. This is designed by the Cool Power

Processing (CPP

) technology. The CPP have a characteristic of high fidelity and high power

efficiency.

◎ OVERVIEW

○ Sound Processing : CPPTM (Cool Power Processing) Class-D Architecture

○ Audio Sound Processor : Voltage Amp, Current Amp, And Feed Back Amp

○ System Support Circuit : Protection, Mute, Digital Logic

○ High Speed Comparator, Logic Buffer include

◎ FEATURE

○ For Audio Power Amplifier

○ Operating Voltage ( Driver Supply ) : ± 5.0V ~ ± 6.0V

○ External MOSFET Supply Voltage Range : ± 10V ~ ± 45V Usable

○ Wide Output Power Compatibility : 10W ~ 200W

○ High Fidelity : 10W @ 4Ω, 0.01% THD+N

5W @ 8Ω, 0.008% THD+N

○ High Efficiency : 83% @ 70W, 4Ω, THD+N < 10%,VCCP= ±25V

: 91% @ 40W, 8Ω, THD+N < 10%,VCCP= ±25V

○ Wide Bandwidth : 1 ~ 80KHz @ 8Ω

○ Dynamic Range : 105dB @ 100W Amp

○ Damping Factor : more than 300

○ Output Noise Voltage : 120μV @ AES17, A-weighted Filter, Input Grounded

○ Very Low Pop Noise When Power on/off

○ Mute Function Without Pop Noise

○ Enable to Set Output Soft Clipping Level

○ Enable to Set P-MOS & N-MOS On-Time Delay Independently

○ Protections: Internal Thermal Protection

Output Over Current Protection

Output Short Protection (Output to VCCP, Output to GND, Output to VSSP)

○ Protection Operating Monitor Output Pin: Direct LED Drive Enable

○ 48TSSOP Package