Rev.1.00, Sep.04.2003, page 1 of 38

M65818AFP

Digital Amplifier Processor of S-Master* Technology

REJ03F0019-0100Z

Rev.1.00

Sep.04.2003

Description

The M65818AFP is a S-Master technique processor for digital amplifier enable to convert from multi liner-PCM digital

input signal to high precise switching-pulse digital output without analog processing.

The M65818AFP has built-in 24bit sampling rate converter and digital-gain-controller.

The M65818AFP enables to realize high precise (X`tal oscillation precision) fully digital amplifier systems combining

with power driver IC.

Features

• Built-in 24bit Sampling Rate Converter.

Input Signal Sampling Rate

from 32KHz to 192KHz(24bit Maximum).

4 kinds of Digital Input Format.

• Built-in L/R Independent Digital Gain Control.

• Built-in Soft Mute Function with Exponential Approximate-Curve.

• Correspondence for SACD signal (64Fs 1bit,Fs=44.1KHz).

• Direct Output from Sampling Rate Converter.

• 3.3V and 5.0V Power Supply Operation at Output Clock, Input Data, and Control Signal Port

Main Applications

• Master Clock

Primary Clock: 256Fsi/512Fsi Secondary Clock: 1024Fso/512Fso

• Input Signal Format:

MSB First Right Justified(16/20/24bit),MSB First Left Justified(24bit)

LSB First Right Justified(24bit),I2S(24bit)

• Input Signal Sampling Rate from 32kHz to 192kHz.

• 8Fs Input Mode: Correspondence for External Digital Filter, Sampling Rate Converter Outputs.

• Gain Control Function:

+30dB~ -

∞dB(0.1dB Step until -96dB, -138dB Minimum)

• Third Order ∆Σ (16Fso:6bit/5bit,32Fso: 5bit)

• Sampling Rate Converter Output :MSB First Left justified /Lch,Rch Independent/32BCK

Recommended Operating Conditions

Logic Block:3.3V±10%, PWM Buffer Block : 5.0V±10%

(** "S-Master" is the digital amplifier technology developed by Sony Corporation.

"S-Master" is a trademark of Sony Corporation.