M65818AFP datasheet(4/39 Pages) RENESAS

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M65818AFP

Rev.1.00, Sep.04.2003, page 4 of 38

A-1 Difference between M65818AFP and M65817AFP

M65818AFP has added the following functions to M65817AFP.

M65817AFP

M65818AFP

PWM Output Form

General Pulse Width Modulation

Selectable 4 kind of Output Form (Refer to

M65818AFP Data Sheet: P28/38

System1Mode bit22,23)

Reverse Output

Pins Function of PWM

Output "OUTL1-/R1-"

Reverse Phase between

OUTL1+/R1+ and OUTL1-/R1-

Selectable phase between OUTL1+/R1+

and OUTL1-/R1- to Same/Reverse (Refer to

M65818AFP Data Sheet: P28/38

System1Mode bit24)

∆ΣOperation Ratio

16fso Fixed

Selectable operation ratio to 16fso/32fso

(Refer to M65818AFP Data Sheet: P31/38

System2 Mode bit16)

Selection of Muting operation at

Primary Side Asynchronous

Detection

PWM Output Duty 50% Mute at

primary side asynchronous detection

Selectable PWM Output Duty 50% Mute

On/Off at primary side asynchronous

detection (Refer to M65818AFP Data Sheet:

P28/38 System1Mode bit20 )

Selection of External 8Fs

Data Input Mode

Only synchronize to secondary side

clock (Input the data to Gain Control

Block)

Added the function of synchronization to

primary side clock:

Input the data to Sampling Rate Converter

(Refer to M65818AFP Data Sheet: P28/38

System1Mode bit21)

A-2 The Example of Evaluation Circuit

OUTR1+

OUTL1+

OUTL1-

OUTL2-

OUTR1-

OUTR2-

OUTR2+

OUTL2+

DATA

BCK

LRCK

M65818AFP

Reference Characteristics

Condition

S/N

104dB(typ)

THD+N

0.0014%(typ)

• Input Signal : 1kHz 0dB Full scale sine wave

• Fs : Primary Clock 44.1kHz, Secondary Clock 48kHz

• PWM Output Format1

• AC dithering E

• DC dithering 0.1%

• Gain Data Setting:(Index)10000b/(Mantissa)10000000b

• THD+N : Filter 20kHz LPF S/N : Filter 20kHz LPF + JIS-A

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