Speaker Amplifier - OKI Electric Industry - #1

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ML2620 is monaural speaker amplifier with loud sound technology that enables louder sound from small speaker.

ML2620 integrates digital volume, automatic level controller, fade in and fade out function and clock PLL into QFN and W-CSP package. ML2620 is suitable for portable applications such as mobile phone, portable TV and other thin and small playback devices that is difficult to generate enough volume.

LVDD LGND

SP VOL

AIN

ALC

IOVDD CSB

I2CSDA/SDATA I2CSCL/SCLK IFSEL

CLOCK

PLLC

RESETB

□ VMID

2 wired Serial

3 wired Serial

PLL

•CPU interface

2 wire serial slave mode

3 wire serial •Loud sound technology for small speaker •Automatic Level Controller •Fade in and fade out function •8 ohms 800mW monaural speaker amp •Volume function •Clock 32kHz to 20MHz •Power supply:

Please refer to ML2620 datasheet for detail.

IO (IOVDD) Core (LVDD)

Speaker (HVDD)

1.65V to 3.6V 2.25V to 2.75V 2.7V to 5.5V

■

•Package

20QFN (4mm x 4mm, 0.5mm pitch) 20W-CSP(2.54mm x 2.42mm, 0.5mm pitch)

ù LVDD ç LGND

HVDD D HGND D

SPOUT+ ò-i SPOUT- 6--

Analog in

^{11 1}-□ AIN

1.65~3.6v4-i IOVDD

-1—S CSB

—ù SDATA —5 SCLK —a RESETB

CPU

VMID

(3-w mode) CLOCK-

IFSEL

0 CLOCK PLLC

This is a product introduction, not the products' data sheet. Specification are subject to change without notice. OKI Electric Industry Co., Ltd., Silicon Solutions Company

Japan: www.okisemi.com/jp/english/, USA: www.okisemi.com/us/, Europe: www.okisemi.com/eu/, Taiwan: www.okisemi.com/tw/, Hong Kong: www.okisemi.com/hk/, Shanghai: www.okisemi.com/sh/, Singapore: www.okisemi.com/sg/

2007. 10. 26 PEPI2620-