LM4930 datasheet(2/41 Pages) TI1

Il numero della parte	LM4930

Spiegazioni elettronici	Audio Power Amplifier Series Audio Subsystem with Stereo Headphone & Mono Speaker Amplifiers

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Produttore elettronici	TI1 [Texas Instruments]

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power up circuits

suppression and

Click and pop

Power Management and Control

CTRL

XTAL

OSC

CIRCUIT

REFERENCE

Headphones

2 x 25 mW

HPR

HPL

MIC+

MIC-

LS+

LS-

Microphone

Speaker

MIXER

AB

HP SENSE OUT

HP SENSE IN

MIC BIAS

MIC_REF

BYPASS CAP

DAC_REF

LPF

ADC

DAC

STEREO

+

16

I2S

PCM

48 kHz

Input

8 kHz

InOut

IRQ

SDA

SCL

ADDR

PCMSYNC

PCMCLK

PCMSDI

PCMSDO

I2SSDI

I2SWS

I2SCLK

1M

22 pF

XTAL _ IN

XTAL _ OUT

LM4930

SNAS212B – MAY 2004 – REVISED SEPTEMBER 2004

www.ti.com

Table 1. Key Specifications (continued)

Total shutdown current

2

µA (typ)

PSRR at 217Hz, AVDD = 3V

50

dB (typ)

Typical Application

Figure 1. Typical I2S + Voice codec application circuit for mobile phones

Connection Diagram

Figure 2. 36-Bump micro SMD (Top View)

Figure 3. micro SMD Marking (Top View)

2

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