LM49150TLEVAL datasheet(2/31 Pages) TI1

номер детали	LM49150TLEVAL

подробное описание детали	Mono Class D Audio Subsystem with Earpiece Driver and Stereo Ground Referenced Headphone Amplifiers

PDF	31 Pages

Scroll/Zoom	100%

производитель	TI1 [Texas Instruments]

домашняя страница	http://www.ti.com

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2 / 31 page

Volume

Class D

Volume

INM+

Volume

1 PF

0.22 PF

SDA

SCL

+ 6

+12 dB

Speaker

LSOUT+

- 6 dB

GND

Bias

Cs6

Bypass

CIN4

CIN3

CIN2

CIN1

INR

INL

CVDD

Interface

Mixer

and

Output

Mode

Select

2.2 PF

1 PF

Cs7

VDD

80 ~ + 18 dB

BYPASS

INM-

LSOUT-

2.2 PF

0.1 PF

Cs2

Cs1

LSVDD

LDO

HPR

HPL

Cs5

Charge Pump

CPP

CPN

CPGND

VO (LDO)

2.2 PF

Headphone

-18 dB - 0 dB

(8 steps)

2.2 PF

0.1 PF

Cs3

Cs4

CPVss

Headphone

-18 dB - 0 dB

(8 steps)

Amp

LM49150, LM49150TLEVAL

SNAS439B – AUGUST 2008 – REVISED MARCH 2009

www.ti.com

Table 1. Key Specifications

VALUE

UNIT

Output power at VDD = 5V:

Speaker:

RL = 8Ω BTL, THD+N ≤ 1%

1.25

W (typ)

Headphone:

RL = 32Ω SE, THD+N ≤ 1%

mW (typ)

Earpiece:

RL = 8Ω SE, THD+N ≤ 1%

135

mW (typ)

Output power at VDD = 3.3V:

Speaker:

RL = 8Ω BTL, THD+N ≤ 1%

520

mW (typ)

Headphone:

RL = 32Ω BTL, THD+N ≤ 1%

mW (typ)

Earpiece:

RL = 8Ω SE, THD+N ≤ 1%

mW (typ)

Output Offset

LS Mode

mV (typ)

HP Mode

mV (typ)

Earpiece

mV (typ)

Single Supply Operation (VDD)

2.7 to 5.5

I2C Single Supply Operation

1.7 to 5.5

Typical Application

Figure 1. Typical Audio Amplifier Application Circuit-Output Capacitor-less

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