LM49101, LM49101TMEVAL

SNAS475A – MARCH 2009 – REVISED APRIL 2013

www.ti.com

Electrical Characteristics VDDLS = 5.0V, VDDHP = 2.75V

(1)(2) (continued)

The following specifications apply for VDDLS = 5.0V, VDDHP = 2.75V, TA = 25°C, all volume controls set to 0dB, unless

otherwise specified. LS = Loudspeaker, HP = Headphone, EP = Earpiece.

LM49101

Units

Parameter

Test Conditions

(Limits)

Typ(3)

Limits(4)

VRIPPLE on VDDLS = 200mVPP, fRIPPLE = 217Hz, CB = 2.2μF

All inputs AC terminated to GND, output referred

LS: Mode 1, 5, 9, 13, RL = 8Ω BTL

90

dB

PSRR

Power Supply Rejection Ratio

LS: Mode 2, 6, 10, 14, RL = 8Ω BTL

74

dB

HP: Mode 4, 5, 6, 7, RL = 32Ω SE

84

dB

HP: Mode 8, 9, 10, 11, RL = 32Ω SE

79

dB

f = 217Hz, VCM = 1VP-P

CMRR

Common-Mode Rejection Ratio

LS: RL = 8Ω BTL, Mode 1

60

dB

HP: RL = 32Ω SE, Mode 4

60

dB

XTALK

Crosstalk

HP PO = 20mW, f = 1kHz, Mode 8

72

dB

10

K

Ω (min)

Maximum Gain setting

12.5

15

K

Ω (max)

ZIN

MIN, LIN, and RIN Input Impedance

90

K

Ω (min)

Maximum Attenuation setting

110

130

K

Ω (max)

RON

On Resistance

Analog Switch On

2

Ω

Maximum Gain

18

dB

VOL

Digital Volume Control Range

Maximum Attenuation

–80

dB

VOL

Volume Control Step Size Error

±0.02

dB

CB = 2.2μF, HP, Normal Turn-On Mode

30

ms

TWU

Wake-Up Time from Shutdown

CB = 2.2μF, HP, Fast Turn-On Mode

15

ms

8

Submit Documentation Feedback

Copyright © 2009–2013, Texas Instruments Incorporated

Product Folder Links: LM49101 LM49101TMEVAL