LM49120, LM49120TLEVAL

www.ti.com

SNAS431C – JUNE 2008 – REVISED MAY 2013

Electrical Characteristics 3.3V

(1) (2)

The following specifications apply for VDD = 3.3V, TA = 25°C, all volume controls set to 0dB, unless otherwise specified.

LM49120

Units

Parameter

Test Conditions

(Limits)

Typ(3)

Limits(4)

VIN = 0, No Load

Output mode 5, 6, 7, 9, 10, 11, 13, 14, 15

6.2

8.0

mA (max)

OCL Headphone

Output mode 5, 6, 7, 9, 10, 11, 13, 14, 15

5.5

mA

SE Headphone

Output mode 1, 2, 3

4.1

5.3

mA (max)

IDD

Supply Current

OCL Headphone

Output mode 1, 2, 3

5.5

mA

SE Headphone

Output mode 4, 8, 12

3.7

4.7

mA (max)

OCL Headphone

Output mode 4, 8, 12

3.0

mA

SE Headphone

ISD

Shutdown Current

Shutdown Mode 0

0.01

1

µA

VIN = 0V, Output Mode 10, LS output

10

mV

VOS

Output Offset Voltage

VIN = 0V, Output Mode 10, HP output,

1.5

5

mV (max)

(OCL), 0dB (HP Output Gain)

LSOUT; RL = 8Ω

540

500

mW (min)

THD+N = 1%; f = 1kHz, BTL, Mode 1

PO

Output Power

LOUT and ROUT; RL = 32Ω

35

30

mW (min)

THD+N = 1%; f = 1kHz, OCL, Mode 8

MONOOUT

f = 1kHz

0.05

%

POUT = 250mW; RL = 8Ω, BTL, Mode 1

THD+N

Total Harmonic Distortion + Noise

LOUT and ROUT, f = 1kHz

0.015

%

POUT = 12mW; RL = 32Ω, SE, Mode 8

LOUT and ROUT, f = 1kHz

0.015

%

POUT = 12mW; RL = 32Ω, OCL, Mode 8

A-weighted,

inputs terminated to GND, Output referred

Speaker Amplifier; Mode 1

15

μV

Speaker Amplifier; Mode 2

24

μV

Speaker Amplifier; Mode 3

29

μV

Headphone Amplifier; SE, Mode 4

8

μV

eOUT

Output Noise

Headphone Amplifier; SE, Mode 8

8

μV

Headphone Amplifier; SE, Mode 12

11

μV

Headphone Amplifier; OCL, Mode 4

8

μV

Headphone Amplifier; OCL, Mode 8

9

μV

Headphone Amplifier; OCL, Mode 12

12

μV

(1)

“Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur, including inoperability and degradation of

device reliability and/or performance. Functional operation of the device and/or non-degradation at the Absolute Maximum Ratings or

other conditions beyond those indicated in the Recommended Operating Conditions is not implied. The Recommended Operating

Conditions indicate conditions at which the device is functional and the device should not be operated beyond such conditions. All

voltages are measured with respect to the ground pin, unless otherwise specified.

(2)

The Electrical Characteristics tables list spacified specifications under the listed Recommended Operating Conditions except as

otherwise modified or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and

are not ensured

(3)

Typical values represent most likely parametric norms at TA = +25ºC, and at the Recommended Operation Conditions at the time of

product characterization and are not ensured.

(4)

Datasheet min/max specification limits are ensured by test or statistical analysis.

Copyright © 2008–2013, Texas Instruments Incorporated

Submit Documentation Feedback

5

Product Folder Links: LM49120 LM49120TLEVAL