LM49150 datasheet(5/28 Pages) NSC

5 / 28 page

Absolute Maximum Ratings (Notes 1, 2)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Supply Voltage (Note 1)

6.0V

Storage Temperature

−65°C to +150°C

Input Voltage

−0.3 to V

DD +0.3

Power Dissipation (Note 3)

Internally Limited

ESD Rating (Note 4)

2.0kV

ESD Rating (Note 5)

200V

Junction Temperature

150°C

Soldering Information

See AN-1112

“Micro SMD Wafer

Level Chip Scale

Package”

Thermal Resistance

JA (typ) - TLA20KGA

46.1°C/W

Operating Ratings

Temperature Range

−40°C to 85°C

Supply Voltage

2.7V

≤ V

DD ≤ 5.5V

Supply Voltage (I2C) (Note 10)

1.7V

≤ I2CV

DD ≤ 5.5V

Electrical Characteristics 3.3V (Note 2)

The following specifications apply for V

DD = LSVDD = 3.3V, AV = 0dB, Loudspeaker RL = 15μH+8Ω+15μH (Note 8), Earpiece RL

= 8Ω, f = 1kHz, unless otherwise specified. Limits apply for T

A = 25C. LS = Loudspeaker, HP = Headphone, EP = Earpiece.

Symbol

Parameter

Conditions

LM49150

Units

(Limits)

Typical

(Note 6)

Limits

(Note 7)

Supply Current

IN = 0, No Load

LS mode 1

3.7

mA (max)

HP mode 8

4.7

6.7

mA (max)

EP Bypass mode

0.8

1.2

mA (max)

LS + HP mode 5 and mode 10

9.5

mA (max)

LS mode 1, GAMP_SD = 1

mA (max)

HP mode 8, GAMP_SD = 1

4.3

6.1

mA (max)

Shutdown Current

0.04

µA (max)

Output Offset Voltage

IN = 0V, LS, RL = 8Ω

LS Gain = 6dB, Stereo mode 10

mV (max)

IN = 0V, HP, RL = 32Ω

Ground Referenced, Stereo mode 10

mV (max)

IN = 0V, EP Bypass only, RL = 8Ω

0.8

mV (max)

Output Power

LS mode 1, THD+N = 1%, f = 1kHz

LS Gain = 6dB, R

L = 4Ω

845

LS mode 1, THD+N = 1%, f = 1kHz

LS Gain = 6dB, R

L = 8Ω

520

450

mW (min)

HP mode 8, THD+N = 1%, f = 1kHz

HP Attenuation = 0dB, R

L = 16Ω

HP mode 8, THD+N = 1%, f = 1kHz

HP Attenuation = 0dB, R

L = 32Ω

mW (min)

EP Bypass only, THD+N = 1%, f = 1kHz

L = 8Ω

mW (min)

THD+N

Total Harmonic Distortion + Noise

LS mode 1, f = 1kHz

OUT = 250mW; RL = 8Ω

0.02

HP mode 8, f = 1kHz

OUT = 20mW; RL = 32Ω

0.009

EP Bypass only, f = 1kHz

OUT = 20mW; RL = 8Ω

0.15

Efficiency

LS output

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