LM4931 datasheet(5/47 Pages) NSC

5 / 47 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.

Analog Supply Voltage

6.0V

Digital Supply Voltage

6.0V

Storage Temperature

-65˚C to +150˚C

Power Dissipation (Note 3)

Internally Limited

ESD Susceptibility

Human Body Model (Note 4)

2500V

Machine Model (Note 5)

200V

Junction Temperature

150˚C

Thermal Resistance

JA - TLA42YVA

105˚C/W

Operating Ratings

Temperature Range

MIN

≤ T

MAX

−40˚C

≤ T

≤ +85˚C

Supply Voltage

DD (Note 8)

2.7V - 4.0V

DD (Note 8)

2.7V - 5.0V

Electrical Characteristics DV

DD = 3V, AVDD = 3V, RLHP =32Ω,RLHF =8Ω

(Notes 1, 2)

The following specifications apply for the circuit shown in Figure 1, unless otherwise specified. Limits apply for T

A = 25˚C.

Symbol

Parameter

Conditions

LM4931

Units

(Limits)

Typical

(Note 6)

Limits

(Note 7)

Power

Digital Shutdown Current

Mode 0

MLCK = 12MHz (Note 9)

400

500

µA (max)

No MCLK

µA (max)

Digital Standby Current

Mode 1, f

MCLK = 12MHz

400

1200

µA (max)

MLCK = 12MHz

Digital Power Supply Current

Mode 2, 3, 4

1.3

3.2

mA (max)

Mode 5, 6, 7

2.8

mA (max)

Mode 8, 9, 10

3.2

7.5

mA (max)

PLLI

PLL Quiescent Current

MCLK = 12MHz

2.8

3.5

mA (max)

Analog Shutdown Current

Mode 0, No load

0.1

2.5

µA (max)

Analog Standby Current

Mode 1, No load

100

200

µA (max)

Analog Power Supply Quiescent

Current

No Load

Mode 2

7.8

mA (max)

Mode 3

5.3

mA (max)

Mode 4

8.6

mA (max)

Mode 5

8.4

mA (max)

Mode 6

6.0

mA (max)

Mode 7

9.2

mA (max)

Mode 8, 9, 10

10.1

mA (max)

Loudspeaker Amplifier

Full-Scale Output Voltage

Loudspeaker Amplifier)

Ω load, 0dB gain setting

2.6

P-P

THD+N

Total Harmonic Distortion + Noise

OUT = 1kHz, POUT = 200mW

0.4

OLS

Loudspeaker Amplifier Output

Power

THD = 1% (max), f

OUT = 1kHz

470

350

mW (min)

PSRR

Power Supply Rejection Ratio

(Loudspeaker Amplifier)

B = 1.0µF

RIPPLE = 200mVP-P

RIPPLE = 217Hz

Signal = V

O at 0dBFS, f = 1kHz,

Noise = digital zero, A-weighted,

0dB gain setting (Note 10)

SNR (Voice)

Signal-to-Noise Ratio of Voice

Channel (Loudspeaker Amplifier)

MCLK = 12.288MHz, PLL disabled

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