LM4947 datasheet(6/32 Pages) NSC

6 / 32 page

Electrical Characteristics 5V (Notes 2, 7)

The following specifications apply for V

DD = 5V, TA = 25˚C and all gains are set for 0dB unless otherwise specified.

Symbol

Parameter

Conditions

LM4947

Units

(Limits)

Typical

(Note 4)

Limits

(Note 5)

DDQ

Quiescent Supply Current

Output Modes 2, 4, 6

IN = 0V; No load,

OCL = 0 (Table 2)

5.4

7.5

Output Modes 1, 3, 5, 7

IN = 0V; No load, BTL,

OCL = 0 (Table 2)

7.6

Shutdown Current

Output Mode 0

0.1

µA (max)

Output Offset Voltage

IN = 0V, Mode 7, Mono

mV (max)

IN = 0V, Mode 7, Headphones

Output Power

MONO

OUT;RL =8

Ω

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

1.19

OUT and LOUT;RL =32

Ω

THD+N = 1%; f = 1kHz, SE, Mode 4

THD+N

Total Harmonic Distortion + Noise

MONO

OUT

f = 1kHz, P

OUT = 500mW;

L =8

Ω, BTL, Mode 1

0.04

OUT and LOUT

f = 1kHz, P

OUT = 30mW;

L =32

Ω, SE, Mode 4

0.01

OUT

Output Noise

A-weighted, 0dB

inputs terminated, output referred

Speaker; Mode 1

µV

Speaker; Mode 3

µV

Speaker; Mode 5

µV

Speaker; Mode 7

µV

Headphone; SE, Mode 2

µV

Headphone; SE, Mode 4

µV

Headphone; SE, Mode 6

µV

Headphone; OCL, Mode 2

µV

Headphone; OCL, Mode 4

µV

Headphone; OCL, Mode 6

µV

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