LM4947, LM4947TLEVAL

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SNAS349D – JUNE 2006 – REVISED MAY 2013

ELECTRICAL CHARACTERISTICS 5V

(1) (2)

The following specifications apply for VDD = 5V, TA = 25°C and all gains are set for 0dB unless otherwise specified.

Symbol

Parameter

Conditions

LM4947

Units

(Limits)

Typical(3)

Limits(4)

Output Modes 2, 4, 6

VIN = 0V; No load,

5.4

7.5

mA

OCL = 0 (Table 2)

IDDQ

Quiescent Supply Current

Output Modes 1, 3, 5, 7

VIN = 0V; No load, BTL,

7.6

12

mA

OCL = 0 (Table 2)

ISD

Shutdown Current

Output Mode 0

0.1

1

µA (max)

VIN = 0V, Mode 7, Mono

2

15

mV

(max)

VOS

Output Offset Voltage

VIN = 0V, Mode 7, Headphones

2

15

mV

(max)

MONOOUT; RL = 8Ω

1.19

W

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

PO

Output Power

ROUT and LOUT; RL = 32Ω

87

mW

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

MONOOUT

f = 1kHz, POUT = 500mW;

0.04

%

RL = 8Ω, BTL, Mode 1

THD+N

Total Harmonic Distortion + Noise

ROUT and LOUT

f = 1kHz, POUT = 30mW;

0.01

%

RL = 32Ω, SE, Mode 4

A-weighted, 0dB

inputs terminated, output referred

Speaker; Mode 1

38

μV

Speaker; Mode 3

38

μV

Speaker; Mode 5

39

μV

Speaker; Mode 7

36

μV

NOUT

Output Noise

Headphone; SE, Mode 2

21

μV

Headphone; SE, Mode 4

21

μV

Headphone; SE, Mode 6

24

μV

Headphone; OCL, Mode 2

16

μV

Headphone; OCL, Mode 4

16

μV

Headphone; OCL, Mode 6

19

μV

(1)

Operating Ratings indicate conditions for which the device is functional, but do not ensure specific performance limits. For ensured

specifications and test conditions, see the Electrical Characteristics. The ensured specifications apply only for the test conditions listed.

Some performance characteristics may degrade when the device is not operated under the listed test conditions.

(2)

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

(3)

Typical specifications are specified at +25°C and represent the most likely parametric norm.

(4)

Tested limits are specified to AOQL (Average Outgoing Quality Level).

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