LM4950

SNAS174E – JULY 2003 – REVISED MAY 2013

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Electrical Characteristics VDD = 12V

(1) (2)

The following specifications apply for VDD = 12V, AV = 0dB (SE) or 6dB (BTL) unless otherwise specified. Limits apply for TA =

25°C.

Symbol

Parameter

Conditions

LM4950

Units

(Limits)

Typical(3)

Limit(4)(5)

IDD

Quiescent Power Supply Current

VIN = 0V, IO = 0A, No Load

16

30

mA (max)

ISD

Shutdown Current

VSHUTDOWN = GND

(6)

40

80

µA (max)

VOS

Offset Voltage

VIN = 0V, RL = 8Ω

5

30

mV (max)

VSDIH

Shutdown Voltage Input High

2.0

V (min)

VDD/2

V (max)

VSDIL

Shutdown Voltage Input Low

0.4

V (max)

TWU

Wake-up Time

CB = 10µF

440

ms

150

°C (min)

TSD

Thermal Shutdown Temperature

170

190

°C (max)

PO

Output Power

f = 1kHz

RL = 4Ω SE, Single Channel, THD+N

3.0

W (min)

= 1%

3.1

RL = 8Ω BTL, THD+N = 10%

7.5

PO = 2.5Wrms; f = 1kHz;

0.05

RL = 4Ω SE

THD+N

Total Harmomic Distortion + Noise

%

PO = 2.5Wrms; AV = 10; f = 1kHz; RL

0.14

= 4

Ω, SE

εOS

Output Noise

A-Weighted Filter, VIN = 0V,

10

µV

Input Referred

XTALK

Channel Separation

fIN = 1kHz, PO = 1W, SE Mode

RL = 8Ω

76

dB

RL = 4Ω

70

PSRR

Power Supply Rejection Ratio

VRIPPLE = 200mVp-p, f = 1kHz,

70

56

dB (min)

RL = 8Ω, BTL

IOL

Output Current Limit

VIN = 0V, RL = 500mΩ

5

A

(1)

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

(2)

Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for

which the device is functional, but do not ensure specific performance limits. Electrical Characteristics VDD = 12V state DC and AC

electrical specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within

the Operating Ratings. Specifications are not specified for parameters where no limit is given, however, the typical value is a good

indication of device performance.

(3)

Typicals are measured at 25°C and represent the parametric norm.

(4)

Limits are specified to AOQL (Average Outgoing Quality Level).

(5)

Datasheet min/max specification limits are specified by design, test, or statistical analysis.

(6)

Shutdown current is measured in a normal room environment. The Shutdown pin should be driven as close as possible to GND for

minimum shutdown current.

4

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