LM4906, LM4906LDBD, LM4906MMBD

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SNAS191D – MAY 2004 – REVISED JANUARY 2005

(1) (2)

LM4906

Units

Symbol

Parameter

Conditions

(Limits)

2.6

6

mA (max)

Quiescent Power Supply Current

3

7

mA (max)

Shutdown Current

0.1

2

µA (max)

Output Offset Voltage

7

35

mV (max)

THD+N = 1% (max); f = 1 kHz

Output Power

390

mW

Wake-up time

4

ms

THD+N

Total Harmonic Distortion+Noise

0.1

%

71 (f = 217Hz)

PSRR

Power Supply Rejection Ratio

Input terminated with 10

Ω

73 (f = 1kHz)

dB

Gain at 6dB

Shutdown Voltage Input High

SD Pin High = Part On

1.1

V (min)

Shutdown Voltage Input Low

SD Pin Low = Part Off

0.9

V (max)

(1)

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 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 ensured for parameters where no limit is given; however, the typical value is a good indication

of device performance.

(2)

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

(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.

External Components Description

Components

Functional Description

1.

Input coupling capacitor which blocks the DC voltage at the amplifiers input terminals. Also creates a highpass filter with

2.

Supply bypass capacitor which provides power supply filtering. Refer to the Power Supply Bypassing section for

information concerning proper placement and selection of the supply bypass capacitor.

Copyright © 2004–2005, Texas Instruments Incorporated

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