Electrical Characteristics V

The following specifications apply for V

Ω unless otherwise specified. Limits apply for T

25˚C.

Symbol

Parameter

Conditions

LM4951

Units

(Limits)

Typical

(Note 6)

Limit

(Notes 7, 8)

P

O

Output Power

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

R

Ω Mono BTL

280

230

W (min)

THD+N

Total Harmomic Distortion + Noise1 P

A

0.07

0.5

% (max)

THD+N

Total Harmomic Distortion + Noise1 P

A

0.35

%

e

OS

Output Noise

A-Weighted Filter, R

Ω

Input Referred, Note 10

10

µV

PSRR

Power Supply Rejection Ratio

V

C

71

61

dB (min)

Note 1: All voltages are measured with respect to the GND pin, unless otherwise specified.

Note 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 guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which

guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit

is given, however, the typical value is a good indication of device performance.

Note 4: Human body model, 100pF discharged through a 1.5k

Ω resistor.

Note 5: Machine Model, 220pF–240pF discharged through all pins.

Note 6: Typicals are measured at 25˚C and represent the parametric norm.

Note 7: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).

Note 8: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.

Note 9: 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.

Note 10: Noise measurements are dependent on the absolute values of the closed loop gain setting resistors (input and feedback resistors).

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