Electrical Characteristics V

The following specifications apply for V

Ω unless otherwise specified. Limits apply to T

25˚C. See Figure 1.

Symbol

Parameter

Conditions

LM4953

Units (Limits)

Typ

(Note 6)

Limit

(Notes 7, 8)

V

SDIL

Shutdown Voltage Input Low

SD1

SD2

0.3*CPVdd

V (max)

T

WU

Wake-up Time

125

µsec

V

OS

Output Offset Voltage

1

10

mV (max)

V

OUT

Output Voltage Swing

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

Z

Ω, Mono BTL

10.2

Vpp

THD+N

Total Harmonic Distortion +

Noise

V

0.02

%

∈

OS

Output Noise

A-Weighted Filter, V

15

µV

PSRR

Power Supply Rejection

Ratio

V

Input Referred

73

dB

V

Input Referred

68

dB

SNR

Signal-to-Noise Ratio

Z

Ω,V

105

dB

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 that

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.

be curtailed or the part may be permanently damaged.

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