The following specifications apply for V

Symbol

Parameter

Conditions

LM4756

Units

(Limits)

Typical

(Note 8)

Limit

(Note 9)

SNR

Signal-to-Noise Ratio

Measured at 1 kHz, R

Ω

P

70

dB

Standby

V

IL

Standby Low Input Voltage

0.8

V (max)

V

IH

Standby High Input Voltage

2.0

V (min)

Mute

V

IL

Mute Low Input Voltage

0.8

V (max)

V

IH

Mute High Input Voltage

2.0

V (min)

Note 1: DC Electrical Test.

Note 2: AC Electrical Test.

Note 3: 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: All voltages are measured with respect to the ground (pin 8), unless otherwise specified.

temperatures above 25˚C, the device must be derated based on a 150˚C maximum junction temperature and a thermal resistance of

case).

Note 6: Human body model, 100pF discharged through a 1.5k

Ω resistor.

Note 7: Machine model, 200pF–240pF discharge through all pins.

Note 8: Typicals are measured at 25˚C and represent the parametric norm.

Note 9: Tested limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).

Note 10: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.

Standby Mute Pin Function Table

Standby (Pin 9)

Mute (Pin 10)

Operating Condition

“L” or Open

“L”

Play

“L” or Open

“H” or Open

Mute

“H”

“L”

Standby

“H”

“H” or Open

Standby

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