LM4949 datasheet(13/40 Pages) NSC

13 / 40 page

Electrical Characteristics V

DD = 5.0V (Notes 1, 2) The following specifications apply for AV = 0dB,

RL(SP) =15µH+8

Ω + 15µH, R

L(HP) =32

Ω, f = 1kHz unless otherwise specified. Limits apply for T

A = 25˚C. (Continued)

Note 1: All voltages are measured with respect to the ground 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 3: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX, θJA, and the ambient temperature TA. The maximum

allowable power dissipation is PDMAX =(TJMAX –TA)/ θJA or the number given in Absolute Maximum Ratings, whichever is lower. For the LM4949, see power

derating currents for additional information.

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.

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