CS42L56 View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CS42L56

Ultralow Power, Stereo Codec with Class H Headphone Amp

Cirrus Logic 

CS42L56

ANALOG OUTPUT ATTENUATION CHARACTERISTICS

Test Conditions (unless otherwise specified): Connections to the CS42L56 are shown in the “Typical Connection Diagrams” on

page 11; GND = AGND = 0 V. Attenuation is referenced to the full-scale voltage for the given output. Test load RL = 3 k

CL = 150 pFfor a line load, and test load RL = 16  CL = 150 pF for a headphone load (See Figure 6 and Figure 7 on page 21).

Power Status

Parameters

Headphone Line

Min

Typ

Max Units

OFF

OFF

-

90

-

dB

Headphone Mute Attenuation (HPxMUTE=1) (Note 26)

OFF

ON

ON

OFF

-

-

90

90

-

dB

-

dB

ON

ON

-

90

-

dB

Line Mute Attenuation (LINExMUTE=1) (Note 26)

OFF

OFF

-

90

-

dB

OFF

ON

-

90

-

dB

ON

OFF

-

90

-

dB

ON

ON

-

90

-

dB

Notes:

26. Assumes no external impedance on HPREF or LINEREF. External impedance on HPREF or LINEREF

will impact the attenuation.

DS851F2

25

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