WM8993 datasheet(21/229 Pages) WOLFSON

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Production Data

WM8993

PD, November 2010, Rev 4.0

Test Conditions

DCVDD = 1.2V, AVDD2 = DBVDD = CPVDD = 1.8V, AVDD1 = 3.0V, SPKVDD = 5V, DGND=AGND=CPGND=SPKGND=0V,

TA = +25

oC, 1kHz sinusoidal signal, fs = 48kHz, PGA gain = 0dB, 24-bit audio data unless otherwise stated.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VRXP-VRXN Direct Voice Path to Speaker Outputs (RL=8

Ω BTL)

SNR (A-weighted)

Class D Mode

SPK Boost=+12dB

THD (PO=0.5W)

-63

THD+N (PO=0.5W)

-62

THD (PO=1.0W)

-67

THD+N (PO=1.0W)

-65

PSRR (all supplies

217Hz)

-63

SNR (A-weighted)

Class AB Mode

SPK Boost=+12dB

104

THD (PO=0.5W)

-68

THD+N (PO=0.5W)

-65

THD (PO=1.0W)

-70

THD+N (PO=1.0W)

-68

PSRR (all supplies

217Hz)

-67

DC Offset at Load

Class AB Mode

SPK Boost=0dB

Line Input to Speaker Outputs via SPKMIXL or SPKMIXR (RL=8

Ω BTL)

SNR (A-weighted)

Class D Mode

SPK Boost =+12dB

THD (PO=0.5W)

-63

THD+N (PO=0.5W)

-62

THD (PO=1.0W)

-67

THD+N (PO=1.0W)

-65

PSRR (all other supplies

217Hz)

-47

SNR (A-weighted)

Class AB Mode

SPK Boost=+12dB

THD (PO=0.5W)

-68

-59

THD+N (PO=0.5W)

-65

-57

THD (PO=1.0W)

-70

THD+N (PO=1.0W)

-68

PSRR (all other supplies

217Hz)

-47

DC Offset at Load

Class AB Mode

SPK Boost=0dB

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