WM8993 datasheet(12/229 Pages) WOLFSON

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WM8993

Production Data

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

Analogue Input Pin Impedances (IN1LN, IN1LP, IN2LN, IN2LP, IN1RN, IN1RP, IN2RN, IN2RP)

PGA Input Resistance

Differential Mode

Note 4

See “Applications

Information” for details

of Input resistance at all

PGA Gain settings.

PGA Gain = -16.5dB

52.5

PGA Gain = 0dB

25.1

PGA Gain = +30dB

1.3

PGA Input Resistance

Single-Ended Mode

Note 4

See “Applications

Information” for details

of Input resistance at all

PGA Gain settings.

PGA Gain = -16.5dB

58.0

PGA Gain = 0dB

36.2

PGA Gain = +30dB

2.5

Line Input Resistance

Note 4

IN1LP or IN1RP to INMIXL

or INMIXR (-12dB)

56.0

IN1LP or IN1RP to INMIXL

or INMIXR (0dB)

17.4

IN1LP or IN1RP to INMIXL

or INMIXR (+6dB)

9.8

IN1LP to SPKMIXL or

IN1RP to SPKMIXR

(SPKATTN = -12dB)

88.5

IN1LP to SPKMIXL or

IN1RP to SPKMIXR

(SPKATTN = 0dB)

26.7

IN2LN, IN2RN, IN2LP or

IN2RP to MIXOUTL or

MIXOUTR

(-21dB)

150.9

IN2LN, IN2RN, IN2LP or

IN2RP to MIXOUTL or

MIXOUTR

(0dB)

18.2

VRXP-VRXN via RXVOICE

to MIXINL or MIXINR

(Gain = -12dB)

47.7

VRXP-VRXN via RXVOICE

to MIXINL or MIXINR

(Gain = 0dB)

12.0

VRXP-VRXN via RXVOICE

to MIXINL or MIXINR

(Gain = +6dB)

6.0

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