WM5102 datasheet(24/334 Pages) WOLFSON

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WM5102

Production Data

PD, June 2014, Rev 4.2

Test Conditions

DBVDD1 = DBVDD2 = DBVDD3 = LDOVDD = CPVDD = AVDD = 1.8V,

DCVDD = 1.2V (powered from LDO1), MICVDD = 3.0V (powered from LDO2), SPKVDDL = SPKVDDR = 4.2V,

TA = +25ºC, 1kHz sinusoid signal, fs = 48kHz, Input PGA gain = 0dB, 24-bit audio data unless otherwise stated.

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Microphone Bias (MICBIAS1, MICBIAS2, MICBIAS3)

Note - No capacitor on MICBIASn

Note - In regulator mode, it is required that VMICVDD - VMICBIASn > 200mV

Minimum Bias Voltage

VMICBIAS

Regulator mode

(MICBn_BYPASS=0)

Load current ≤ 1.0mA

1.5

Maximum Bias Voltage

2.8

Bias Voltage output step size

0.1

Bias Voltage accuracy

-5%

+5%

Bias Current

Regulator mode

(MICBn_BYPASS=0),

VMICVDD - VMICBIAS >200mV

2.4

Bypass mode

(MICBn_BYPASS=1)

5.0

Output Noise Density

Regulator mode

(MICBn_BYPASS=0),

MICBn_LVL = 4h,

Load current = 1mA,

Measured at 1kHz

nV/

Hz

Integrated noise voltage

Regulator mode

(MICBn_BYPASS=0),

MICBn_LVL = 4h,

Load current = 1mA,

100Hz to 7kHz, A-weighted

µVrms

Power Supply Rejection Ratio

(DBVDDn, LDOVDD, CPVDD,

AVDD)

PSRR

100mV (peak-peak) 217Hz

100mV (peak-peak) 10kHz

Load capacitance

Regulator mode

(MICBn_BYPASS=0),

MICBn_EXT_CAP=0

Regulator mode

(MICBn_BYPASS=0),

MICBn_EXT_CAP=1

1.8

4.7

µF

Output discharge resistance

MICBn_ENA=0,

MICBn_DISCH=1

kΩ

External Accessory Detect

Load impedance detection range

(HPDETL or HPDETR)

HP_IMPEDANCE_

RANGE=00

Ω

HP_IMPEDANCE_

RANGE=01

1000

HP_IMPEDANCE_

RANGE=10

1000

10000

Load impedance detection

accuracy (HPDETL or HPDETR)

-30

+30

Load impedance detection range

(MICDET1 or MICDET2)

2.2kΩ (2%) MICBIAS resistor.

Note these characteristics assume

no other component is connected

to MICDETn. See “Applications

Information” for recommended

external components when a

typical microphone is present.

for MICD_LVL[0] = 1

Ω

for MICD_LVL[1] = 1

for MICD_LVL[2] = 1

for MICD_LVL[3] = 1

for MICD_LVL[4] = 1

115

160

for MICD_LVL[5] = 1

207

381

for MICD_LVL[8] = 1

475

30000

Jack Detection input threshold

voltage (JACKDET)

VJACKDET

Jack insertion

0.5 x AVDD

Jack removal

0.85 x AVDD

WM5102 Datasheet(PDF) 24 Page - Wolfson Microelectronics plc

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