MAX98088(2010) データシートの表示（PDF） - Maxim Integrated

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MAX98088
(Rev.:2010)

Stereo Audio Codec with FLEXSOUND Technology

Maxim Integrated 

Stereo Audio Codec

with FLEXSOUND Technology

ELECTRICAL CHARACTERISTICS (continued)

(VAVDD = VPVDD = VDVDD = VDVDDS1 = VDVDDS2 = +1.8V, VSPKLVDD = VSPKRVDD = 3.7V. Speaker loads (ZSPK) connected

between SPK_P and SPK_N. Receiver load (RREC) connected between RECP and RECN. Headphone loads (RHP) connected from

HPL or HPR to HPGND. Line out loads (RLOAD) connected from LOUTL and LOUTR to ground. RLOAD = RHP = J, RREC = J, ZSPK

= J, CREF = 2.2FF, CMICBIAS = CREG = 1FF, CC1N-C1P = 1FF, CHPVDD = CHPVSS = 1FF. AVMICPRE_ = +20dB, AVMICPGA_ = 0dB,

AVDACATTN = 0dB, AVDACGAIN = 0dB, AVADCLVL = 0dB, AVADCGAIN = 0dB, AVPGAIN_ = 0dB, AVHP_ = 0dB, AVREC = 0dB, AVSPK_

= 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS = 1. TA = +25NC, unless otherwise noted.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX UNITS

MICROPHONE TO ADC PATH

Dynamic Range

DR

fS = 8kHz, MODE = 0 (IIR voice), AVMICPRE_ =

0dB (Note 4)

88

dB

Total Harmonic Distortion

+ Noise

THD+N

VIN = 0.1VP-P, fS = 8kHz, f = 1kHz

AVMICPRE_ = 0dB, VIN = 1VP-P, f = 1kHz

AVMICPRE_ = +30dB, VIN = 32mVP-P, f = 1kHz

-77

-84

dB

-70

Common-Mode Rejection

Ratio

CMRR VIN = 100mVP-P, f = 217Hz

62

dB

VAVDD = 1.65V to 1.95V, input referred,

MIC inputs floating

50

62

Power-Supply Rejection

Ratio

PSRR

f = 217Hz, VRIPPLE = 100mVP-P,

AVADC = 0dB, input referred

f = 1kHz, VRIPPLE = 100mVP-P,

AVADC = 0dB, input referred

f = 10kHz, VRIPPLE = 100mVP-P,

AVADC = 0dB, input referred

62

dB

62

53

MODE = 0 (IIR voice) 8kHz

2.2

Path Phase Delay

MICROPHONE PREAMP

Full-Scale Input

Preamplifier Gain

PGA Gain

MIC Input Resistance

1kHz, 0dB input, high- MODE = 0 (IIR voice)

pass filter disabled 16kHz

measured from analog MODE = 1 (FIR audio)

input to digital output 8kHz

MODE = 1 (FIR audio)

48kHz

AVMICPRE_ = 0dB

PA1EN/PA2EN = 01

AVMICPRE_ (Note 5)

PA1EN/PA2EN = 10

PA1EN/PA2EN = 11

AVMICPGA_ (Note 5)

PGAM1/PGAM2 = 0x00

PGAM1/PGAM2 = 0x14

RIN_MIC

All gain settings, measured at MIC1P/

MIC1N/MIC2P/MIC2N

19.5

29.5

19

1.1

4.5

0.76

1.05

0

20

30

20

0

50

ms

VP-P

20.5 dB

30.5

21

dB

kI

7

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