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

ADC STEREO AUDIO MODE DC BLOCKING HIGHPASS FILTER (MODE1 = 1)

Passband Cutoff

(-3dB from Peak)

fAHPPB AVFLT ≠ 000

DC Attenuation

DCAtten AVFLT ≠ 000

MICROPHONE AUTOMATIC GAIN CONTROL

AGC Hold Duration

AGCHLD = 01

AGCHLD = 11

AGC Attack Time

AGCATK = 00

AGCATK = 11

AGC Release Time

AGCRLS = 000

AGCRLS = 111

AGC Threshold Level

AGCTH = 0x0 to 0xF

-3

AGC Threshold Step Size

AGC Gain

(Note 5)

0

ADC NOISE GATE

NG Threshold Level

ANTH = 0x3 to 0xF, referred to 0dBFS

-64

NG Attenuation

(Note 5)

0

ADC-TO-DAC DIGITAL SIDETONE (MODE = 0)

Sidetone Gain Adjust

Range

DVST = 0x01

AVSTGA DVST = 0x1F

Sidetone Gain Adjust Step

Size

Sidetone Path Phase Delay

1kHz, 0dB input, highpass filter 8kHz

disabled

16kHz

ADC-TO-DAC DIGITAL LOOP-THROUGH PATH

Dynamic Range (Note 4)

DR

fS = 48kHz, MCLK = 12.288MHz, MODE = 1

(FIR audio), MIC to HP output, TA = +25NC

83

Total Harmonic Distortion

+ Noise

THD+N

f = 1kHz, fS = 48kHz, MCLK = 12.288MHz, MODE

= 1 (FIR audio), MIC to HP output

DAC LEVEL CONTROL

DAC Attenuation Range AVDACATTN DV1DV2 = 0xF to 0x0 (Note 5)

-15

DAC Attenuation Step Size

DAC Gain Adjust Range AVDACGAIN DV1G = 00 to 11 (Note 5)

0

DAC Gain Adjust Step Size

TYP

MAX UNITS

0.000125

x fS

Hz

90

dB

50

400

2

123

0.078

10

1

ms

ms

s

+18 dB

dB

20

dB

-16 dB

12

dB

-0.5

dB

-60.5

2

dB

2.2

ms

1.1

93

dB

81

dB

0

dB

1

dB

18

dB

6

dB

11

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