MAX98088 Просмотр технического описания (PDF) - Unspecified

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MAX98088

Stereo Audio Codec with FLEXSOUND Technology

Unspecified 

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

MICROPHONE BIAS

MICBIAS Output Voltage VMICBIAS ILOAD = 1mA

Load Regulation

ILOAD = 1mA to 2mA

Line Regulation

VSPKLVDD = 2.8V to 5.5V

Ripple Rejection

f = 217Hz, VRIPPLE (SPKLVDD) = 100mVP-P

f = 10kHz, VRIPPLE (SPKLVDD) = 100mVP-P

A-weighted, f = 20Hz to 20kHz

Noise Voltage

P-weighted, f = 20Hz to 4kHz

f = 1kHz

MICROPHONE BYPASS SWITCH

On-Resistance

RON

IMIC1_ = 100mA, INABYP = MIC2BYP = 1,

VMIC2_ = VINA_ = 0V, AVDD, TA = +25NC

Total Harmonic Distortion

+ Noise

THD+N

VIN = 2VP-P, VCM = 0.9V, RL = 10kI,

f = 1kHz, INABYP = MIC2BYP = 1

Off-Isolation

Off-Leakage Current

VIN = 2VP-P, VCM = 0.9V, RL = 10kI, f = 1kHz

VMIC1_ = [0V, AVDD], VMIC2_/VINA_ =

[AVDD, 0V]

LINE INPUT TO ADC PATH

Dynamic Range (Note 4)

DR

INA pin direct, fS = 48kHz, MODE = 1

(FIR audio)

Total Harmonic Distortion

+ Noise

THD+N VIN = 1VP-P, f = 1kHz

Gain Error

DC accuracy

VAVDD = 1.65V to 1.95V, input referred,

line inputs floating

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

MIN

TYP

MAX UNITS

2.15

2.2

2.25 V

0.5

4.5 mV

110

FV

92

dB

83

3.9

2.1

FVRMS

50

nV/√Hz

5

30

I

-80

dB

60

dB

-1

+1

FA

93

dB

82

74

dB

1

%

57

68

72

dB

70

60

8

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