MAX98088 Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Fabricante
MAX98088 Datasheet PDF : 123 Pages
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MAX98088
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 or LOUTR to SPKLGND. 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 = TMIN to TMAX, unless otherwise noted. Typical values are at +25NC.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
MICROPHONE TO ADC PATH
Dynamic Range
DR
fS = 8kHz, MODE = 0 (IIR voice), AVMICPRE_ = 0dB
(Note 4)
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
Common-Mode Rejection
Ratio
CMRR VIN = 100mVP-P, f = 217Hz
TYP MAX UNITS
88
dB
-78
-85
dB
-71
74
dB
VAVDD = 1.65V to 1.95V, input referred,
MIC inputs floating
50
62
Power-Supply Rejection Ratio
PSRR
f = 217Hz, VRIPPLE = 200mVP-P, input referred
f = 1kHz, VRIPPLE = 200mVP-P, input referred
f = 10kHz, VRIPPLE = 200mVP-P, input referred
62
dB
62
53
MODE = 0 (IIR voice)
8kHz
2.2
Path Phase Delay
1kHz, 0dB input,
highpass filter disabled
measured from analog
input to digital output
MODE = 0 (IIR voice)
16kHz
MODE = 1 (FIR audio)
8kHz
1.1
ms
4.5
MICROPHONE PREAMP
Full-Scale Input
Preamplifier Gain
PGA Gain
MIC Input Resistance
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
0.76
1.05
VP-P
0
19.5 20 20.5 dB
29.5 30 30.5
19
20
21
dB
0
50
kI
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