MAX9888 Просмотр технического описания (PDF) - Maxim Integrated
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MAX9888 Datasheet PDF : 115 Pages
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Stereo Audio CODEC
with FLEXSOUND Technology
ELECTRICAL CHARACTERISTICS (continued)
(VAVDD = VHPVDD = 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 GND. RHP = J, RREC = J, ZSPK = J, CREF = 2.2FF, CMICBIAS = CPREG = CREG = 1FF, CC1N-C1P = 1FF, CHPVSS
= 1FF. AVMICPRE_ = +20dB, AVMICPGA_ = 0dB, AVDACATTN = 0dB, AVDACGAIN = 0dB, AVADCLVL = 0dB, AVADCGAIN = 0dB,
AVPGAIN_ = 0dB, AVPGAOUT_ = 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 TA = +25NC.) (Note 1)
PARAMETER
SYMBOL
Shutdown Supply Current
(Note 2)
TA = +25NC
REF Voltage
PREG Voltage
REG Voltage
Shutdown to Full Operation
MICROPHONE TO ADC PATH
SLEW = 0
SLEW = 1
CONDITIONS
Analog
Speaker
Digital
MIN TYP MAX UNITS
0.2
2
0.1
1
FA
1
5
2.5
V
1.6
V
0.7
V
30
ms
17
Dynamic Range (Note 4)
DR
fS = 8kHz, MODE = 0 (IIR voice),
AVMICPRE_ = 0dB
75
88
dB
Total Harmonic Distortion +
Noise
THD+N
VIN = 0.1VP-P, MCLK = 12.288MHz,
fS = 8kHz, f = 1kHz
AVMICPRE_ = 0dB, VIN = 1VP-P, f = 1kHz
AVMICPRE_ = +30dB, VIN = 32mVP-P,
f = 1kHz
-77
-65
-82
dB
-71
Common-Mode Rejection Ratio CMRR VIN = 100mVP-P, f = 217Hz
65
dB
VAVDD = 1.65V to 2.0V, input referred, MIC
inputs floating
60
100
f = 217Hz, VRIPPLE = 100mVP-P, AVADC = 0dB,
input referred
100
Power-Supply Rejection Ratio
PSRR
dB
f = 1kHz, VRIPPLE = 100mVP-P, AVADC = 0dB,
input referred
91
f = 10kHz, VRIPPLE = 100mVP-P, AVADC = 0dB,
input referred
70
Path Phase Delay
MODE = 0 (IIR voice)
8kHz
1kHz, 0dB input, MODE = 0 (IIR voice)
highpass filter
16kHz
disabled measured
from analog input to MODE = 1 (FIR audio)
digital output
8kHz
MODE = 1 (FIR audio)
48kHz
2.2
1.1
ms
4.5
0.76
7
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