MAX9888 데이터 시트보기 (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
CONDITIONS
MIN TYP MAX UNITS
VOICE MODE IIR HIGHPASS FILTER (MODE1 = 0)
AVFLT = 0x1 (elliptical tuned for
fs = 16kHz + 217Hz notch)
0.0161
x fs
AVFLT = 0x2 (500Hz Butterworth tuned for
fs = 16kHz)
0.0319
x fs
Passband Cutoff
(-3dB from Peak)
fAHPPB
AVFLT = 0x3 (elliptical tuned for
fs = 8kHz + 217Hz notch)
0.0321
x fs
Hz
AVFLT = 0x4 (500Hz Butterworth tuned for
fs = 8kHz)
0.0632
x fs
AVFLT = 0x5 (fs/240 Butterworth)
0.0043
x fs
AVFLT = 0x1 (elliptical tuned for
fs = 16kHz + 217Hz notch)
0.0139
x fs
AVFLT = 0x2 (500Hz Butterworth tuned for
fs = 16kHz)
0.0156
x fs
Stopband Cutoff
(-30dB from Peak)
fAHPSB
AVFLT = 0x3 (elliptical tuned for
fs = 8kHz + 217Hz notch)
0.0279
x fs
Hz
AVFLT = 0x4 (500Hz Butterworth tuned for fs = 0.0312
8kHz)
x fs
AVFLT = 0x5 (fs/240 Butterworth)
0.002
x fs
DC Attenuation
DCATTEN AVFLT ≠ 000
90
dB
STEREO AUDIO MODE FIR LOWPASS FILTER (MODE1 = 1, DHF1 = 0, LRCLK < 50kHz)
Ripple limit cutoff
0.43
x fs
Passband Cutoff
fPLP -3dB cutoff
0.48
x fs
Hz
-6.02dB cutoff
0.5
x fs
Passband Ripple
f < fPLP
-0.1
+0.1 dB
Stopband Cutoff
fSLP
0.58
x fs
Hz
Stopband Attenuation (Note 6)
f < fSLP
60
dB
ADC STEREO AUDIO MODE FIR LOWPASS FILTER (MODE1 = 1, DHF1 = 1, LRCLK > 50kHz)
Passband Cutoff
Ripple limit cutoff
fPLP
-3dB cutoff
0.208
x fs
Hz
0.28
x fs
10
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