MAX9860
16-Bit Mono Audio Voice Codec
3
Maxim Integrated
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
f = 1kHz, VRIPPLE = 100mVP-P,
AVPGA = 0dB
94
Power-Supply Rejection Ratio
PSRR
f = 10kHz, VRIPPLE = 100mVP-P,
AVPGA = 0dB
71
dB
DAC LOWPASS DIGITAL FILTER
With respect to fS within ripple; fS = 8kHz
to 48kHz
0.448 x
fS
Hz
Passband Cutoff
fPLP
-3dB cutoff
0.451
fS
Passband Ripple
f < fPLP
±0.1
dB
Stopband Cutoff
fSLP
With respect to fS; fS = 8kHz to 48kHz
0.476 x
fS
Hz
Stopband Attenuation
f > fSLP, f = 20Hz to 20kHz
75
dB
DAC HIGHPASS DIGITAL FILTER
DVFLT = 0x1
(elliptical for 16kHz GSM)
0.0161
x fS
DVFLT = 0x2
(500Hz Butterworth for 16kHz)
0.0312
x fS
DVFLT = 0x3
(elliptical for 8kHz GSM)
0.0321
x fS
DVFLT = 0x4
(500Hz Butterworth for 8kHz)
0.0625
x fS
5th Order Passband Cutoff
(-3dB from Peak, I2C Register
Programmable) (Note 6)
fDHPPB
DVFLT = 0x5
(200Hz Butterworth for 48kHz)
0.0042
x fS
Hz
DVFLT = 0x1
(elliptical for 16kHz GSM)
0.0139
x fS
DVFLT = 0x2
(500Hz Butterworth for 16kHz)
0.0156
x fS
DVFLT = 0x3
(elliptical for 8kHz GSM)
0.0279
x fS
DVFLT = 0x4
(500Hz Butterworth for 8kHz)
0.0312
x fS
5th Order Stopband Cutoff
(-30dB from Peak, I2C Register
Programmable) (Note 6)
fDHPSB
DVFLT = 0x5
(200Hz Butterworth for 48kHz)
0.0021
x fS
Hz
DC Blocking
DCAtten
DVFLT
≠ 0x0
90
dB
ADC
Full-Scale Input Voltage
0dBFS
Differential MIC Input, AVPRE = 0dB,
AVPGA = 0dB
1VP-P
Channel Gain Mismatch
±0.3
%
ELECTRICAL CHARACTERISTICS (continued)
(VAVDD = VDVDD = VDVDDIO = +1.8V, RL =
∞, headphone load (RL) connected between OUTP and OUTN, CREF = 2.2F, CMICBIAS =
CPREG = CREG = 1F, AVPRE = +20dB, AVMICPGA = 0dB, fMCLK = 13MHz, fLRCLK = 8kHz, TA = TMIN to TMAX, unless otherwise noted.
Typical values are at TA = +25°C.) (Note 2)