Datasheet

MAX9860
16-Bit Mono Audio Voice Codec
3
Maxim Integrated
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
f = 1kHz, V
RIPPLE
= 100mV
P-P
,
A
VPGA
= 0dB
94
Power-Supply Rejection Ratio PSRR
f = 10kHz, V
RIPPLE
= 100mV
P-P
,
A
VPGA
= 0dB
71
dB
DAC LOWPASS DIGITAL FILTER
With respect to f
S
within ripple; f
S
= 8kHz
to 48kHz
0.448 x
f
S
Hz
Passband Cutoff f
PLP
-3dB cutoff 0.451 f
S
Passband Ripple f < f
PLP
±0.1 dB
Stopband Cutoff f
SLP
With respect to f
S
; f
S
= 8kHz to 48kHz
0.476 x
f
S
Hz
Stopband Attenuation f > f
SLP
, f = 20Hz to 20kHz 75 dB
DAC HIGHPASS DIGITAL FILTER
DVFLT = 0x1
(elliptical for 16kHz GSM)
0.0161
x f
S
DVFLT = 0x2
(500Hz Butterworth for 16kHz)
0.0312
x f
S
DVFLT = 0x3
(elliptical for 8kHz GSM)
0.0321
x f
S
DVFLT = 0x4
(500Hz Butterworth for 8kHz)
0.0625
x f
S
5th Order Passband Cutoff
(-3dB from Peak, I
2
C Register
Programmable) (Note 6)
f
DHPPB
DVFLT = 0x5
(200Hz Butterworth for 48kHz)
0.0042
x f
S
Hz
DVFLT = 0x1
(elliptical for 16kHz GSM)
0.0139
x f
S
DVFLT = 0x2
(500Hz Butterworth for 16kHz)
0.0156
x f
S
DVFLT = 0x3
(elliptical for 8kHz GSM)
0.0279
x f
S
DVFLT = 0x4
(500Hz Butterworth for 8kHz)
0.0312
x f
S
5th Order Stopband Cutoff
(-30dB from Peak, I
2
C Register
Programmable) (Note 6)
f
DHPSB
DVFLT = 0x5
(200Hz Butterworth for 48kHz)
0.0021
x f
S
Hz
DC Blocking DC
Atten
DVFLT ≠ 0x0 90 dB
ADC
Full-Scale Input Voltage 0dBFS
Differential MIC Input, A
VPRE
= 0dB,
A
VPGA
= 0dB
1V
P-P
Channel Gain Mismatch ±0.3 %
ELECTRICAL CHARACTERISTICS (continued)
(V
AVDD
= V
DVDD
= V
DVDDIO
= +1.8V, R
L
= ∞, headphone load (R
L
) connected between OUTP and OUTN, C
REF
= 2.2µF, C
MICBIAS
=
C
PREG
= C
REG
= 1µF, A
VPRE
= +20dB, A
VMICPGA
= 0dB, f
MCLK
= 13MHz, f
LRCLK
= 8kHz, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Typical values are at T
A
= +25°C.) (Note 2)