Datasheet

MAX9860
16-Bit Mono Audio Voice Codec
5
Maxim Integrated
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)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
AVFLT = 0x1
(elliptical for 16kHz GSM)
0.0139
x f
S
AVFLT = 0x2
(500Hz Butterworth for 16kHz)
0.0156
x f
S
AVFLT = 0x3
(elliptical for 8kHz GSM)
0.0279
x f
S
AVFLT = 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
AHPSB
AVFLT = 0x5
(200Hz Butterworth for 48kHz)
0.0021
x f
S
Hz
DC Blocking DC
ATTEN
AVFLT ≠ 0x0 90 dB
CLOCKING
MCLK Input Frequency
MCLK is not required to be synchronous
or related to the desired LRCLK data rate
10 60 MHz
MCLK Duty Cycle 40 50 60 %
Maximum MCLK Input Jitter For guaranteed performance limits 100 ps
RMS
LRCLK Data Rate Frequency 8 48 kHz
LRCLK PLL Lock Time 12 25 ms
LRCLK Acceptable Jitter for
Maintaining PLL Lock
±20 ns
MONO HEADPHONE AMPLIFIER
R
L
= 16Ω 30 50
Output Power P
OUT
f = 1kHz, THD+N ≤ 1%
T
A
= +25°C
R
L
= 32Ω 33
mW
R
L
= 32Ω, P
OUT
= 25mW, f = 1kHz 0.05
Total Harmonic Distortion + Noise THD+N
R
L
= 16Ω, P
OUT
= 25mW, f = 1kHz 0.08
%
Dynamic Range (Note 5) DR
+0dB volume setting, DAC input at
f
S
= 8kHz to 48kHz
90 dB
V
AVDD
= 1.7V to 1.9V 60 84
V
RIPPLE
= 100mV
P-P
, f = 217Hz 86Power-Supply Rejection Ratio PSRR
V
RIPPLE
= 100mV
P-P
, f = 20kHz 71
dB
Output Offset Voltage V
OS
V
OUTP
- V
OUTN,
T
A
=+25°C ± 3.5 mV
R
L
= 32Ω 500
Capacitive Drive Capability No sustained oscillations
R
L
= ∞ 100
pF
Click-and-Pop Level
Peak voltage into/out of shutdown, 32sps,
A-weighted
-70 dBV