Datasheet

Maxim Integrated │ 25
MAX98090 Ultra-Low Power Stereo Audio Codec
www.maximintegrated.com
Digital Input/Output Characteristics (continued)
(V
AVDD
= V
HPVDD
= V
DVDDIO
= 1.8V, V
DVDD
= 1.2V, V
SPKLVDD
= V
SPKRVDD
= V
SPKVDD
= 3.7V. Receiver load (R
RCV
) connected
between RCVP/LOUTL and RCVN/LOUTR (LINMOD = 0). Line output loads (R
LOUT
) connected between from RCVP/LOUTL and
RCVN/LOUTR to GND (LINMOD = 1). Headphone loads (RHP) connected from HPL or HPR to GND. Speaker loads (Z
SPK
) connected
between SPK_P and SPK_N. R
RCV
= J, R
LOUT
= J, R
HP
= J, Z
SPK
= J. C
REF
= 2.2µF, C
BIAS
= C
MICBIAS
= 1µF, C
C1N-C1P
=
C
CPVDD
= C
CPVSS
= 1µF. A
V_MICPRE_
= A
V_MICPGA_
= A
V_LINEPGA_
= 0dB, A
V_ADCLVL
= A
V_ADCGAIN
= 0dB, A
V_DACLVL
=
A
V_DACGAIN
= 0dB, A
V_MIXGAIN
= 0dB, A
V_RCV
= A
V_LOUT
= A
V_HP
= A
V_SPK
= 0dB. f
MCLK
= 12.288MHz, f
LRCLK
= 48kHz, MAS =
0, 20-bit source data. 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
DIGITAL MICROPHONE DATA (DMD) INPUT
Input High Voltage V
IH
0.65 x
V
DVDDIO
V
Input Low Voltage V
IL
0.35 x
V
DVDDIO
V
Input Hysteresis 100 mV
Input Leakage Current I
IH
, I
IL
V
DVDDIO
= 2.0V, T
A
= +25°C -25 +25 µA
Input Capacitance 10 pF
DIGITAL MICROPHONE CLOCK (DMC) OUTPUT
Output High Voltage V
OH
I
OH
= 3mA
V
AVDD
-
0.4
V
Output Low Voltage V
OL
I
OL
= 3mA 0.4 V