Datasheet
Maxim Integrated
│
17
MAX98090 Ultra-Low Power Stereo Audio Codec
www.maximintegrated.com
Electrical 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 (R
HP
) 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
Output Offset Voltage V
OS
A
V_SPKPGA
= -62dB, T
A
= +25°C ±0.5 ±4 mV
Click-and-Pop Level K
CP
Peak voltage,
A-weighted,
32 samples
per second,
A
V_SPK
= 0dB
Into shutdown -65
dBV
Out of shutdown -65
DAC PLAYBACK PATH TO HEADPHONE AMPLIFIER PATH
Dynamic Range (Note 5) DR
f
S
= 48kHz,
f
MCLK
=
12.288MHz
Master or slave
mode
102
dB
Slave mode 94
Total Harmonic Distortion + Noise THD+N
f = 1kHz, P
OUT
=
10mW
R
HP
= 16W -86 -77
dBR
HP
= 32W -88
f = 1kHz, V
OUT
= 1V
RMS
, R
HP
= 10kW -88
Crosstalk
f = 1kHz, V
IN
= -1dBFS, R
HP
= 10kW -105 dB
HPL to HPR and HPR to HPL,
P
OUT
= 5mW, f = 1kHz, R
HP
= 32W
-104 dB
Power-Supply Rejection Ratio
(Note 3)
PSRR
V
AVDD
= V
HPVDD
= 1.65V to 2.0V 70 80
dB
V
RIPPLE
= 100mV
P-P
,
A
V_HP
= 0dB
f = 217Hz 79
f = 1kHz 79
f = 10kHz 74
DAC Path Phase Delay
1kHz, 0dB input,
highpass lter disabled
measured from digital
input to analog output
MODE = 0 (voice)
8kHz
2.2
ms
MODE = 0 (voice)
16kHz
1.1
MODE = 1
(music) 8kHz
4.5
MODE = 1
(music) 48kHz
0.76
Gain Error 1 5 %
Channel Gain Mismatch 1 %
SINGLE-ENDED ANALOG INPUT TO HEADPHONE AMPLIFIER PATH
Dynamic Range (Note 5) A
V_LINE
= 0dB A
V_HPPGA
= 0 dB 101 dB
Total Harmonic Distortion + Noise THD+N V
IN
= 250mV
RMS
, f =1kHz -80 dB
Crosstalk
HPL to HPR and HPR to HPL,
P
OUT
= 5mW, f = 1kHz, R
HP
= 32W
-94 dB