Datasheet

Maxim Integrated │ 14
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
Volume Control Step Size
(Note 9)
+8dB to +6dB 0.5
dB
+6dB to +0dB 1
0dB to -14dB 2
-14dB to -38dB 3
-38dB to -62dB 4
Mute Attenuation f = 1kHz 87 97 dB
Output Offset Voltage V
OS
A
V_REC
= -62dB, T
A
= +25°C ±3 mV
Click-and-Pop Level K
CP
Peak voltage,
A-weighted,
32 samples
per second,
A
V_REC
= 0dB
Into shutdown -67
dBV
Out of shutdown -68
Capacitive Drive Capability
No sustained
oscillations
R
L
= 32W 500
pF
R
L
= ∞ 100
DAC PLAYBACK PATH TO LINEOUT AMPLIFIER PATH
Dynamic Range (Note 5) DR f
S
= 48kHz, f
MCLK
= 12.288MHz 100 dB
Total Harmonic Distortion + Noise THD+N
f = 1kHz, R
LOUT
= 10kW
(0.5V
RMS
output level)
-86 -70 dB
SINGLE-ENDED ANALOG INPUT TO LINE OUT AMPLIFIER PATH
Dynamic Range (Note 5) DR 98 dB
Total Harmonic Distortion + Noise THD+N
f = 1kHz, R
LOUT
= 10kW
(0.5V
RMS
output level)
-86 dB
Power-Supply Rejection Ratio
(Note 3)
PSRR
V
SPK_VDD
= 2.8V to 5.5V 60 74
dB
V
RIPPLE
= 100mV
P-P
f = 217Hz 74
f = 1kHz 74
f = 10kHz
73
LINE OUT AMPLIFIER (Note 7)
Full-Scale Output (Note 8) 0.707 V
RMS
Line Output Amplier Gain A
V_LOUTAMP
-3 dB