Datasheet

Maxim Integrated │ 16
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
SPEAKER AMPLIFIER (Note 7)
Output Power P
OUT
f = 1kHz, THD+N
= 1%, Z
SPK
=
8W + 68µH, WLP
package
V
SPK_VDD
= 5.0V 1450
mW
V
SPK_VDD
= 4.2V 1000
V
SPK_VDD
= 3.7V 780
V
SPK_VDD
= 3.3V 600
V
SPK_VDD
= 3.0V 500
f = 1kHz, THD+N
= 10%, Z
SPK
=
8W + 68µH, WLP
package
V
SPK_VDD
= 5.0V 1800
V
SPK_VDD
= 4.2V 1250
V
SPK_VDD
= 3.7V 970
V
SPK_VDD
= 3.3V 760
V
SPK_VDD
= 3.0V 620
Output Power P
OUT
f = 1kHz, THD+N
= 1%, Z
SPK
=
4W + 33µH, WLP
package
V
SPK_VDD
= 5.0V 2600
mW
V
SPK_VDD
= 4.2V 1800
V
SPK_VDD
= 3.7V 1400
V
SPK_VDD
= 3.3V 1100
V
SPK_VDD
= 3.0V 900
f = 1kHz, THD+N
= 10%, Z
SPK
=
4W + 33µH, WLP
package
V
SPK_VDD
= 5.0V 3250
V
SPK_VDD
= 4.2V 2250
V
SPK_VDD
= 3.7V 1700
V
SPK_VDD
= 3.3V 1350
V
SPK_VDD
= 3.0V 1100
Full-Scale Output A
V_SPK
= +6dB (Note 8) 2 V
RMS
Speaker Output Amplier Gain A
V_SPKAMP
+6 dB
Speaker Volume Control (PGA) A
V_SPKPGA
(Notes 6 and 9)
SPVOLL = 0x00 -51 -48 -44.5
dB
SPVOLR = 0x1F 13 14 15
Volume Control Step Size
(Note 9)
14dB to 9dB 0.5
dB
+9dB to -6dB 1
-6dB to -14dB 2
-14dB to -32dB 3
-32dB to -48dB 4
Mute Attenuation f = 1kHz 76 84 dB