Datasheet

MAX98090 Ultra-Low Power Stereo Audio Codec
Maxim Integrated │ 54
www.maximintegrated.com
Typical Operating 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
) con-
nected 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)
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10 100 1,000 10,000 100,000
THD+N RATIO (dB)
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY (DAC TO SPEAKER)
P
OUT
= 0.6W
MAX98090 toc97
V
SPKVDD
= 3.7V
f
MCLK
= 12.288MHz
f
LRCLK
= 48kHz
A
V_SPKPGA
= +8dB
Z
SPK
= 8Ω + 68µH
TQFN PACKAGE
P
OUT
= 0.15W
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10 100 1,000 10,000 100,000
THD+N RATIO (dB)
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY (DAC TO SPEAKER)
P
OUT
= 1.8W
MAX98090 toc98
V
SPKVDD
= 5V
f
MCLK
= 12.288MHz
f
LRCLK
= 48kHz
A
V_SPKPGA
= +8dB
Z
SPK
= 4Ω + 68µH
TQFN PACKAGE
P
OUT
= 0.5W
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10 100 1,000 10,000 100,000
THD+N RATIO (dB)
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY (DAC TO SPEAKER)
P
OUT
= 1.0W
MAX98090 toc100
V
SPKVDD
= 3.7V
f
MCLK
= 12.288MHz
f
LRCLK
= 48kHz
A
V_SPKPGA
= +8dB
Z
SPK
= 4Ω + 68µH
TQFN PACKAGE
P
OUT
= 0.3W
0
500
1000
1500
2000
2500
2.5 3.0 3.5 4.0 4.5 5.0 5.5
OUTPUT POWER PER CHANNEL (mW)
SUPPLY VOLTAGE (V)
OUTPUT POWER vs. SUPPLY VOLTAGE
(DAC TO SPEAKER)
THD+N = 1%
MAX98090 toc101
f
MCLK
= 12.288MHz
f
LRCLK
= 48kHz
A
V_SPKPGA
= +8dB
Z
SPK
= 8Ω + 68µH
WLP PACKAGE
THD+N = 10%
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10 100 1,000 10,000 100,000
THD+N RATIO (dB)
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY (DAC TO SPEAKER)
P
OUT
= 1.3W
MAX98090 toc99
V
SPKVDD
= 4.2V
f
MCLK
= 12.288MHz
f
LRCLK
= 48kHz
A
V_SPKPGA
= +8dB
Z
SPK
= 4Ω + 68µH
TQFN PACKAGE
P
OUT
= 0.4W
DAC PLAYBACK PATH INPUT TO SPEAKER OUTPUT (CONTINUED)
0
500
1000
1500
2000
2500
3000
3500
4000
4500
2.5 3.0 3.5 4.0 4.5 5.0 5.5
OUTPUT POWER PER CHANNEL (mW)
SUPPLY VOLTAGE (V)
OUTPUT POWER vs. SUPPLY VOLTAGE
(DAC TO SPEAKER)
THD+N = 1%
MAX98090 toc102
f
MCLK
= 12.288MHz
f
LRCLK
= 48kHz
A
V_SPKPG
A
= +8dB
Z
SPK
= 4Ω + 68µH
WLP PACKAGE
THD+N = 10%