Datasheet

MAX98090 Ultra-Low Power Stereo Audio Codec
Maxim Integrated │ 53
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)
MAX98090 toc91
FREQUENCY (Hz)
THD+N RATIO (dB)
10k1k10010 100k
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
P
OUT
= 0.60W
P
OUT
= 0.15W
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (DAC TO SPEAKER)
V
SPK_VDD
= 3.7V
f
MCLK
= 12.288MHz
f
LRCLK
= 48kHz
A
V_SPKPGA
= +8dB
Z
SPK
= 8I + 68µH
WLP PACKAGE
MAX98090 toc92
FREQUENCY (Hz)
THD+N RATIO (dB)
10k1k10010 100k
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
P
OUT
= 2.00W
P
OUT
= 0.50W
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (DAC TO SPEAKER)
V
SPK_VDD
= 5V
f
MCLK
= 12.288MHz
f
LRCLK
= 48kHz
A
V_SPKPGA
= +8dB
Z
SPK
= 4I + 33µH
WLP PACKAGE
10k1k10010 100k
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY (DAC TO SPEAKER)
MAX98090 toc94
FREQUENCY (Hz)
THD+N RATIO (dB)
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
V
SPK_VDD
= 3.7V
f
MCLK
= 12.288MHz
f
LRCLK
= 48kHz
A
V_SPKPGA
= +8dB
Z
SPK
= 4I + 33µH
WLP PACKAGE
P
OUT
= 1.20W
P
OUT
= 0.30W
-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
= 1.00W
MAX98090 toc95
V
SPKVDD
= 5V
f
MCLK
= 12.288MHz
f
LRCLK
= 48kHz
A
V_SPKPGA
= +8dB
Z
SPK
= 8Ω + 68µH
TQFN PACKAGE
P
OUT
= 0.25W
10k1k10010 100k
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY (DAC TO SPEAKER)
MAX98090 toc93
FREQUENCY (Hz)
THD+N RATIO (dB)
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
V
SPK_VDD
= 4.2V
f
MCLK
= 12.288MHz
f
LRCLK
= 48kHz
A
V_SPKPGA
= +8dB
Z
SPK
= 4I + 33µH
WLP PACKAGE
P
OUT
= 1.50W
P
OUT
= 0.40W
DAC PLAYBACK PATH INPUT TO SPEAKER OUTPUT (CONTINUED)
-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
= 0.76W
MAX98090 toc96
V
SPKVDD
= 4.2V
f
MCLK
= 12.288MHz
f
LRCLK
= 48kHz
A
V_SPKPGA
= +8dB
Z
SPK
= 8Ω + 68µH
TQFN PACKAGE
P
OUT
= 0.2W