Typical operating characteristics (continued) – Rainbow Electronics MAX98089 User Manual
Page 41
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MAX98089
Low-Power, Stereo Audio Codec
with FlexSound Technology
Typical Operating Characteristics (continued)
(V
AVDD
= V
PVDD
= V
DVDD
= V
DVDDS1
= V
DVDDS2
= 1.8V, V
SPKLVDD
= V
SPKRVDD
= 3.7V. Speaker loads (Z
SPK
) connected between
SPK_P and SPK_N. Receiver load (R
REC
) connected between RECP and RECN. Headphone loads (R
HP
) connected from HPL or HPR
to HPGND. Line out (R
LOUT
) connected from LOUTL or LOUTR to SPKLGND, C
REF
= 2.2FF, C
MICBIAS
= C
REG
= 1FF, C
C1N-C1P
=
1FF, C
HPVDD
= C
HPVSS
= 1FF. AV
MICPRE_
= +20dB, AV
MICPGA_
= 0dB, AV
DACATTN
= 0dB, AV
DACGAIN
= 0dB, AV
ADCLVL
= 0dB,
AV
ADCGAIN
= 0dB, AV
PGAIN_
= 0dB, AV
HP_
= 0dB, AV
REC
= 0dB, AV
SPK_
= 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS = 1. T
A
= +25NC, unless otherwise noted.)
FREQUENCY (Hz)
10k
1k
100
10
100k
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (DAC TO SPEAKER)
MAX98089 toc64
THD+N RATIO (dB)
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
Z
SPK_
= 4I + 33µH
AV
SPK_
= +8dB
P
OUT
= 0.25W
P
OUT
= 0.55W
OUTPUT POWER vs. SUPPLY VOLTAGE
(DAC TO SPEAKER)
MAX98089 toc65a
SUPPLY VOLTAGE (V)
OUTPUT POWER PER CHANNEL (mW)
5.0
4.5
4.0
3.5
3.0
500
1000
1500
2000
2500
0
2.5
5.5
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
Z
SPK_
= 8I + 68µH
AV
SPK_
= +8dB
TQFN PACKAGE
THD+N = 10%
THD+N = 1%
OUTPUT POWER vs. SUPPLY VOLTAGE
(DAC TO SPEAKER)
MAX98089 toc66
SUPPLY VOLTAGE (V)
OUTPUT POWER PER CHANNEL (mW)
5.0
4.5
3.0
3.5
4.0
500
1000
1500
2000
2500
3000
3500
4000
0
2.5
5.5
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
Z
SPK_
= 4I + 33µH
AV
SPK_
= +8dB
TQFN PACKAGE
THD+N = 10%
THD+N = 1%
OUTPUT POWER vs. SUPPLY VOLTAGE
(DAC TO SPEAKER)
MAX98089 toc65b
SUPPLY VOLTAGE (V)
OUTPUT POWER PER CHANNEL (mW)
5.0
4.5
4.0
3.5
3.0
500
1000
1500
2000
2500
0
2.5
5.5
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
Z
SPK_
= 8I + 68µH
AV
SPK_
= +8dB
WLP PACKAGE
THD+N = 10%
THD+N = 1%
OUTPUT POWER vs. SUPPLY VOLTAGE
(DAC TO SPEAKER)
MAX98089 toc67
SUPPLY VOLTAGE (V)
OUTPUT POWER PER CHANNEL (mW)
5.0
4.5
3.0
3.5
4.0
500
1000
1500
2000
2500
3000
3500
4000
0
2.5
5.5
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
Z
SPK_
= 4I + 33µH
AV
SPK_
= +8dB
WLP PACKAGE
THD+N = 10%
THD+N = 1%