Typical operating characteristics (continued) – Rainbow Electronics MAX98089 User Manual
Page 49
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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.)
OUTPUT POWER PER CHANNEL (mW)
CURRENT CONSUMPTION (mA)
10
1
0.1
100
CURRENT CONSUMPTION vs. OUTPUT
POWER (DAC TO HEADPHONE)
MAX98089 toc104
20
40
60
80
100
120
0
MCLK = 12.288MHz
LRCLK = 48kHz
LOW-POWER MODE
AV
HP_
= +3dB
R
PH
= 16I
R
PH
= 32I
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (DAC TO HEADPHONE)
MAX98089 toc105
FREQUENCY (Hz)
PSRR (dB)
10k
1k
100
20
40
60
80
100
120
0
10
100k
V
RIPPLE
= 200mV
P-P
RIPPLE ON SPKLVDD,
SPKRVDD
RIPPLE ON AVDD,
DVDD, HPVDD
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (DAC TO HEADPHONE)
MAX98089 toc106
FREQUENCY (Hz)
PSRR (dB)
10k
1k
100
20
40
60
80
100
120
0
10
100k
V
RIPPLE
= 200mV
P-P
RIPPLE ON SPKLVDD,
SPKRVDD
RIPPLE ON AVDD,
PVDD, DVDD
OUTPUT POWER PER CHANNEL (mW)
POWER CONSUMPTION (mW)
10
1
0.1
100
POWER CONSUMPTION vs. OUTPUT
POWER (DAC TO HEADPHONE)
MAX98089 toc103
20
40
60
80
100
120
0
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
AV
HP_
= +3dB
R
PH
= 16I
R
PH
= 32I
FREQUENCY (kHz)
1k
100k
CROSSTALK (dB)
10k
100
10
CROSSTALK vs. FREQUENCY
(DAC TO HEADPHONE)
MAX98089 toc107
-100
-80
-60
-40
-20
0
-120
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
R
HP
= 32I
WLP RIGHT TO LEFT
WLP LEFT TO RIGHT
TQFN RIGHT TO LEFT
TQFN LEFT TO RIGHT