Rainbow Electronics MAX98088 - Manual (Page 35)

Stereo Audio Codec
with FLEXSOUND Technology
MAX98088
35
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. R HP = J, R REC = J, Z SPK = J, 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.)
DAC to Receiver
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (DAC TO RECEIVER)
MAX98088 toc35
OUTPUT POWER (W)
THD+N (dB)
0.10 0.08 0.06 0.04 0.02
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
0 0.12
MCLK = 13MHz
LRCLK = 8kHz
FREQ MODE
R
REC = 32I
AV REC = +8dB
f = 3000Hz
f = 1000Hz
f = 100Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (DAC TO RECEIVER)
MAX98088 toc36
FREQUENCY (Hz)
THD+N (dB)
1000 100
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
10 10,000
MCLK = 13MHz
LRCLK = 8kHz
FREQ MODE
R
REC = 32I
AV
REC
= +8dB
P OUT = 0.02W
P OUT = 0.08W
OUTPUT POWER vs. SUPPLY VOLTAGE
(DAC TO RECEIVER)
MAX98088 toc37
SUPPLY VOLTAGE (V)
OUTPUT POWER PER CHANNEL (mW)
5.0 4.5 4.0 3.5 3.0
80
100
120
140
160
180
200
60
2.5 5.5
MCLK = 13MHz
LRCLK = 8kHz
FREQ MODE
R
REC = 32I
AV REC = +8dB
THD+N = 10%
THD+N = 1%
GAIN vs. FREQUENCY
(DAC TO RECEIVER)
MAX98088 toc38
NORMALIZED GAIN (dBrA)
-4
-3
-2
-1
0
1
2
3
4
5
-5
FREQUENCY (Hz)
10,000 1000 100 10
MCLK = 13MHz
LRCLK = 8kHz
FREQ MODE
R
REC = 32I
POWER CONSUMPTION vs. OUTPUT
POWER (DAC TO RECEIVER)
MAX98088 toc39
OUTPUT POWER PER CHANNEL (mW)
POWER CONSUMPTION (mW)
50 40 30 20 10
50
100
150
200
250
0
0 60
MCLK = 13MHz
LRCLK = 8kHz
FREQ MODE
AV
REC
= +8dB
R REC = 32I
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (DAC TO RECEIVER)
MAX98088 toc40
FREQUENCY (Hz)
PSRR (dB)
10,000 1000 100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
10 100,000
INPUTS AC GROUNDED
V RIPPLE = 200mV P-P
RIPPLE ON SPKLVDD,
SPKRVDD
RIPPLE ON AVDD,
DVDD, HPVDD