Rainbow Electronics MAX98088 - Manual (Page 51)

Stereo Audio Codec
with FLEXSOUND Technology
MAX98088
51
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.)
Line to Headphone
OUTPUT POWER (W)
0.04 0.03 0.02 0.01 0 0.05
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
(LINE TO HEADPHONE)
MAX98088 toc117
THD+N RATIO (dB)
-90
-80
-70
-60
-50
-40
-30
-20
-10
f = 1000Hz
f = 100Hz
0
R HP = 32I
AV HP_ = +3dB
C IN = 1µF
f = 6000Hz
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
(LINE TO HEADPHONE)
MAX98088 toc118
FREQUENCY (Hz)
10,000 1000 100
0
10 100,000
THD+N RATIO (dB)
-90
-80
-70
-60
-50
-40
-30
-20
-10
R HP = 32I
AV HP_ = +3dB
C IN = 1µF
P OUT = 0.01W
P OUT = 0.020W
GAIN vs. FREQUENCY
(LINE TO HEADPHONE)
MAX98088 toc119
FREQUENCY (Hz)
10,000 1000 100
5
10 100,000
NORMALIZED GAIN (dB)
-5
-4
-3
-2
-1
0
1
2
3
4
R HP = 32I
C IN = 1µF
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (LINE TO HEADPHONE)
MAX98088 toc120
FREQUENCY (Hz)
PSRR (dB)
10,000 1000 100
0
-100
10 100,000
-90
-80
-70
-60
-50
-40
-30
-20
-10
V RIPPLE = 200mV P-P
RIPPLE ON SPKLVDD,
SPKRVDD
RIPPLE ON AVDD,
DVDD, HPVDD
CROSSTALK vs. FREQUENCY
(LINE TO HEADPHONES)
MAX98088 toc121
FREQUENCY (Hz)
CROSSTALK (dB)
10,000 1000 100
-70
-60
-50
-40
-30
-20
-10
0
-80
10 100,000
R HP = 32I