Rainbow Electronics MAX98089 - Manual (Page 37)

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MAX98089
Low-Power, Stereo Audio Codec
with FlexSound Technology
Line to Receiver
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.)
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
(LINE TO RECEIVER)
MAX98089 toc45
OUTPUT POWER (W)
THD+N RATIO (dB)
0.08 0.06 0.04 0.02
0
-70
0 0.10
-60
-50
-40
-30
-20
-10
R REC = 32I
AV REC = +8dB
C IN = 1µF
f = 6000Hz
f = 1000Hz
f = 100Hz
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
(LINE TO RECEIVER)
MAX98089 toc46
FREQUENCY (Hz)
THD+N RATIO (dB)
10k 1k 100
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
10 100k
R REC = 32I
AV REC = +8dB
C IN = 1µF
P OUT = 0.025W
P OUT = 0.05W
GAIN vs. FREQUENCY
(LINE TO RECEIVER)
MAX98089 toc47
FREQUENCY (Hz)
10k 1k 100
5
10 100k
NORMALIZED GAIN (dB)
-4
-3
-2
-1
0
1
2
3
4
-5
R REC = 32I
C IN = 1µF
20
40
60
80
100
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (LINE TO RECEIVER)
MAX98089 toc48
FREQUENCY (Hz)
PSRR (dB)
10k 1k 100
120
0
10 100k
V RIPPLE = 200mV P-P
RIPPLE ON AVDD, DVDD, HPVDD
RIPPLE ON SPKLVDD, SPKRVDD