Rainbow Electronics MAX98089 - Manual (Page 38)

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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.)
DAC-to-Line Output
Line-to-Line Output
INBAND OUTPUT SPECTRUM,
0dBFS (DAC TO LINE)
MAX98089 toc49
FREQUENCY (kHz)
AMPLITUDE (dBV)
15 10 5
-120
-100
-80
-60
-40
-20
0
20
-140
0 20
MCLK = 13MHz
LRCLK = 8kHz
FREQ MODE
R LOAD = 10kI
FREQUENCY (kHz)
18 16 2 4 6 10 12 8 14 0 20
INBAND OUTPUT SPECTRUM,
-60dBFS (DAC TO LINE)
MAX98089 toc50
AMPLITUDE (dBV)
-120
-100
-80
-60
-40
-20
0
-140
MCLK = 13MHz
LRCLK = 8kHz
FREQ MODE
R LINE = 10kI
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT LEVEL
(LINE-IN TO LINE-OUT)
MAX98089 toc51
OUTPUT LEVEL (V RMS )
THD+N (dB)
1.2 1.0 0.6 0.8 0.4 0.2
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
0 1.4
R LOAD = 10kI
f = 6kHz
f = 1kHz f = 100Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (LINE-IN TO LINE-OUT)
MAX98089 toc53
FREQUENCY (Hz)
THD+N (dB)
10k 1k 100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
10 100k
V IN = 1V RMS
R LINE = 10kI
EXTERNAL GAIN MODE
R
EXT = 56kI
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (LINE IN TO LINE OUT)
MAX98089 toc52
FREQUENCY (Hz)
THD+N RATIO (dB)
10k 1k 100
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
10 100k
V OUT = 0.2V RMS
V OUT = 0.8V RMS
R LINE = 10kI