Rainbow Electronics MAX98088 - Manual (Page 28)

Stereo Audio Codec
with FLEXSOUND Technology
MAX98088
28
Typical Operating Characteristics
(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.)
Microphone to ADC
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY (MIC TO ADC)
MAX98088 toc01
FREQUENCY (Hz)
THD+N RATIO (dB)
1000 100 10 10,000
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
MCLK = 13MHz
LRCLK = 8kHz
FREQ MODE
V
IN = 1V P-P
AV MICPRE_ = 0dB
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY (MIC TO ADC)
MAX98088 toc02
FREQUENCY (Hz)
10,000 1000 100
0
10 100,000
THD+N RATIO (dB)
-90
-80
-70
-60
-50
-40
-30
-20
-10
MCLK = 13MHz
LRCLK = 44.1kHz
PLL MODE
V
IN = 1V P-P
AV MICPRE_ = 0dB
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY (MIC TO ADC)
MAX98088 toc03
FREQUENCY (Hz)
10,000 1000 100
0
10 100,000
THD+N RATIO (dB)
-90
-80
-70
-60
-50
-40
-30
-20
-10
-100
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
V
IN = 1V P-P
AV MICPRE_ = 0dB
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY (MIC TO ADC)
MAX98088 toc04
FREQUENCY (Hz)
10,000 1000 100
0
10 100,000
THD+N RATIO (dB)
-90
-80
-70
-60
-50
-40
-30
-20
-10
-100
MCLK = 12.288MHz
LRCLK = 96kHz
NI MODE
V
IN = 1V P-P
AV MICPRE_ = 0dB
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY (MIC TO ADC)
MAX98088 toc05
FREQUENCY (Hz)
THD+N RATIO (dB)
1000 100 10 10,000
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
MCLK = 13MHz
LRCLK = 8kHz
FREQ MODE
V
IN = 0.1V P-P
AV MICPRE_ = 0dB
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY (MIC TO ADC)
MAX98088 toc06
FREQUENCY (Hz)
THD+N RATIO (dB)
1000 100 10 10,000
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
MCLK = 13MHz
LRCLK = 8kHz
FREQ MODE
V
IN = 0.032V P-P
AV MICPRE_ = 0dB