Rainbow Electronics MAX98089 - Manual (Page 43)

���������������������������������������������������������������� Maxim Integrated Products 43
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.)
FREQUENCY (Hz)
1k 100k
CROSSTALK (dB)
10k 100 10
CROSSTALK
vs. FREQUENCY (DAC TO SPEAKER)
MAX98089 toc73
-100
-80
-60
-40
-20
RIGHT TO LEFT
LEFT TO RIGHT
0
-120
MCLK = 12.288MHz
LRCLK = 48kHz
NI MODE
Z
SPK_ = 8I + 68µH
SOFTWARE TURN-ON/OFF RESPONSE
(DAC TO SPEAKER, VSEN = 0)
MAX98089 toc74
SCL
1V/div
SPEAKER
OUTPUT
1V/div
10ms/div
SOFTWARE TURN-ON/OFF RESPONSE
(DAC TO SPEAKER, VSEN = 1)
MAX98089 toc75
SCL
1V/div
SPEAKER
OUTPUT
1V/div
10ms/div
FFT, -60dBFS (DAC TO SPEAKER)
MAX98089 toc76
FREQUENCY (kHz)
AMPLITUDE (dBV)
15 10 5
-120
-100
-80
-60
-40
-20
0
20
-140
0 20
MCLK = 12.2888MHz
LRCLK = 48kHz
NI MODE
Z
SPK_ = 8I + 68µH
FFT, -60dBFS (DAC TO SPEAKER)
MAX98089 toc77
FREQUENCY (kHz)
AMPLITUDE (dBV)
15 10 5
-120
-100
-80
-60
-40
-20
0
-140
0 20
MCLK = 13MHz
LRCLK = 44.1kHz
PLL MODE
Z
SPK_ = 8I + 68µH
WIDEBAND FFT (DAC TO SPEAKER)
MAX98089 toc78
FREQUENCY (MHz)
AMPLITUDE (dBm)
10
-80
-60
-40
-20
0
-100
1 100
MCLK = 13MHz
LRCLK = 44.1kHz
PLL MODE
Z
SPK_ = 8I + 68µH