Rainbow Electronics MAX9867 - Manual (Page 16)

MAX9867
Ultra-Low Power Stereo Audio Codec
16 ______________________________________________________________________________________
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (MIC TO ADC)
MAX9867 toc28
FREQUENCY (Hz)
PSRR (dB) -50
-40
-30
-80
-70
-60
-20
-10
0
-90
10 100 1000
V RIPPLE = 100mV P-P
MCLK = 13MHz
LRCLK = 8kHz
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (MICBIAS)
MAX9867 toc29
FREQUENCY (Hz)
PSRR (dB) -50
-40
-30
-80
-70
-60
-20
-10
0
-90
10 100 1000
V RIPPLE = 100mV P-P
FFT, DAC TO HEADPHONE,
0dBFS, MCLK = 13MHz, LRCLK = 8kHz
MAX9867 toc30
AMPLITUDE (dB)
-60
-40
-120
-100
-80
-20
0
20
-140
0 6 12 18
FREQ = 0xA
FREQUENCY (kHz)
20 2 8 10 16 4 14
FFT, DAC TO HEADPHONE,
-60dBFS, MCLK = 13MHz, LRCLK = 8kHz
MAX9867 toc31
AMPLITUDE (dB)
-60
-40
-120
-100
-80
-20
0
20
-140
FREQ = 0xA
0 6 12 18
FREQUENCY (kHz)
20 2 8 10 16 4 14
FFT, DAC TO HEADPHONE,
0dBFS, MCLK = 12.288MHz, LRCLK = 48kHz
MAX9867 toc32
AMPLITUDE (dB)
-60
-40
-120
-100
-80
-20
0
20
-140
NI = 6000
0 6 12 18
FREQUENCY (kHz)
20 2 8 10 16 4 14
FFT, DAC TO HEADPHONE,
-60dBFS, MCLK = 12.288MHz, LRCLK = 48kHz
MAX9867 toc33
AMPLITUDE (dB)
-60
-40
-120
-100
-80
-20
0
20
-140
NI = 6000
0 6 12 18
FREQUENCY (kHz)
20 2 8 10 16 4 14
FFT, DAC TO HEADPHONE,
0dBFS, MCLK = 13MHz, LRCLK = 48kHz
MAX9867 toc34
AMPLITUDE (dB)
-60
-40
-120
-100
-80
-20
0
20
-140
PLL MODE
0 6 12 18
FREQUENCY (kHz)
20 2 8 10 16 4 14
FFT, DAC TO HEADPHONE,
-60dBFS, MCLK = 13MHz, LRCLK = 48kHz
MAX9867 toc35
AMPLITUDE (dB)
-60
-40
-120
-100
-80
-20
0
20
-140
PLL MODE
0 6 12 18
FREQUENCY (kHz)
20 2 8 10 16 4 14
FFT, DAC TO HEADPHONE,
0dBFS, MCLK = 13MHz, LRCLK = 44.1kHz
MAX9867 toc36
AMPLITUDE (dB)
-60
-40
-120
-100
-80
-20
0
20
-140
PLL MODE
0 6 12 18
FREQUENCY (kHz)
20 2 8 10 16 4 14
Typical Operating Characteristics (continued)
(V AVDD = V DVDD = V PVDD = +1.8V, C REF = 2.2μF, C MICBIAS = C PREG = C REG = 1μF, AV MICPGA = 0dB, MCLK = 13MHz, LRCLK =
8kHz, BW = 20Hz to f S /2, T A = +25°C, unless otherwise noted.)