Max9867 ultra-low power stereo audio codec, Typical operating characteristics – Rainbow Electronics MAX9867 User Manual
Page 13
MAX9867
Ultra-Low Power Stereo Audio Codec
______________________________________________________________________________________
13
TOTAL HARMONIC DISTORTION + NOISE
vs. POWER OUT (DAC TO HEADPHONE)
MAX9867 toc01
POWER OUT (mW)
THD+N (dB)
15
10
30
5
25
20
-50
-40
-30
-80
-70
-60
-20
-10
0
-90
0
35
MCLK = 13MHz
LRCLK = 8kHz
R
LOAD
= 32
Ω
DIFFERENTIAL MODE
3kHz
20Hz
1kHz
TOTAL HARMONIC DISTORTION + NOISE
vs. POWER OUT (DAC TO HEADPHONE)
MAX9867 toc02
POWER OUT (mW)
THD+N (dB)
50
40
20
10
30
60
-50
-40
-30
-80
-70
-60
-20
-10
0
-90
0
MCLK = 13MHz
LRCLK = 8kHz
R
LOAD
= 16
Ω
DIFFERENTIAL MODE
3kHz
20Hz
1kHz
TOTAL HARMONIC DISTORTION + NOISE
vs. POWER OUT (DAC TO HEADPHONE)
MAX9867 toc03
POWER OUT (mW)
THD+N (dB)
15
10
30
5
25
20
-50
-40
-30
-80
-70
-60
-20
-10
0
-90
0
35
MCLK = 12.288MHz
LRCLK = 48kHz
R
LOAD
= 32
Ω
DIFFERENTIAL MODE
6kHz
20Hz
1kHz
Typical Operating Characteristics
(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.)
TOTAL HARMONIC DISTORTION + NOISE
vs. POWER OUT (DAC TO HEADPHONE)
MAX9867 toc04
POWER OUT (mW)
THD+N (dB)
50
40
20
10
30
60
-50
-40
-30
-80
-70
-60
-20
-10
0
-90
0
MCLK = 12.288MHz
LRCLK = 48kHz
R
LOAD
= 16
Ω
DIFFERENTIAL MODE
6kHz
20Hz
1kHz
TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY (DAC TO HEADPHONE)
MAX9867 toc05
FREQUENCY (Hz)
THD+N (%)
1000
100
-50
-40
-30
-80
-70
-60
-20
-10
0
-90
10
10,000
MCLK = 13MHz
LRCLK = 8kHz
R
LOAD
= 32
Ω
DIFFERENTIAL MODE
5mW
20mW
TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY (DAC TO HEADPHONE)
MAX9867 toc06
FREQUENCY (Hz)
THD+N (%)
1000
100
-50
-40
-30
-80
-70
-60
-20
-10
0
-90
10
10,000
MCLK = 13MHz
LRCLK = 8kHz
R
LOAD
= 16
Ω
DIFFERENTIAL MODE
5mW
20mW
TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY (DAC TO HEADPHONE)
MAX9867 toc07
FREQUENCY (Hz)
THD+N (%)
100
10,000
-50
-40
-30
-80
-70
-60
-20
-10
0
-90
10
1000
100,000
MCLK = 12.288MHz
LRCLK = 48kHz
R
LOAD
= 32
Ω
DIFFERENTIAL MODE
5mW
20mW
TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY (DAC TO HEADPHONE)
MAX9867 toc08
FREQUENCY (Hz)
THD+N (%)
100
10,000
-50
-40
-30
-80
-70
-60
-20
-10
0
-90
10
1000
100,000
MCLK = 12.288MHz
LRCLK = 48kHz
R
LOAD
= 16
Ω
DIFFERENTIAL MODE
5mW
20mW
TOTAL HARMONIC DISTORTION + NOISE
vs. POWER OUT (DAC TO HEADPHONE)
MAX9867 toc09
POWER OUT (mW)
THD+N (dB)
4
10
6
8
2
-50
-40
-30
-80
-70
-60
-20
-10
0
-90
0
MCLK = 13MHz
LRCLK = 8kHz
R
LOAD
= 32
Ω
CAPACITORLESS MODE
3kHz
20Hz
1kHz