max9867 Maxim Integrated Products, Inc., max9867 Datasheet - Page 15

• Manufacturer Part Number: max9867
• Description: Low-power, Stereo Audio Codec
• Manufacturer: Maxim Integrated Products, Inc.

(V
8kHz, BW = 20Hz to f
AVDD
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30
25
20
15
10
0
5
0
0
vs. FREQUENCY (LINE IN TO HEADPHONE)
10
10
= V
TOTAL HARMONIC DISTORTION + NOISE
1
TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY (MICROPHONE TO ADC)
LINE IN PREAMP = +18dB
R
DIFFERENTIAL MODE
MCLK = 13MHz
LRCLK = 8kHz
MICPRE = 20dB
V
POWER OUT vs. HEADPHONE LOAD
LOAD
IN
DVDD
= 0.11V
= 32Ω
100
20mW
5mW
P-P
HEADPHONE LOAD (Ω)
= V
100
10
FREQUENCY (Hz)
FREQUENCY (Hz)
______________________________________________________________________________________
PVDD
S
/2, T
1000
MCLK = 12.288MHz
LRCLK = 48kHz
THD+N = < 0.1%
CAPACITORLESS MODE
A
= +1.8V, C
1000
= +25°C, unless otherwise noted.)
100
Ultra-Low Power Stereo Audio Codec
10,000
REF
100,000
10,000
1000
= 2.2µF, C
Typical Operating Characteristics (continued)
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0
5
0
0
vs. FREQUENCY (LINE IN TO HEADPHONE)
10
10
1
vs. FREQUENCY (MICROPHONE TO ADC)
MICBIAS
TOTAL HARMONIC DISTORTION + NOISE
TOTAL HARMONIC DISTORTION + NOISE
LINE IN PREAMP = +18dB
R
DIFFERENTIAL MODE
MCLK = 13MHz
LRCLK = 8kHz
MICPRE = 30dB
V
POWER OUT vs. HEADPHONE LOAD
LOAD
IN
= 0.032V
= 32Ω
100
5mW
= C
HEADPHONE LOAD (Ω)
P-P
100
10
FREQUENCY (Hz)
FREQUENCY (Hz)
PREG
1000
20mW
MCLK = 12.288MHz
LRCLK = 48kHz
THD+N = < 0.1%
SINGLE-ENDED MODE
= C
1000
100
REG
10,000
= 1µF, AV
100,000
10,000
1000
MICPGA
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0
0
0
10
10
1
vs. FREQUENCY (MICROPHONE TO ADC)
TOTAL HARMONIC DISTORTION + NOISE
= 0dB, MCLK = 13MHz, LRCLK =
vs. FREQUENCY (DAC TO HEADPHONE)
MCLK = 13MHz
LRCLK = 8kHz
MICPRE = 0dB
V
V
MCLK = 13MHz
LRCLK = 8kHz
POWER OUT vs. HEADPHONE LOAD
POWER-SUPPLY REJECTION RATIO
IN
RIPPLE
= 1V
= 100mV
P-P
100
HEADPHONE LOAD (Ω)
100
10
FREQUENCY (Hz)
FREQUENCY (Hz)
P-P
1000
MCLK = 12.288MHz
LRCLK = 48kHz
THD+N = < 0.1%
DIFFERENTIAL MODE
1000
100
10,000
100,000
10,000
1000
15