Datasheet

MAX9867
Ultra-Low Power Stereo Audio Codec
______________________________________________________________________________________ 19
FULL OPERATION TO SHUTDOWN (DAC)
MAX9867 toc53
TIME (1ms/div)
LOUTP (500mV/div) SCL (2V/div)
ADC SOFT-START
MAX9867 toc54
TIME (4ms/div)
ADC OUT (500mV/div) SCL (2V/div)
TOTAL HARMONIC DISTORTION + NOISE
vs. MCLK FREQUENCY, 0dBFS
MAX9867 toc55
MCLK FREQUENCY (MHz)
THD+N (dB)
2015 40 5025 5545
-50
-40
-30
-80
-90
-70
-60
-20
-10
0
-100
10 6030 35
LRCLK = 48kHz
PLL MODE
DYNAMIC RANGE vs. MCLK FREQUENCY
MAX9867 toc56
MCLK FREQUENCY (MHz)
DYNAMIC RANGE (dB)
90
100
70
80
110
120
60
10 100
V
IN
= -60dBFS
LRCLK = 48kHz
PLL MODE
A-WEIGHTED
LINE INPUT RESISTANCE vs. GAIN SETTING
MAX9867 toc57
GAIN SETTING (dB)
INPUT RESISTANCE (kΩ)
170
220
70
120
270
20
-6 4 14 24-1 9 19
AUX CODE vs. INPUT VOLTAGE
MAX9867 toc58
INPUT VOLTAGE (V)
AUX CODE (SIGNED DECIMAL)
20,000
25,000
10,000
15,000
0
5000
30,000
-5000
-0.4 0.80.2 1.20.60.401.0-0.2
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.)