max9856 Maxim Integrated Products, Inc., max9856 Datasheet - Page 14

• Manufacturer Part Number: max9856
• Description: Max9856 Low-power Audio Codec With Directdrive Headphone Amplifiers
• Manufacturer: Maxim Integrated Products, Inc.

Low-Power Audio CODEC with
DirectDrive Headphone Amplifiers
(V
=1µF, V
14
AVDD
-10
-20
-30
-40
-50
-60
-70
10
-1
-2
-3
-4
-5
-6
-7
0
ADC DIGITAL FILTER FREQUENCY RESPONSE
3
2
1
0
______________________________________________________________________________________
-100
AUTOMATIC GAIN CONTROL THRESHOLDS
0
AVPRE
= V
CPVDD
-80
5k
= +20dB, C
MICROPHONE INPUT (dBV)
-60
= V
FREQUENCY (Hz)
10k
DVDDS2
-40
MICBIAS
15k
-20
= V
20k
DVDD
= 1µF, V
0
= 1.8V, R
25k
20
AVMICPGA
5mV/div
1V/div
1V/div
SDA
0.01
SCL
HPL
0.1
HP
Typical Operating Characteristics (continued)
1
10
= 32Ω, R
TOTAL HARMONIC DISTORTION + NOISE
= 0dB, MCLK = 12.288MHz, DRATE = 10, T
DAC PLAYBACK MODE (48kHz)
11
vs. MCLK FREQUENCY, 0dBFS
12
LINE
13
FREQUENCY (MHz)
TIME (200ms/div)
CLICK-POP
14
= 10kΩ, C1 = 4.7µF, C2 = 4.7µF, C
15
16
17
18
MAX9856 toc29
19
20
0V
0V
0V
LINEOUTL
1V/div
1V/div
1V/div
SCL
SDA
100
98
96
94
92
90
88
86
84
82
80
A
= +25°C, unless otherwise noted.)
10
REF
DAC PLAYBACK MODE (48kHz)
vs. MCLK FREQUENCY (-60dBFS)
= C
12
MBIAS
DAC SOFT-START
DYNAMIC RANGE
FREQUENCY (MHz)
TIME (4ms/div)
= C
14
PREG
= C
16
MAX9856 toc30
NREG
20
0V
0V
0V