max9856 Maxim Integrated Products, Inc., max9856 Datasheet - Page 12

• 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
12
AVDD
-100
-120
-100
-120
-140
-100
-120
-140
-20
-40
-60
-80
-20
-40
-60
-80
-20
-40
-60
-80
20
20
______________________________________________________________________________________
0
0
000E+0
0
000E+0
10
AVPRE
= V
SYNCHRONOUS SLAVE MODE, -60dBFS
ASYNCHRONOUS SLAVE MODE, 0dBFS
V
POWER-SUPPLY REJECTION RATIO
2E+3
RIPPLE
2E+3
CPVDD
FFT, DAC TO LINE OUT, 48kHz
FFT, DAC TO LINE OUT, 48kHz
vs. FREQUENCY (DAC TO HP)
4E+3
4E+3
= +20dB, C
= 100mV
100
6E+3
6E+3
= V
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
8E+3
8E+3
P-P
DVDDS2
10E+3
10E+3
1k
12E+3
MICBIAS
12E+3
MCLK = 11.2896MHz
LRCLK = 48kHz
PCLK/2
MCLK = 12.288MHz
LRCLK = 48kHz
PCLK/2
14E+3
14E+3
= V
10k
16E+3
16E+3
DVDD
= 1µF, V
18E+3
18E+3
20E+3
= 1.8V, R
20E+3
100k
AVMICPGA
HP
-100
-120
Typical Operating Characteristics (continued)
-100
-120
-140
-100
-120
-140
-20
-40
-60
-80
-20
-40
-60
-80
-20
-40
-60
-80
20
20
0
0
000E+0
0
000E+0
= 32Ω, R
10
ASYNCHRONOUS MASTER MODE, 0dBFS
ASYNCHRONOUS SLAVE MODE, -60dBFS
= 0dB, MCLK = 12.288MHz, DRATE = 10, T
V
vs. FREQUENCY (DAC TO LINE OUT)
POWER-SUPPLY REJECTION RATIO
2E+3
2E+3
RIPPLE
FFT, DAC TO LINE OUT, 48kHz
FFT, DAC TO LINE OUT, 48kHz
4E+3
4E+3
= 100mV
LINE
100
6E+3
6E+3
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
8E+3
8E+3
= 10kΩ, C1 = 4.7µF, C2 = 4.7µF, C
P-P
10E+3
10E+3
1k
12E+3
12E+3
MCLK = 11.2896MHz
LRCLK = 48kHz
PCLK/2
MCLK = 11.2896MHz
LRCLK = 48kHz
PCLK/2
14E+3
14E+3
10k
16E+3
16E+3
18E+3
18E+3
20E+3
20E+3
100k
-100
-120
-140
-100
-120
-140
-100
-120
-140
-20
-40
-60
-80
-20
-40
-60
-80
-20
-40
-60
-80
20
20
20
0
0
000E+0
0
000E+0
A
ASYNCHRONOUS MASTER MODE, -60dBFS
SYNCHRONOUS MASTER MODE (0dBFS)
0
= +25°C, unless otherwise noted.)
SYNCHRONOUS SLAVE MODE, 0dBFS
REF
2E+3
2E+3
FFT, DAC TO LINE OUT, 48kHz
FFT, LINE IN TO ADC (48kHz)
FFT, DAC TO LINE OUT, 48kHz
4E+3
4E+3
= C
5k
6E+3
6E+3
MBIAS
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
8E+3
8E+3
10E+3
10E+3
10k
= C
12E+3
12E+3
MCLK = 11.2896MHz
LRCLK = 48kHz
PCLK/2
MCLK = 12.288MHz
LRCLK = 48kHz
PCLK/2
MCLK = 12.288MHz
LRCLK = 48kHz
PCLK/2
PREG
14E+3
14E+3
15k
16E+3
16E+3
= C
18E+3
18E+3
NREG
20E+3
20E+3
20k