adau1381 Analog Devices, Inc., adau1381 Datasheet - Page 9

• Manufacturer Part Number: adau1381
• Description: Low-noise Stereo Codec With Enhanced Recording And Playback Processing
• Manufacturer: Analog Devices, Inc.

TYPICAL POWER MANAGEMENT MEASUREMENTS
Master clock = 12.288 MHz, PLL is active in integer mode at a 256 × f
−1 dBFS with a frequency of 1 kHz. Analog input and output are simultaneously active. Pseudo differential stereo input is routed to
ADCs, and DACs are routed to stereo line output with a 16 kΩ load. ADC input at −1 dBFS, DAC input at 0 dBFS. The speaker output is
disabled. The serial port is configured in slave mode. The beep path is disabled. The sound engine processing path is enabled. Current
measurements are given in units of mA rms.
Table 4. Mixer Boost and Power Management Conditions
Operating Voltage
AVDD = IOVDD = 3.3 V
AVDD = IOVDD = 1.8 V
1
2
DIGITAL FILTERS
Table 5.
Parameter
ADC DECIMATION FILTER
Set by Register 0x4009, Bits[4:1], and Register 0x4029, Bits[5:2].
Set by Register 0x4009, Bits[6:5].
Pass Band
Pass-Band Ripple
Transition Band
Stop Band
Stop-Band Attenuation
Group Delay
Power Management Mode
Normal (default)
Extreme power saving
Enhanced performance
Power saving
Normal (default)
Extreme power saving
Enhanced performance
Power saving
Mode
All modes, typ value is for 48 kHz
1
Normal operation
Normal operation
Normal operation
Normal operation
Normal operation
Normal operation
Normal operation
Normal operation
Mixer Boost Mode
Boost Level 1
Boost Level 2
Boost Level 3
Boost Level 1
Boost Level 2
Boost Level 3
Boost Level 1
Boost Level 2
Boost Level 3
Boost Level 1
Boost Level 2
Boost Level 3
Boost Level 1
Boost Level 2
Boost Level 3
Boost Level 1
Boost Level 2
Boost Level 3
Boost Level 1
Boost Level 2
Boost Level 3
Boost Level 1
Boost Level 2
Boost Level 3
Rev. A| Page 9 of 84
2
S
input rate for f
Typical AVDD Current
Consumption (mA)
16.84
16.88
16.92
17.00
15.66
15.68
15.70
15.75
17.43
17.50
17.53
17.63
16.25
16.28
16.31
16.38
15.15
15.19
15.23
15.30
14.03
14.05
14.07
14.12
15.71
15.76
15.81
15.89
14.59
14.62
14.65
14.71
Factor
0.4375 × f
0.5 × f
0.5625 × f
22.9844/f
S
S
= 48 kHz, analog and digital input tones are
S
S
S
Typical ADC
THD + N (dB)
88.5
88.5
88.5
88.5
88.0
88.0
88.0
88.0
88.5
88.5
88.5
88.5
89.0
89.0
89.0
89.0
88.5
88.5
88.5
88.5
86.5
86.5
86.5
86.5
88.5
88.5
88.5
88.5
88.0
88.0
88.0
88.0
Min
70
Typ
21
±0.015
24
27
479
93.0
93.0
93.0
87.5
87.5
87.5
94.5
94.5
94.5
94.5
90.5
90.5
90.5
90.5
89.5
89.5
89.5
85.5
85.5
85.5
90.5
90.5
90.5
90.5
88.0
88.0
88.0
88.0
Typical Line Output
THD + N (dB)
93.0
87.5
89.5
85.5
Max
ADAU1381
Unit
kHz
dB
kHz
kHz
dB
μs