adau1381 Analog Devices, Inc., adau1381 Datasheet - Page 20

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

ADAU1381
SYSTEM BLOCK DIAGRAMS
DIFFERENTIAL INPUT
(LEFT)
DIFFERENTIAL INPUT
(RIGHT)
MCLK SOURCE
BEEP INPUT
EXTERNAL
EXTERNAL
MCKO
49.9kΩ
49.9kΩ
49.9kΩ
49.9kΩ
PDN
MICBIAS
0.1µF
10µF
10µF
10µF
10µF
49.9Ω
10µF
49.9Ω
2.2pF
LMIC/LMICN/MICD1
LMICP
RMIC/RMICN/MICD2
RMICP
BEEP
MCKI
MCKO
PDN
0.1µF
10µF
IOVDD
Figure 23. System Block Diagram with Differential Inputs
ADAU1381
0.1µF
10µF
AVDD1
DAC_SDATA/GPIO0
ADC_SDATA/GPIO1
Rev. A | Page 20 of 84
ADDR1/CLATCH
0.1µF
ADDR0/CDATA
10µF
LRCLK/GPIO3
BCLK/GPIO2
SDA/COUT
SCL/CCLK
AOUTR
AOUTL
GPIO
SPN
AVDD2
SPP
CM
0.1µF
47µF
100nF
CONTROLLER
SYSTEM
SERIAL
+
DATA
10µF
–
+
10kΩ
10kΩ
GPIO
8Ω
SPEAKER
OUT
100pF
100pF
10kΩ
10kΩ
STEREO
HEADPHONE
AMPLIFIER
10Ω 220µF
10Ω 220µF
STEREO SINGLE-ENDED
HEADPHONE OUTPUT
RIGHT_OUT
10kΩ
10kΩ
LEFT_OUT