ADAU1781 Datasheet, PDF (16/88 Pages) Analog Devices – Low Noise Stereo Codec with SigmaDSP Processing Core

ADAU1781
Pin No.
18
19
20
21
22
23
24
25
26
27
Mnemonic
MCKO
AVDD2
SPN
NC
SPP
AGND2
NC
AOUTR
AOUTL
RMIC/RMICN/MICD2
Type ¹
D_OUT
PWR
A_OUT
A_OUT
PWR
A_OUT
A_OUT
A_IN
28
RMICP
A_IN
29
LMICP
A_IN
30
LMIC/LMICN/MICD1 A_IN
31
BEEP
32
MICBIAS
THERM_PAD
(Exposed Pad)
A_IN
PWR
Description
Master Clock Output.
Analog Power Supply. Should be equivalent to AVDD1.
Speaker Amplifier Negative Signal Output.
No Connect.
Speaker Amplifier Positive Signal Output.
Speaker Amplifier Ground.
No Connect.
Line Output Amplifier, Right Channel.
Line Output Amplifier, Left Channel.
Right Channel Input from Single-Ended Source/Right Channel Input from Negative Pseudo
Differential Source/Digital Microphone Input 2.
Right Channel Input from Positive Pseudo Differential Source.
Left Channel Input from Positive Pseudo Differential Source.
Left Channel Input from Single-Ended Source/Left Channel Input from Negative Pseudo
Differential Source/Digital Microphone Input 1.
Beep Signal Input.
Microphone Bias.
Exposed Pad. The exposed pad is connected internally to the ADAU1781 grounds. For increased
reliability of the solder joints and maximum thermal capability, it is recommended that the
pad be soldered to the ground plane.
1 _{A_OUT = analog output, A_IN = analog input, PWR = power, D_IO = digital input/output, D_OUT = digital output, and D_IN = digital input.}
Rev. 0 | Page 16 of 88