ADAU1781 Analog Devices, ADAU1781 Datasheet - Page 16

• Manufacturer Part Number: ADAU1781
• Description: SigmaDSP Low-noise Stereo Audio Codec for Portable Applications
• Manufacturer: Analog Devices

Specifications of ADAU1781

• Instructions/cycles: 1024
• Digital I/o Channels: 8/8
• Analog I/o Channels: 2/2
• Product Description: SigmaDSP low-noise stereo audio codec for portable applications

ADAU1781
Pin No.
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
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.
Mnemonic
MCKO
AVDD2
SPN
NC
SPP
AGND2
NC
AOUTR
AOUTL
RMIC/RMICN/MICD2
RMICP
LMICP
LMIC/LMICN/MICD1
BEEP
MICBIAS
THERM_PAD
(Exposed Pad)
Type
D_OUT
PWR
A_OUT
A_OUT
PWR
A_OUT
A_OUT
A_IN
A_IN
A_IN
A_IN
A_IN
PWR
1
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.
Rev. B | Page 16 of 92