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6

MAX98361 Evaluation System

Evaluates: MAX98361 (WLP)

Audio Interface Board III

Maxim’s Audio Interface board III (AUDINT3 board) facilitates 

the evaluation of the DEV board by providing a set of  

features that can be used to exercise the capabilities of 

the DEV board without the need for additional audio 

equipment. The main components of the AUDINT3 

board are its LDO supply voltages and its USB-to-PCM  

interfaces. The supply voltages allow the DEV board to be  

evaluated with minimal amount of external supplies. The 

USB-to-PCM converter allows any computer to be used 

as an audio source for the DEV board’s digital audio PCM 

interface.

The MAX98361 DEV board connects to the AUDINT3 

board through connector J1. The physical connections 

made between the DEV board and AUDINT3 board are 

listed in 

Table 8

.

USB Audio Input

To utilize the USB streaming feature of the AUDINT3 

board, connect the USB cables from your computer to 

the USB connector J2 on the AUDINT3 board and ensure 

that the AUDINT3 board is connected to the DEV board.

#Denotes RoHS compliant.

PART

TYPE

MAX98361AEVSYS#WLP

Complete Evaluation System

MAX98361BEVSYS#WLP

Complete Evaluation System

MAX98361CEVSYS#WLP

Complete Evaluation System

MAX98361DEVSYS#WLP

Complete Evaluation System

Ordering Information

Summary of Contents for MAX98361

Page 1: ... All MAX98361 variants support an 8 channel TDM digital audio interface The AUDINT3 board provides the USB to PCM interface in addition to the 1 8V VDDIO supply needed to evaluate the DEV board The MAX98361 DEV board requires one additional supply input 2 5V to 5 5V VDD when evaluat ing using the AUDINT3 board Figure 1 details the DEV board and the AUDINT3 board 319 100890 Rev 0 2 22 Ordering Info...

Page 2: ...s as well as the power for VDDIO sourcing 1 8V to the DEV board through the J1 connector 3 The multi color LED D1 blinks white When the com puter registers the AUDINT3 as a USB device D1 changes to magenta and blink slowly DEV Board Setup 1 With all supplies unpowered connect the 2 5V to 5 5V power supply across the VIN and GND binding posts 2 Connect the micro speaker leads across the FOUTP and F...

Page 3: ... to the MAX98361 IC This voltage can be applied externally at the VIN and GND PCB pads or 5V can be provided from the AUDINT3 board See Table 2 for the J5 jumper selection The 5V supply from the AUDINT3 board should be used only for functionality tests and should not be used when driving a speaker load due to the low current limit of the on board 5V supply The voltage applied to the VDDIO test poi...

Page 4: ... are used to select which of the 8 channels of TDM data the part responds to as shown in Table 6 Digital Audio Interface The MAX98361 Digital Audio Interface DAI is routed to interface header J3 as well as the AUDINT3 connector J1 The interface headers provide easy access to the device s PCM bus and the AUDINT3 connector allows for USB audio to be streamed onto the DEV board See the USB Audio Inpu...

Page 5: ...te bead plus capacitor filter can be installed to prevent excessive EMI radiation Although it is best to choose filter components based on EMI test results the combination of 100pF capacitors C3 C4 and ferrite beads FB1 FB2 generally work well Before adding the filters to the design first remove the small PCB traces shorting the pads of FB1 and FB2 see the MAX98361 EV Kit Development Board Schemat...

Page 6: ...B to PCM converter allows any computer to be used as an audio source for the DEV board s digital audio PCM interface The MAX98361 DEV board connects to the AUDINT3 board through connector J1 The physical connections made between the DEV board and AUDINT3 board are listed in Table 8 USB Audio Input To utilize the USB streaming feature of the AUDINT3 board connect the USB cables from your computer t...

Page 7: ...J5 1 PEC03SAAN SULLINS PEC03SAAN CONNECTOR MALE THROUGH HOLE BREAKAWAY STRAIGHT 3PINS 12 J9 J12 4 91772A108 PHILLIPS PAN_4 40X3 8IN PMSSS4400038PH 9901 GENERIC PART N A MACHINE SCREW PHILLIPS PAN 4 40 3 8IN 18 8 STAINLESS STEEL 13 J9 J12 4 MCH_SO_F_HEX_4 40X1 2 GENERIC PART N A STANDOFF FEMALE THREADED HEX 4 40 1 2IN ALUMINUM 14 R1 R2 2 RC0603JR 07100KL YAGEO 100K RESISTOR 0603 100K OHM 5 100PPM 0...

Page 8: ... C2 C1 GND BCLK LRCLK DIN C11 R7 C12 R8 R9 C10 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 J1 5 4 3 2 1 J4 R2 R3 6 5 4 3 2 1 J3 GND GND GND GND DIN DAI1 DAI2 DAI0 LRCLK BCLK DIN DAI0 DAI1 DAI2 LRCLK BCLK DIN DAI2 DAI0 DAI1 LRCLK BCLK BCLK_H LRCLK_H DIN_H 1 2K VDDIO GND VIN PEC03SAAN 0 1UF 16V 5V VDD 17 8K 5V OPEN OPEN GND FOUTP 0 DNP 0 DNP FOUTN OPEN OPEN DAI0 DAI1 DAI2 DI...

Page 9: ...nalog Devices 9 MAX98361 Evaluation System Evaluates MAX98361 WLP MAX98361 EV System Top Silkscreen MAX98361 EV System Inner 1 MAX98361 EV System Top MAX98361 EV System Inner 2 MAX98361 EV System PCB Layout Diagrams 1 ...

Page 10: ...www analog com Analog Devices 10 MAX98361 Evaluation System Evaluates MAX98361 WLP MAX98361 EV System Bottom MAX98361 EV System Bottom Silkscreen MAX98361 EV System PCB Layout Diagrams continued ...

Page 11: ...its use nor for any infringements of patents or other rights of third parties that may result from its use Specifications subject to change without notice No license is granted by implication or otherwise under any patent or patent rights of Analog Devices Trademarks and registered trademarks are the property of their respective owners REVISION NUMBER REVISION DATE DESCRIPTION PAGES CHANGED 0 2 22...

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