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DAEV9118.001

29 January, 2002

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MAS9118 evaluation kit provides all the necessary

hardware (excluding PC running Windows 9X) and

software for evaluation of MAS9118 audio DAC with

class-D output stage.

MAS9118 evaluation board has two adjustable

voltage regulators for testing the input level shifters

of MAS9118 and for selecting various supply

voltages for class-D output driver.

The evaluation kit includes an on-board buzzer.

Optionally an external buzzer or loudspeaker can be

easily connected to the demo board by using a

jumper connector.

)($785(6

•

MAS9118 audio DAC with class-D output stage

•

Power regulation

•

Adjustable driver voltage

•

Parallel port interface for PC

•

Possibility to play wave files

•

Software synthesizer for generating a test signal and multi-tone melodies

Figure 1.

To the parallel port of a PC

MAS9118 Eval V2.0

Reset

MAS9118 Eval V2.0

X3

X6

+7.5 V (600 mA)

0 V (ground)

MAS9118

X5

X4

VDDI

(1.8 V)

VDD

(3.6 V)

R2

R1

buzzer

JP1

Buzzer and speaker configurations:

A) Buzzer on circuit board

(Citizen CHB-03E)

Jumper between

pins 1 & 2

B) External buzzer or loudspeaker

Between

pins 2 & 4

JP1

JP1

F