CS6403 datasheet(30/54 Pages) CIRRUS

30 / 54 page

DVDD0 - Digital supply, PIN 40Q, 2L

Digital +5V supply.

DVDD1 - Digital supply, PIN 39Q, 1L

Digital +5V supply.

PGND0 - Speaker-driver ground, PIN 18Q, 24L

Speaker driver ground.

PGND1 - Speaker-driver ground, PIN 22Q, 28L

Speaker driver ground.

PVDD - Speaker-driver supply, PIN 20Q, 26L

Speaker-driver +5V supply.

Analog I/O

MICIN - ADC input, PIN 28Q, 34L

Audio analog input.

SPKROUTN - DAC inverted output, PIN 19Q, 25L

Negative differential speaker-driver output. The voltage on SPKROUTN will decrease if the

DAC value is increased.

SPKROUTP - DAC output, PIN 21Q, 27L

Positive differential speaker-driver output.

The voltage on SPKROUTP will increase if the

DAC value is increased.

VCM - Voltage reference common out, PIN 24Q, 30L

No time-varying loads should be attached to VCM. Output voltage is about 1V into a load of

not less than 100k

Ω. Must be connected to AGND0 via a 1 µF and a 0.1 µF capacitors.

Connections should be made with short, fat traces.

VREF - Voltage reference bypass out, PIN 25Q, 31L

Voltage reference used internal to the CS6403. Must be connected to AGND0 via a 1

µF and a

0.1

µF capacitors. Connections should be made with short, fat traces. No external loads should

be connected to VREF.

Reserved

RESERVED0 - PIN 14Q, 20L

Must be grounded in normal operation.

RESERVED1 - PIN 10Q, 16L

Must be held high in normal operation.

CS6403

DS192PP6

CS6403 Datasheet(PDF) 30 Page - Cirrus Logic