Rev. PrB

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Page 4 of 12

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June 2007

ADSP-BF522C/ADSP-BF525C/ADSP-BF527C

Preliminary Technical Data

PIN DESCRIPTIONS

The ADSP-BF522C/ADSP-BF525C/ADSP-BF527C processor

adds CODEC signals as listed in Table 1.

Table 1. Pin Descriptions

Pin Name

Type Function

Pull-Up/Down

CCLKOUT

O

CODEC Clock Output

None

BCLK

I/O

CODEC Digital Audio Bit Clock

DACDAT

I

CODEC DAC Sample Rate Left/Right Clock

None

DACLRC

I/O

CODEC I/O DAC Sample Rate Left/Right Clock

Internal Pull-down1

ADCDAT

O

CODEC ADC Digital Audio Data Output

None

ADCLRC

I/O

CODEC ADC Sample Rate Left/Right Clock

Internal Pull-down1

CMODE

I

CODEC Control Interface Selection

Internal Pull-up

1

CSB

I

CODEC MPU Chip Select/MPU Interface Address Selection

Internal Pull-up1

CSDA

I/O

CODEC MPU Data Input

None

CSCL

I

CODEC MPU Clock

None

XTI/MCLK

I

CODEC Crystal Input/MPU Clock Input

None

XTO

O

CODEC Crystal Output

None

LHPOUT

O

CODEC Left Channel Headphone Output (Analog Output)

None

RHPOUT

O

CODEC Right Channel Headphone Output (Analog Output)

None

LOUT

O

CODEC Left Channel Line Output (Analog Output)

None

ROUT

O

CODEC Right Channel Line Output (Analog Output)

None

VMID

O

CODEC Mid-rail Reference Decoupling Point (Analog Output)

None

MICBIAS

O

CODEC Electret Microphone Bias (Analog Output)

None

MICIN

I

CODEC Microphone Input; (Analog Input, AC Coupled)

None

RLINEIN

I

CODEC Right Channel Line Input (Analog Input, AC Coupled)

None

LLINEIN

I

CODEC Left Channel Line Input (Analog Input, AC Coupled)

None

GND

P

CODEC Digital Core Ground

N/A

AVDD

P

N/A

AGND

P

CODEC Analog Ground

N/A

HPVDD

P

N/A

HPGND

P

CODEC Headphone Ground

N/A