ADAU1361BCPZ-R7 datasheet(14/78 Pages) AD

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Data Sheet

ADAU1361

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

analog.com

Rev. E | 14 of 78

Table 10. Pin Function Descriptions (Continued)

Pin No.

Mnemonic

Type1

Description

DVDDOUT

PWR

Digital Core Supply Decoupling Point. The digital supply is generated from an on-board regulator and does not

require an external supply. DVDDOUT should be decoupled to DGND with a 100 nF capacitor and a 10 μF capacitor.

DGND

PWR

Digital Ground. The AGND and DGND pins can be tied together on a common ground plane. DGND should be

decoupled to DVDDOUT and to IOVDD with 100 nF capacitors and 10 μF capacitors.

ADC_SDATA

D_OUT

ADC Serial Output Data.

DAC_SDATA

D_IN

DAC Serial Input Data.

BCLK

D_IO

Serial Data Port Bit Clock.

LRCLK

D_IO

Serial Data Port Frame Clock.

ADDR1/CDATA

D_IN

I2C Address Bit 1 (ADDR1).

SPI Data Input (CDATA).

SDA/COUT

D_IO

I2C Data (SDA). This pin is a bidirectional open-collector input/output. The line connected to this pin should have a 2

kΩ pull-up resistor.SPI Data Output (COUT). This pin is used for reading back registers and memory locations. It is

three-state when an SPI read is not active.

SCL/CCLK

D_IN

I2C Clock (SCL). This pin is always an open-collector input when in I2C control mode. The line connected to this pin

should have a 2 kΩ pull-up resistor.SPI Clock (CCLK). This pin can run continuously or be gated off between SPI

transactions.

Exposed Pad

Exposed Pad. The exposed pad is connected internally to the ADAU1361 grounds. For increased reliability of the

solder joints and maximum thermal capability, it is recommended that the pad be soldered to the ground plane. See

the Exposed Pad PCB Design section for more information.

1 A_IN = analog input, A_OUT = analog output, D_IN = digital input, D_IO = digital input/output, D_OUT = digital output, PWR = power.

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