Preliminary Technical Data

ADIS16204

Rev. PrA | Page 7 of 9

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

ADIS16204

TOP VIEW

(NOT TO SCALE)

N/C – DO NOT CONNECT

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

COM

N/C

N/C

RST

DIO1

VREF

VDD

AUX

DAC

DIO0

CS

DIN

DOUT

SCLK

COM

COM

AUX

ADC

Y

X

Figure 4. Pin Configuration

Table 5. Pin Function Descriptions

Pin No.

Mnemonic

Description

1

SCLK

I

Serial Clock. SCLK provides the serial clock for accessing data from the part and writing serial data

to the control registers.

2

DOUT

O

Data Out. The data on this pin represents data being read from the control registers and is clocked

out on the falling edge of the SCLK.

3

DIN

I

Data In. Data written to the control registers is provided on this input and is clocked in on the

rising edge of the SCLK.

4

CS

I

Chip Select, Active Low. This input frames the serial data transfer.

5, 6

DIO0, DIO1

I/O

Multifunction Digital I/O Pins.

7, 11

NC

–

No Connect.

8, 10

AUX COM

S

Auxiliary Grounds. Connect to GND for proper operation.

9

RST

I

Reset, Active Low. This input resets the embedded microcontroller to a known state.

12

AUX DAC

O

Auxiliary DAC Analog Voltage Output.

13

VDD

S

+3.3 V Power Supply.

14

AUX ADC

I

Auxiliary ADC Analog Input Voltage.

15

VREF

O

Precision Reference Output.

16

COM

S

Common. Reference point for all circuitry in the ADIS16204.

RECOMMENDED PAD GEOMETRY

1.178 BSC

(8 PLCS)

0.500 BSC

(16 PLCS)

1.127 BSC

(16 PLCS)

0.670 BSC

(12 PLCS)

7.873 BSC

(2 PLCS)

Figure 5. Example Pad Layout