Data Sheet

ADRF6516

Rev. C | Page 7 of 29

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

VPSD

COMD

LE

CLK

DATA

SDO

COM

VPS

OPP1

OPM1

COM

GAIN

VOCM

COM

OPM2

OPP2

ADRF6516

TOP VIEW

(Not to Scale)

NOTES

1. CONNECT THE EXPOSED PADDLE TO

A LOW IMPEDANCE GROUND PAD.

24

23

22

21

20

19

18

17

1

2

3

4

5

6

7

8

Figure 4. Pin Configuration

Table 3. Pin Function Descriptions

Pin No.

Mnemonic

Description

1

VPSD

Digital Positive Supply Voltage: 3.15 V to 3.45 V.

2

COMD

Digital Common. Connect to external circuit common using the lowest possible impedance.

3

LE

4

CLK

5

DATA

6

SDO

7, 9, 13, 19, 22, 28

COM

Analog Common. Connect to external circuit common using the lowest possible impedance.

8, 12, 16, 25, 29

VPS

Analog Positive Supply Voltage: 3.15 V to 3.45 V.

10, 11, 30, 31

INP2, INM2,

INM1, INP1

Differential Inputs. 1600 Ω input impedance.

14

OFDS

Offset Compensation Loop Disable. Pull high to disable the offset compensation loop.

15, 26

OFS2, OFS1

Offset Compensation Loop Capacitors. Connect capacitors to circuit common.

17, 18, 23, 24

OPP2, OPM2,

OPM1, OPP1

Differential Outputs. 30 Ω output impedance. Common-mode range is 0.7 V to 2.8 V; default is VPS/2.

20

VOCM

Output Common-Mode Setpoint. Defaults to VPS/2 if left floating.

21

GAIN

Analog Gain Control. 0 V to 1 V, 15.5 mV/dB gain scaling.

27

VICM

Input Common-Mode Voltage. VPS/2 V reference. Use to reference the optimal common-mode drive

to the differential inputs.

32

ENBL

Chip Enable. Pull high to enable.

EP

Exposed Paddle. Connect the exposed paddle to a low impedance ground pad.