Data Sheet

ADF5709

Rev. A | Page 5 of 9

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

2

NC

3

NC

4

5

NC

6

NC

1

NC

13

NC

14

GND

15

RFOUT

16

GND

17

NC

18

NC

19

20

21

22

23

24

7

8 9 10 11 12

ADF5709

TOP VIEW

(Not to Scale)

NOTES

1. NC = NO CONNECT. HOWEVER, THESE PINS CAN BE CONNECTED

TO RF OR DC GROUND WITHOUT AFFECTING THE PERFORMANCE

OF THE DEVICE.

2. EXPOSED PAD. THE PACKAGE BOTTOM HAS AN EXPOSED METAL

PAD THAT MUST BE CONNECTED TO RF OR DC GROUND.

Figure 2. Pin Configuration

Table 5. Pin Function Descriptions

Pin No.

Mnemonic

Description

1 to 3, 5 to 11, 13, 17 to 24

NC

No Connect. However, these pins can be connected to RF or dc ground without affecting the

performance of the device.

4

Control Voltage and Modulation Input. The modulation bandwidth is dependent on the drive

source impedance.

12

Supply Voltage (5 V dc).

14, 16

GND

Ground. The GND pins must be connected to RF or dc ground.

15

RFOUT

RF Output. The RFOUT pin is ac-coupled and a VSWR load of ≤2.0:1 must be maintained across

frequency. Connect a 100 nF coupling capacitor to the RFOUT pin for protection.

EP

Exposed Pad. The package bottom has an exposed metal pad that must be connected to RF or

dc ground.

INTERFACE SCHEMATICS

1.4pF

13.6pF

50Ω

3.7pF

27pF

12pF

20Ω

1.9Ω

GND

Figure 5. GND Interface

RFOUT

Figure 6. RFOUT Interface