ADRF5250 Data Sheet
Rev. 0 | Page 6 of 15
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
2
1
3
4
5
6
18
17
16
15
14
13
GND
RF4
GND
GND
RF5
GND
GND
RF1
GND
VDD
V1
V2
8
9
10
11
7
RF3
GND
GND
RF2
12
GND
GND
20
19
21
VSS
V3
GND
22
RFC
23
GND
24
GND
ADRF5250
TOP VIEW
(Not to Scale)
NOTES
1. EXPOSED PAD. THE EXPOSED PAD MUST
BE CONNECTED TO THE RF/DC GROUND OF
THE PCB.
15506-002
Figure 2. Pin Configuration
Table 3. Pin Function Descriptions
Pin No. Mnemonic Description
1, 3, 4, 6, 7, 9,
10, 12, 13, 15,
21, 23, 24
GND Ground. These pins must be connected to the RF/dc ground of the printed circuit board (PCB).
2 RF5 RF Throw Port 5. This pin is dc coupled and no dc blocking capacitor is necessary when the RF line potential
is within 0 V dc.
5 RF4 RF Throw Port 4. This pin is dc coupled and no dc blocking capacitor is necessary when the RF line potential
is within 0 V dc.
8 RF3 RF Throw Port 3. This pin is dc coupled and no dc blocking capacitor is necessary when the RF line potential
11 RF2 RF Throw Port 2. This pin is dc coupled and no dc blocking capacitor is necessary when the RF line potential
is within 0 V dc.
14 RF1 RF Throw Port 1. This pin is dc coupled and no dc blocking capacitor is necessary when the RF line potential
is within 0 V dc.
16 VDD Positive Supply Voltage.
17 V1 Digital Input Voltage Applied to the Least Significant Bit (LSB) of Digital Interface for Controlling RF Path
State. See Table 5.
18 V2 Digital Input Voltage Applied to the Second Bit of Digital Interface for Controlling RF Path State. See Table 5.
19 V3 Digital Input Voltage Applied to the Most Significant Bit (MSB) of Digital Interface for Controlling RF Path
State. See Table 5.
20 VSS Optional Negative Supply Voltage. This pin can be connected to ground to operate with the internal
negative voltage generator. The internal negative voltage generator is disabled when this pin is connected
to an external 3.3 V supply.
22 RFC RF Common Port. This pin is dc-coupled and no dc blocking capacitor is necessary when the RF line
potential is within 0 V dc.
EPAD Exposed Pad. The exposed pad must be connected to the RF/dc ground of the PCB.