Data Sheet

ADRF5238

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

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Rev. 0 | 8 of 13

Figure 4. Pin Configuration

Table 6. Pin Function Descriptions

Pin No.

Mnemonic

Description

1, 3, 4, 6, 10, 12

GND

Grounds. The package bottom has an exposed metal pad that must connect to the PCB RF ground.

2

RFC

RF Common Port. The RFC pin is DC-coupled and matched to 50Ω. A DC blocking capacitor is required on this pin. See Figure 5 for the

interface schematic.

5

RF2

RF Throw Port 2. The RF2 pin is DC-coupled and matched to 50Ω. A DC blocking capacitor is required on this pin. See Figure 5 for the

interface schematic.

7

CTRL

Control Input Pin. See Figure 6 for the CTRL interface schematic.

8

EN

Enable Input Pin. See Figure 7 for the EN interface schematic.

9

VDD

Supply Voltage Pin. See Figure 8 for the interface schematic.

11

RF1

RF Throw Port 1. The RF1 pin is DC-coupled and matched to 50Ω. A DC blocking capacitor is required on this pin. See Figure 5 for the

interface schematic.

EPAD

Exposed Pad. Exposed pad must be connected to RF and DC ground.

INTERFACE SCHEMATICS

Figure 5. RFC, RF1, and RF2 Interface Schematic

Figure 6. CTRL Interface Schematic

Figure 7. EN Interface Schematic

Figure 8. VDD Interface Schematic