F6921 Datasheet

R35DS0092EU0102 Rev.1.02

Nov 14, 2024

Page 4

1. Pin Information

1.1 Pin Assignments

Figure 2. Pin Assignments for 2.7 × 2.7 mm 23-pin FCBGA Package – Top View

1.2 Pin Descriptions

Pin Number

Name

Type

I/O

Description

A1, A2, A5,

B3, B4,

C1, C2, C3, C4, C5,

D3, D4,

E1, E2, E5

GND

Ground

–

DC and RF ground.

A3

VDD1

Power

Input

Positive supply voltage input for channel 1. Channel 2

must also be enabled by powering VDD2 for channel 1 to

be operable.

E3

VDD2

Power

Input

Positive supply voltage input for channel 2. For single

channel operation of channel 2, channel 1 must be

disabled by either floating or grounding VDD1.

A4, E4

IREF

Power

Input

Reference bias current input, tied to a common node

shared by channels 1 and 2. Connect directly to a current

source, voltage source through a resistor, or to the IBx

pin of the F61xx.

B1

RFI1

Analog

Input

Channel 1 RF input port.

D1

RFI2

Analog

Input

Channel 2 RF input port.

B5

RFO1

Analog

Output

Channel 1 RF output port.

D5

RFO2

Analog

Output

Channel 2 RF output port.