F1953 Datasheet

© 2022 Renesas Electronics Corporation

12

February 9, 2022

PACKAGE OUTLINE DRAWINGS

The package outline drawings for the 20-VFQFPN are located at the end of this document and are accessible from

the Renesas website. The package information is the most current data available and is subject to change without

revision of this document.

PIN DESCRIPTIONS

Pin #

Pin Name

Pin Function

1

D5

16dB Attenuation Control Bit. Pull high for 16dB ATTN.

2

RF1

Device RF input or output (bi-directional). Internally DC blocked.

3

DATA

Serial interface Data Input.

4

CLK

Serial interface Clock Input.

5

LE

Serial interface Latch Enable Input. Internal pull-up (100K ohm).

6

VDD

Power supply pin.

7

NC

No internal connection. These pins can be left unconnected, voltage applied, or

connected to ground (recommended).

8

NC

No internal connection. These pins can be left unconnected, voltage applied, or

connected to ground (recommended).

9

NC

No internal connection. These pins can be left unconnected, voltage applied, or

connected to ground (recommended).

10

NC

No internal connection. These pins can be left unconnected, voltage applied, or

connected to ground (recommended).

11

NC

No internal connection. These pins can be left unconnected, voltage applied, or

connected to ground (recommended).

12

NC

No internal connection. These pins can be left unconnected, voltage applied, or

connected to ground (recommended).

13

VMODE

Pull high for serial mode. Ground for Parallel control mode.

14

RF2

Device RF input or output (bi-directional). Internally DC blocked.

15

D4

8dB Attenuation Control Bit. Pull high for 8dB ATTN.

16

D3

4dB Attenuation Control Bit. Pull high for 4dB ATTN.

17

D2

2dB Attenuation Control Bit. Pull high for 2dB ATTN.

18

NC

No internal connection. These pins can be left unconnected, voltage applied, or

connected to ground (recommended).

19

D1

1dB Attenuation Control Bit. Pull high for 1dB ATTN.

20

D0

0.5dB Attenuation Control Bit. Pull high for 0.5dB ATTN.

EP

Exposed Paddle

Connect to Ground with multiple vias for good thermal relief.