RFHCS362FT-I データシートの表示（PDF） - Microchip Technology

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RFHCS362FT-I

KEELOQ® Code Hopping Encoder with UHF ASK/FSK Transmitter

Microchip Technology 

rfHCS362G/362F

TABLE 2-1: rfHCS362G/362F PINOUT DESCRIPTION

Name

SOIC SSOP I/O/P

Pin # Pin # Type

Description

ANT1

10

11

O Antenna connection to differential power amplifier output, open

collector.

ANT2

9

10

O Antenna connection to differential power amplifier output, open

collector.

CLKOUT

6

7

O Clock output.

DATA

17

19

I/O Encoder data output pin or serial programming.

DATAFSK

—

15

I FSK data input.

FSKOUT

—

16

O FSK crystal pulling output.

LED/SHIFT

2

2

I/O Current limited LED driver. Input sampled before LED driven.

LF

13

14

— External loop filter connection. Common node of charge pump

output and VCO tuning input.

PS/DATAASK

7

8

I Power select and ASK data input.

RFENIN

5

6

I Transmitter and CLKOUT enable. Internal pull-down.

S0

3

3

I Switch input 0 with internal pull-down.

S1

4

4

I Switch input 1 with internal pull-down.

S2

15

17

I Switch input 2 with internal pull-down or Schmitt Trigger clock

input during serial programming.

S3/RFEN

16

18

I/O Switch input 3 with internal pull-down or RF enable output as

selected by RFEN option in configuration word SEED_3.

VDD

1

1

P Positive supply for encoder

VDDRF

8

9

P Positive supply for transmitter.

VSS

18

20

P Ground reference for encoder

VSSRF

11

12

P Ground reference for transmitter.

XTAL

14

5

I Transmitter crystal connection to Colpitts type crystal oscillator.

Legend: I = input, O = output, I/O = input/output, P = power

© 2011 Microchip Technology Inc.

DS41189B-page 9

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