MDEV-868-PRC datasheet(9/55 Pages) LINX

9 / 55 page

–

0.45"

(11.43)

0.812"

(20.62)

0.116"

(2.95)

0.271"

(6.88)

0.195"

(4.96)

0.078"

(1.98)

Module Dimensions

Figure 17: HumPRCTM Series Transceiver Dimensions

0.45"

(11.43)

0.55"

(13.97)

0.07"

(1.78)

Figure 18: HumPRCTM Series Transceiver Encapsulated Version Dimensions

Pin Descriptions

Pin Number

Name

I/O Description

LATCH_EN

If this line is high, then the status line

outputs are latched (a received command

to activate a status line toggles the output

state). If this line is low, then the output lines

are momentary (active for as long as a valid

signal is received). Do not leave floating.

ANTENNA

—

50-ohm RF Antenna Port

VCC

—

Supply Voltage

RESET2

This line resets the module when pulled

low. It should be pulled high for normal

operation. Leave unconnected to minimize

leakage current.

LNA_EN

Low Noise Amplifier Enable. This line is

driven high when receiving. It is intended to

activate an optional external LNA.

PA_EN

Power Amplifier Enable. This line is driven

high when transmitting. It is intended to

activate an optional external power amplifier.

CMD_DATA_OUT

Command Data Out. Output line for the

serial interface commands

CMD_DATA_IN

Command Data In. Input line for the serial

interface commands. If serial control is not

used, this line should be tied to supply to

minimize current consumption.

ACK_EN

Pull this line high to enable the module to

send an acknowledgement message after

a valid control message has been received.

Do not leave floating.

PB1

A high on this line initiates the Join Process,

which causes two units to accept each

other’s transmissions. It is also used with

a special sequence to reset the module to

factory default configuration.

MODE_IND

This line indicates module activity. It can

source enough current to drive a small

LED, causing it to flash. The duration of the

flashes indicates the module’s current state.

ACK_OUT

This line goes high when the module

receives an acknowledgement message

from another module after sending a control

message.

These lines have an internal 20k

Ω pull-down resistor

These lines have an internal 10k

Ω pull-up resistor

Figure 16: HumPRCTM Series Transceiver Pin Descriptions

MDEV-868-PRC Datasheet(PDF) 9 Page - Linx Technologies

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