Datasheet > X2011-868

X2011-868

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
RFSOLUTIONS		/
页数	文件大小	规格书
6页	65K
描述
FM Narrow Band Transceiver Modules

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X2011-868 数据手册

FM Narrow Band Transceiver Modules

X2010 / X2011

Pin Functional Description

Pin No.

1 & 3

Description Details

RF Ground

Antenna

Ideally connected to antenna ground plane.

Nominal 50 ohm input/output impedance capacitively isolated from

internal circuit.

4,5,6

Not connected internally on X2010 module.

X2010 : This is unconnected

Ground

X2011 : RF Ground.

RSSI

Receiver signal strength indicator. DC voltage proportional to the RF

signal strength being received.

9,10,18

Ground

Supply ground points.

Carrier detect output, active low.

RxD

Receiver data output ( CMOS logic out )

Audio frequency output.

TxD

Transmitter data input.

Tx Enable

Rx Enable

Vcc

Active low, applying Vcc disables the transmitter.

Active low, applying Vcc places the receiver in sleep mode.

Supply voltage.

State Table

Tx (pin 15) Rx (pin 16)

Mode

Power down mode. Supply current <1uA

Receiver only enabled. Data, AF, CD and RSSI outputs valid.

Transmitter only enabled. Tx data input valid.

Tx and Rx enabled. This mode is to be avoided as damage to the

module will eventually occur.

RSSI Output

The RSSI output provides a dc voltage that is proportional to the RF signal strength picked up on the

antenna (pin 2) port of the module.

The table below gives typical values of RSSI for varying degrees of RF signal strength applied

RSSI (V)

0.82

0.88

1.12

1.43

1.75

2.06

2.36

2.57

2.6

RF Input (dBm)

-105

-100

-90

-80

-70

-60

-50

-40

-30

-20

2.6

DS2010_2

Dec ‘01

Ó2001 REG No 277 4001, England.

Page 5

1 2 3 456

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