Horizon Hobby DSMTX10 Users manual

X1TXM 2.4GHz DSSS Module User Manual.

Horizon Hobby Inc.,

1657 Country Club Dr.,

Milpitas CA 95035 USA

408 945 9800

1. Features

• 2.4Ghz Direct Sequence Spread Spectrum (DSSS) radio transceiver module.

• Operates in the unlicensed worldwide ISM band (2.4 GHz to 2.483.5GHz) band

• Fully integrated power regulation with a wide input unregulated operating range

2.4 to 3.6V.

• Fully integrated local oscillator and 12MHz 20ppm reference crystal

• 200mA operating current

• Transmit power up to 100mW EIRP

• Receive sensitivity up to -95dBm

• DSSS data rates up to 250kbps

• 1 mile operating range

• Full packet assembling and disassembling

• Auto transaction sequencer

• Fully buffered digital interface with high voltage tolerant inputs

2. Pin description

Pin Number Name Description

1 GND Module Ground
2 VDD Module power input
3 IRQ Interrupt Request
4 RST Reset, active High
5 MOSI Master out, slave In data
6 nSS Slave Select, Active Low
7 SCLK SPI data clock
8 MISO Master in, slave out data
9 GND Module Ground
10 XOUT Clock output from module
11 TXRX Switch antenna to transmit direction
12 RXTX Switch antenna to receive direction

3. Specifications

Parameter Value Units
Storage Temp -65 to 105 Degrees Celsius
VDD 2.4 to 3.6 Volts
Receive Sensitivity -95 dBm
Transmit power (conducted) 17 dBm MAX
Transmit power (radiated) 19 dBm MAX
Idle current 1 mA
Receive current 22 mA
Transmit current 200 mA

4. Block Diagram

System

Interface

CYWUSB6936 DSSS

2.4GHz Radio

SE2550BL Power

Amplifier

2dBi

Antenna

Interface

Buffer

FCC ID: BRWDSMTX10

Framer

Power

Regulator

DSSS

Modem

VCO

Xtal

12MHz

Power

Regulator

Horizon Hobby

X1TXM

Module Block Diagram

5. Module User Requirements

5.1 This module must be integrated into a device where the user cannot access the
antenna connector.

5.2 Only a 2dBi antenna can be used with this module. The antenna must meet and not
exceed the gain and pattern of the supplied Inpaq DAM00BM11500209 folded dipole
antenna.

5.3 Changes or modifications to the module that are not expressly approved by Horizon
Hobby could void the user’s authority to operate the equipment.

5.4 The device must contain the following permanent labeling on the exterior of the
device as follo ws: