Radiometrix Ltd

LMT0/LMR0 Data Sheet

page 8

Condensed specifications

Frequency

26.995, 27.045, 27.095, 27.145, 27.195, 27.255MHz (Standard)

Any 0.5MHz wide sub-band in 26-28MHz (General)

Frequency stability LMT0

LMR0

±1.0kHz

±0.5kHz

Channel spacing

10kHz

Number of channels

6 channels (standard)

16 channels controlled by parallel port or 32 via serial 4V level

UART interface

Operating temperature

-20 ºC to +70 ºC (Storage -30 ºC to +70 ºC)

Spurious radiations

Compliant with ETSI EN 300 220-2 and EN 301 489-3

Meets FCC Part 95

Transmitter

Output power

+10dBm (10mW) ±1dB nominal [factory fixed RF power variants]

+20dBm (100mW) ±1dB nominal

Peak deviation

±1.2kHz

TX on switching time

30ms from TXE transition

Modulation type

FSK (F3D)

TX modulation bandwidth

DC – 4kHz (CMOS compatible)

Adjacent channel TX power

<-37dBm

TX spurious

<-40dBm

(<-54dBm in forbidden bands)

No RF output in Standby

Supply

Voltage

4.1V – 15V

Current

40mA for 10mW transmission

100mA for 100mW transmission

<5

A standby (TXE high or floating)

Inputs

Data (CMOS/TTL compatible)

Size

33 x 23 x 9mm

Interface

User

10 (8) pin 0.1" pitch dual row (5+5) header

RF

2pin 0.1” pitch

Recommended PCB hole size

1.2mm

Receiver

Sensitivity

-115dBm for 12dB SINAD

Image, Spurii

<-60db

Blocking

Better than 90dB

LO re-radiation

-70dBm

Supply

Voltage

3.1V – 15V

Current

20mA receive

<1

A standby (RXE low)

Outputs

RSSI, audio, data (quasi DC data recovery circuit)

Size

46 x 23 x 9 mm

Interface

User

10 pin 0.1" pitch dual row (5+5) header

RF

2pin 0.1” pitch

Recommended PCB hole size

1.2mm