Condensed specifications
Frequency
433.925MHz – CHAN0 (default channel)
433.285MHz – CHAN1
433.605MHz – CHAN2
434.245MHz – CHAN3
434.565MHz – CHAN4
Frequency stability
Channel width
±10kHz
320kHz
Number of channels
Supply Voltage
Current
1 of 5, user programmed
5V
50mA transmit
22mA receive/idle
Operating temperature
-20 °C to +70 °C (Storage -30 °C to +80 °C)
Compliant with Australian/New Zealand AS/NZS 4268:2003
Regulation
Interfaces
User
9pin 0.1" pitch molex
3pin 0.1" pitch molex
37 x 26 x 8mm
RF
Size
Transmitter
Output power
+14dBm (25mW) ±1dB
<4ms
16kbps bi-phase FSK
+/-22KHz
TX on switching time
Modulation type
FM peak deviation
TX spurious
<-40dBm
Receiver
Sensitivity
image
-105dBm for 1% BER
-40dB
spurious / adjacent channel
Blocking
LO re-radiation
-60dB
-80dB nominal
<-60dBm
Interface
Data rate
Format
Levels
Buffers
9600baud, Half duplex
1 start, 8 data, 1 stop, no parity
5V CMOS (inverted RS232. Mark = 5V = idle)
32 byte FIFO
Flow control
Addressing
None (‘RX busy’ pin provided)
1 of 8, user programmed
Data latency
14ms (first byte into TX, to first byte out of RX)
Radiometrix Ltd
TDH2 Data Sheet
page 8
RADIOMETRIX [ RADIOMETRIX LTD ]
