BiM1 Pin
1, 3, 9, 10, 18 1, 3, 6
17
16
15
TX1H pin Name Function
0V Ground
VCC 3.8 – 15V DC power supply
5
-
RX
Pull low to enable Receiver
TX
EN
Pull low to enable Transmitter
Pull high to enable Transmitter
4
14
13
12
7
-
-
TXD
AF
DC coupled input for 3V CMOS logic. Rin = 100kΩ
500mV pk-pk audio. DC coupled, approx 0.8V bias
RXD Received Data output from the internal data slicer. Output will have
a rail to rail output swing (i.e. 0 -Vcc depending on the supply
voltage). Suitable for Biphase codes
11
-
RSSI DC level between 0.5V and 2V. 60dB dynamic range
NOTES:
1. RX and TX have internal (10kΩ approx.) pull-up to Vcc
2. EN pin should not be left floating
3. For Vcc greater than 9V, transmit duty cycle must be limited to 25% or less
4. Avoid RX and TX both low: undefined module operation (but damage will not result)
5. A 10mW UK version is available on 173.225MHz. (3-16V operation, 10mA TX)
6. Pin out is as BiM2. On RF connector end only pins 1, 2, 3, 9 are present.
Absolute maximum ratings
Exceeding the values given below may cause permanent damage to the module.
Operating temperature
Storage temperature
RF in (pin 1)
-10°C to +60°C
-30°C to +70°C
±50V @ <10MHz, +13dBm @ >10MHz
-0.3V to +16.0V
All other pins
Performance specifications:
(Vcc = 3.8V / temperature = 20°C unless stated)
General
pin
min.
typ.
max. units
notes
DC supply
Supply voltage (100mW BiM1T)
Supply voltage (10mW BiM1T, BiM1R)
TX Supply current (100mW)
TX Supply current (10mW)
RX Supply current
Antenna pin impedance
RF centre frequency (100mW)
RF centre frequency (10mW)
Channel spacing
17
17
17
17
17
2
3.8
3.0
-
-
80
25
8
50
15
16
V
V
mA
mA
mA
Ω
MHz
MHz
kHz
151.300
173.225
25
Number of channels
1
Transmitter
RF
RF power output (100mW)
RF power output (100mW)
Spurious emissions (100mW)
Spurious emissions (10mW)
Adjacent channel TX power (100mW)
Adjacent channel TX power (10mW)
Frequency accuracy
2
2
2
2
+19
+9
+20
+10
-40
+21
+11
dBm
dBm
dBm
dBm
dBm
1
1
EN 300 220-3
2
-37
TBD
0
2
3
4
-2.5
±2.5
+2.5
±3.5
kHz
kHz
FM deviation (peak)
±3.0
Baseband
Modulation bandwidth @ -3dB
TXD input level (logic low)
TXD input level (logic high)
Dynamic timing
0
5
kHz
V
V
14
14
0
3.0
5
5
TX select to full RF
5
ms
Radiometrix Ltd.,
BiM1 transceiver, TX1H high power transmitter data sheet
Page 4
RADIOMETRIX [ RADIOMETRIX LTD ]
