Application circuits
Interfacing a i9600 to a Transceiver
5V
supply
RF
Vcc
TX SELECT
RX SELECT
TXD
Transceiver
NC
TXE
RXE
OSC1
OSC2
VDD
TXD
NC
RXD
Test
15pF
15pF
GND
JP1
20.48MHz
4k7
SETUP
NC
100
Ω
VSS
NC
RSTXD
100nF
NC
RSRXD
BUSY
RXD
Figure 5: i9600 interfaced to a Transceiver (e.g. BiM3A)
Interfacing a i9600 to an RS232 port
5V
supply
RF
Vcc
TX SELECT
RX SELECT
TXD
Transceiver
NC
TXE
RXE
OSC1
OSC2
VDD
TXD
NC
RXD
+5V
Test
SETUP
NC
15pF
15pF
GND
JP1
20.48MHz
RS232 driver
e.g: MAX232
1
DCD
DSR
100
Ω
RXD
TXD
VSS
NC
TXD
CTS
5V
4k7
RSTXD
9
100nF
5
NC
RSRXD
BUSY
RXD
GND
Figure 6: i9600 + transceiver interfaced to an RS232 port via an RS232 line driver/receiver
BUSY pin in this can be connected to CTS, DSR and DCD pin to simulate a flow control signal.
i9600 is capable of continuously streaming data at 9600bps. Therefore, BUSY pin is not asserted to stop
the Host from sending data as in normal RTS/CTS flow control method, but merely to warn the host
that there is already data in the receive buffer which need to be downloaded before sending any more
data.
Some DTE hosts assert DTR signal when they are active and this can be used via RS232 line receiver to
enable i9600. Otherwise the ENABLE must be physically pulled-low to activate the i9600.
Radiometrix Ltd
i9600 Data Sheet
page 5
RADIOMETRIX [ RADIOMETRIX LTD ]
