OPERATION GUIDE
.
OG_STD-502-R_v09e
Circuit Design, Inc.
6
4. Terminal specifications
Terminal Terminal
Input/
Input/Output level (V)
No.
name
Output
Low
Hi
Internal equivalent circuit
Output
0 to 0.25
Vref -0.4 to Vref
1
CLK
TX: Synchronous CLK for TX data input
RX: Synchronous CLK for RX data output
Output
0 to 0.25
Vref -0.4 to Vref
2
DIV
This terminal shows which of the two receiving
terminals received the signal actually used for data
output. .
DIV
Data receiving
terminal
L
RF in
H
RF in/out
Input
0 - 0.25
Vcc -0.4 to Vcc
3
RST
The initialization terminal for coincidence detection
function*.
The internal ASIC is reset with ‘L’ level for more
than 100 μs.
Normally set this terminal to ‘H’.
* For details of the frame coincidence detection function,
refer to “Frame coincidence detection function” on page
16.
Input
0 to 0.25
Vref -0.4 to Vref
4
TXD
The input terminal for serial communication.
Settings for serial communication
Baud rate
19.2 kbps
Character bits
8 bits
Parity
none
Stop bits
2 bits
Terminal
Level
Translator
Terminal
Level
Translator
Terminal
Level
Translator
Terminal
Level
Translator
