RPC-UHF RADIOMETRIX [Radiometrix Ltd], RPC-UHF Datasheet - Page 27

• Manufacturer Part Number: RPC-UHF
• Description: Radio Packet Controller
• Manufacturer: RADIOMETRIX [Radiometrix Ltd]

The RPC as a control IC
Clock frequency
All timings within the RPC (except sleep) are determined by the clock frequency. The standard
frequency is 10.24MHz and all timings unless explicitly stated otherwise, assume this clock frequency.
Clock accuracy
The RPC uses synchronous data transmission and requires an accurate reference clock. In the worst
case , max. preamble and packet length, the allowable bit rate timing error between transmitter and
receiver is 0.2 bits in 1000 bits, i.e. +/-200ppm total or +/-100ppm at each end.
Accuracy, temp drifts MUST KEEP X-TAL +/- 100ppm of nominal
Radiometrix Ltd, RPC
The data rate =
BIT TIME
PPENDIX
figure 18: RPC-000-SO & RPC-000-DIL outlines
=
256
f
xtal
256
f
clk
Hz
bit / s
i.e. 10.24 MHz crystal = 25.0µs PER BIT
( i.e. 40kbit/s for Fclk=10.24MHz)
page 27