STEL-9244

· Burst QPSK demodulation
· Data rate is 2.56 Mbps
· Tunable 5 - 40 MHz RF input frequency for system flexibility
· Fast acquisition time to minimize channel overhead; short preamble & short guard time between bursts
· MAC friendly features (see Page 9)

Data bit length per burst is programmable by the user for compatibility with ATM and other packet lengths. The bit rate is 2.56 Mbps for optimal T1 data and telephony performance.

The STEL-9244 (STEL-9244A for the final version using a custom ASIC in place of the two Altera FPGAs) is a burst QPSK receiver designed for fast acquisition of closely spaced TDMA burst signals. Figure 1 below is a simplified block diagram.