



SLWS024- AUGUST 1995
FLEX and Motorola are trademarks of Motorola,Inc.
The TLV5591 signal processor is a FLEXTMsignal processor that takes full advantage of the Motorola® FLEX paging protocol. This low-current device operates at synchronous data rates of 1600, 3200, and 6400 bits per second (bps) using a 76.8 kHz oscillator. This device is readily integrated with standard off-the-shelf electronic pager components thereby reducing start-up costs associated with pager manufacturing. An industry standard serial peripheral interface (SPI) transports simultaneous bidirectional 32-bit data packets between the TLV5591 and the host processor.
As a FLEX protocol decoder, the internal TLV5591 receiver control component makes use of 6-stage warm-up, 2-stage locking, and 3-stage warm-down sequences. This control information is passed to the receiver using six programmable data output lines. Warm-up control allows testing of battery condition, setting output line state, RF receiver power-on time, and other elements of a pager. The 2-stage locking sequence handles requirements associated with received FLEX signal baud rate changes. The warm-down control sets the program selectable time period when signal processing is complete, and the receiver can power-off. Battery condition can be checked, and the output line state can be changed under warm down control.
View more information about generic part numbers:TLV5591
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