SM8211M Datasheet (Nippon Precision Circuits Inc)

SM8211M, POCSAG Decoder

Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 I:Input O:Output NIPPON PRECISION CIRCUITS *2 Name XVDD BS1 BS2 BS3 VDD TEST1 TEST2 TX-CLK TX-DATA BREAK RST RX-DATA BACKUP SIG-IN VSS ADD-DET RX-CLK SYN-VAL XT XTN I/O * O O O * I I I I I I O I I * O O O I O De

SM8211M NIPPON PRECISION CIRCUITS INC.

POCSAG Decoder For Pagers OVERVIEW The SM8211M is a POCSAG-standard (Post Ofﬁce Code Standardization Advisory Group) signal processor LSI, which conforms to CCIR recommendation 584 concerning standard international wireless calling codes.

The SM8211M supports call messages in either tone, numerical or character outputs at signal speeds of 512 bps or 1200 bps using a 76.8 kHz system clock, or 2400 bps using a double-speed 153.6 kHz system clock.

Note that

SM8211M Features

* s s s s TX-CLK TX-DATA BREAK s s 4 4 0.68 0.12 s s s s s s NIPPON PRECISION CIRCUITS

* 1 0.15

* 0.10 + 0.05 0.30 0.15 1.80 0.05 0.60 0.15 s Conforms to POCSAG standard for pagers 512 or 1200 bps signal speed Supports tone, numeric or character call messages Battery-savi