CML Semiconductor Products PRODUCT INFORMATION FX529 FFSK Modem for Trunked Radio Systems Product Summary Features PAA 1382 and General Purpose Trunked Radio Applications Frame SYNC/SYNT Detection Preamble Generation Meets ETSI I-ETS 300 230 Binary Signalling Specification µProcessor Compatible Interface Carrier Detection On-Chip Full-Duplex 1200 Baud Operation General Purpose Timer High Intelligence Error Check Word Generation Error Checking in Receive CARRIER DETECT TIME CONSTANT DATA Rx MESSAGE FORMAT RECEIVER INPUT RECOVERED CLOCK MICROPROCESSOR INTERFACE STROBE R/W A1 A0 D7 D6 D5 D4 D3 D2 D1 D0 BYTE COUNTER SYNC/SYNT DETECTOR FFSK RECEIVER Rx CARRIER DETECT DATA CHECKSUM COUNTER HI LO Rx DATA REGISTER Rx DATA BUFFER 8-bit µP BUS CHECKSUM GENERATOR Rx ENABLE Tx ENABLE Rx MESSAGE FORMAT Tx PARITY ENABLE Tx DATA REGISTER FFSK TRANSMITTER VDD VBIAS Tx PARITY ENABLE FX529 TRANSMITTER OUTPUT BYTE COUNTER CLOCKS Rx DATA RDY Tx DATA RDY SYNC SYNT Tx IDLE XTAL/CLOCK CLOCK GENERATORS STATUS REGISTER SYNC SYNT Rx DATA READY Rx CARRIER DETECT Rx CHECKSUM TRUE Tx DATA READY Tx IDLE TIMER EXPIRED Tx DATA BUFFER CONTROL REGISTER 1200/2400 Baud Rx CHECKSUM TRUE TIMER INTERRUPT IRQ GENERATOR XTAL VSS 1.008 MHz OUTPUT Brief Description The FX529 is a single-chip CMOS 1200 baud FFSK Modem, designed primarily for use in trunked radio systems but may also be employed in other general purpose radio or line data communication applications. This device conforms to both the PAA 1382 French trunked radio, and the proposed ETSI I-ETS 300 230 “Binary Interchange of Information and Signalling” specifications. The FX529 is full duplex at 1200 baud and includes an 8-bit parallel microprocessor interface and a programmable timer which may be set for interrupt periods of between 8 and 120 bits. Preamble data and an error-check word are automatically generated in the transmit mode. Error checking is performed and the 16-bit SYNC (“1011010000110011”) or SYNT (“0100101111001100”) word detected in the receive mode. An on-chip Xtal/clock generator requiring an external 4.032MHz Xtal or clock input provides all microcircuit filter sampling clocks and modem timings whilst also supplying a “Clock “ 4” output (1.008MHz). Pin and function compatible with the FX429, the FX429 data sheet should be consulted when using this device The FX529, which has a powersaving facility, requires a single 5-volt power supply and is available in both cerdip DIL and plastic SMD packages. 1 FX529 - Brief Specification Function FFSK Modem for trunked radio systems Supply Voltage Range 4.5 to 5.5 volts Supply Current (5.0V) 7.0 mA maximum Control 8-bit parallel Duplex Full Data Rate 1200 baud Xtal/Clock Frequency 4.032 MHz Package Styles 24-pin cerdip DIL (FX529J) 24-pin PLCC (FX529LG) 24-pin PLCC (FX529LS) VDD VBIAS TRANSMIT OUTPUT RECEIVE INPUT VDD 1 24 2 23 3 22 4 21 5 20 6 19 'CD' TIME CONSTANT XTAL/CLOCK 7 XTAL 8 17 9 16 10 15 11 14 12 13 D0 D1 D2 D3 VSS D0 D1 D2 FX529J D3 D4 CLOCK 4 VSS IRQ A2 STROBE A1 18 D5 A0 D7 D6 D5 D4 D6 D7 MICROPROCESSOR DATA INTERFACE Package Styles Available FX529J 24-pin cerdip DIL (J4) FX529LG 24-pin quad plastic encapsulated bent and cropped (L1) FX529LS 24-lead plastic leaded chip carrier (L2) Full details of this product are available from CML or its distributors CML does not assume any responsibility for the use of any circuitry described. No circuit patent licences are implied and CML reserves the right at any time without notice to change the said circuitry. 2 VSS CML Microcircuits COMMUNICATION SEMICONDUCTORS CML Product Data In the process of creating a more global image, the three standard product semiconductor companies of CML Microsystems Plc (Consumer Microcircuits Limited (UK), MX-COM, Inc (USA) and CML Microcircuits (Singapore) Pte Ltd) have undergone name changes and, whilst maintaining their separate new names (CML Microcircuits (UK) Ltd, CML Microcircuits (USA) Inc and CML Microcircuits (Singapore) Pte Ltd), now operate under the single title CML Microcircuits. These companies are all 100% owned operating companies of the CML Microsystems Plc Group and these changes are purely changes of name and do not change any underlying legal entities and hence will have no effect on any agreements or contacts currently in force. CML Microcircuits Product Prefix Codes Until the latter part of 1996, the differentiator between products manufactured and sold from MXCOM, Inc. and Consumer Microcircuits Limited were denoted by the prefixes MX and FX respectively. These products use the same silicon etc. and today still carry the same prefixes. In the latter part of 1996, both companies adopted the common prefix: CMX. This notification is relevant product information to which it is attached. Company contact information is as below: CML Microcircuits (UK)Ltd CML Microcircuits (USA) Inc. CML Microcircuits (Singapore)PteLtd COMMUNICATION SEMICONDUCTORS COMMUNICATION SEMICONDUCTORS COMMUNICATION SEMICONDUCTORS Oval Park, Langford, Maldon, Essex, CM9 6WG, England Tel: +44 (0)1621 875500 Fax: +44 (0)1621 875600 [email protected] www.cmlmicro.com 4800 Bethania Station Road, Winston-Salem, NC 27105, USA Tel: +1 336 744 5050, 0800 638 5577 Fax: +1 336 744 5054 [email protected] www.cmlmicro.com No 2 Kallang Pudding Road, 09-05/ 06 Mactech Industrial Building, Singapore 349307 Tel: +65 7450426 Fax: +65 7452917 [email protected] www.cmlmicro.com D/CML (D)/1 February 2002