CMLMICRO FX529

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
uk.sales@cmlmicro.com
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
us.sales@cmlmicro.com
www.cmlmicro.com
No 2 Kallang Pudding Road, 09-05/
06 Mactech Industrial Building,
Singapore 349307
Tel: +65 7450426
Fax: +65 7452917
sg.sales@cmlmicro.com
www.cmlmicro.com
D/CML (D)/1 February 2002