SP3508EB Exar Corporation, SP3508EB Datasheet

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SP3508EB

Manufacturer Part Number
SP3508EB
Description
LIN Transceivers 20Mbps Multiprotocol Transceiver 8Ch 3.3V
Manufacturer
Exar Corporation
Series
-r
Datasheets

Specifications of SP3508EB

Main Purpose
Interface, Transceiver RS-232, RS-449, EIA-530(A), X.21
Embedded
No
Utilized Ic / Part
SP3508
Primary Attributes
Internal Line or Digital Loopback Testing
Secondary Attributes
8 Drivers and 8 Receivers
Lead Free Status / Rohs Status
 Details
FEATURES
The SP3508 Evaluation Board is designed to analyze the SP3508 multi-protocol transceivers.
The evaluation board provides access points to all of the driver and receiver I/O pins so that
the user can measure electrical characteristics and waveforms of each signal. The SP3508
Evaluation Board also includes a DB-25 serial port connector which is configured to a EIA-530
pinout. This allows easy connections to other DTE or DCE systems as well as network
analyzers. The evaluation board also has a set of jumpers to allow the user to select the mode
of operation and test the data latch feature. Furthermore, the SP3508 Evaluation Board
provides the means to test both local and remote driver/receiver Loopback as well as evaluate
the SP3508 in a DCE or DTE configuration.
This Manual is split into sections to give the user the information necessary to perform a
thorough evaluation of the SP3508. The Board Schematic and Layout section describes
the I/O pins, the jumpers and the other components used on the evaluation board. The
board schematic, layout diagram and DB-25 connector are also covered in the Board
Schematic and Layout section. The Using the SP3508 Evaluation Board section details
the configuration of the SP3508 evaluation board for parametric testing.
Date: 8/26/04
Easy Evaluation of SP3508 Multi-Protocol
Eight (8) Drivers and Eight (8) Receivers
Current Mode V.35 Drivers
Internal Line or Digital Loopback
Internal Transceiver Termination Resistors for
Termination Network Disable Option
Fast 20Mbps Differential Transmission Rates
Adheres to CTR1/CTR2 Compliancy Requirements
Interface modes:
Transceiver
V.11 and V.35
RS-232(V.28)
X.21(V.11)
RS-449/V.36(V.10&V.11)
EIA-530(V.10&V.11)
EIA-530A(V.10&V.11)
V.35(V.35&V.28)
®
SP3508 Evaluation Board Manual
Evaluation Board Manual
1
SP3508
© Copyright 2004 Sipex Corporation
DESCRIPTION

Related parts for SP3508EB

SP3508EB Summary of contents

Page 1

FEATURES Easy Evaluation of SP3508 Multi-Protocol Transceiver Eight (8) Drivers and Eight (8) Receivers Current Mode V.35 Drivers Internal Line or Digital Loopback Internal Transceiver Termination Resistors for V.11 and V.35 Termination Network Disable Option Fast 20Mbps Differential Transmission Rates ...

Page 2

Figure 1 Date: 8/26/04 SP3508 Evaluation Board Manual 2 JP41 JP33 JP40 JP32 JP31 JP39 JP38 JP30 JP29 JP37 JP28 JP36 JP27 JP35 JP26 JP34 © Copyright 2004 Sipex Corporation ...

Page 3

BOARD LAYOUT 1. The SP3508 Evaluation Board has been designed to easily and conveniently provide access to all inputs and outputs under test. 2. Figure schematic of the evaluation board. The schematic shows the location of the ...

Page 4

Figure 3. SP3508 Evaluation Board Layout N Date: 8/26/ ...

Page 5

Figure 4. SP3508 Evaluation Board Ground Plane Figure 5. SP3508 Evaluation Board V Date: 8/26/04 Plane CC SP3508 Evaluation Board Manual 5 © Copyright 2004 Sipex Corporation ...

Page 6

Figure 6. SP3508 Evaluation Board Layout Bottom Layer Date: 8/26/04 SP3508 Evaluation Board Manual 6 © Copyright 2004 Sipex Corporation ...

Page 7

TABLE 1. EIA-232 Signal Name source Mnemonic Shield — — Transmitted data DTE BA Received Data DCE BB Request To Send DTE CA Clear To Send DCE CB DCE Ready (DSR) DCE CC DTE Ready (DTR) DTE CD Signal Ground ...

Page 8

Recommended Equipment • Oscilloscope • Digital multimeter • Signal Generator capable of >40MHz • Communications Analyzer (such as Firebird 6000) Parametric Evaluation Located on the board are two pins identified as VCC and SIGNAL GND. Connect VCC to a +3.3V ...

Page 9

Driver/Receiver Remote Loopback The following example uses the ST driver looped back into the TxC receiver. Use the 3 bit decoder to configure the SP3508 for the desired protocol. Connect a jumper cable between the ST(a) pin and the TxC(a) ...

Page 10

TABLE 2 Driver V.35 EIA-530 Output Pin Mode Mode MODE (D0,D1,D2) 001 010 T1OUT(a) V.35 V.11 T1OUT(b) V.35 V.11 T2OUT(a) V.35 V.11 T2OUT(b) V.35 V.11 T3OUT(a) V.35 V.11 T3OUT(b) V.35 V.11 T4OUT(a) V.28 V.11 T4OUT(b) High-Z V.11 T5OUT(a) V.28 V.11 ...

Page 11

Figure 8 shows 3-pin jumper configuration and Table 5 describes the fuctionalities of each jumper setting configuration. TABLE 5. SP3508 LOGIC JUMPER SETTING Switch Jumper LOGIC 1 D0 JP22 VCC (2-3) D1 JP23 VCC (2-3) D2 JP24 VCC (2-3) LOOPBACK ...

Page 12

Pin Number Pin Name Description 1 GND Signal Ground 2 SDEN TxD Driver Enable Input 3 TTEN TxCE Driver Enable Input 4 STEN ST Driver Enable Input 5 RSEN RTS Driver Enable Input 6 TREN DTR Driver Enable Input 7 ...

Page 13

Model SP3508CF ........................................................ 0°C TO +70°C ..................................... 100-pin JEDEC LQFP SP3508CEB ..................................................... 0°C TO +70°C ............................... SP3508 Evaluation Board Corporation ANALOG EXCELLENCE Sipex Corporation Headquarters and Sales Office 233 South Hillview Drive Milpitas, CA 95035 TEL: (408) 934-7500 FAX: (408) ...

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