Electronic Components Datasheet Search |
|
SP310ACP Datasheet(PDF) 4 Page - Sipex Corporation |
|
SP310ACP Datasheet(HTML) 4 Page - Sipex Corporation |
4 / 8 page SP231ADS/01 SP231A Enhanced RS-232 Line Drivers/Receivers © Copyright 2000 Sipex Corporation 4 Figure 1. Charge Pump Voltage Doubler Figure 2. Charge Pump Voltage Inverter S1 GND V CC + V+ = 2V CC + V CC S2 S3 S4 C1 C3 INTERNAL OSCILLATOR S1 FROM VOLTAGE DOUBLER V+ + V- = -(V+) + S2 S3 S4 C2 C4 INTERNAL OSCILLATOR GND GND FEATURES… The Sipex SP231A, SP232A and SP233A are enhanced versions of the Sipex SP231, SP232 andSP233RS-232linedrivers/receivers.Theyarepin- for-pin replacements for these earlier versions, will operate in their sockets with capacitors ranging from 0.1 to 100 µF, either polarized or non–polarized, and feature several improvements in both performance and ease of use. Performance enhancements include 10V/ µs slew rate, 120k bits per second guaranteed transmission rate, and increased drive current for longerandmoreflexiblecableconfigurations.Easeof useenhancementsincludesmaller,0.1 µFchargepump capacitors, enhanced ESD protection, low power dissipation and overall ruggedized construction for commercial environments. The SP232A, SP233A, SP310A and SP312A include charge pump voltage converters which allow them to operate from a single +5V supply. These converters convert the +5V input power to the ±10V needed to generate the RS-232 output levels. Both meet all EIA RS-232D and CCITT V.28 specifica- tions. The SP231A has provisions for external V+ supplies. With this power supplied externally, the current drain due to charge pump operation is considerably reduced, typically to 400 µA. The SP310A provides identical features as the SP232A. The SP310A has a single control line which simultaneously shuts down the internal DC/ DC converter and puts all transmitter and receiver outputs into a high impedance state. The SP312A is identical to the SP310A with separate tri-state and shutdown control lines. The SP231A is available in 14-pin plastic DIP, CERDIP and 16-pin SOIC packages for opera- tion over commercial, industrial and military temperature ranges. The SP232A is available in 16-pin plastic DIP, SOIC and CERDIP packages, operating over the commercial, industrial and military temperature ranges. The SP233A is available in a 20-pin plastic DIP and 20–pin SOIC package for operation over the commercial and industrial temperature ranges. The SP310A and SP312A are available in 18-pin plastic, CERDIP and SOIC packages for operation over the commercial and industrial temperature ranges. Please consult the factory for DIP and surface-mount packaged parts supplied on tape-on-reel, as well as parts screened to MIL-M-38510. THEORY OF OPERATION The SP231A, SP232A, SP233A, SP310A and SP312A devices are made up of three basic circuit blocks – 1) a driver/transmitter, 2) a receiver and 3) a charge pump. Each block is described below. Driver/Transmitter The drivers are inverting transmitters, which accept TTL or CMOS inputs and output the RS-232 signals with an inverted sense relative to the input logic levels. Typically the RS-232 output voltage swing is ±9V. Even under worst case loading conditions of 3kOhms and 2500pF, the output is guaranteed to be ±5V,whichisconsistent with the RS-232 standard specifications. The transmitter outputs are protected against infinite short-circuits to ground without degradation in reliability. The instantaneous slew rate of the transmitter output is internally limited to a maximum of 30V/ µs in order to meet the standards [EIA RS-232-D 2.1.7, Paragraph (5)]. However, the transition region slew rate of these enhanced products is typically 10V/ µs. The smooth transition of the loaded output from V OL to VOH clearly meets the monotonicity requirements of the standard [EIA RS-232-D 2.1.7, Paragraphs (1) & (2)]. |
Similar Part No. - SP310ACP |
|
Similar Description - SP310ACP |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |