SP505AB Datasheet, PDF (1/36 Pages) Sipex Corporation – WAN Multi-Mode Serial Transceiver

®
SP505
WAN Multi-Mode Serial Transceiver
■ +5V Only Operation
■ Seven (7) Drivers and Seven (7) Receivers
■ Driver and Receiver Tri-state Control
■ Internal Transceiver Termination Resistors for
V.11 and V.35 Protocols
■ Loopback Self-Test Mode
■ Software Selectable Protocol Selection
■ Interface Modes Supported:
✓ RS-232 (V.28)
✓ X.21/RS-422 (V.11)
✓ EIA-530 (V.10 & V.11) ✓ EIA-530A (V.10 & V.11)
✓ RS-449 (V.10 & V.11) ✓ V.35 (V.35 & V.28)
✓ V.36 (V.10 & V.11)
✓ RS-485 (un-terminated V.11)
■ Improved ESD Tolerance for Analog I/Os
■ High Differential Transmission Rates
➥ SP505A - 10Mbps
➥ SP505B - over 16Mbps
■ Compliant to NET1/2 and TBR2 Physical
Layer Requirements
(TUV Test Report NET2/052101/98)
(TUV Test Report CTR2/052101/98)
DESCRIPTION...
The SP505 is a monolithic device that supports eight (8) popular serial interface standards for DTE to
DCE connectivity. The SP505 is fabricated using a low power BiCMOS process technology, and
incorporates a Sipex patented (5,306,954) charge pump allowing +5V only operation. Seven (7) drivers
and seven (7) receivers can be configured via software for any of the above interface modes at any time.
The SP505 requires no additional external components for compliant operation for all of the eight (8)
modes of operation. All necessary termination is integrated within the SP505 and is switchable when
V.35 drivers, V.35 receivers, and V.11 receivers are used. The SP505 can operate as either a DTE or DCE.
Additional features with the SP505 include internal loopback that can be initiated in either single-ended
or differential modes. While in loopback mode, driver outputs are internally connected to receiver inputs
creating an internal signal path convenient for diagnostic testing. This eliminates the need for an external
loopback plug. The SP505 also includes a latch enable pin with the driver and receiver address decoder.
Tri-state ability for the driver and receiver outputs is controlled by supplying a 4-bit word into the address
decoder. Seven (7) drivers and one (1) receiver in the SP505 include separate enable pins for added
convenience. The SP505 is ideal for WAN serial ports in networking equipment such as routers,
switches, DSU/CSU's, and other access devices.
EIA-530
Rev. 7/9/03
V.35
WAN
SP505 Multi–Mode Serial Transceiver
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© Copyright 2003 Sipex Corporation