DS21Q58 Datasheet, PDF (1/74 Pages) Maxim Integrated Products – Dallas Semiconductor

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GENERAL DESCRIPTION
The DS21Q58 E1 quad transceiver contains all the
necessary functions for connecting to four E1 lines.
The DS21Q58 is a direct replacement for the
DS21Q50, with the addition of signaling access and
improved interrupt handling. It is composed of a line
interface unit (LIU), framer, and a TDM backplane
interface, and is controlled through an 8-bit parallel
port configured for Intel or Motorola bus operations or
serial port operation.
APPLICATIONS
DSLAMs
Routers
IMA and WAN Equipment
PIN CONFIGURATION
TOP VIEW
Dallas
Semiconductor
DS21Q58
100
1
LQFP
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Telecommunications data sheets, evaluation kits, application
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DS21Q58
E1 Quad Transceiver
FEATURES
§ Four Complete E1 (CEPT) PCM-30/ISDN-PRI
Transceivers
§ Pin Compatible with the DS21Q50 and DS21Q59
§ Short-Haul Line Interfaces
§ 32-Bit or 128-Bit Crystal-Less Jitter Attenuator
§ Frames to FAS, CAS, and CRC4 Formats
§ CAS/CCS Signaling Support
§ 4MHz/8MHz/16MHz Clock Synthesizer
§ Flexible System Clock with Automatic Source
Switching on Loss-of-Clock Source
§ Two-Frame Elastic-Store Slip Buffer on the
Receive Side
§ Interleaving PCM Bus Operation Up to
16.384MHz
§ Configurable Parallel and Serial Port Operation
§ Detects and Generates Remote and AIS Alarms
§ Fully Independent Transmit and Receive
Functionality
§ Four Separate Loopback Functions
§ PRBS Generation/Detection/Error Counting
§ 3.3V Low-Power CMOS
§ Large Counters for Bipolar and Code Violations,
CRC4 Codeword Errors, FAS Word Errors, and
E Bits
§ Eight Additional User-Configurable Output Pins
§ 100-Pin (14mm x 14mm) LQFP Package
ORDERING INFORMATION
PART
TEMP RANGE PIN-PACKAGE
DS21Q58L
DS21Q58LN
0°C to +70°C 100 LQFP
-40°C to +85°C 100 LQFP
Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device
may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata.
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