DS26503
DS26503
alert :
Obsolete
alert :
Obsolete
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- G.703 2048kHz Synchronization Interface Compliant
- G.703 6312kHz Japanese Synchronization Interface Compliant
- Interfaces to Standard T1/J1 (1.544MHz) and E1 (2.048MHz)
- Interface to CMI-Coded T1/J1 and E1
- Short- and Long-Haul Line Interface
- Transmit and Receive T1 and E1 SSM Messages with Message Validation
- T1/E1 Jitter Attenuator with Bypass Mode
- Fully Independent Transmit and Receive Functionality
- Internal Software-Selectable Receive- and Transmit-Side Termination for 75Ω/100Ω/110Ω/120Ω
- Monitor Mode for Bridging Applications
- Accepts 16.384MHz, 12.8MHz, 8.192MHz, 4.096MHz, 2.048MHz, or 1.544MHz Master Clock
- 8-Bit Parallel Control Port, Multiplexed or Nonmultiplexed, Intel or Motorola
- Serial (SPI) Control Port
- Hardware Control Mode
- Provides LOS, AIS, and LOF Indications Through Hardware Output Pins
- Fast Transmitter-Output Disable Through Device Pin for Protection Switching
- IEEE® 1149.1 JTAG Boundary Scan
- 3.3V Supply with 5V-Tolerant Inputs and Outputs
Additional Details
The DS26503 is a building-integrated timing-supply (BITS) clock-recovery element. It also functions as a basic T1/E1 transceiver. The receiver portion can recover a clock from T1, E1, and 6312kHz synchronization timing interfaces. In T1 and E1 modes, the Synchronization Status Message (SSM) can also be recovered. The transmit portion can directly interface to T1 or E1 interfaces as well as source the SSM in T1 and E1 modes. The DS26503 can translate between any of the supported inbound synchronization clock rates to any supported outbound rate. A separate output is provided to source a 6312kHz clock. The device is controlled through a parallel, serial, or hardware controller port.
Applications
- Basic Transceiver
- BITS Timing
- Rate Conversion
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DS26503
Documentation
8
Filters
1 Applied
All
All
Data Sheet
3
DS26503: T1/E1/J1 BITS Element Data Sheet (Rev.6)
DS26503: T1/E1/J1 BITS单元 Data Sheet
DS26503: T1/E1/J1 BITSエレメント Data Sheet
Reliability Data
1
UPDATED 01/12/2023
English
DS26503 Reliability Data
23.77K
Application Note
3
HTML
UPDATED 11/27/2001
English
HTML
UPDATED 02/04/2002
English
HTML
UPDATED 02/20/2018
English
Design Note
1
HTML
UPDATED 01/26/2017
English
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Documentation
Technical Documents
6
Data Sheet 1
Reliability Data 1
Application Note 3
Design Note 1
Software & Part Ecosystem
Companion Parts 2
Parts | Product Life Cycle | Description | ||
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Product2 |
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T1/E1/J1/64KCC BITS Element |
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T1/E1/J1 Single-Chip Transceiver |
Evaluation Kits 1
DS26503DK
T1/E1/J1 BITS Element Design Kit
Product Detail
The DS26503DK is an easy-to-use evaluation board for the DS26503 T1/E1/J1 BITS element. The DS26503DK is intended to be used as a stand-alone design kit. The board is complete with a DS26503 BITS element, transformers, termination resistors, FPGA-based configuration switches, and network connectors. Dallas' ChipView software gives pointand- click access to configuration and status registers from a Windows®-based PC. On-board LEDs indicate receive loss-of-signal and interrupt status as well as multiple clock and signal routing configurations.
Applications
- Basic Transceiver
- BITS Timing
- Rate Conversion
Resources