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DS26503: T1/E1/J1 BITS Element Data Sheet (Rev. 6)1/16/2008PDF5M
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• DS26503: Errata Sheet
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• DS26503: Errata Sheet
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• DS26503: Errata Sheet
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Overview
Features and Benefits
- 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
Product 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
Product Categories
Product Lifecycle
Pre-Release
This product is new and engineering validation may still be underway. Quantities may be limited and design specifications may change while we ready the product for release to production.
Documentation & Resources
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DS26503 Reliability Data1/12/2023PDF23K
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Register Configuration for DS265042/20/2018
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Using RCLK in a BITS/SSU Application2/4/2002
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T1/E1 Network Interface Design11/27/2001
Tools & Simulations
BSDL Model Files
TXT
ADSP-DS26503 BSDL Model
8.13K
IBIS Models
IBS
DS26503 IBIS Model
120.89K
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
