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DS26503

Dallas Semiconducotr
Part Number DS26503
Manufacturer Dallas Semiconducotr
Description T1/E1/J1 BITS Element
Published Apr 23, 2007
Detailed Description DS26503 T1/E1/J1 BITS Element www.maxim-ic.com GENERAL DESCRIPTION The DS26503 is a building-integrated timingsupply (B...
Datasheet PDF File DS26503 PDF File

DS26503
DS26503

Overview
DS26503 T1/E1/J1 BITS Element www.
maxim-ic.
com GENERAL DESCRIPTION The DS26503 is a building-integrated timingsupply (BITS) clock-recovery element.
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.
FEATURES § 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 § Crystal-Less Jitter Attenuator with Bypass Mode § Fully Independent Transmit and Receive Functionality § Internal Software-Selectable Receive- and Transmit-Side Termination for www.
DataSheet4U.
com 75Ω/100Ω/110Ω/120Ω § Monitor Mode for Bridging Applications APPLICATIONS § Accepts 16.
384MHz, 8.
192MHz, 4.
096MHz, BITS Timing 2.
048MHz, or 1.
544MHz (T1 Only) Master Rate Conversion Clock Basic Transceiver § 8-Bit Parallel Control Port, Multiplexed or Nonmultiplexed, Intel or Motorola § Serial (SPI) Control Port ORDERING INFORMATION § Hardware Control Mode PART TEMP RANGE PIN-PACKAGE § Provides LOS, AIS, and LOF Indications DS26503L 0°C to +70°C 64 LQFP Through Hardware Output Pins § Fast Transmitter-Output Disable Through DS26503LN -40°C to +85°C 64 LQFP Device Pin for Protection Switching § IEEE 1149.
1 JTAG Boundary Scan § 3.
3V Supply with 5V-Tolerant Inputs and Outputs Note: Some revisions of this device may incorporate deviations from published spe...


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