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DS26503LN Datasheet

  • DS26503LN

  • T1/E1/J1 BITS Element

  • 123頁

  • DALLAS   DALLAS

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DS26503
T1/E1/J1 BITS Element
www.maxim-ic.com
GENERAL DESCRIPTION
The DS26503 is a building-integrated timing-
supply (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
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APPLICATIONS
BITS Timing
Rate Conversion
Basic Transceiver
ORDERING INFORMATION
PART
DS26503L
DS26503LN
TEMP RANGE PIN-PACKAGE
0擄C to +70擄C
-40擄C to +85擄C
64 LQFP
64 LQFP
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
75鈩?100鈩?110鈩?120鈩?/div>
Monitor Mode for Bridging Applications
Accepts 16.384MHz, 8.192MHz, 4.096MHz,
2.048MHz, or 1.544MHz (T1 Only) 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
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.
1 of 123
REV: 070904

DS26503LN 產(chǎn)品屬性

  • Maxim Integrated Products

  • Clock Recovery

  • LQFP-64

  • 3.46 V

  • 3.13 V

  • + 85 C

  • - 40 C

  • SMD/SMT

  • 85 mA

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