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REV: 121707
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.
GENERAL DESCRIPTION
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
BITS Timing
Rate Conversion
Basic Transceiver
ORDERING INFORMATION
PART
TEMP RANGE
PIN-PACKAGE
DS26503L
0°C to +70°C
64 LQFP
DS26503LN
-40°C to +85°C
64 LQFP
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
T1/E1 Jitter Attenuator with Bypass Mode
Fully Independent Transmit and Receive
Functionality
Internal Software-Selectable Receive- and
Transmit-Side Termination for
75
Ω/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
DS26503
T1/E1/J1 BITS Element
www.maxim-ic.com
DESIGN KIT AVAILABLE
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相关代理商/技术参数
DS26504 制造商:Maxim Integrated Products 功能描述:T1/E1/J1 ENH BITS ELEMENT LQFP - Trays
DS26504_06 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:T1/E1/J1/64KCC BITS Element
DS26504DK 功能描述:网络开发工具 DS26504 Dev Kit RoHS:否 制造商:Rabbit Semiconductor 产品:Development Kits 类型:Ethernet to Wi-Fi Bridges 工具用于评估:RCM6600W 数据速率:20 Mbps, 40 Mbps 接口类型:802.11 b/g, Ethernet 工作电源电压:3.3 V
DS26504L 功能描述:计时器和支持产品 E1/T1/J1/64Kcc Bits Element RoHS:否 制造商:Micrel 类型:Standard 封装 / 箱体:SOT-23 内部定时器数量:1 电源电压-最大:18 V 电源电压-最小:2.7 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel
DS26504L+ 功能描述:计时器和支持产品 E1/T1/J1/64Kcc Bits Element RoHS:否 制造商:Micrel 类型:Standard 封装 / 箱体:SOT-23 内部定时器数量:1 电源电压-最大:18 V 电源电压-最小:2.7 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel
DS26504LN 功能描述:计时器和支持产品 E1/T1/J1/64Kcc Bits Element RoHS:否 制造商:Micrel 类型:Standard 封装 / 箱体:SOT-23 内部定时器数量:1 电源电压-最大:18 V 电源电压-最小:2.7 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel
DS26504LN+ 功能描述:计时器和支持产品 E1/T1/J1/64Kcc Bits Element RoHS:否 制造商:Micrel 类型:Standard 封装 / 箱体:SOT-23 内部定时器数量:1 电源电压-最大:18 V 电源电压-最小:2.7 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel
DS26504LN+T&R 制造商:Maxim Integrated Products 功能描述:T1/E1/J1 ENH BITS IC LQFP LF T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC T1/E1/J1 64KCC ELEMENT 64LQFP