DS26503DK
BOARD FLOORPLAN
DS26503
GND
VCC
SYSTEM LEDs
SRAM (264KB)
PROTOTYPE AREA
RESET
NETWORK
CONNECTION
SYSTEM
RESET
MICROCONTROLLER
DS26503
BITS ELEMENT
Tx
FPGA
Rx
NETWORK
FPGA STATUS
& CONFIG
OSCILLATORS
T1, E1, 6312MHZ + BNC
DS26503 LEDs
CONNECTION
ERRATA
The design kit errata refer to two different PC board revisions: the DS26502DK01A0 and DS26502DK01B0. The
PC board revision code is found on the bottom of the board in the lower right corner.
DS26502DK01A0 Circuit Boards
? RCLK did not get connected to FPGA. A jumper wire was run from RCLK to TP10 to provide the connection.
? Silkscreen for J3.4 is incorrect. Silkscreen reads “JTD I MMC2107” and should read “JTD O MMC2107.”
? RJ45 connector J4 does not use the standard pin numbers for connection to the transformer (and subsequently
to TTIP/TRING and RTIP/RRING). This connector has been left unpopulated to avoid confusion. The
schematic has been updated and is correct.
?
DC blocking capacitor C4 on TTIP too small. A 10 μ F capacitor is recommended; a 1 μ F capacitor was
populated.
DS26502DK01B0 Circuit Boards
? RJ45 connector J4 does not use the standard pin numbers for connection to the transformer (and subsequently
to TTIP/TRING and RTIP/RRING). This connector has been left unpopulated to avoid confusion. The
schematic has been updated and is correct.
ADDITIONS
The following signals have been connected to test points via the FPGA:
?
?
?
TP6 is driven with data present at the TS_8K_4 pin of the DS26503.
TP7 is driven with the 400Hz signal mentioned in the TS_8Ksrc register (page 15).
TP8 is driven with the 8KHz signal mentioned in the TS_8Ksrc register (page 15).
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相关PDF资料
DS26504DK KIT DESIGN FOR DS26504
DS26519DK KIT DEMO FOR DS26519
DS26521DK KIT DESIGN FOR DS26521
DS3106DK KIT DEMO FOR DS3106
DS3144DK KIT DEMO FOR DS3144
DS3150DK KIT DEMO DS3150 DS3/E3/STS-2 LIU
DS3153DK KIT DEMO FOR DS3153
DS3154DK KIT DEMO FOR DS3154
相关代理商/技术参数
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DS26503L+ 功能描述:计时器和支持产品 E1-T1-J1 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
DS26503LN 功能描述:计时器和支持产品 E1-T1-J1 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
DS26503LN+ 功能描述:计时器和支持产品 E1-T1-J1 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
DS26504 制造商:Maxim Integrated Products 功能描述:T1/E1/J1 ENH BITS ELEMENT LQFP - Trays
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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
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