参数资料
| 型号： | DS26504DK |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/30页 |
| 文件大小： | 0K |
| 描述： | KIT DESIGN FOR DS26504 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 主要目的： | 电信，BITS 元件 |
| 已用 IC / 零件： | DS26504 |
| 已供物品： | 板，CD |
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DS26504DK
BOARD FLOORPLAN
DS26504
GND
VCC
SYSTEM LEDs
SRAM (264KB)
PROTOTYPE AREA
RESET
NETWORK
CONNECTION
SYSTEM
RESET
MICROCONTROLLER
DS26504
BITS ELEMENT
Tx
FPGA
Rx
NETWORK
FPGA STATUS
& CONFIG
OSCILLATORS
T1, E1, 6312MHZ + BNC
DS26504 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 DS26504.
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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| DS3144DK | KIT DEMO FOR DS3144 |
| DS3150DK | KIT DEMO DS3150 DS3/E3/STS-2 LIU |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
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