参数资料
| 型号： | DS3106LN+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 31/92页 |
| 文件大小： | 0K |
| 描述： | IC TIMING LINE CARD 64-LQFP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 160 |
| 类型： | 定时卡 IC，多路复用器 |
| PLL： | 是 |
| 主要目的： | 以太网，SONET/SDH，Stratum，电信 |
| 输入： | CMOS，TTL |
| 输出： | CMOS，LVDS，LVPECL，TTL |
| 电路数： | 1 |
| 比率 - 输入:输出： | 2:2 |
| 差分 - 输入:输出： | 无/是 |
| 频率 - 最大： | 312.5MHz |
| 电源电压： | 1.62 V ~ 1.98 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 64-LQFP |
| 供应商设备封装： | 64-LQFP（10x10） |
| 包装： | 托盘 |
| 产品目录页面： | 1429 (CN2011-ZH PDF) |
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DS3106
37
7.10 Reset Logic
The device has three reset controls: the
RST pin, the RST bit in MCR1, and the JTAG reset pin JTRST. The RST
pin asynchronously resets the entire device, except for the JTAG logic. When the
RST pin is low all internal
registers are reset to their default values, including those fields that latch their default values from, or based on, the
states of configuration input pins when the
RST goes high. The RST pin must be asserted once after power-up
while the external oscillator is stabilizing.
The MCR1:RST bit resets the entire device (except for the microprocessor interface, the JTAG logic, and the RST
bit itself), but when RST is active, the register fields with pin-programmed defaults do not latch their values from, or
based on, the corresponding input pins. Instead, these fields are reset to the default values that were latched when
the
RST pin was last active.
Microsemi recommends holding
RST low while the external oscillator starts up and stabilizes. An incorrect reset
condition could result if
RST is released before the oscillator has started up completely.
Important: System software must wait at least 100s after reset (
RST pin or RST bit) is deasserted before
initializing the device as described in Section 7.12.
7.11 Power-Supply Considerations
Due to the DS3106’s dual-power-supply nature, some I/Os have parasitic diodes between a 1.8V supply and a
3.3V supply. When ramping power supplies up or down, care must be taken to avoid forward-biasing these diodes
because it could cause latchup. Two methods are available to prevent this. The first method is to place a Schottky
diode external to the device between the 1.8V supply and the 3.3V supply to force the 3.3V supply to be within one
parasitic diode drop below the 1.8V supply (i.e., VDDIO > VDD - ~0.4V). The second method is to ramp up the 3.3V
supply first and then ramp up the 1.8V supply.
7.12 Initialization
After power-up or reset, a series of writes must be done to the DS3106 to tune it for optimal performance. This
series of writes is called the initialization script. Each DS3106 die revision has a different initialization script. For the
latest initialization scripts contact Microsemi timing products technical support.
Important: System software must wait at least 100s after reset (
RST pin or RST bit) is deasserted before
initializing the device.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS3106LN+ | 功能描述:计时器和支持产品 Line Card Timing IC 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 |
| DS3107FP000 | 制造商:Thomas & Betts 功能描述:30A,CON,2P3W,MG,107,125V |
| DS3107FRAB0 | 制造商:Thomas & Betts 功能描述:30A,REC,2P3W,MG,107,AB0,125,SC |
| DS3107MP000 | 制造商:Thomas & Betts 功能描述:30A,PLG,2P3W,MG,107,125V |
| DS3107MP00K | 制造商:Thomas & Betts 功能描述:30A,PLG,2P3W,MG,107,125V,CC |
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