参数资料
| 型号： | SY89295UMG TR |
| 厂商： | Micrel Inc |
| 文件页数： | 5/17页 |
| 文件大小： | 0K |
| 描述： | IC DELAY LINE 1024TAP 32-MLF |
| 标准包装： | 1,000 |
| 系列： | Precision Edge® |
| 标片/步级数： | 1024 |
| 功能： | 可编程 |
| 延迟到第一抽头： | 3.2ns |
| 接头增量： | 10ps |
| 可用的总延迟： | 3.2ns ~ 14.8ns |
| 独立延迟数： | 1 |
| 电源电压： | 2.375 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-VFQFN 裸露焊盘，32-MLF? |
| 供应商设备封装： | 32-MLF?（5x5） |
| 包装： | 带卷 (TR) |
| 其它名称： | SY89295UMGTR SY89295UMGTR-ND |
Micrel, Inc.
SY89295U
March 2011
13
M9999-032511
hbwhelp@micrel.com or (408) 955-1690
Applications Information
For best performance, use good high-frequency layout
techniques, filter VCC supplies, and keep ground
connections short. Use multiple vias where possible.
Also, use controlled impedance transmission lines to
interface with the SY89295U data inputs and outputs.
VBB Reference
The VBB pin is an internally generated reference and is
available for use only by the SY89295U. When unused,
this pin should be left unconnected. Two common uses
for VBB are to handle a single-ended PECL input, and to
re-bias inputs for AC-coupling applications.
If IN and /IN are driven by a single-ended output, VBB is
used to bias the unused input. Please refer to Figure 10.
The PECL signal driving the SY89295U may optionally
be inverted in this case.
When the signal is AC-coupled, VBB is used, as shown
in Figure 13, to re-bias IN and /IN. This ensures that
SY89295U inputs are within acceptable common mode
range.
In all cases, VBB current sinking or sourcing must be
limited to 0.5mA or less.
Setting D Input Logic Thresholds
In all designs where the SY89295U GND supply is at
zero volts, the D inputs can accommodate CMOS and
TTL level signals, as well as PECL or LVPECL. Figures
11, 12 and 14 show how to connect VCF and VEF for all
possible cases.
Cascading
Two or more SY89295U may be cascaded in order to
extend the range of delays permitted. Each additional
SY89295U adds about 3.2ns to the minimum delay and
adds another 10240ps to the delay range.
Internal cascade circuitry has been included in the
SY89295U. Using this internal circuitry, the SY89295U
may be cascaded without any external gating.
Examples of cascading 2, 3, or 4 SY89295U appear in
Figures 7, 8, and 9.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SY89295UMI | 功能描述:IC DELAY LINE 1024TAP 32-MLF RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 延迟线 系列:Precision Edge® 标准包装:2,500 系列:- 标片/步级数:- 功能:多个，不可编程 延迟到第一抽头:10ns 接头增量:- 可用的总延迟:10ns 独立延迟数:4 电源电压:4.75 V ~ 5.25 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SOIC 包装:带卷 (TR) |
| SY89295UMI TR | 功能描述:IC DELAY LINE 1024TAP 32-MLF RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 延迟线 系列:Precision Edge® 标准包装:2,500 系列:- 标片/步级数:- 功能:多个，不可编程 延迟到第一抽头:10ns 接头增量:- 可用的总延迟:10ns 独立延迟数:4 电源电压:4.75 V ~ 5.25 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SOIC 包装:带卷 (TR) |
| SY89295UMITR | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:2.5V / 3.3V 1.5 GHZ PRECISION LVPECL PROGRAMMABLE DELAY |
| SY89295UTG | 功能描述:延迟线/计时元素 2.5V/3.3V PECL Delay Line (I Temp, Green) RoHS:否 制造商:Micrel 功能:Active Programmable Delay Line 传播延迟时间:1000 ps 工作温度范围: 封装 / 箱体:QFN-24 封装:Tube |
| SY89295UTG TR | 功能描述:延迟线/计时元素 2.5V/3.3V PECL Delay Line (I Temp, Green) RoHS:否 制造商:Micrel 功能:Active Programmable Delay Line 传播延迟时间:1000 ps 工作温度范围: 封装 / 箱体:QFN-24 封装:Tube |
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