ZHCSQ95H March 2000 – March 2022 TFP401 , TFP401A
PRODUCTION DATA
- 1 特性
- 2 应用
- 3 说明
- 4 Revision History
- 5 说明（续）
- 6 Pin Configuration and Functions
- 7 Specifications
- 8 Parameter Measurement Information
- 9 Detailed Description
- 10Applications and Implementation
- 11Power Supply Recommendations
- 12Layout
- 13Device and Documentation Support
- 14Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
- PZP|100
散热焊盘机械数据 (封装 | 引脚)
- PZP|100
订购信息
10.2.2.1 Data and Control Signals
The trace length of data and control signals out of the receiver should be kept as close to equal as possible. Trace separation should be ≈5X Height. As a general rule, traces also should be less than 2.8 inches if possible (longer traces can be acceptable).
Equation 1. Delay = 85 × SQRT ER
where
- ER = 4.35
- Relative permittivity of 50% resin FR-4 at 1 GHz
- Delay = 177 pS/inch
Equation 2. Length of rising
edge = TR (picoseconds) ÷ Delay
where
- TR = 3 nS
- = 3000 ps ÷ 177 ps per inch
- = 16.9 inches
Equation 3. Length of rising
edge ÷ 6 = Maximum length of trace for lumped circuit
where
- 16.9 ÷ 6 = 2.8 inches
Figure 10-2 Data and Control Signals Design