ZHCSMI2B november 2022 – august 2023 TRF0206-SP
PRODUCTION DATA
- 1
- 1 特性
- 2 应用
- 3 说明
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Detailed Description
- 8 Application and Implementation
- 9 Device and Documentation Support
- 10Mechanical, Packaging, and Orderable Information
8.1.2 Calculating Output Voltage Swing
This section gives a quick reference of the output voltage swings for different input power levels. In this example, the output is terminated with a 100‑Ω differential load and a power gain of 13 dB is assumed.
Figure 8-2 Power and Voltage
LevelsEquation 1. Voltage gain = 20 × log(Vo /
Vi)
Equation 2. Power gain = 10 ×
log(Po / Pi) = 10 × log((Vo2 / 100)
/ (Vi2 / 50)) = 20 × log(Vo / Vi) – 3
dB
Table 8-1 Output Voltage Swings for
Different Input Power Levels
| INPUT | OUTPUT | ||
|---|---|---|---|
| Pi (dBm) | Vi (VPP) | Po (dBm) | Vo (VPP) |
| −20 | 0.063 | −7 | 0.4 |
| −15 | 0.112 | −2 | 0.71 |
| −10 | 0.2 | 3 | 1.263 |
| −7 | 0.283 | 6 | 1.785 |