产品详情
- 5MHz to 3000MHz frequency 范围
- Glitch-Free™ low transient overshoot
- Low insertion loss 1.2dB at 1GHz
- Excellent linearity +64dBm IIP3
- Attenuation 步 error 0.1dB at 1GHz
- Serial and parallel interface 31.5dB 范围
- Low spurious design
- 3V/5V supply, 1.8V/3.3V control logic
- Fast settling time
- Class 2 JEDEC ESD (2kV HBM)
- 4mm x 4mm 20-TQFN package
The F1978 Digital 步 Attenuator (DSA) featuring Glitch-Free™ technology improves system reliability and settling time. It has an attenuation 范围 of 31.5dB with excellent accuracy and very low distortion and insertion loss. The product 支持s direct serial mode programming as well as conventional serial programming and parallel programming modes of direct and latched.
The F1978 DSA has identical RF performance as the F1975 DSA. The difference between F1978 and F1975 is that F1978 has an additional programming mode called Direct Serial Programming. Consult the "Programming" section of the F1978 数据表 or 应用 note AN-945 "Comparison of F1975 and F1978 Digital 步 Attenuator Serial Programming Methods".
- CATV 基础设施
- CATV set-top boxes
- CATV satellite modems
- Data network equipment
- Fiber networks
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