Interfacing LVCMOS to MAX3967's PECL input
时间:04-06
整理:3721RD
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Hi,
I'd like to build an experimental high-frequency LED light source based on a signal generator with an LVCMOS output specified as follows:
The LED shall be driven by a MAX3967A at VCC=+3.3V, whose input can be operated in a number of ways (single-ended).
Furthermore, the MAX3967A datasheet specifies the following for single-ended operation of the IN+ data input at VCC=3.3V: pull to VCC with R1=82Ω, to GND with R2=130Ω, then through (unspecified!) capacitor to RF output of data source. For PECL data source, just pull to VCC-2V with 50Ω.
Being completely RF-ignorant, I'm going to need some advice in order to get this right. How would I interface one to the other to safely transmit digital signals between 10 and, say, 100 MHz?
Thank you very much in advance!
Matthias
I'd like to build an experimental high-frequency LED light source based on a signal generator with an LVCMOS output specified as follows:
The LED shall be driven by a MAX3967A at VCC=+3.3V, whose input can be operated in a number of ways (single-ended).
Furthermore, the MAX3967A datasheet specifies the following for single-ended operation of the IN+ data input at VCC=3.3V: pull to VCC with R1=82Ω, to GND with R2=130Ω, then through (unspecified!) capacitor to RF output of data source. For PECL data source, just pull to VCC-2V with 50Ω.
Being completely RF-ignorant, I'm going to need some advice in order to get this right. How would I interface one to the other to safely transmit digital signals between 10 and, say, 100 MHz?
Thank you very much in advance!
Matthias
Never mind. The MC100EPT622 seems to be just what this needs.
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