SLVSD97A June 2017 – April 2020 ADC12DJ3200
PRODUCTION DATA.
Use appropriate band-limiting filters to reject unwanted frequencies in the input signal path.
A 1:2 balun transformer is needed to convert the 50-Ω, single-ended signal to 100-Ω differential for input to the ADC. The balun outputs can be either AC-coupled, or directly connected to the ADC differential inputs, which are terminated internally to GND.
Drivers must be selected to provide any needed signal gain and that have the necessary bandwidth capabilities.
Baluns must be selected to cover the needed frequency range, have a 1:2 impedance ratio, and have acceptable gain and phase balance over the frequency range of interest. Table 149 lists a number of recommended baluns for different frequency ranges.
PART NUMBER | MANUFACTURER(1) | MINIMUM FREQUENCY (MHz) | MAXIMUM FREQUENCY (MHz) |
---|---|---|---|
BAL-0009SMG | Marki Microwave | 0.5 | 9000 |
BAL-0208SMG | Marki Microwave | 2000 | 8000 |
TCM2-43X+ | Mini-Circuits | 10 | 4000 |
TCM2-33WX+ | Mini-Circuits | 10 | 3000 |
B0430J50100AHF | Anaren | 400 | 3000 |