I am using a CDCLVC1104 to buffer a TCXO out to multiple chips. I have the outputs of the 1104 connecting through 50 Ohm microstrip lines to two, 100 Ohm resistors in parallel to ground at the load device, which are also in parallel with device parasitic capacitance, . My problem is the device is pulling 58 mA DC from the 3.3V DC power supply rails. On page 3 of the datasheet, the maximum continuous output current is listed at 50 mA. Is this for each output, or for the whole device? I am worried that I will damage the chip with my configuration. I based my circuit on Figure 2, page 6, Application Load with 50 Ohm Line Terminations, BUT WHERE THE APPLICATION CIRCUIT CONNECTS ONE OF THE 100 OHM RESISTORS TO VDD, I HAVE CONNECTED BOTH TO GROUND TO PRESENT 50 OHM IMPEDANCE FOR MATCHING. I AM WORRIED ABOUT THE DC CURRENT THAT I AM SEEING THE CHIP CONSUME.
Other info:
Vdd = 3.3V, frequency is 10 MHz, 50 Ohm microstrips are ~2" in length.
Please advise, as I need to know if my termination is robust and will not damage the 1104 chip with DC power draw.