LMK03328: Calcrate for power consumption

Hi,

Please see table 8.6 on pages 8-9 on the LMK03328 Datasheet (SNAS668B). The first two rows of the table list the core and output power consumption by block:

Based on your configuration, the table above can be used to add up the current draw of each block to find the total current draw.

For example, consider a configuration using the primary input with the doubler enabled, one PLL enabled, and all the outputs enabled as LVDS outputs:

Core current consumption = Primary input (10mA) + PLL doubler (4mA) + PLL1 block (110mA) + Control block (88mA) = 212mA

Output current consumption = Output channel, mux and divider only (50mA x 6 (since channels 0/1 and 2/3 share a divider) = 300mA) + AC-LVDS driver, one pair (10mA x 8 = 80mA) = 380mA

Total current consumption = 212mA + 380mA = 592mA

Also note that the LMK03328 evaluation module (EVM) has built in current draw measurement capabilities. Using the Codeloader or TICS Pro software, the EVM can read the device current draw (see the 'Chip Supply Currents' box under the 'Status' tab).