Hello,
(1) Understood.
(2) The answer is insufficient.
2-1 Is "10ns" the setup time, the hold time, or both?
2-2 Which signal is "10ns" relative to? Please tell me the reference signal.
2-3 Please tell me the assertion time of the…
Part Number: LMK04821 The chip is powered normally at 3.3V.SPI communication fail. There are only resistors between the FPGA and LMK04821, without any other components. The LMK04821 is controlled by the FPGA, CSn cannot be pulled high. Changing the terminating resistor on CSn to 1K and reduci…
Hi Andrea,
Thanks for your reply.
Andrea Vallenilla said: 1. On XTAL4, even though all components are NC for pin 5 which should not cause any problems, why do you even have those spaces to potentially place components there since pin 5 is a NC pin? Why…
Part Number: LMK04832 Other Parts Discussed in Thread: LMK04821 , , LMK04828 , LMK04826 Hi,
LMK04832 is out of stock. thus we looked into LMK04821, 4826, 4828. We were recommended to 4828/26 due to pin compability.
While TI clock design tool doesn't gave…
Part Number: LMK04821LMK04821 PLLatinum Sim phase noise nowhere close to datasheet plots.
I've attempted to emulate the ~frequency plan used in the datasheet, matching filter BW and phase margin. I've used 125MHz ref and 2GHz VCO but should make almost…
Part Number: LMK04821 Not clear from data sheet if the clock group supplies, VCC12_CG0, VCC2_CG1, VCC4_CG2 and VCC_CG3 can be different to other supplies, i.e. can you set a clock group supply to 1.8V to match supply to device providing clock sink?
Part Number: LMK04821 Other Parts Discussed in Thread: LMK04832 Hi TI experts:
We design a new system with lmk04821,most of clks in our system are LVDS or LVPECL,so lmk04821 can handle it. But we still have several single-end clks need be drivered. As…
Part Number: LMK04821 Hi team,
Here's an issue from the customer may need your help:
Using the single PLL mode of the LMK04821, input a differential clock of 125 MHz from the OSCin and please see the configuration parameters: https://e2echina.ti.com…
Part Number: LMK04821 Other Parts Discussed in Thread: LMK04828 Hello,
Just a question - are the phase detectors in the LMK04821 (and LMK04828) phase-frequency detectors or just phase detectors? ie. will the loop frequency lock (sweep to the correct frequency…