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…
Part Number: LMK04821 Dear Sir / Madam,
What delay is required after pulsing the reset pin before registers can be written via SPI? Does the device reset on the rising edge of RESET?
Same question really, but for SOFT RESET - after setting SOFT RESET…
Part Number: LMK04821 Hi team,
I have a application details want to confirm wiith you about LMK04821 0x183 register.
what's the meaning when bit 1/RB_pll2_LD, should we pay attention to this status in the real case? Since this bit could also be cleared…
Part Number: LMK04821 The manual explains that lmk04821 has a total of seven groups of clocks. Each group of clocks includes DCLK and sdclk, of which DCLK is affected by the clock divider parameter and the other sdclk is affected by the sysref clock divider…
Part Number: LMK04821 Hello everyone!
I hope this question isn't too simplistic.
I've been looking through the 0482x device family for a JESD204B clock tree design. The 4821, the only device that supports VCO1 division, seems to come up in searches…
Part Number: LMK04821 Other Parts Discussed in Thread: DAC38RF83 My circuit is as below, DAC38RF83 with LMK04821 -> differential RF amplifier -> balun transformer -> single ended RF output. The is a spurious on RF output at the LMK04821 internal…
Part Number: LMK04821 According to the standard 3-line SPI reading method, I tried to read the version value 0x006 of LMK04821, but after I sent 0x8006, the last 8 CLKS did not receive the data I needed from SDI. I have verified that the register can…
Part Number: LMK04821 Other Parts Discussed in Thread: CODELOADER I am using two-channel clock SDCLKout7 and SDCLKout11 to output 2GHz clock. I need to synchronize the two outputs according to the description in the manual, as shown below:
What do I need…
Part Number: LMK04821
Hello,
One customer used LMK04821 and the SPI timing is as following, the read timing is according to the datasheet : R/W(read=1)+W1W0(00)+A12A0 +data, but when he read back any registers, the value is always 0x00. The problem is…