Other Parts Discussed in Thread: EK-TM4C123GXL
Hi everyone:
I'm designing a custom board that uses a 16Mhz crystal. However, my PCB house FAB does not have available inventory for any of the 16Mhz crystals recommended on the Table 24-19. Crystal Parameters of the Device Datasheet.
May I ask help on selecting a right replacement? This is quite a difficult topic for me, so any help would be greatly appreciated.
For context, in case those can be badly affected by an improper selected crystal, my device will operate continuously at 25~30 oC ambient, 80Mhz and using SPI (10Mb) , UART (115200 bps) and a timer that generates 1ms interrupts. Oh, and the USB to implement a Bootloader / DFU. All this work great on the field with my current prototype that uses an EK-TM4C123GXL.
I would like to use the same footprint SMD 5032 (And hopefully the same required capacitors and resistor) of the 2 options indicated on the schematic of the EK-TM4C123GXL. Here are their datasheets:
Alternative 1 from the EK-TM4C123GX: NDK, PN: NX5032GA-16.000000 MHz
Alternative 2 from the EK-TM4C123GX: Abracon, PN: ABM3-16.000 MHz-B2- T
Here it is my Candidate branded: JYJE, PN: 5TG216000FYGBC whose Load Capacitance is 8pF (value not shown on the datasheet).
If I'm reading the data correct:
- The ESR is lower on my candidate (50/60ohm) against 120 of the NDK part, and 60 for the Abracon.
- Also, the drive level is 10~50mW(Typical) on my candidate, against 50mW of the NDK and 10mW (Typical) and 100mW (Max) for the Abracon.
- And the Frecuency Tolerance / Stability is also different: ±10/±50ppm for my candidate, ± 50/± 50ppm for both the NDK and the Abracon parts.
Just in case my candidate is not a good one, there is another one readily available of my PCB house FAB branded YXC PN X322516MLB4SI only that it comes in a SMD3225-4P package (in contrast to the 5032-2P of the others) and has CL of 9pF. So I guess that I should change the capacitors and resistance for it (12pf/12pf and 0.5ohm from the table of the device datasheet if I take the ECS-160-9-42- CKM-TR as a reference, as it has a CL of 9pF).
Again, any help would be greatly appreciated. Thank you!
