Clock/Timing

Clock/Timing

Clock Timing covers the parts that keep a system synchronized: crystal oscillators, clock generators, jitter cleaners, PLLs, buffers, dividers, and real-time clocks. Some designs only need a simple 25 MHz oscillator to drive an MCU, while others depend on a low-jitter clock tree for Ethernet, SerDes, RF, or data converter timing. These parts show up everywhere, from industrial controllers and network switches to medical devices, telecom line cards, and automotive modules. When buyers source clock timing components, the first thing they usually check is frequency stability and jitter, because a cheaper part with worse phase noise can force a redesign later. Package matters too. A lot of engineers still prefer standard SMD packages like 3225 or 5032 for oscillators, but smaller designs keep pushing toward tighter footprints and lower current draw. Supply is the other big issue. Active clock ICs from major brands can go on allocation without much warning, and older RTC or buffer part numbers sometimes drift into last-time-buy status while production is still running. That is where the trade-off usually shows up: pay more for a branded, traceable part now, or gamble on a gray-market offer and risk inconsistent date codes, poor storage, or outright counterfeit stock. For procurement teams, packaging preference is not a small detail either. Tape-and-reel is fine for production, but many repair and NPI builds still need cut tape or small quantities with proper labels and handling. If you are comparing clock timing parts, it helps to send the exact part number, required quantity, target date code, and whether alternates are acceptable. For current stock, lead time, or a quote, check availability at icxing.com.

Frequently Asked Questions

How do I know if a clock timing part is genuine when buying from the open market?

Ask for photos of the label, reel, and lot or date code before placing the order. For timing ICs and oscillators, inconsistent markings and mixed date codes are common warning signs, especially on older or allocated part numbers. Buying through a distributor that can provide traceability lowers that risk.

What specs matter most when comparing oscillators and clock generators?

Start with frequency, stability over temperature, supply voltage, output type, and jitter. For simple MCU clocks, basic stability may be enough, but Ethernet, FPGA, and RF designs often need much tighter phase noise performance. The right part depends on the system budget, not just the headline frequency.

Why do clock timing lead times vary so much between similar part numbers?

Small differences in package, temperature range, frequency option, or output format can turn a common part into a factory-order item. Standard frequencies and popular SMD packages usually move faster, while custom or legacy options may carry long lead times. If your build is urgent, ask about approved alternates early.

1,699 Records
Image Part Manufacturer Description Stock Action
LMX2531LQX2220E/NOPB Texas Instruments
IC FREQ SYNTH HI ...
4,790
In-stock
Inquiry
LMX2531LQX2294/NOPB Texas Instruments
IC FREQ SYNTH HI ...
7,430
In-stock
Inquiry
CDCE421YS Texas Instruments
IC CRYSTAL OSCIL...
5,550
In-stock
Inquiry
CDCE72010RGCRG4 Texas Instruments
IC CLK SYNC/JITTE...
2,700
In-stock
Inquiry
CDCE72010RGCTG4 Texas Instruments
IC CLK SYNC/JITTE...
2,890
In-stock
Inquiry
TRF3762-EIRHAR Texas Instruments
IC INTEGER-N PLL ...
5,350
In-stock
Inquiry
LMX2531LQX2820E/NOPB Texas Instruments
IC PLL FREQ SYNTH...
5,380
In-stock
Inquiry
LMX2531LQX3010E/NOPB Texas Instruments
IC PLL FREQ SYNTH...
6,160
In-stock
Inquiry
CDCE431Y Texas Instruments
IC CRYSTAL OSCIL...
2,880
In-stock
Inquiry
CDCDLP223PWR Texas Instruments
IC CLK SYNTH FOR ...
5,260
In-stock
Inquiry
LMX2541SQX2060E/NOPB Texas Instruments
IC PLL FREQ SYNTH...
6,530
In-stock
Inquiry
LMX2541SQX2380E/NOPB Texas Instruments
IC PLL FREQ SYNTH...
7,590
In-stock
Inquiry
LMX2541SQX2690E/NOPB Texas Instruments
IC PLL FREQ SYNTH...
3,340
In-stock
Inquiry
LMX2541SQX3030E/NOPB Texas Instruments
IC PLL FREQ SYNTH...
6,930
In-stock
Inquiry
LMX2541SQX3320E/NOPB Texas Instruments
IC PLL FREQ SYNTH...
2,630
In-stock
Inquiry
LMX2541SQX3740E/NOPB Texas Instruments
IC PLL FREQ SYNTH...
5,390
In-stock
Inquiry
LMX2433TMX Texas Instruments
IC SYNTHESIZER D...
6,760
In-stock
Inquiry
LMX2434TMX Texas Instruments
IC SYNTHESIZER D...
1,170
In-stock
Inquiry
CDCM7005HFG/EM Texas Instruments
IC CLK SYNC JITTE...
2,870
In-stock
Inquiry
LMX2433TMX/NOPB Texas Instruments
IC SYNTHESIZER D...
5,420
In-stock
Inquiry