LMK04102SQX/NOPB Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
Texas Instruments LMK04102SQX/NOPB is a dual-channel clock jitter cleaner and synthesizer optimized for SDH and SONET telecommunications applications in a 48-pin QFN package. It generates ultra-low-jitter clocks with integrated PLL for synchronization of line cards and switching fabrics. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 49
- Lifecycle
- ACTIVE
- Datasheet
- LMK04102SQX/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $10.8300(MOQ 2500)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LMK04102SQX/NOPB?
- Dual-channel low-jitter clock synthesizer with integrated PLL targeting SDH and SONET line rates for telecom synchronization applications
- 48-pin QFN (LCC48) package with 0.5 mm pitch enabling compact clock distribution in high-density line card and switching fabric PCB designs
- RoHS-compliant lead-free construction (NOPB, JESD-609 e3) for deployment in modern telecom equipment meeting environmental regulations
What is LMK04102SQX/NOPB used for?
The LMK04102SQX/NOPB is designed for SDH and SONET synchronization systems where 2 independent low-jitter clock outputs are required for framing, serialization, and switching fabric timing in OC-3 to OC-192 line cards. Its integrated PLL cleans reference clock jitter from system backplane clocks, ensuring compliant timing margins for SONET/SDH equipment. The device is also used in test and measurement equipment and high-speed serial data links requiring sub-100 fs RMS jitter performance.
What are the specifications of LMK04102SQX/NOPB?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Applications | SDH; SONET |
| JESD-30 Code | S-PQCC-N48 |
| JESD-609 Code | e3 |
| Number of Channels | 2 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC48,.28SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Telecom IC Type | ATM/SONET/SDH SUPPORT CIRCUIT |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the LMK04102SQX/NOPB datasheet?
LMK04102SQX/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LMK04102SQX/NOPB?
Compatible alternatives and drop-in replacements for LMK04102SQX/NOPB:
Frequently Asked Questions
What communication standards is LMK04102SQX/NOPB optimized for and at what line rates?
The LMK04102SQX/NOPB is specifically designed for SDH (Synchronous Digital Hierarchy) and SONET (Synchronous Optical Network) applications supporting standard line rates from OC-3 (155.52 MHz) through OC-192 (9.953 GHz). Its 2-channel PLL architecture generates jitter-cleaned reference clocks for framer ICs, serializer-deserializers, and switching matrices in carrier-grade telecom line cards.
How many independent clock output channels does LMK04102SQX/NOPB provide and can they run at different frequencies?
The LMK04102SQX/NOPB provides 2 independent clock output channels. Both channels are driven from the integrated PLL, and each can be configured to output different divide ratios of the synthesized VCO frequency, allowing simultaneous delivery of, for example, 19.44 MHz and 155.52 MHz SONET reference clocks to different devices on the same board.
What package does LMK04102SQX/NOPB use and what does the footprint look like?
The LMK04102SQX/NOPB is housed in a 48-pin QFN package (JEDEC S-PQCC-N48) with a 7 mm x 7 mm square body and 0.5 mm lead pitch. The exposed thermal pad on the underside assists heat dissipation and should be soldered to a PCB ground plane, which is standard practice for QFN devices in high-frequency clock distribution layouts.
Is LMK04102SQX/NOPB a lead-free part and what does the NOPB suffix mean for procurement?
Yes, the NOPB suffix indicates the LMK04102SQX/NOPB is a No Lead (Pb-free) variant compliant with RoHS and JESD-609 e3 classification, using a lead-free tin finish rated for 260°C reflow profiles. When ordering for equipment destined for European or Asian markets with RoHS requirements, always specify the NOPB suffix rather than any legacy leaded version to ensure compliance and avoid customs issues.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 2500+ | $10.8300 | $27075.00 |
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