LMK04100SQ/NOPB Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
Texas Instruments LMK04100SQ/NOPB is a 2-channel clock conditioner with integrated PLL in a 48-pin WQFN package, designed for SDH and SONET jitter-attenuation applications. RoHS-compliant lead-free construction. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 49
- Lifecycle
- ACTIVE
- Datasheet
- LMK04100SQ/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $7.6700(MOQ 500)
- 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 LMK04100SQ/NOPB?
- Integrated dual-PLL clock conditioner delivers sub-picosecond RMS jitter attenuation for SONET/SDH line cards and optical transport networks
- 2-channel architecture in a compact 48-pin WQFN (7 mm × 7 mm) minimises PCB area versus discrete PLL plus buffer solutions
- Supports SDH and SONET reference switching with hitless output, ensuring continuous clock output during reference changeover events
What is LMK04100SQ/NOPB used for?
The LMK04100SQ/NOPB is designed for SONET OC-48/OC-192 and SDH STM-16/STM-64 line-card clock conditioning, where low-jitter synchronization is critical for frame synchronization and payload integrity. Telecom switching fabrics and optical add-drop multiplexers (OADMs) use it to clean recovered clocks from upstream links. It also suits 10 Gigabit Ethernet backplane timing distribution in data-center switching equipment.
What are the specifications of LMK04100SQ/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 | 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 LMK04100SQ/NOPB datasheet?
LMK04100SQ/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LMK04100SQ/NOPB?
Compatible alternatives and drop-in replacements for LMK04100SQ/NOPB:
Frequently Asked Questions
How many clock output channels does the LMK04100SQ/NOPB provide, and which telecom standards does it target?
The LMK04100SQ/NOPB provides 2 independent output channels and is specifically designed for SDH and SONET applications. It supports clock conditioning for OC-48 and OC-192 line rates, delivering jitter attenuation that meets ITU-T G.813 and GR-1244 synchronization requirements for telecom infrastructure.
What package does the LMK04100SQ/NOPB use, and how does that affect thermal management on a line card?
It is housed in a 48-pin WQFN (0.28 sq, 7 mm × 7 mm footprint) with an exposed thermal pad. The exposed pad connects directly to the PCB ground plane, allowing efficient heat spreading with a thermal resistance of approximately 20 °C/W in a typical 4-layer PCB layout.
What jitter performance does the LMK04100SQ/NOPB deliver for SONET clock conditioning?
The LMK04100SQ/NOPB achieves sub-picosecond RMS phase jitter on its outputs after PLL filtering, meeting the SONET jitter generation limit of 0.01 UI RMS specified in GR-253. Its on-chip PLL loop filter attenuates input reference jitter by 40 dB or more within the loop bandwidth.
Is the LMK04100SQ/NOPB RoHS-compliant, and what is its JEDEC moisture sensitivity classification?
Yes, the LMK04100SQ/NOPB is fully RoHS-compliant (JESD-609 code e3, lead-free). The WQFN plastic-epoxy package carries a standard MSL rating applicable to SMT reflow processing up to 260 °C peak, making it suitable for Pb-free wave and reflow soldering production lines.
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Why Buy from FindMyChip
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 |
|---|---|---|
| 500+ | $8.6300 | $4315.00 |
| 1000+ | $8.1500 | $8150.00 |
| 10000+ | $7.6700 | $76700.00 |
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