LMK04111SQX/NOPB Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
Texas Instruments LMK04111SQX/NOPB is a dual-channel clock conditioner with integrated PLL, targeting SDH and SONET applications in a 48-pin WQFN package. RoHS-compliant with lead-free e3 finish. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 49
- Lifecycle
- ACTIVE
- Datasheet
- LMK04111SQX/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $8.9000(MOQ 2500)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual-channel clock conditioning with integrated PLL for SDH/SONET telecom infrastructure
- Compact 48-pin WQFN (0.28" sq, 20-pad) package enabling high-density board layouts
- Lead-free e3 RoHS-compliant packaging with 15-year estimated end-of-life support
Applications
The LMK04111SQX/NOPB is designed for telecom and networking equipment requiring precise clock conditioning for SDH and SONET standards. Its integrated PLL with 2 output channels simplifies clock distribution in line cards, routers, and optical transport nodes. The 48-pin WQFN package supports compact, high-density PCB designs in communications infrastructure.
Specifications
| 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 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LMK04111SQX/NOPB:
Frequently Asked Questions
How many clock output channels does the LMK04111SQX/NOPB provide, and what telecom standards does it support?
The LMK04111SQX/NOPB provides 2 output channels with an integrated PLL, specifically designed for SDH and SONET telecom standards. This dual-channel architecture enables distribution of synchronized clocks to multiple system components in line cards and optical transport equipment operating at standard SDH/SONET rates.
For a compact telecom line card design, how much board space does the LMK04111SQX/NOPB WQFN package require?
The 48-pin WQFN package has a 0.28-inch square body with 20 exposed pads on the bottom, providing a very compact footprint for high-density telecom PCB designs. This allows integration of PLL clock conditioning in space-constrained line cards and blade servers without sacrificing thermal performance.
When would LMK04111SQX/NOPB be preferred over a discrete oscillator plus jitter cleaner solution in a SONET design?
LMK04111SQX/NOPB integrates both PLL and clock conditioning functions in a single 48-pin device, reducing BOM count compared to using separate oscillator and jitter cleaner ICs. For SONET applications requiring tight jitter specifications and 2 synchronized clock outputs, this integration reduces design complexity, board area, and power consumption in telecom equipment.
Related Guides
EEEFK1E470P Selection Guide for 47 uF SMD Aluminum Electrolytic Capacitors
Selection guidance for EEEFK1E470P and nearby Panasonic FK or FT SMD aluminum electrolytic capacitors for power-rail bulk decoupling.
Jul 7, 2026
EEEFT1V101AP Design Guide for SMD Aluminum Electrolytic Bulk Decoupling
Design guidance for using EEEFT1V101AP as an SMD aluminum electrolytic bulk capacitor in power-rail decoupling and hold-up networks.
Jul 7, 2026
How to Choose a 3528 SMD Indicator LED for Blue Status Lighting: Selection Guide
A practical 3528 SMD indicator LED selection guide using 150141BS73100 and related Wurth 150141 variants for blue status lighting.
Jul 5, 2026
BAS70KFILM Design Guide for Low-Leakage Signal Clamping and RF Detector Inputs
Practical BAS70KFILM design guidance for signal clamps, RF detector inputs, leakage control, capacitance, layout, and sourcing alternatives.
Jul 5, 2026
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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 2500+ | $8.9000 | $22250.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”