LMK04011BISQ/NOPB Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
The LMK04011BISQ/NOPB is a low-noise clock synthesizer and jitter cleaner from Texas Instruments with a 1430 MHz to 1570 MHz VCO and 5 LVPECL/2VPECL differential outputs. It features a differential mux input and PLL-based architecture in a 48-pin WQFN package rated -40°C to 85°C. Available from stock worldwide.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 48
- Lifecycle
- ACTIVE
- Datasheet
- LMK04011BISQ/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $14.8500(MOQ 500)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1430 MHz to 1570 MHz integrated VCO delivers low phase-noise clock synthesis without an external VCO component
- 5 independent 2VPECL/LVPECL differential output pairs drive multiple clock loads simultaneously with 10 pF load capacitance per output
- PLL-based jitter cleaning reduces accumulated reference clock jitter for high-speed serial data links and ADC/DAC timing
- Differential input mux with conditioning selects between multiple reference clock sources for redundancy or reference switching applications
Applications
The LMK04011BISQ/NOPB is used in telecommunications line cards and high-speed data acquisition systems where a low-jitter LVPECL clock must be distributed to multiple serializer/deserializer (SerDes) blocks or high-speed ADCs simultaneously from a single PLL source. Its 1430 MHz to 1570 MHz VCO range supports direct synthesis of common telecom clock frequencies such as 1.544 GHz for T1/E1 equipment and OC-3 SONET framing. Test and measurement instruments also use it to clean reference oscillator jitter before fanning out to 5 differential clock channels across the measurement channel array.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | 4000/14000/40000 |
| Input Conditioning | DIFFERENTIAL MUX |
| JESD-30 Code | S-XQCC-N48 |
| JESD-609 Code | e3 |
| Load Capacitance (CL) | 10pF |
| Logic IC Type | PLL BASED CLOCK DRIVER |
| Max I(ol) | 0.0005A |
| Number of Functions | 1 |
| Number of True Outputs | 5 |
| Output Characteristics | 3-STATE |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | LCC48,.27SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 435mA |
| Qualification Status | Not Qualified |
| Same Edge Skew-Max (tskwd) | 0.1ns |
| Supply Voltage-Max (Vsup) | 3.45V |
| Supply Voltage-Min (Vsup) | 3.15V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Technology | BICMOS |
| 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 |
| fmax-Min | 1570MHz |
| 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 LMK04011BISQ/NOPB:
PLL Based Clock Driver, 4000/14000/40000 Series, 5 True Output(s), 0 Inverted Output(s), BICMOS
PLL Based Clock Driver, 4000/14000/40000 Series, 5 True Output(s), 0 Inverted Output(s), BICMOS
PLL Based Clock Driver, 4000/14000/40000 Series, 5 True Output(s), 0 Inverted Output(s), BICMOS
Frequently Asked Questions
What VCO frequency range does the LMK04011BISQ/NOPB cover and which telecom standards benefit from this range?
The LMK04011BISQ/NOPB integrates a VCO spanning 1430 MHz to 1570 MHz, which directly encompasses the 1.544 GHz T1 reference clock and is close to OC-3 SONET rates at 155.52 MHz after division; this makes it practical for telecom line-card applications requiring low-jitter synchronous clocking across multiple LVPECL outputs without an external oscillator.
How many differential clock outputs does the LMK04011BISQ/NOPB provide and what output logic standard do they use?
The LMK04011BISQ/NOPB provides 5 differential clock output pairs in the 2VPECL/LVPECL standard with a load capacitance spec of 10 pF per output; these LVPECL outputs can drive high-speed SerDes, ADC sample clocks, and FPGA global clock inputs with low skew across the 5 channels.
For a high-speed ADC clocking application requiring minimal aperture jitter, how does the LMK04011BISQ/NOPB improve system performance compared to a direct reference clock distribution?
The LMK04011BISQ/NOPB's PLL-based jitter cleaner filters wideband phase noise on the input reference before re-synthesizing the output clock from the 1430–1570 MHz VCO, reducing output jitter to levels compatible with 14-bit or 16-bit ADC aperture jitter budgets; direct distribution of a noisy reference without a jitter cleaner would degrade ADC SNR at sampling rates above 100 MHz.
What temperature range does the LMK04011BISQ/NOPB support and which industrial or telecom environments does this enable?
The LMK04011BISQ/NOPB is rated for -40°C to 85°C operation, covering the full industrial temperature range required by outdoor telecom base stations, ruggedized test equipment, and industrial automation controllers that experience wide ambient temperature swings, eliminating the need for a heater or cooler to maintain clock performance.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 500+ | $16.7000 | $8350.00 |
| 1000+ | $15.7800 | $15780.00 |
| 10000+ | $14.8500 | $148500.00 |
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