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LMK04033BISQ/NOPB
Texas Instruments
IC CLOCK COND 48WQFN
13193 Pcs New Original In Stock
Clock Conditioner IC 2.16GHz 1 48-WFQFN Exposed Pad
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5.0 / 5.0
- (242 Ratings)
LMK04033BISQ/NOPB
Product Overview
1291763
DiGi Electronics Part Number
LMK04033BISQ/NOPB-DGManufacturer
Texas Instruments
LMK04033BISQ/NOPB
Description
IC CLOCK COND 48WQFNInventory
13193 Pcs New Original In Stock
Clock Conditioner IC 2.16GHz 1 48-WFQFN Exposed Pad
CAD Models - PCB Symbols & Footprints
Quantity
Minimum 1
Minimum 1
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LMK04033BISQ/NOPB Technical Specifications
Category
Clock/Timing, Clock Generators, PLLs, Frequency Synthesizers
Packaging
Tape & Reel (TR)
Series
-
Product Status
Active
DiGi-Electronics Programmable
Not Verified
Type
Clock Conditioner
PLL
Yes
Input
LVCMOS, LVDS, LVPECL
Output
LVCMOS, LVDS, 2VPECL, LVPECL
Number of Circuits
1
Ratio - Input:Output
2:6
Differential - Input:Output
Yes/Yes
Frequency - Max
2.16GHz
Divider/Multiplier
Yes/Yes
Voltage - Supply
3.15V ~ 3.45V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
48-WFQFN Exposed Pad
Supplier Device Package
48-WQFN (7x7)
Base Product Number
LMK04033
Datasheet & Documents
HTML Datasheet
LMK04033BISQ/NOPB-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
3 (168 Hours)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
2156-LMK04033BISQ/NOPB
TEXTISLMK04033BISQ/NOPB
LMK04033BISQ-DG
LMK04033BISQ
Standard Package
1,000
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
Les prix sont expliqués en détail, ce qui me rassure énormément.
Dec 02, 2025
Their after-sales services are efficient and respectful.
Dec 02, 2025
The packaging was not only eco-friendly but also well-designed to prevent damage during transit.
Dec 02, 2025
The durability of this product has exceeded my expectations, and the packaging was pristine.
Dec 02, 2025
The fast load times help me decide on purchases rapidly, making shopping efficient.
Dec 02, 2025
Their customer support team is well-trained to assist after the purchase.
Dec 02, 2025
Their customer-first approach, coupled with fair pricing, is impressive.
Dec 02, 2025
Their售后响应 team is always professional and quick to solve my concerns, which I truly appreciate.
Dec 02, 2025
The after-sales support is outstanding, providing quick solutions whenever I had inquiries.
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Frequently Asked Questions (FAQ)
Can the LMK04033BISQ/NOPB replace the LMK04032BISQ/NOPB in a high-jitter-performance clock tree design without redesigning the power supply or layout?
Yes, the LMK04033BISQ/NOPB can generally replace the LMK04032BISQ/NOPB with minimal layout changes, as both share the same 48-WQFN package, supply voltage range (3.15V to 3.45V), and pinout architecture. However, verify the phase detector frequency and loop filter design, as differences in internal PLL tuning may impact jitter performance. The LMK04033BISQ/NOPB includes improved power supply noise rejection, which can reduce sensitivity to board-level noise but may require validation of loop stability if the external VCO/VCXO differs. Always simulate phase margin using TI’s PLLatinum tool before finalizing the upgrade.
What are the key design-in risks when using the LMK04033BISQ/NOPB in a mixed-signal system with high-speed LVDS and LVPECL outputs operating near 2.16GHz?
The primary design-in risks with the LMK04033BISQ/NOPB in mixed-signal systems are crosstalk between high-speed differential outputs and power supply noise coupling into sensitive analog sections. To mitigate, ensure strict impedance control (100Ω ±10%) on all differential pairs, use ground stitching vias near output traces, and isolate LVPECL (higher swing) routes from LVDS. Also, place low-ESR 0.1µF and 1µF decoupling capacitors within 2mm of each VDD pin, and consider a dedicated LDO for the LMK04033BISQ/NOPB to suppress shared rail noise. Route outputs away from input lines to prevent feedback and spurious tones.
How does the LMK04033BISQ/NOPB handle degraded input clock signals (e.g., jitter, rise time, or amplitude issues) from a nearby FPGA in a high-reliability industrial system?
The LMK04033BISQ/NOPB features built-in input equalization and wide input swing support across LVCMOS, LVDS, and LVPECL standards, enabling it to recondition marginally degraded clock signals from FPGAs. However, if input jitter exceeds 0.5 UI or rise/fall times are outside datasheet limits, the internal PLL may increase phase error or fail lock. For high-reliability systems, monitor the LOSS_OF_LOCK pin and use TI’s WEBENCH Clock Architect to model input jitter transfer function. Always buffer low-amplitude or long-trace FPGA outputs with a dedicated fanout buffer ahead of the LMK04033BISQ/NOPB to preserve signal integrity.
What are the thermal and long-term reliability concerns when the LMK04033BISQ/NOPB operates continuously at 85°C ambient in a sealed outdoor enclosure?
At 85°C ambient in a sealed enclosure, the LMK04033BISQ/NOPB’s junction temperature could approach or exceed its safe operating limit (typically 125°C) due to power dissipation from multiple high-speed outputs. Without airflow, thermal buildup increases electromigration risk and degrades timing accuracy. To improve reliability, use 2-oz copper PCB layers, connect the exposed pad to a large ground plane with multiple thermal vias, and limit simultaneous switching outputs. Consider derating maximum frequency or adding a thermal pad interface material if ambient exceeds 75°C. Monitor early failure rates during burn-in testing.
Is the LMK04033BISQ/NOPB a suitable pin-compatible upgrade for the MAX9275A in automotive ADAS clock distribution networks, and what integration challenges should be expected?
The LMK04033BISQ/NOPB is not pin-compatible with the MAX9275A, as they differ in package (48-WQFN vs. 48-TQFP) and functional architecture (clock conditioner vs. serializer clock recovery). However, in ADAS systems requiring a precise, low-jitter local clock source, the LMK04033BISQ/NOPB can serve as a replacement timing solution when paired with external deserialization logic. Key integration challenges include synchronizing PLL lock timing with system power-up sequencing, managing EMI from high-frequency outputs near RF bands, and ensuring automotive AEC-Q100 compliance — which the LMK04033BISQ/NOPB does not support. Always validate EMC performance in the full assembly.
Quality Assurance (QC)
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LMK04033BISQ/NOPB CAD Models
Texas Instruments LMK04033BISQ/NOPB PCB symbols & footprints
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