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LMK04826BISQ/NOPB
Texas Instruments
IC JITTER CLEANER 64WQFN
1430 Pcs New Original In Stock
Jitter Cleaner IC 2.5GHz 1 64-WFQFN Exposed Pad
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5.0 / 5.0
- (393 Ratings)
LMK04826BISQ/NOPB
Product Overview
1387055
DiGi Electronics Part Number
LMK04826BISQ/NOPB-DGManufacturer
Texas Instruments
LMK04826BISQ/NOPB
Description
IC JITTER CLEANER 64WQFNInventory
1430 Pcs New Original In Stock
Jitter Cleaner IC 2.5GHz 1 64-WFQFN Exposed Pad
Quantity
Minimum 1
Minimum 1
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LMK04826BISQ/NOPB Technical Specifications
Category
Clock/Timing, Clock Generators, PLLs, Frequency Synthesizers
Packaging
Cut Tape (CT) & Digi-Reel®
Series
PLLatinum™
Product Status
Active
DiGi-Electronics Programmable
Not Verified
Type
Jitter Cleaner
PLL
Yes
Input
LVCMOS, LVDS, LVPECL
Output
HSDS, LCPECL, LVCMOS, LVDS, LVPECL
Number of Circuits
1
Ratio - Input:Output
3:15
Differential - Input:Output
Yes/Yes
Frequency - Max
2.5GHz
Divider/Multiplier
Yes/No
Voltage - Supply
3.15V ~ 3.45V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
64-WFQFN Exposed Pad
Supplier Device Package
64-WQFN (9x9)
Base Product Number
LMK04826
Datasheet & Documents
Manufacturer Product Page
LMK04826BISQ/NOPB Specifications
HTML Datasheet
LMK04826BISQ/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
296-51341-1
296-51341-2
LMK04826BISQ/NOPB-DG
296-51341-6
Standard Package
1,000
Alternative Parts
View DetailsPART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
항상 좋은 가격에 구매할 수 있어서 감사하고 포장도 친환경적입니다.
de desembre 02, 2025
디지 일렉트로닉스의 배송 시점 준수에 정말 감탄합니다. 항상 약속된 시간에 맞춰 상품이 도착해서 신뢰가 갑니다.
de desembre 02, 2025
La gestion précise de leur inventaire m’aide à respecter mes délais de livraison.
de desembre 02, 2025
Their online customer service staff is courteous and always willing to go the extra mile.
de desembre 02, 2025
Their products have proven to be long-lasting and cost-effective.
de desembre 02, 2025
Shipment was remarkably quick, and the packaging protected my items excellently.
de desembre 02, 2025
Their delivery tracking was very transparent and easy to access.
de desembre 02, 2025
My order arrived quickly, and the support team was attentive throughout the process.
de desembre 02, 2025
Their fast response to order inquiries makes our procurement process smoother.
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Frequently Asked Questions (FAQ)
What are the critical power supply noise considerations when designing in the LMK04826BISQ/NOPB for high-frequency clocking applications?
When designing with the LMK04826BISQ/NOPB, power supply noise is critical due to its sensitivity at output frequencies up to 2.5GHz. Use low-noise LDOs (not switching regulators) for AVDD and DVDD rails, and implement separate 10μF bulk capacitors with 0.1μF ceramic capacitors close to each supply pin. Pay special attention to the 3.15V–3.45V supply range: even small ripple (<50mV) can increase jitter in LVPECL/HSDS outputs. TI recommends ferrite beads between AVDD and DVDD domains to isolate digital switching noise. Always simulate PDN impedance below 1Ω up to 1GHz using tools like SPICE to prevent degradation in phase noise performance.
Can the LMK04826BISQ/NOPB replace the LMK04821NKDT in an existing jitter-cleaning design, and what are the key compatibility risks?
The LMK04826BISQ/NOPB can replace the LMK04821NKDT in many jitter-cleaning applications but with design-in risks. Both are in TI’s PLLatinum™ jitter cleaner family, but the LMK04826BISQ/NOPB supports up to 15 differential outputs (vs. 9 on LMK04821) and higher max frequency (2.5GHz). However, pin compatibility is not guaranteed—check landing patterns, especially for the 64-WQFN exposed pad thermal connection. Also, re-evaluate loop filter components as internal PLL architectures may differ. Firmware configuration via I2C may require register map updates. Always validate jitter performance with your reference clock source post-replacement.
How does thermal management impact the reliability of the LMK04826BISQ/NOPB in sustained high-output-load scenarios?
The LMK04826BISQ/NOPB’s 64-WQFN exposed pad must be properly soldered to a solid copper thermal plane (≥40mm²) to ensure long-term reliability under heavy output loading. With multiple LVPECL or HSDS outputs active, power dissipation can exceed 500mW, raising junction temperature beyond 85°C ambient. Without adequate via stitching to inner-layer ground planes, thermal resistance (ΘJA) increases, risking intermittent PLL unlock or accelerated aging. Monitor internal die temperature via the device’s built-in sensor if available, and derate output count at temperatures above 70°C to maintain MTBF > 1 million hours.
What are the signal integrity best practices for routing differential outputs from the LMK04826BISQ/NOPB to downstream FPGAs or ADCs?
To maintain signal integrity with the LMK04826BISQ/NOPB’s high-speed outputs (up to 2.5GHz), route all differential pairs as controlled-impedance 100Ω traces with tight length matching (±50 mils) and minimize vias. Use microstrip or stripline topologies with ground reference planes on adjacent layers. Avoid sharp bends; use 45° or curved traces. Terminate HSDS/LVPECL outputs at the receiver with 100Ω differential termination, and ensure AC coupling capacitors (if used) are placed close to the receiver. Keep clock traces away from switching digital lines to reduce crosstalk, as jitter accumulation can degrade system SNR in high-speed data converters.
What are the risks of using unverified programmable settings on the LMK04826BISQ/NOPB, and how can engineers ensure configuration reliability?
Using unverified programmable settings on the LMK04826BISQ/NOPB—especially as it's marked 'Programmable: Not Verified'—poses risks like incorrect PLL lock, spurious outputs, or excessive phase noise. Engineers must use TI’s Clock Design Tool to generate validated register maps based on their input/output frequencies and jitter requirements. Always verify I2C communication timing with pull-up resistors (1.5kΩ–4.7kΩ) tied to a stable 3.3V rail. Perform in-circuit validation using a phase noise analyzer or real-time oscilloscope with jitter decomposition. Store the final configuration in external non-volatile memory for robust power-up sequencing.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
LMK04826BISQ/NOPB CAD Models
Texas Instruments LMK04826BISQ/NOPB PCB symbols & footprints
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