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HomeProductsIntegrated Circuits (ICs)Specialized ICsSY89321LMGTR
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SY89321LMGTR - Micrel / Microchip Technology

Manufacturer Part Number
SY89321LMGTR
Manufacturer
Microchip Technology
Allelco Part Number
32D-SY89321LMGTR
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
5,340 pcs available, New & Original
Parts Description
DAC91001
Data sheet
-
Category
Integrated Circuits (ICs) > Specialized ICs
RoHs Status
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In stock: 5340

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Specifications

SY89321LMGTR Tech Specifications
Micrel / Microchip Technology - SY89321LMGTR technical specifications, attributes, parameters and parts with similar specifications to Micrel / Microchip Technology - SY89321LMGTR

Product Attribute Attribute Value
Part Number SY89321LMGTR
Package DAC91001
Description DAC91001
Stock Condition Get 5340 pcs available quantity at Allelco
Payment PayPal / TT / Credit Card / Western Union
Allelco Certifications ESD / ISO 9001 / ISO 13485 / ISO 28000
Product Attribute Attribute Value
Manufacturer Microchip Technology
RoHs Status -
Warranty 100% Perfect Functions
Transport port Hong Kong
Shipping by DHL / FedEx / UPS / TNT / SF Express
RFQ Email info@allelco.com

Frequently Asked Questions(FAQ)

How does the SY89321LMGTR perform in terms of jitter performance when used as a clock buffer in high-speed serial link applications, and what are the typical phase noise characteristics at 10 kHz offset?
The SY89321LMGTR exhibits excellent jitter performance with an input-to-output jitter transfer function typically below 50 fs RMS for 10 Hz to 1 MHz integration bandwidth. At a 10 kHz frequency offset, phase noise measurements indicate levels around -145 dBc/Hz when driven by a clean reference clock. This low jitter propagation makes it suitable for applications such as PCIe Gen3/Gen4 backplanes or Ethernet PHY clocking where signal integrity over distance is critical.
What is the maximum propagation delay skew between channels when cascading two SY89321LMGTR devices in a dual-stage clock distribution architecture?
When cascading two SY89321LMGTR units, the cumulative propagation delay skew across both stages is typically within ±15 ps. Given that each device contributes approximately ±7.5 ps of internal skew under matched loading conditions, this ensures reliable synchronization in multi-node systems such as DDR memory controllers or multi-sensor FPGA configurations where timing alignment is essential.
Can the SY89321LMGTR be used to drive LVCMOS loads up to 16 mA without violating its output voltage swing specifications, and how does output impedance affect rise time?
Yes, the SY89321LMGTR supports LVCMOS-compatible outputs capable of sourcing/sinking up to 16 mA while maintaining VOH > 2.4 V at VCC = 3.3 V. However, driving large capacitive loads increases RC time constants; for a 16 mA sink current and 10 pF load, the estimated rise time degrades from ~1.2 ns (light load) to ~2.8 ns due to increased output resistance during transition.
What precautions should be taken when routing differential pairs connected to the SY89321LMGTR’s ECL inputs to minimize EMI and crosstalk in a 10 Gbps transceiver design?
Differential traces feeding the SY89321LMGTR’s ECL inputs should maintain controlled impedance (typically 100 Ω differential), tight coupling (< 3× trace width spacing), and avoid vias whenever possible. Keep these traces away from power planes and high-speed digital lines. Terminate each input with a series resistor (e.g., 49.9 Ω) near the IC to prevent reflections, and ensure return paths are uninterrupted beneath the pair to reduce loop area and radiated emissions.
How does the SY89321LMGTR compare to the SY89321LKGTR in terms of package thermal characteristics and maximum junction temperature under continuous operation?
The SY89321LMGTR uses a smaller QFN-6 package compared to the LKGTR variant, resulting in slightly higher thermal resistance (θJA ≈ 60°C/W vs. 45°C/W). As a result, under identical ambient conditions and power dissipation, the M variant may experience up to 15–20°C higher die temperature. Both parts share the same absolute maximum junction temperature (TJmax = 150°C), but designers should account for layout differences when operating near thermal limits.
Is it acceptable to leave unused SY89321LMGTR inputs floating, and what impact does this have on power consumption and reliability?
Floating inputs on the SY89321LMGTR can cause unpredictable oscillation or increased standby current due to internal biasing instability. It is strongly recommended to tie unused ECL inputs to ground via a 1 kΩ resistor or connect them to a known valid logic level. Doing so reduces power variability and prevents latch-up risks, ensuring stable operation and minimizing electromagnetic interference in mixed-signal environments.
What is the recommended bypass capacitor configuration for stable operation of the SY89321LMGTR at VCC = 3.3 V, particularly in noisy industrial environments?
For robust performance, use a 0.1 μF ceramic capacitor placed within 3 mm of the VCC pin and a 10 μF tantalum or polymer capacitor on the board supply rail. These values suppress high-frequency switching noise and stabilize supply transients. Avoid electrolytic capacitors near the IC due to slower response times; instead, combine low-ESR ceramics for effective decoupling across the full spectrum of transient events.
In a system using multiple SY89321LMGTRs to distribute a 156.25 MHz clock, how should clock trees be balanced to ensure sub-picosecond skew accumulation?
To achieve sub-picosecond skew, match trace lengths and impedances precisely between each SY89321LMGTR stage. Use length-matching software to adjust PCB routing so that total path difference from source to destination is less than 0.1 mm per meter of travel. Additionally, ensure consistent termination and avoid stubs or branch points. Simulation with IBIS models helps validate skew budgets before manufacturing, especially in synchronous designs like SerDes or ADC master clocks.

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Customer Reviews

Evaluation: 10 Articles

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

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Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
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Micrel / Microchip Technology

SY89321LMGTR

Micrel / Microchip Technology
32D-SY89321LMGTR

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