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Texas Instruments LMK60A0-148M35SIAR
- Part No.:
- LMK60A0-148M35SIAR
- Manufacturer:
- Texas Instruments
- Category:
- Oscillators
- Package:
- 6-SMD Module
- Datasheet:
-
LMK60A0-148M35SIAR.pdf
- Description:
- SILICONE OSC XO 148.3500MHZ LVDS
- Quantity:
- Payment:
- Shipping:
Inventory:9,256
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Product details
Overview
LMK60A0-148M35SIAR from Texas Instruments is a factory-programmed, low-jitter LVDS oscillator delivering 148.35 MHz output with ±25 ppm total frequency tolerance, 3.3-V supply operation, and 150 fs RMS phase jitter (12 kHz–20 MHz). It serves as a high-stability clock reference in FPGA and processor timing systems requiring precise differential signaling.
For engineers reviewing the LMK60A0-148M35SIAR datasheet, LMK60A0-148M35SIAR pinout, LMK60A0-148M35SIAR application, or LMK60A0-148M35SIAR equivalent, key selection criteria include its LVDS output compatibility, industrial temperature range (–40°C to +85°C), 7-mm × 5-mm QFM package, OE-controlled output enable/disable functionality, and PSRR of –60 dBc against supply ripple.
Technical Context
The LMK60A0-148M35SIAR integrates a high-performance PLL-based oscillator core optimized for low phase noise and robust power supply rejection. Its internal power conditioning circuitry achieves –60 dBc PSRR across 50 kHz–1 MHz supply ripple frequencies while maintaining stable LVDS output swing of 300–480 mV over 10–800 MHz.
This device operates exclusively in LVDS mode at its pre-programmed 148.35 MHz frequency, with differential outputs (OUTP/OUTN), an LVCMOS OE control input with internal pull-up, and a dedicated GND/VDD pair-no configuration pins or external programming interface are present.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency | 148.35 MHz - fixed factory-programmed value; no user tuning or frequency selection required. |
| Output Format | LVDS - differential signaling compliant with ANSI/TIA/EIA-644-A; requires 100-Ω termination across OUTP/OUTN. |
| Total Frequency Tolerance | ±25 ppm - includes initial calibration, temperature drift (–40°C to +85°C), supply variation, solder reflow, and 5-year aging. |
| RMS Phase Jitter | 150 fs (typical, 12 kHz–20 MHz) - enables compliance with stringent SerDes and high-speed interface timing budgets. |
| Supply Voltage | 3.3 V ±5% - single-rail operation; decoupling requires 10 µF, 1 µF, and 0.1 µF capacitors per TI layout guidelines. |
| PSRR | –60 dBc - suppresses power supply noise up to 1 MHz, reducing need for ultra-clean LDOs in system power delivery network. |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments; junction temperature limited to 120°C under continuous operation. |
Pinout & Package
LMK60A0-148M35SIAR uses a 6-pin Quad Flat Module (QFM) package designated SIA, measuring 7 mm × 5 mm × 1.15 mm max height, pin-compatible with industry-standard 7050 XO footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No-connect | Unbonded pad; must remain floating-no routing or connection permitted. |
| 2 (OE) | Output Enable | LVCMOS input with internal pull-up; drives outputs to high-impedance when pulled low (VIL ≤ 0.6 V). |
| 3 (GND) | Ground | Primary analog/digital ground reference; requires ≥3 thermal vias to internal ground plane for thermal reliability. |
| 4 (OUTN) | Differential Output (N) | Inverted LVDS output leg; paired with OUTP to deliver 300–480 mVpp differential swing into 100 Ω load. |
| 5 (OUTP) | Differential Output (P) | Non-inverted LVDS output leg; forms true differential pair with OUTN for common-mode noise rejection. |
| 6 (VDD) | Power Supply | 3.3-V analog/digital supply input; bypassing with 10 µF/1 µF/0.1 µF capacitors is mandatory for jitter performance. |
Key Features
| Feature | Design Value |
|---|---|
| Low-jitter oscillator core | 150 fs RMS phase jitter (12 kHz–20 MHz) enables reliable operation in 10G+ Ethernet, PCIe Gen4/5, and JESD204B systems. |
| LVDS output compliance | 300–480 mVpp differential swing and 125-Ω output impedance meet ANSI/TIA/EIA-644-A specifications for point-to-point interconnects. |
| High PSRR architecture | –60 dBc suppression of 50 kHz–1 MHz supply ripple eliminates need for dedicated low-noise regulators in cost-sensitive designs. |
| Industrial temperature rating | –40°C to +85°C operation with full parameter guarantee supports deployment in base station radios, industrial controllers, and medical imaging equipment. |
| OE-controlled output disable | Sub-50 µs output disable/enable timing allows dynamic clock gating during low-power states without external logic or power sequencing complexity. |
Applications
| 10G Ethernet Line Cards | FPGA-Based Video Processing |
|---|---|
Use Scenario: Clocking 10GBASE-R PHY transceivers and MAC layers in telecom line cards operating in thermally demanding chassis environments. IC Role / Device Role / Timing Role: Primary LVDS reference clock source synchronizing SERDES lanes and packet processing logic. Use Value: 150 fs jitter ensures <1 × 10⁻¹² BER under worst-case channel loss; ±25 ppm stability maintains frame alignment across temperature cycling. | Use Scenario: Providing pixel-clock and sampling-clock references for multi-channel HD/4K video capture and encoding pipelines on Xilinx Zynq or Intel Arria FPGA platforms. IC Role / Device Role / Timing Role: Low-noise LVDS clock generator feeding FPGA transceiver banks and DDR4 memory controllers. Use Value: Matched 148.35 MHz output aligns precisely with SMPTE ST 292/424 standards; LVDS drive strength supports >15 cm trace lengths without signal integrity degradation. |
| Medical Ultrasound Beamformers | Industrial PLC Timing Modules |
Use Scenario: Generating synchronized sampling clocks for 128+ channel ADC arrays in real-time ultrasound beamforming subsystems. IC Role / Device Role / Timing Role: Ultra-low-jitter master oscillator distributing phase-coherent clocks to distributed ADC front-ends. Use Value: 150 fs RMS jitter minimizes time-of-flight measurement uncertainty; industrial temp range ensures stable operation inside sealed ultrasound probe housings. | Use Scenario: Delivering deterministic timing references to real-time I/O modules and motion control ASICs in programmable logic controller backplanes. IC Role / Device Role / Timing Role: High-reliability clock source for deterministic Ethernet (TSN) and servo-loop synchronization. Use Value: ±25 ppm frequency tolerance guarantees sub-microsecond time-synchronization accuracy over full industrial temperature range and 5-year field life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar oscillator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMK60E0-156257SIAR | 156.257 MHz LVPECL output; ±25 ppm tolerance; same 6-pin QFM package and 3.3-V supply. | Targets 156.25 MHz Ethernet/SONET clock trees; incompatible with 148.35 MHz video timing requirements. | Select only if system requires LVPECL signaling and 156.257 MHz frequency-no electrical or mechanical substitution possible for LMK60A0-148M35SIAR. |
| Si510-148M35-AG | 148.35 MHz LVDS output; ±20 ppm tolerance; 5-pin SOIC package; requires external configuration EEPROM. | Programmable frequency and output format; higher flexibility but longer startup time (5 ms vs. 10 ms) and no OE pin. | Choose for design-in flexibility where programmability justifies added BOM cost and layout complexity; not drop-in compatible due to pin count and control interface differences. |
Compared with LMK60A0-148M35SIAR, LMK60E0-156257SIAR offers identical stability and package but mismatched frequency and output standard, while Si510-148M35-AG provides tighter tolerance and configurability at the expense of pin compatibility, OE control, and guaranteed startup timing.
Availability
LMK60A0-148M35SIAR is available at Aetrix Electronics and suitable for 10G Ethernet line cards, FPGA-based video processing, medical ultrasound beamformers, and industrial PLC timing modules requiring stable component supply across extended production lifecycles.
Supply support for LMK60A0-148M35SIAR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in precision timing, power management, and signal chain solutions.
The LMK60XX product line delivers high-performance, low-jitter oscillators targeting clocking requirements in networking infrastructure, data center servers, test equipment, and high-end imaging systems where phase noise and supply immunity are critical.
FAQ
What output format does the LMK60A0-148M35SIAR support?
The LMK60A0-148M35SIAR is factory-programmed exclusively for LVDS output. It delivers a 148.35 MHz differential clock signal compliant with ANSI/TIA/EIA-644-A, with typical swing of 300–480 mVpp into a 100-Ω load. No configuration or mode selection is possible-the device does not support LVPECL, HCSL, or other formats.
Does the LMK60A0-148M35SIAR require external configuration or programming?
No, the LMK60A0-148M35SIAR is fully factory-programmed and requires no external configuration. Its 148.35 MHz LVDS output, ±25 ppm stability, and 3.3-V operation are fixed at manufacture. There are no I²C, SPI, or pin-strapping interfaces-only OE control and power connections are active.
What is the function of Pin 1 (NC) on the LMK60A0-148M35SIAR?
Pin 1 is designated NC (No Connect) and corresponds to an unconnected, unbonded die pad. It must remain electrically floating-no trace, via, or component should be attached. Routing to this pin violates TI's mechanical and reliability specifications and may compromise thermal performance or ESD robustness.
How does the OE pin affect output behavior in the LMK60A0-148M35SIAR?
When OE is pulled low (≤0.6 V), the LMK60A0-148M35SIAR disables both OUTP and OUTN outputs, placing them in high-impedance state within 50 µs. With OE open or high (≥1.4 V), outputs are enabled and stabilized within 10 ms after VDD reaches 3.135 V. Internal pull-up ensures default-enabled operation if OE is left unconnected.
Is the LMK60A0-148M35SIAR pin-compatible with other LMK60XX variants?
Yes, all LMK60XX devices-including LMK60A0-148M35SIAR, LMK60E0-156257SIAR, and LMK60E2-150M00SIAR-share the identical 6-pin SIA QFM package (7 mm × 5 mm) and pinout. However, frequency, output format, and total tolerance differ by part number; swapping without verifying signal compatibility will cause system-level timing failure.
LMK60A0-148M35SIAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMK60XX
- Package/Case:
- 6-SMD Module
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Base Resonator:
- Silicon
- Type:
- XO (Standard)
- Frequency:
- 148.35 MHz
- Function:
- Enable/Disable
- Output:
- LVDS
- Voltage - Supply:
- 3.3V
- Frequency Stability:
- ±25ppm
- Absolute Pull Range (APR):
- -
- Operating Temperature:
- -40°C ~ 85°C
- Spread Spectrum Bandwidth:
- -
- Current - Supply (Max):
- 196mA
- Ratings:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-QFM (7x5)
- Size / Dimension:
- 0.276" L x 0.197" W (7.00mm x 5.00mm)
- Height - Seated (Max):
- 0.045" (1.15mm)
LMK60A0-148M35SIAR FAQ
1.How can I place an order for LMK60A0-148M35SIAR through Aetrix?
Please submit a Request for Quotation (RFQ) for LMK60A0-148M35SIAR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LMK60A0-148M35SIAR reliable?
The price and inventory of LMK60A0-148M35SIAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMK60A0-148M35SIAR is usually 5 days.
3.What payment methods are accepted for LMK60A0-148M35SIAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMK60A0-148M35SIAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMK60A0-148M35SIAR?
LMK60A0-148M35SIAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMK60A0-148M35SIAR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LMK60A0-148M35SIAR?
For technical support, including LMK60A0-148M35SIAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMK60A0-148M35SIAR requirements.
6.How does Aetrix verify that LMK60A0-148M35SIAR is sourced from the original manufacturer or authorized distributors?
All LMK60A0-148M35SIAR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LMK60A0-148M35SIAR meets industry standards.
7.What is the process for return or replacement of LMK60A0-148M35SIAR?
All LMK60A0-148M35SIAR units undergo pre-shipment inspection (PSI). If there is an issue with LMK60A0-148M35SIAR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LMK60A0-148M35SIAR part is unused and in its original packaging.
Return procedure for LMK60A0-148M35SIAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMK60A0-148M35SIAR Tags
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