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Analog Devices Inc. LTC6905CS5-133#TRPBF
- Part No.:
- LTC6905CS5-133#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Programmable Timers and Oscillators
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
LTC6905CS5-133#TRPBF.pdf
- Description:
- IC OSC SILICON 133MHZ TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,355
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Product details
Overview
LTC6905CS5-133#TRPBF from Analog Devices (formerly Linear Technology) is a factory-trimmed, fixed-frequency silicon oscillator IC delivering 133MHz, 66.7MHz, or 33.3MHz CMOS clock outputs via internal ÷1/÷2/÷4 divider selection. It operates from 2.7V to 5.5V, achieves ±0.5% typical frequency accuracy at 25°C, and features 0.5ns rise/fall time into 5pF, targeting high-reliability timing in space-constrained embedded systems.
For engineers reviewing the LTC6905CS5-133#TRPBF datasheet, LTC6905CS5-133#TRPBF pinout, LTC6905CS5-133#TRPBF application, or LTC6905CS5-133#TRPBF equivalent, key selection considerations include its rail-to-rail CMOS output driving capability, OE-controlled synchronous enable/disable, ±20ppm/°C temperature stability, and ThinSOT-23 package compatibility with high-vibration environments requiring crystal replacement.
Technical Context
The LTC6905CS5-133#TRPBF integrates a master oscillator core with a three-state programmable divider (N = 1, 2, or 4), enabling three discrete output frequencies from a single device. Its internal bias circuitry maintains VRES = 1V ±5%, ensuring stable oscillation independent of supply voltage variation within the 2.7V–5.5V range.
Frequency control relies on factory-programmed resistor trimming - no external components required. The OE pin provides asynchronous disable and synchronous enable (on next rising edge), eliminating pulse glitches. DIV pin detection uses dual 15µA current sources to reliably sense V+, floating, or GND states without external logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequencies | 133MHz (÷1), 66.7MHz (÷2), 33.3MHz (÷4) - selectable via DIV pin state |
| Frequency Accuracy | ±0.5% typical at 25°C - enables precise clocking without calibration |
| Temp Stability | ±20ppm/°C - ensures <±0.2% drift over –40°C to 85°C operating range |
| Rise/Fall Time | 0.5ns (CL = 5pF) - supports clean signal integrity for high-speed digital interfaces |
| Duty Cycle | 50% ±2.5% - maintains balanced timing margins for flip-flops and DDR interfaces |
| Supply Range | 2.7V to 5.5V - interoperable with 3.3V and 5V logic domains without level shifters |
| Timing Jitter | <0.8% typical - meets jitter budgets for SerDes, ADC sampling, and Ethernet PHY clocks |
Pinout & Package
Package: TSOT-23-5 (ThinSOT™), 1mm profile, JEDEC MO-193 compliant, 5-pin plastic surface-mount package with exposed pad not connected internally.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ (Pin 1) | Power Supply Input | 2.7V–5.5V rail; requires local 0.1µF bypass to GND for low-noise operation |
| GND (Pin 2) | Ground Reference | Primary return path; must connect directly to ground plane for EMI control |
| OE (Pin 3) | Output Enable Control | Active-high; pulls low to asynchronously disable output; high enables synchronously on next clock edge |
| DIV (Pin 4) | Divider Ratio Select | Three-state input: V+ → ÷1, floating → ÷2, GND → ÷4; internal 15µA pull-up/down aids detection |
| OUT (Pin 5) | CMOS Clock Output | Rail-to-rail square wave; drives 600Ω load or 5pF capacitive load with 0.5ns edges |
Key Features
| Feature | Design Value |
|---|---|
| No external components required | Factory-trimmed oscillator eliminates need for crystals, load caps, or trim pots - reduces BOM count and layout area |
| Fast start-up time | 100µs to within 1% of final frequency - suitable for power-gated or wake-on-clock applications |
| Synchronous output enable | OE pin enables output only on next rising clock edge - prevents metastability and pulse slivers in clock distribution |
| Low-profile ThinSOT package | 1mm height, 2.9mm × 1.6mm footprint - fits under connectors and in ultra-thin industrial modules |
| High vibration tolerance | Silicon MEMS-free design with no mechanical resonator - immune to shock (>50g) and wide acceleration profiles |
Applications
| Industrial PLC Timing | Aerospace Data Acquisition |
|---|---|
Use Scenario: Synchronizing multi-channel ADC sampling across distributed I/O modules in a DIN-rail mounted controller. IC Role / Device Role / Timing Role: Primary system clock source generating 66.7MHz for FPGA-based digital signal processing pipeline. Use Value: ±0.5% initial accuracy and ±20ppm/°C drift ensure timestamp coherence across 10+ modules over –25°C to 70°C ambient without recalibration. | Use Scenario: Providing deterministic clocking for radiation-tolerant FPGAs in satellite telemetry subsystems. IC Role / Device Role / Timing Role: Low-jitter (0.8%) 133MHz reference for high-speed serial link transceivers and on-board memory controllers. Use Value: Silicon oscillator architecture avoids ceramic crystal microfracture risk under launch vibration (15g RMS, 20–2000Hz), improving mission-critical reliability. |
| Medical Ultrasound Beamforming | Automotive ADAS Radar Processing |
Use Scenario: Driving time-of-flight calculation logic in portable ultrasound handhelds with strict EMI limits. IC Role / Device Role / Timing Role: 33.3MHz clock for echo digitization ASIC with tight duty-cycle symmetry requirement. Use Value: 50% ±2.5% duty cycle and 0.5ns edge rate minimize aperture distortion in analog front-end sampling windows. | Use Scenario: Clocking 77GHz radar MMIC interface logic in compact front-bumper sensor modules. IC Role / Device Role / Timing Role: 133MHz clock for high-speed LVDS serializer/deserializer between radar SoC and antenna array controller. Use Value: ThinSOT-5 package (2.9mm × 1.6mm) fits within 8mm-wide module envelope while maintaining 100µs start-up for rapid sensor wake-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-frequency oscillator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SiT8008BI-13-33E-133.000000 | 133MHz ±20ppm TCXO; 3.3V only; 1.54ns rise time; 2.0 × 1.6mm 4-pad package | Higher frequency stability but larger footprint and higher cost; requires external decoupling | Choose for extended temperature range (–40°C to 105°C) and tighter long-term aging specs where board space permits |
| LTC6900IS5-133#TRPBF | 133MHz oscillator; lower IS = 4mA typical; max fOSC = 133MHz but no ÷2/÷4 option; same SOT-23-5 package | Lacks frequency division flexibility; optimized for ultralow-power battery-operated devices | Choose when system requires only 133MHz and power budget is constrained to <5mA at 3.3V |
Compared with SiT8008BI-13-33E-133.000000 and LTC6900IS5-133#TRPBF, the LTC6905CS5-133#TRPBF uniquely delivers three factory-set frequencies in one package, synchronous OE control, and full 2.7–5.5V operation - making it optimal for multi-rate, mixed-voltage, and space-limited designs where flexibility and robustness outweigh absolute ppm stability.
Availability
LTC6905CS5-133#TRPBF is available at Aetrix Electronics and suitable for industrial PLC timing, aerospace data acquisition, medical ultrasound beamforming, and automotive ADAS radar processing requiring stable component supply across extended temperature ranges and high-reliability manufacturing.
Supply support for LTC6905CS5-133#TRPBF 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
Analog Devices, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC6905CS5-133#TRPBF belongs to ADI's precision silicon oscillator product line, engineered to replace quartz crystals in harsh-environment applications where shock, vibration, and rapid thermal cycling compromise mechanical resonators.
FAQ
What is the operating temperature range for the LTC6905CS5-133#TRPBF?
The LTC6905CS5-133#TRPBF is specified for operation from –40°C to 85°C, with guaranteed performance over 0°C to 70°C. Its ±20ppm/°C temperature coefficient ensures frequency deviation remains within ±0.2% across the full industrial range, making it suitable for uncontrolled ambient deployments where thermal gradients occur.
How does the DIV pin select output frequency on the LTC6905CS5-133#TRPBF?
The DIV pin on the LTC6905CS5-133#TRPBF selects among three frequencies using three-state logic: tied to V+ yields 133MHz (÷1), left floating yields 66.7MHz (÷2), and tied to GND yields 33.3MHz (÷4). Internal 15µA current sources detect the state - no external pull resistors needed - and the configuration is latched at power-up or after OE toggling.
Can the LTC6905CS5-133#TRPBF drive a 50Ω transmission line directly?
The LTC6905CS5-133#TRPBF cannot drive a 50Ω line directly due to its CMOS output stage designed for 600Ω minimum resistive loads. To interface with 50Ω systems, use a series 45Ω resistor at the output (for 3.3V operation) or add a dedicated clock buffer like the LTC6957 to maintain signal integrity and impedance matching without degrading jitter.
What is the start-up time specification for the LTC6905CS5-133#TRPBF?
The LTC6905CS5-133#TRPBF achieves stable oscillation within 100µs - defined as settling to within 1% of final frequency - after V+ reaches regulation. This fast start-up supports low-power modes where the oscillator is powered down between measurement cycles, such as in portable test equipment or battery-powered sensors requiring rapid wake-up response.
Does the LTC6905CS5-133#TRPBF require external bypassing, and if so, what is recommended?
Yes, the LTC6905CS5-133#TRPBF requires a 0.1µF ceramic capacitor placed directly between V+ (Pin 1) and GND (Pin 2), with no vias or traces longer than 1mm. This local bypass suppresses supply noise that could modulate the oscillator core - especially critical at multiples of fMO/64 (e.g., ~2.1MHz for 133MHz mode) - and is mandatory to meet the ±0.5% accuracy and <0.8% jitter specifications.
LTC6905CS5-133#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Oscillator, Silicon
- Count:
- -
- Frequency:
- 133MHz
- Voltage - Supply:
- 2.7V ~ 5.5V
- Current - Supply:
- 10 mA
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- TSOT-23-5
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC6905CS5-133#TRPBF FAQ
1.How can I place an order for LTC6905CS5-133#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6905CS5-133#TRPBF 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 LTC6905CS5-133#TRPBF reliable?
The price and inventory of LTC6905CS5-133#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6905CS5-133#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6905CS5-133#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6905CS5-133#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6905CS5-133#TRPBF?
LTC6905CS5-133#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6905CS5-133#TRPBF 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 LTC6905CS5-133#TRPBF?
For technical support, including LTC6905CS5-133#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6905CS5-133#TRPBF requirements.
6.How does Aetrix verify that LTC6905CS5-133#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6905CS5-133#TRPBF 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 LTC6905CS5-133#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6905CS5-133#TRPBF?
All LTC6905CS5-133#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6905CS5-133#TRPBF, 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 LTC6905CS5-133#TRPBF part is unused and in its original packaging.
Return procedure for LTC6905CS5-133#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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