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Analog Devices Inc. LTC6930CDCB-8.00#TRPBF
- Part No.:
- LTC6930CDCB-8.00#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Programmable Timers and Oscillators
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC6930CDCB-8.00#TRPBF.pdf
- Description:
- IC OSC SILICON 8MHZ 8-DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,257
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Product details
Overview
LTC6930CDCB-8.00#TRPBF from Analog Devices (formerly Linear Technology) is a digitally controlled, precision silicon oscillator with factory-set 8.000000MHz master frequency, selectable via DIV pins across eight output frequencies from 62.5kHz to 8MHz. It delivers ±0.1% frequency accuracy over 0°C to 70°C, <110µs start-up time, and 490µA typical supply current at 8MHz/3V. It serves as a low-power clock source in battery-operated microcontroller systems.
For engineers reviewing the LTC6930CDCB-8.00#TRPBF datasheet, LTC6930CDCB-8.00#TRPBF pinout, LTC6930CDCB-8.00#TRPBF application, or LTC6930CDCB-8.00#TRPBF equivalent, key selection criteria include initial frequency error (<0.09% typ), RMS period jitter (<0.8nsP-P at 8MHz), supply voltage range (1.7V–5.5V), DCB package thermal performance (θJA = 64°C/W), and DIV pin logic compatibility with standard CMOS interfaces.
Technical Context
The LTC6930CDCB-8.00#TRPBF implements a proprietary switched-capacitor feedback loop to stabilize its internal 8MHz master oscillator against temperature and supply variation. Its three digital DIV inputs (DIVA/DIVB/DIVC) configure binary division ratios from 1 to 128, enabling eight discrete output frequencies without external components.
It features dual V+ pins (1 and 8) and dual GND pins (2 and 6) to isolate oscillator core power from output driver paths, reducing deterministic jitter under capacitive loading up to 50pF. The exposed pad (Pin 9) must be soldered to ground for thermal and electrical integrity in the 2mm × 3mm DFN package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Master Frequency | 8.000000MHz - fixed factory-programmed oscillator core enabling precise division to 8 output frequencies |
| Frequency Accuracy | ±0.1% max over 0°C to 70°C - ensures timing compliance in industrial-grade microcontroller clocking |
| Start-Up Time | <110µs - enables rapid wake-up in duty-cycled battery-powered devices without clock instability |
| Supply Current | 490µA typ at 8MHz/3V - supports >1-year operation on coin-cell batteries in low-duty-cycle sensing nodes |
| RMS Period Jitter | 0.8nsP-P at 8MHz - meets setup/hold margin requirements for 12-bit ADC sampling clocks |
| Supply Voltage Range | 1.7V to 5.5V - allows direct operation from single Li-ion, two AA alkaline, or regulated 3.3V/5V rails |
| Output Drive | 40Ω series resistance - provides clean edge control into 5pF loads without external termination |
Pinout & Package
Package: 8-lead (2mm × 3mm) Plastic DFN (DCB), with exposed thermal pad (Pin 9) requiring solder connection to PCB ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ (Pins 1, 8) | Positive Supply Input | Dual supply pins reduce supply impedance and isolate oscillator core from output switching noise |
| GND (Pins 2, 6) | Ground Reference | Dual ground pins provide low-inductance return path; both must connect to same ground plane and exposed pad |
| DIVA, DIVB, DIVC (Pins 3, 4, 5) | Frequency Division Control | CMOS logic inputs (VIH = 1.4V min, VIL = 0.7V max) selecting divide ratio 1–128 per Table 1 |
| OUT (Pin 7) | CMOS Clock Output | Push-pull driver with 40Ω series resistance; holds low during start-up; glitch-free on DIV changes |
| Exposed Pad (Pin 9) | Thermal & Electrical Ground | Must be soldered to PCB ground plane for thermal dissipation (θJA = 64°C/W) and signal integrity |
Key Features
| Feature | Design Value |
|---|---|
| No external timing components required | Reduces BOM count and layout area; eliminates crystal load capacitor tuning and aging drift |
| Ultralow power with fast start-up | Enables burst-mode operation in energy-harvesting sensors where clock must activate within 110µs |
| Dual supply/ground pin architecture | Minimizes supply-induced jitter by separating oscillator core and output driver current paths |
| Factory-trimmed frequency stability | Eliminates post-assembly calibration; achieves <0.09% initial error without trimming circuitry |
| Glitch-free DIV pin switching | Ensures deterministic timing transitions-no runt pulses or metastability when changing output frequency |
Applications
| Microprocessor Clock | Power Supply Sequencing |
|---|---|
Use Scenario: Providing main system clock to ARM Cortex-M0+ MCU in portable medical monitor operating from 3.3V rail. IC Role / Device Role / Timing Role: Primary clock generator delivering stable 8MHz clock with <110µs start-up after wake-from-sleep. Use Value: Enables full MCU operation within 110µs of power restoration, meeting ISO 13485 real-time response requirements. | Use Scenario: Synchronizing enable sequencing of triple-output DC/DC converter in industrial PLC. IC Role / Device Role / Timing Role: Precision timing reference for FPGA-based sequencer controlling 12V/5V/3.3V rail turn-on delays. Use Value: Guarantees ±0.1% timing accuracy across –40°C to 70°C, preventing rail-interlock faults during cold-start. |
| Portable Data Logger | Battery-Powered Sensor Node |
Use Scenario: Driving sample clock for 16-bit SAR ADC in environmental data logger powered by two AA cells. IC Role / Device Role / Timing Role: Low-noise 1MHz clock source derived from 8MHz master via ÷8 division (DIV = 011). Use Value: 0.8nsP-P jitter preserves ENOB in 100ksps sampling; 490µA current extends battery life beyond 2 years. | Use Scenario: Generating wake-up timer clock for ultra-low-power BLE sensor node using CR2032 coin cell. IC Role / Device Role / Timing Role: 32.768kHz sleep clock (÷256 mode) with <110µs start-up to service RTC interrupt. Use Value: 105µA typical current at 32kHz/3V enables >5-year shelf life; no crystal aging drift affects long-term timestamp accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled oscillator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SiT1533AI-H4-33E-32.768E | 32.768kHz MEMS oscillator only; no programmable division; ±20ppm initial accuracy | Fixed-frequency RTC use only; lacks multi-frequency flexibility of LTC6930CDCB-8.00#TRPBF | Select when only 32.768kHz is needed and MEMS reliability is prioritized over programmability |
| MAX7375EKA+T | 8MHz crystal oscillator with integrated LDO; 1.8V–5.5V input; ±50ppm accuracy; no DIV pins | Requires external crystal; higher power (1.2mA); no frequency reconfiguration in-system | Select when crystal-based stability is mandated and board space allows crystal + oscillator IC |
Compared with SiT1533AI-H4-33E-32.768E and MAX7375EKA+T, the LTC6930CDCB-8.00#TRPBF uniquely combines factory-trimmed 8MHz precision, software-selectable division, sub-110µs start-up, and single-supply operation in a 2mm × 3mm DFN-enabling compact, flexible, and ultra-low-power clock generation without crystals or trimming.
Availability
LTC6930CDCB-8.00#TRPBF is available at Aetrix Electronics and suitable for battery-powered medical monitors, industrial PLC timing modules, and portable environmental data loggers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC6930CDCB-8.00#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 acquired Linear Technology in 2017 and maintains its high-performance analog and mixed-signal product lines.
The LTC6930 series belongs to Linear's precision timing portfolio, designed specifically for replacing quartz crystals and oscillators in space-constrained, battery-sensitive applications where programmability, fast start-up, and supply insensitivity are critical.
FAQ
What is the maximum output frequency achievable with LTC6930CDCB-8.00#TRPBF?
The LTC6930CDCB-8.00#TRPBF has a factory-set master oscillator frequency of 8.000000MHz. When configured with DIVA=DIVB=DIVC=0 (÷1 division), it delivers exactly 8.000000MHz at the OUT pin. This is the highest frequency available from this specific variant, as confirmed in Table 1 of the datasheet and supported by AC Electrical Characteristics showing 8MHz performance metrics.
Does LTC6930CDCB-8.00#TRPBF require external load capacitors like quartz crystals?
No, the LTC6930CDCB-8.00#TRPBF is a fully integrated silicon oscillator and requires no external load capacitors. Only 0.1µF ceramic bypass capacitors between each V+ pin and its adjacent GND pin are needed, as specified in the recommended layout. Unlike quartz-based solutions, it eliminates load capacitance tuning, aging drift, and board-level sensitivity to stray capacitance.
Can LTC6930CDCB-8.00#TRPBF operate from a single 1.8V supply?
Yes, the LTC6930CDCB-8.00#TRPBF supports supply voltages from 1.7V to 5.5V. At 1.8V, it delivers 8MHz output with typical supply current of 321µA (min) to 520µA (max) depending on DIV setting, as documented in the DC Electrical Characteristics table. Its internal regulation ensures stable frequency performance across this full range.
How is the exposed pad (Pin 9) of LTC6930CDCB-8.00#TRPBF used in PCB layout?
The exposed pad (Pin 9) of the LTC6930CDCB-8.00#TRPBF must be soldered directly to a PCB ground plane. It serves dual functions: thermal dissipation (reducing θJA to 64°C/W) and electrical grounding for noise suppression. The datasheet explicitly states "EXPOSED PAD (PIN 9) MUST BE SOLDERED TO GND", and failure to do so risks thermal overload and increased jitter.
What is the guaranteed frequency accuracy of LTC6930CDCB-8.00#TRPBF over its operating temperature range?
The LTC6930CDCB-8.00#TRPBF is rated for 0°C to 70°C operation (C-grade). Its frequency accuracy is guaranteed at ±0.1% over this full range, as stated in the AC Electrical Characteristics table under "Frequency Accuracy (Note 4)" for LTC6930C. This specification applies across the entire 1.7V–5.5V supply range and all DIV settings with CLOAD = 5pF.
LTC6930CDCB-8.00#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Oscillator, Silicon
- Count:
- -
- Frequency:
- 8MHz
- Voltage - Supply:
- 1.7V ~ 5.5V
- Current - Supply:
- 926 µA
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 8-DFN (2x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC6930CDCB-8.00#TRPBF FAQ
1.How can I place an order for LTC6930CDCB-8.00#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6930CDCB-8.00#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 LTC6930CDCB-8.00#TRPBF reliable?
The price and inventory of LTC6930CDCB-8.00#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6930CDCB-8.00#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6930CDCB-8.00#TRPBF?
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4.How is shipping managed for LTC6930CDCB-8.00#TRPBF?
LTC6930CDCB-8.00#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6930CDCB-8.00#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 LTC6930CDCB-8.00#TRPBF?
For technical support, including LTC6930CDCB-8.00#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6930CDCB-8.00#TRPBF requirements.
6.How does Aetrix verify that LTC6930CDCB-8.00#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6930CDCB-8.00#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 LTC6930CDCB-8.00#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6930CDCB-8.00#TRPBF?
All LTC6930CDCB-8.00#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6930CDCB-8.00#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 LTC6930CDCB-8.00#TRPBF part is unused and in its original packaging.
Return procedure for LTC6930CDCB-8.00#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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