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Analog Devices Inc. LTC6930IDCB-4.19#TRPBF
- Part No.:
- LTC6930IDCB-4.19#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Programmable Timers and Oscillators
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC6930IDCB-4.19#TRPBF.pdf
- Description:
- IC OSC SILICON 4.194304MHZ 8-DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,878
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Product details
Overview
LTC6930IDCB-4.19#TRPBF from Analog Devices (formerly Linear Technology) is a digitally controlled, precision silicon oscillator delivering 4.194304MHz output with ≤±0.1% frequency accuracy over –40°C to +85°C, 1.7V–5.5V supply, and <110µs start-up time. It uses internal binary dividers (1–128) to generate eight selectable frequencies from its factory-programmed master oscillator and requires no external timing components - ideal for microprocessor clocking in portable instrumentation.
For engineers reviewing the LTC6930IDCB-4.19#TRPBF datasheet, LTC6930IDCB-4.19#TRPBF pinout, LTC6930IDCB-4.19#TRPBF application, or LTC6930IDCB-4.19#TRPBF equivalent, key selection criteria include guaranteed ±0.1% initial accuracy at industrial temperature range, ultralow 105µA typical supply current at 32kHz, RMS period jitter <0.15% at 3V, and DFN-8 (2mm × 3mm) package compatibility with high-density PCB layouts.
Technical Context
The LTC6930IDCB-4.19#TRPBF implements a proprietary switched-capacitor feedback loop to stabilize its factory-set 4.194304MHz master oscillator across voltage and temperature extremes. Its digital control architecture enables precise division by powers of two (N = 1, 2, 4, ..., 128) via three CMOS logic inputs (DIVA/DIVB/DIVC), yielding outputs from 32.768kHz to 4.194304MHz without external components.
It features dual V+ pins (1 and 8) and dual GND pins (2 and 6) to isolate power delivery from the output driver stage, minimizing deterministic jitter under capacitive loading up to 50pF. The exposed thermal pad (Pin 9) must be soldered to ground for thermal management and electrical stability in the DFN-8 package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency | 4.194304MHz nominal; programmable down to 32.768kHz via 3-bit DIV input (N=1–128) |
| Frequency Accuracy | ±0.1% max over –40°C to +85°C, 1.7V–5.5V supply - ensures reliable timing in industrial environments |
| Supply Current | 105µA typical at 32.768kHz / 3V; 490µA typical at 4.194304MHz / 3V - enables multi-year battery life |
| Start-Up Time | <110µs to first valid output cycle after V+ exceeds 1.7V - supports rapid wake-from-sleep operation |
| RMS Period Jitter | <0.15% at 3V (≈180ps RMS for 4.194304MHz) - meets low-jitter requirements for ADC sampling clocks |
| Operating Voltage | 1.7V to 5.5V single supply - compatible with Li-ion, 2xAA, or 3.3V/5V system rails |
| Package | 8-lead DFN (2mm × 3mm) with exposed thermal pad - supports compact, thermally robust layouts |
Pinout & Package
Package: 8-lead plastic DFN (2mm × 3mm), exposed thermal pad (Pin 9) required to be soldered to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ (Pins 1, 8) | Positive supply input | Dual supply pins reduce supply impedance; each must be bypassed locally with 0.1µF ceramic capacitor to adjacent GND |
| GND (Pins 2, 6) | Ground reference | Dual ground pins minimize ground bounce; both must connect to low-inductance ground plane and to exposed pad (Pin 9) |
| DIVA, DIVB, DIVC (Pins 3, 4, 5) | Binary divider select inputs | CMOS logic inputs (VIH ≥1.25V, VIL ≤1.25V); set N = 1–128 per Table 1 to derive output frequency from 4.194304MHz master |
| OUT (Pin 7) | CMOS oscillator output | Low-impedance (40Ω typ at 3V), rail-to-rail output; drives ≤50pF or 1kΩ load; held low during start-up to prevent glitches |
| Exposed Pad (Pin 9) | Thermal and electrical ground | Must be soldered to PCB ground plane for thermal dissipation and signal integrity - not optional |
Key Features
| Feature | Design Value |
|---|---|
| Digitally programmable frequency | Eight discrete output frequencies (32.768kHz–4.194304MHz) selected via 3-pin binary code - eliminates crystal inventory and layout changes |
| Ultralow power consumption | 105µA typical at 32kHz / 3V enables >10-year battery life in metering and sensor nodes |
| Fast, glitch-free start-up | <110µs start-up with output held low until stable - critical for duty-cycled IoT edge devices |
| High-accuracy over temperature | ±0.1% max frequency error from –40°C to +85°C - replaces TCXOs in cost-sensitive industrial applications |
| No external components required | Self-contained oscillator core with integrated regulator and divider - reduces BOM count and board area |
Applications
| Microprocessor Clock Source | Portable Medical Instrumentation |
|---|---|
Use Scenario: Providing main system clock for ARM Cortex-M0+ MCU in handheld blood glucose monitor operating on coin-cell battery. IC Role / Device Role / Timing Role: Primary clock generator replacing quartz crystal and load capacitors; supplies 4.194304MHz to MCU PLL input. Use Value: Enables 10+ year battery life due to 105µA typical supply current at 32kHz sleep mode and sub-110µs wake-up latency. |
Use Scenario: Timing reference for ECG analog front-end sampling in wearable cardiac monitor. IC Role / Device Role / Timing Role: Low-jitter clock source for 16-bit SAR ADC; configured at 4.194304MHz ÷ 128 = 32.768kHz for precise sample rate control. Use Value: RMS period jitter <0.15% ensures <1 LSB timing error in 16-bit conversion, meeting IEC 60601-2-47 clinical accuracy requirements. |
| Industrial Sensor Node Timing | Smart Utility Meter Real-Time Clock |
Use Scenario: Synchronizing data acquisition and wireless transmission in LoRaWAN-based environmental sensor node deployed in unheated outdoor enclosures. IC Role / Device Role / Timing Role: Temperature-stable clock source for MCU timer peripherals and RF transceiver sleep/wake scheduling. Use Value: ±0.1% frequency accuracy over –40°C to +85°C eliminates calibration drift in field-deployed units, reducing maintenance cycles. |
Use Scenario: Driving RTC subsystem and metrology ASIC in Class 0.5 electricity meter requiring long-term timekeeping accuracy. IC Role / Device Role / Timing Role: Factory-programmed 32.768kHz output (DIV = 128) serving as primary timebase for real-time calendar and energy integration. Use Value: Long-term drift of 30ppm/√kHr yields <0.02% cumulative error over 10 years - surpasses ANSI C12.1 timekeeping specifications. |
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 fixed-output MEMS oscillator; ±10ppm (±0.001%) initial accuracy; 1.62–3.63V supply | Fixed-frequency only; no DIV pin control; optimized for ultra-low-power RTC use, not general-purpose MCU clocking | Select when absolute lowest power (60nA typical) and highest initial accuracy are prioritized over frequency flexibility |
| MAX7375EKA+T | 32.768kHz–2MHz programmable oscillator; ±50ppm (±0.005%) accuracy over –40°C to +85°C; 1.7–3.6V supply | Lower accuracy than LTC6930IDCB-4.19#TRPBF; no support for 4.194304MHz base frequency or 8.192MHz family variants | Select when cost sensitivity outweighs need for ±0.1% accuracy and full 4.194304MHz base frequency compatibility |
Compared with SiT1533AI-H4-33E-32.768E and MAX7375EKA+T, the LTC6930IDCB-4.19#TRPBF uniquely delivers factory-trimmed 4.194304MHz base frequency with ±0.1% accuracy, full 32.768kHz–4.194304MHz programmability via DIV pins, and proven performance in mixed-signal industrial systems requiring both precision and flexibility.
Availability
LTC6930IDCB-4.19#TRPBF is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical devices, and smart utility meters requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for LTC6930IDCB-4.19#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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and control.
The LTC6930 series was designed as a precision, low-power silicon replacement for quartz oscillators in space-constrained, battery-operated, and industrial-grade applications demanding guaranteed accuracy over wide temperature and supply ranges.
FAQ
What is the nominal output frequency of the LTC6930IDCB-4.19#TRPBF?
The LTC6930IDCB-4.19#TRPBF has a factory-programmed master oscillator frequency of 4.194304MHz. Its output frequency is determined by dividing this value by N = 1, 2, 4, 8, 16, 32, 64, or 128 using the DIVA/DIVB/DIVC pins. When all DIV pins are low (000), the output is exactly 4.194304MHz. This base frequency is specifically chosen to support standard microcontroller clock trees and audio sampling rates.
Does the LTC6930IDCB-4.19#TRPBF require external load capacitors like quartz crystals?
No, the LTC6930IDCB-4.19#TRPBF is a fully integrated silicon oscillator and requires no external load capacitors or tuning components. Only 0.1µF ceramic bypass capacitors between each V+ pin (1 and 8) and its adjacent GND pin (2 and 6) are needed for stable operation. This eliminates crystal matching uncertainty and PCB layout sensitivity inherent in traditional crystal-based solutions.
What is the maximum capacitive load the LTC6930IDCB-4.19#TRPBF can drive reliably?
The LTC6930IDCB-4.19#TRPBF is specified to drive up to 50pF capacitive load or 1kΩ resistive load while maintaining guaranteed timing performance. Its output driver has a typical series resistance of 40Ω at 3V, enabling clean signal integrity even under moderate loading. For loads exceeding 50pF, external buffering is recommended to avoid increased supply current and potential jitter degradation.
How does the LTC6930IDCB-4.19#TRPBF achieve ±0.1% frequency accuracy over temperature?
The LTC6930IDCB-4.19#TRPBF achieves ±0.1% frequency accuracy over –40°C to +85°C through a proprietary switched-capacitor feedback loop that actively stabilizes its internal master oscillator against temperature-induced drift. Combined with internal supply regulation to minimize voltage sensitivity (0.07%/V), this architecture delivers industry-leading stability without external compensation components.
Can the DIV pins of the LTC6930IDCB-4.19#TRPBF be changed dynamically during operation?
Yes, the DIVA, DIVB, and DIVC pins of the LTC6930IDCB-4.19#TRPBF can be reconfigured dynamically during operation. The device responds to new DIV settings within one output clock cycle and produces no glitches, runt pulses, or invalid frequencies during transitions - enabling adaptive clock scaling in power-managed systems without requiring reset or reinitialization.
LTC6930IDCB-4.19#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:
- 4.194304MHz
- Voltage - Supply:
- 1.7V ~ 5.5V
- Current - Supply:
- 490 µA
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 8-DFN (2x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC6930IDCB-4.19#TRPBF FAQ
1.How can I place an order for LTC6930IDCB-4.19#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6930IDCB-4.19#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 LTC6930IDCB-4.19#TRPBF reliable?
The price and inventory of LTC6930IDCB-4.19#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6930IDCB-4.19#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6930IDCB-4.19#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6930IDCB-4.19#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6930IDCB-4.19#TRPBF?
LTC6930IDCB-4.19#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6930IDCB-4.19#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 LTC6930IDCB-4.19#TRPBF?
For technical support, including LTC6930IDCB-4.19#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6930IDCB-4.19#TRPBF requirements.
6.How does Aetrix verify that LTC6930IDCB-4.19#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6930IDCB-4.19#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 LTC6930IDCB-4.19#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6930IDCB-4.19#TRPBF?
All LTC6930IDCB-4.19#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6930IDCB-4.19#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 LTC6930IDCB-4.19#TRPBF part is unused and in its original packaging.
Return procedure for LTC6930IDCB-4.19#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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