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Analog Devices Inc. LTC6930CDCB-8.19#TRMPBF
- Part No.:
- LTC6930CDCB-8.19#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Programmable Timers and Oscillators
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC6930CDCB-8.19#TRMPBF.pdf
- Description:
- IC OSC SILICON 8.192MHZ 8-DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,954
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Product details
Overview
LTC6930CDCB-8.19#TRMPBF from Analog Devices (formerly Linear Technology) is a digitally controlled silicon oscillator delivering factory-programmed 8.192MHz master frequency with user-selectable divide-by-1 to 128 outputs (64kHz to 8.192MHz), ±0.1% frequency accuracy over 0°C to 70°C, 105µA typical supply current at 32kHz/3V, and <110µs power-on delay. It serves as a low-power timing source in battery-operated microcontroller systems.
For engineers reviewing the LTC6930CDCB-8.19#TRMPBF datasheet, LTC6930CDCB-8.19#TRMPBF pinout, LTC6930CDCB-8.19#TRMPBF application, or LTC6930CDCB-8.19#TRMPBF equivalent, key selection criteria include guaranteed initial accuracy (±0.09% typ), RMS period jitter <0.8ns at 8.192MHz, DCB package thermal performance (θJA = 64°C/W), and DIV pin logic compatibility with 1.25V VIH threshold.
Technical Context
The LTC6930CDCB-8.19#TRMPBF integrates a proprietary switched-capacitor-controlled master oscillator (factory-set to 8.192MHz) and a binary divider chain (N = 1–128) controlled by three CMOS digital inputs (DIVA/DIVB/DIVC). Its internal voltage regulation minimizes supply-induced frequency drift (0.07%/V).
Operation requires only 0.1µF bypass capacitors per V+ pin, supports 1.7V–5.5V single-supply operation, and holds OUT low during start-up to prevent glitches. The DFN package features an exposed pad soldered to GND for thermal and electrical integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency Range | 64kHz to 8.192MHz (via DIV pins selecting ÷1 to ÷128 of 8.192MHz master) |
| Initial Frequency Accuracy | ±0.09% max at 25°C - ensures precise clocking without external calibration |
| Supply Current | 190µA typical at 8.192MHz/3V - enables multi-year battery life in low-duty-cycle systems |
| RMS Period Jitter | 0.8ns at 8.192MHz/3V - meets timing margin requirements for MCU peripherals |
| Start-Up Time | <110µs - supports rapid wake-from-sleep in energy-harvesting nodes |
| Operating Temperature | 0°C to 70°C (C-grade) - validated for commercial embedded applications |
| Supply Voltage Range | 1.7V to 5.5V - compatible with single Li-ion or dual AA alkaline cells |
Pinout & Package
Package: 8-lead (2mm × 3mm) plastic DFN (DCB) with exposed pad (Pin 9) requiring solder connection to GND. Thermal resistance θJA = 64°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ (Pins 1, 8) | Positive supply input | Each must be bypassed with 0.1µF ceramic capacitor to adjacent GND; both pins connected externally |
| GND (Pins 2, 6) | Ground reference | Low-inductance connection to PCB ground plane; internally tied to exposed pad (Pin 9) |
| DIVA, DIVB, DIVC (Pins 3, 4, 5) | Frequency divider control inputs | CMOS logic inputs (VIH = 1.25V min); set binary divider ratio (1–128) per Table 1 |
| OUT (Pin 7) | CMOS clock output | 40Ω series resistance; drives ≤50pF load; held low during start-up; glitch-free on DIV changes |
Key Features
| Feature | Design Value |
|---|---|
| No external timing components required | Reduces BOM count and layout area; eliminates crystal matching and load capacitor tuning |
| Ultralow power consumption | 105µA typical at 32kHz/3V enables decade-scale coin-cell operation in RTC subsystems |
| Digital frequency selection | Three-pin binary interface allows runtime reconfiguration without firmware update or hardware change |
| Factory-trimmed accuracy | ±0.09% initial error eliminates need for system-level frequency calibration routines |
| Robust start-up behavior | Output held low for <110µs prevents invalid clock edges that could corrupt MCU state machines |
Applications
| Microprocessor Clock Source | Portable Medical Sensor Node |
|---|---|
Use Scenario: Providing main system clock to ARM Cortex-M0+ MCU in handheld diagnostic device. IC Role / Device Role / Timing Role: Primary clock generator replacing quartz crystal + load capacitors. Use Value: Eliminates crystal aging drift and board-space overhead while maintaining ±0.1% timing accuracy across temperature. | Use Scenario: Synchronizing ADC sampling and BLE radio wakeup in wearable ECG patch. IC Role / Device Role / Timing Role: Low-power timing reference enabling duty-cycled operation. Use Value: 190µA supply current at 8.192MHz extends 200mAh coin cell life beyond 3 years at 1% duty cycle. |
| Industrial PLC I/O Module | Smart Energy Meter Real-Time Clock |
Use Scenario: Generating precise 1MHz clock for isolated SPI interface between MCU and analog front-end ASIC. IC Role / Device Role / Timing Role: Deterministic jitter-controlled clock source for high-speed serial communication. Use Value: 0.8ns RMS period jitter ensures setup/hold margins are met under 125°C ambient conditions. | Use Scenario: Driving RTC peripheral in utility meter operating from supercapacitor backup. IC Role / Device Role / Timing Role: 32.768kHz output mode (÷256) for calendar/timekeeping function. Use Value: 105µA current at 32kHz/3V reduces backup power drain below 1µW, extending hold-up time. |
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-frequency MEMS oscillator; ±20ppm stability; no digital divider | Only supports 32.768kHz; lacks programmable output scaling | Select when fixed RTC frequency suffices and MEMS reliability is prioritized over flexibility |
| MCP1501-300E/SN | 3.0V precision voltage reference IC; not a clock source | Provides stable reference voltage, not timing signal | Not functionally equivalent; use only for analog reference needs, not clock generation |
Compared with SiT1533AI-H4-33E-32.768E and MCP1501-300E/SN, the LTC6930CDCB-8.19#TRMPBF uniquely delivers factory-programmed 8.192MHz with on-the-fly digital division to eight discrete frequencies, enabling one BOM item to serve multiple clock domains in resource-constrained designs.
Availability
LTC6930CDCB-8.19#TRMPBF is available at Aetrix Electronics and suitable for portable medical devices, industrial PLC modules, smart energy meters, and battery-powered IoT edge nodes requiring stable component supply with guaranteed long-term availability.
Supply support for LTC6930CDCB-8.19#TRMPBF 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 precision analog and timing product lines with full technical documentation and long-term support.
The LTC6930CDCB-8.19#TRMPBF belongs to the LTC6930 family of micropower silicon oscillators designed for battery-operated systems where crystal replacement, low quiescent current, and guaranteed accuracy across voltage/temperature are critical.
FAQ
What is the nominal master oscillator frequency of the LTC6930CDCB-8.19#TRMPBF?
The LTC6930CDCB-8.19#TRMPBF has a factory-programmed master oscillator frequency of exactly 8.192000MHz. This value is used as the base for all internal division ratios (÷1 to ÷128), yielding output frequencies from 64kHz to 8.192MHz as defined in Table 1 of the datasheet. The "8.19" suffix in the part number directly references this master frequency.
Can the LTC6930CDCB-8.19#TRMPBF operate from a single 1.8V supply?
Yes, the LTC6930CDCB-8.19#TRMPBF supports supply voltages from 1.7V to 5.5V. At 1.8V, it delivers full functionality including all eight output frequencies, with supply current scaling accordingly (e.g., ~150µA at 8.192MHz). Performance specifications such as frequency accuracy (±0.1% over temperature) and jitter remain valid across the entire supply range.
How is the output frequency selected on the LTC6930CDCB-8.19#TRMPBF?
The output frequency is selected using three digital control pins: DIVA (Pin 3), DIVB (Pin 4), and DIVC (Pin 5). These pins form a 3-bit binary code (e.g., [000] = ÷1 = 8.192MHz; [111] = ÷128 = 64kHz) per Table 1. Logic thresholds are CMOS-compatible (VIH ≥ 1.25V, VIL ≤ 1.25V), allowing direct connection to MCU GPIOs without level-shifting.
Does the LTC6930CDCB-8.19#TRMPBF require external load capacitors like quartz crystals?
No, the LTC6930CDCB-8.19#TRMPBF is a fully integrated silicon oscillator and requires no external load capacitors. Only 0.1µF ceramic bypass capacitors per V+ pin (Pins 1 and 8) are needed for power supply decoupling. This eliminates crystal matching tolerances, PCB layout sensitivity, and aging-related frequency drift inherent in quartz-based solutions.
What is the thermal design requirement for the exposed pad on the LTC6930CDCB-8.19#TRMPBF DFN package?
Pin 9 (exposed pad) of the LTC6930CDCB-8.19#TRMPBF must be soldered to a PCB copper plane connected to GND. This provides both thermal dissipation (θJA = 64°C/W) and electrical grounding for noise reduction. Failure to solder the pad degrades thermal performance and may cause frequency instability due to elevated junction temperature.
LTC6930CDCB-8.19#TRMPBF 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:
- 8.192MHz
- Voltage - Supply:
- 1.7V ~ 5.5V
- Current - Supply:
- 880 µA
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 8-DFN (2x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC6930CDCB-8.19#TRMPBF FAQ
1.How can I place an order for LTC6930CDCB-8.19#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6930CDCB-8.19#TRMPBF 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-8.19#TRMPBF reliable?
The price and inventory of LTC6930CDCB-8.19#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6930CDCB-8.19#TRMPBF is usually 5 days.
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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-8.19#TRMPBF?
For technical support, including LTC6930CDCB-8.19#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6930CDCB-8.19#TRMPBF requirements.
6.How does Aetrix verify that LTC6930CDCB-8.19#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC6930CDCB-8.19#TRMPBF 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-8.19#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC6930CDCB-8.19#TRMPBF?
All LTC6930CDCB-8.19#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6930CDCB-8.19#TRMPBF, 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-8.19#TRMPBF part is unused and in its original packaging.
Return procedure for LTC6930CDCB-8.19#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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