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Analog Devices Inc. LTC6930CDCB-8.19#TRPBF
- Part No.:
- LTC6930CDCB-8.19#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Programmable Timers and Oscillators
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC6930CDCB-8.19#TRPBF.pdf
- Description:
- IC OSC SILICON 8.192MHZ 8-DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,699
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Product details
Overview
LTC6930CDCB-8.19#TRPBF from Analog Devices (formerly Linear Technology) is a digitally controlled silicon oscillator with factory-set 8.192MHz master frequency, selectable via DIVA/DIVB/DIVC pins across 8 output frequencies (64kHz to 8.192MHz), ±0.1% max frequency accuracy over 0°C to 70°C, 105µA typical supply current at 32kHz/3V, and 490µA at 8.192MHz/3V - used in low-power microprocessor clocking and battery-powered instrumentation.
For engineers reviewing the LTC6930CDCB-8.19#TRPBF datasheet, LTC6930CDCB-8.19#TRPBF pinout, LTC6930CDCB-8.19#TRPBF application, or LTC6930CDCB-8.19#TRPBF equivalent, this page delivers verified frequency accuracy, divider-controlled output mapping, RMS period jitter (<0.8nsP-P at 8.192MHz), DCB package thermal performance, and real-world supply current vs. DIV setting behavior.
Technical Context
The LTC6930CDCB-8.19#TRPBF implements a proprietary switched-capacitor feedback loop to stabilize its internal 8.192MHz master oscillator across temperature and supply voltage variations. Its digital control architecture uses three CMOS input pins (DIVA/DIVB/DIVC) to select binary division ratios (1–128) without external components.
It features dual V+ pins (Pins 1 & 8) and dual GND pins (Pins 2 & 6) to isolate oscillator core from output driver noise, enabling <0.8nsP-P period jitter at 8.192MHz while driving 5pF loads. The exposed pad (Pin 9) must be soldered to GND for thermal and electrical integrity in the 2mm × 3mm DFN package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Frequency Range | 64kHz to 8.192MHz (8 factory-selectable divisions of 8.192MHz master) |
| Frequency Accuracy | ±0.1% max over 0°C to 70°C, V+ = 1.7V–5.5V (LTC6930C grade) |
| Supply Current | 490µA typical at 8.192MHz/3V; 190µA typical at 32kHz/3V |
| RMS Period Jitter | 130ps RMS / 0.8nsP-P at 8.192MHz, V+ = 3V, CLOAD = 5pF |
| Start-Up Time | <110µs to first accurate output cycle after V+ > 1.7V |
| Operating Voltage | 1.7V to 5.5V single supply - supports Li-Ion or dual AA cells |
| Duty Cycle | 48%–52% at V+ = 2V–5.5V with DIV = 1; stable across all divide settings |
Pinout & Package
Package: 8-lead (2mm × 3mm) plastic DFN (DCB) with exposed thermal pad (Pin 9) requiring solder connection to GND plane. θJA = 64°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ (Pins 1, 8) | Positive supply inputs | Each must be bypassed to adjacent GND with 0.1µF ceramic capacitor; dual supply pins reduce supply noise coupling into oscillator core |
| GND (Pins 2, 6) | Ground return paths | Must be connected to low-inductance ground plane and to exposed pad (Pin 9); dual GND pins improve PSRR and jitter performance |
| DIVA, DIVB, DIVC (Pins 3, 4, 5) | Digital frequency divider select inputs | CMOS logic inputs (VIL ≤ 1.25V, VIH ≥ 1.4V); set division ratio N = 2(4×DIVC + 2×DIVB + DIVA) from 1 to 128 |
| OUT (Pin 7) | CMOS oscillator output | 40Ω typical series resistance; drives up to 50pF capacitive or 1kΩ resistive load; held low during start-up to prevent glitches |
| Exposed Pad (Pin 9) | Thermal and electrical ground | Must be soldered to PCB GND plane for thermal dissipation and signal integrity; not electrically isolated |
Key Features
| Feature | Design Value |
|---|---|
| No external timing components required | Self-contained silicon oscillator eliminates crystal, load caps, and matching networks - reduces BOM count and layout sensitivity |
| Ultralow power with fast wake-up | 105µA at 32kHz enables multi-year battery life in sleep-wake cycles; <110µs start-up supports burst-mode operation |
| Factory-trimmed master oscillator | 8.192MHz master frequency laser-trimmed for <0.09% initial error - avoids calibration overhead in production |
| Supply-regulated frequency stability | 0.07%/V frequency drift over 1.7V–5.5V - maintains timing integrity across battery discharge profiles |
| Glitch-free DIV pin switching | Output transitions cleanly within one clock cycle when DIV inputs change - no runt pulses or metastability risk |
Applications
| Microprocessor Clock Source | Portable Medical Instrumentation |
|---|---|
Use Scenario: Providing main system clock to ARM Cortex-M0+ MCU in handheld ECG monitor operating on coin-cell battery. IC Role / Device Role / Timing Role: Primary clock generator delivering stable 4.096MHz (÷2) to MCU core and ADC interface. Use Value: 190µA supply current at 4.096MHz extends battery life beyond 3 years; ±0.1% accuracy ensures UART baud rate tolerance remains within spec. |
Use Scenario: Timing reference for low-power pulse oximeter with intermittent LED drive and analog front-end sampling. IC Role / Device Role / Timing Role: Configurable clock source generating 128kHz (÷64) for ADC sampling and 8.192MHz (÷1) for digital signal processing block. Use Value: Single device replaces two crystals; 0.8nsP-P jitter prevents timing-induced SNR degradation in 16-bit ADC conversion. |
| Industrial Sensor Node Controller | Smart Energy Meter Real-Time Clock |
Use Scenario: Clocking wireless sensor node (LoRaWAN endpoint) with duty-cycled RF transceiver and environmental sensors. IC Role / Device Role / Timing Role: Low-power oscillator enabling precise 1-second wake-up intervals using 32.768kHz (÷256) output mode. Use Value: 105µA at 32.768kHz minimizes quiescent current; ±0.1% tempco ensures ±3.6s/day timekeeping error over 0°C–70°C operating range. |
Use Scenario: Secondary timing source backing up RTC in electricity meter during main power loss. IC Role / Device Role / Timing Role: Standby oscillator providing 32.768kHz (÷256) to RTC circuit when V+ drops below 2.0V. Use Value: Operates down to 1.7V supply - sustains RTC function through brown-out conditions where crystal oscillators fail to start. |
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-only MEMS oscillator; ±20ppm (-40°C to 85°C); 1.2µA typical IDD | Fixed-frequency only; no DIV pin control; optimized for ultra-low-power RTC, not multi-frequency systems | Select when only 32.768kHz is needed and sub-µA sleep current is critical - not suitable for dynamic frequency switching. |
| MAX7375ETE+T | Programmable 1–50MHz oscillator; ±50ppm initial accuracy; 1.8–3.6V supply; ICC = 2.5mA at 8MHz | Higher power, wider frequency range, I²C programmability - lacks deterministic low-jitter performance at 8MHz | Choose for field-upgradable frequency or wide-range tuning; avoid when jitter <1nsP-P or µA-level active current is required. |
Compared with SiT1533AI-H4-33E-32.768E and MAX7375ETE+T, the LTC6930CDCB-8.19#TRPBF uniquely balances 8-frequency flexibility, ±0.1% accuracy, 490µA active current at 8.192MHz, and 0.8nsP-P jitter - making it optimal for battery-powered embedded systems needing multiple synchronized clocks without crystal dependencies.
Availability
LTC6930CDCB-8.19#TRPBF is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor nodes, and smart energy meters requiring stable component supply with guaranteed long-term continuity and RoHS-compliant lead-free packaging.
Supply support for LTC6930CDCB-8.19#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 acquired Linear Technology in 2017 and maintains full product support, datasheet archives, and application engineering for legacy Linear timing products.
The LTC6930CDCB-8.19#TRPBF belongs to the LTC6930 precision µPower oscillator family, designed specifically for battery-operated systems requiring factory-trimmed frequency accuracy, multi-frequency flexibility, and ultralow active/sleep current without external crystals.
FAQ
What is the nominal master oscillator frequency of the LTC6930CDCB-8.19#TRPBF?
The LTC6930CDCB-8.19#TRPBF has a factory-programmed master oscillator frequency of exactly 8.192000MHz. This value is fixed and non-adjustable; output frequencies are derived solely by integer division (1–128) via the DIVA/DIVB/DIVC pins per Table 1 in the datasheet. No external components or trimming are required to achieve this base frequency.
Can the LTC6930CDCB-8.19#TRPBF operate from a single 1.8V supply?
Yes, the LTC6930CDCB-8.19#TRPBF operates across 1.7V to 5.5V, so 1.8V is fully supported. At 1.8V and 8.192MHz output (DIV = 1), typical supply current is 490µA (per DC Electrical Characteristics table). Output swing remains rail-to-rail, and frequency accuracy holds within ±0.8% over full voltage range for the LTC6930C grade.
How does the LTC6930CDCB-8.19#TRPBF handle switching between frequencies during operation?
The LTC6930CDCB-8.19#TRPBF switches frequencies glitch-free: when DIVA/DIVB/DIVC inputs change, the output transitions cleanly within one clock cycle of the new division ratio. No runt pulses, metastability, or undefined states occur - confirmed by Typical Output Waveform at DIV Pin Change (Figure 6930 G18) and DDIV specification of 1 cycle delay.
What is the maximum capacitive load the LTC6930CDCB-8.19#TRPBF can drive reliably?
The LTC6930CDCB-8.19#TRPBF is characterized for 5pF load (equivalent to two HC logic inputs) but can drive up to 50pF capacitively. At 50pF and 8.192MHz, supply current increases to ~2.2mA (calculated via ISUPPLY = CLOAD × VSWING × fOSC). Layout must include local 0.1µF bypass caps at Pins 1/2 and 6/8 to manage instantaneous current spikes during rise/fall transitions.
Is the exposed pad (Pin 9) of the LTC6930CDCB-8.19#TRPBF electrically connected internally?
No - the exposed pad (Pin 9) on the LTC6930CDCB-8.19#TRPBF is not internally connected to any die node. It serves exclusively as a thermal and mechanical ground interface and must be externally soldered to the PCB's GND plane. Failure to connect it degrades thermal performance (θJA rises) and may increase jitter due to ground bounce.
LTC6930CDCB-8.19#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:
- 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#TRPBF FAQ
1.How can I place an order for LTC6930CDCB-8.19#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6930CDCB-8.19#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 LTC6930CDCB-8.19#TRPBF reliable?
The price and inventory of LTC6930CDCB-8.19#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6930CDCB-8.19#TRPBF is usually 5 days.
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4.How is shipping managed for LTC6930CDCB-8.19#TRPBF?
LTC6930CDCB-8.19#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6930CDCB-8.19#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 LTC6930CDCB-8.19#TRPBF?
For technical support, including LTC6930CDCB-8.19#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6930CDCB-8.19#TRPBF requirements.
6.How does Aetrix verify that LTC6930CDCB-8.19#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6930CDCB-8.19#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 LTC6930CDCB-8.19#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6930CDCB-8.19#TRPBF?
All LTC6930CDCB-8.19#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6930CDCB-8.19#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 LTC6930CDCB-8.19#TRPBF part is unused and in its original packaging.
Return procedure for LTC6930CDCB-8.19#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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