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Analog Devices Inc. LTC6930HDCB-7.37#TRPBF
- Part No.:
- LTC6930HDCB-7.37#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Programmable Timers and Oscillators
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC6930HDCB-7.37#TRPBF.pdf
- Description:
- IC OSC SILICON 7.3728MHZ 8-DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,657
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Product details
Overview
LTC6930HDCB-7.37#TRPBF from Analog Devices (acquired Linear Technology) is a digitally controlled silicon oscillator with factory-set 7.3728MHz master frequency, selectable via DIVA/DIVB/DIVC pins across 8 output frequencies from 57.6kHz to 7.3728MHz. It delivers ±0.1% frequency accuracy over –40°C to 125°C, <110µs start-up time, and 490µA typical supply current at 3V, targeting ultra-low-power timing in harsh-temperature industrial and automotive control systems.
For engineers reviewing the LTC6930HDCB-7.37#TRPBF datasheet, LTC6930HDCB-7.37#TRPBF pinout, LTC6930HDCB-7.37#TRPBF application, or LTC6930HDCB-7.37#TRPBF equivalent, key selection criteria include its H-grade temperature range, DFN package footprint, digital frequency selection without external components, and RMS period jitter under 0.97nsP-P at 7.3728MHz.
Technical Context
The LTC6930HDCB-7.37#TRPBF implements a proprietary switched-capacitor feedback loop to stabilize its 7.3728MHz master oscillator against temperature and supply variation. Its internal binary divider (1–128) is controlled by three CMOS logic inputs (DIVA/DIVB/DIVC), enabling deterministic frequency switching within one output cycle without runt pulses or glitches.
It features dual V+ and GND pins (pins 1/8 and 2/6) to isolate the oscillator core from output driver noise, and a low-impedance 40Ω CMOS output capable of driving 5pF loads with 3ns rise/fall time. The exposed thermal 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 |
|---|---|
| Output Frequency Range | 57.6kHz to 7.3728MHz via 3-pin binary divider (1–128) |
| Frequency Accuracy | ±0.1% max over –40°C to 125°C, V+ = 1.7V–5.5V |
| Supply Current | 490µA typical at 7.3728MHz, 3V; 183µA typical at 32.768kHz, 3V |
| Start-Up Time | <110µs to first valid output cycle after V+ exceeds 1.7V |
| RMS Period Jitter | 0.97nsP-P at 7.3728MHz, V+ = 3V, CLOAD = 5pF |
| Operating Voltage | 1.7V to 5.5V single supply - supports Li-Ion or dual AA cells |
| Temperature Range | –40°C to +125°C (H-grade), qualified for extended industrial use |
Pinout & Package
Package: 8-lead (2mm × 3mm) plastic DFN (DCB) with exposed thermal pad (pin 9) requiring solder connection to PCB ground plane. Pin pitch is 0.5mm; body thickness 0.75mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ (pins 1, 8) | Positive supply input | Dual supply pins reduce supply impedance; each requires local 0.1µF bypass to adjacent GND |
| GND (pins 2, 6) | Ground reference | Dual ground pins improve noise rejection; must connect to same low-inductance ground plane and exposed pad |
| DIVA, DIVB, DIVC (pins 3, 4, 5) | Digital frequency select inputs | CMOS logic inputs (VIH ≥ 1.4V, VIL ≤ 0.7V); set divider ratio per Table 1 (e.g., [000] = ÷1 = 7.3728MHz) |
| OUT (pin 7) | CMOS clock output | 40Ω series resistance, 3ns rise/fall time; drives up to 50pF load; held low during start-up |
| Exposed Pad (pin 9) | Thermal & electrical ground | Must be soldered to PCB ground plane for thermal dissipation and signal integrity |
Key Features
| Feature | Design Value |
|---|---|
| Digital frequency selection | Three logic pins configure 8 discrete output frequencies without external crystals or capacitors |
| Ultra-low power operation | 105µA typical at 32.768kHz enables multi-year battery life in wake-on-timer applications |
| H-grade temperature qualification | Guaranteed performance from –40°C to +125°C meets automotive under-hood and industrial PLC requirements |
| Glitch-free DIV pin switching | Output transitions cleanly within one clock cycle-no runt pulses or metastability during reconfiguration |
| Integrated supply regulation | Internal regulation minimizes frequency drift to ±0.07%/V over full supply range |
Applications
| Industrial Sensor Node Timing | Automotive Body Control Module Clock |
|---|---|
Use Scenario: Battery-powered wireless sensor node sampling temperature every 10 seconds using deep-sleep MCU mode. IC Role / Device Role / Timing Role: Provides precise wake-up clock for microcontroller; selects 32.768kHz via DIV pins to minimize active current. Use Value: 105µA supply current at 32.768kHz extends 2xAA battery life beyond 5 years; ±0.1% accuracy ensures reliable sleep interval timing across temperature extremes. | Use Scenario: Central body controller synchronizing door lock actuators, interior lighting, and window motors. IC Role / Device Role / Timing Role: Supplies system clock to MCU and peripheral interfaces; configured at 4.000MHz (÷2 from 7.3728MHz) for balanced speed and EMI. Use Value: H-grade rating ensures stable 4MHz clock under hood temperatures up to 125°C; fast 110µs start-up enables rapid module wake-up after ignition. |
| Medical Portable Infusion Pump | Smart Energy Meter Real-Time Clock |
Use Scenario: Portable infusion pump requiring FDA-compliant timing accuracy for motor step control and alarm generation. IC Role / Device Role / Timing Role: Generates 1.8432MHz clock (÷4) for motor driver IC; provides stable base for 1Hz alarm timing via software division. Use Value: ±0.1% frequency error over –40°C to +125°C eliminates calibration drift in field-deployed units; no external crystal reduces BOM count and board area. | Use Scenario: Utility meter operating continuously for 15+ years in outdoor enclosures with wide ambient temperature swings. IC Role / Device Role / Timing Role: Serves as primary RTC reference; configured at 32.768kHz (÷128) for ultra-low power timekeeping. Use Value: 30ppm/√kHr long-term drift limits cumulative error to <0.02% over 5 years; DFN package withstands thermal cycling better than quartz resonators. |
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-JE-33E-32.768000 | 32.768kHz fixed-output MEMS oscillator; ±20ppm initial accuracy; no digital frequency selection | Only supports 32.768kHz; lacks programmable divide capability and wide output range | Select when only real-time clock frequency is needed and lowest possible power is critical |
| MAX7375EKA+T | 32.768kHz to 10MHz programmable oscillator; ±50ppm accuracy over –40°C to +85°C; MSOP-8 package | Limited to commercial/industrial temp range; higher frequency drift (±0.5%/V) and slower start-up (~1ms) | Select when cost sensitivity outweighs H-grade requirement and jitter tolerance is relaxed |
Compared with SiT1533AI-JE-33E-32.768000 and MAX7375EKA+T, the LTC6930HDCB-7.37#TRPBF uniquely combines H-grade temperature operation, 8-frequency digital selection, sub-110µs start-up, and ±0.1% accuracy - making it optimal for reconfigurable timing in mission-critical embedded systems where environmental robustness and flexibility are non-negotiable.
Availability
LTC6930HDCB-7.37#TRPBF is available at Aetrix Electronics and suitable for industrial sensor nodes, automotive body controllers, portable medical devices, and smart energy meters requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for LTC6930HDCB-7.37#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) acquired Linear Technology in 2017 and continues its legacy of high-performance analog, mixed-signal, and precision timing solutions for demanding industrial, automotive, and medical applications.
The LTC6930HDCB-7.37#TRPBF belongs to ADI's precision µPower oscillator product line, designed specifically for battery-operated and thermally extreme systems needing crystal-level accuracy without quartz fragility, external components, or temperature-compensation circuitry.
FAQ
What is the nominal master oscillator frequency of the LTC6930HDCB-7.37#TRPBF?
The LTC6930HDCB-7.37#TRPBF has a factory-programmed master oscillator frequency of exactly 7.372800MHz. This value is fixed and cannot be altered; all eight output frequencies (from 57.6kHz to 7.3728MHz) are derived via integer division (1–128) using the DIVA/DIVB/DIVC pins. The "7.37" in the part number directly references this master frequency.
Does the LTC6930HDCB-7.37#TRPBF require external load capacitors like quartz crystals?
No, the LTC6930HDCB-7.37#TRPBF is a fully integrated silicon oscillator and requires no external load capacitors or tuning components. Only standard 0.1µF ceramic bypass capacitors between each V+ pin and its adjacent GND pin are needed for stable operation. This eliminates crystal matching, PCB layout sensitivity, and aging-related drift inherent in quartz-based solutions.
Can the LTC6930HDCB-7.37#TRPBF operate from a single 1.8V supply?
Yes, the LTC6930HDCB-7.37#TRPBF supports supply voltages from 1.7V to 5.5V. At 1.8V, it delivers 7.3728MHz output with typical supply current of 226µA (÷1) and maintains ±0.1% frequency accuracy across its full –40°C to +125°C operating range. This makes it compatible with modern low-voltage microcontrollers and battery chemistries including LiFePO₄.
How does the LTC6930HDCB-7.37#TRPBF achieve ±0.1% accuracy over –40°C to +125°C?
The LTC6930HDCB-7.37#TRPBF achieves ±0.1% accuracy through a proprietary switched-capacitor feedback loop that actively corrects the master oscillator's frequency in real time. Unlike temperature-compensated crystal oscillators (TCXOs), it uses on-chip analog compensation and internal voltage regulation to suppress both temperature-induced drift (0.001%/°C for DFN) and supply-induced drift (±0.07%/V).
Is the exposed thermal pad (pin 9) of the LTC6930HDCB-7.37#TRPBF electrically connected to ground?
Yes, the exposed thermal pad (pin 9) of the LTC6930HDCB-7.37#TRPBF is internally connected to ground and must be soldered to a PCB ground plane. This connection is mandatory for both thermal dissipation (θJA = 64°C/W) and electrical stability - failure to solder the pad degrades jitter performance, increases supply current, and risks functional failure under thermal stress.
LTC6930HDCB-7.37#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:
- 7.3728MHz
- Voltage - Supply:
- 1.7V ~ 5.5V
- Current - Supply:
- 853 µA
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 8-DFN (2x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC6930HDCB-7.37#TRPBF FAQ
1.How can I place an order for LTC6930HDCB-7.37#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6930HDCB-7.37#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 LTC6930HDCB-7.37#TRPBF reliable?
The price and inventory of LTC6930HDCB-7.37#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6930HDCB-7.37#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6930HDCB-7.37#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6930HDCB-7.37#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6930HDCB-7.37#TRPBF?
LTC6930HDCB-7.37#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6930HDCB-7.37#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 LTC6930HDCB-7.37#TRPBF?
For technical support, including LTC6930HDCB-7.37#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6930HDCB-7.37#TRPBF requirements.
6.How does Aetrix verify that LTC6930HDCB-7.37#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6930HDCB-7.37#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 LTC6930HDCB-7.37#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6930HDCB-7.37#TRPBF?
All LTC6930HDCB-7.37#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6930HDCB-7.37#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 LTC6930HDCB-7.37#TRPBF part is unused and in its original packaging.
Return procedure for LTC6930HDCB-7.37#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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