NX3225GA-14.7456M - 14.7456MHz 8pF SMD Crystal | NDK
MPN: NX3225GA-14.7456M β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.11 | $0.11 |
| 10 | $0.09 | $0.90 |
| 100 | $0.08 | $8.00 |
| 500 | $0.07 | $35.00 |
| 1,000 | $0.06 | $60.00 |
NX3225GA-14.7456M Overview
A crystal unit is a passive frequency-control component that uses the mechanical resonance of a precisely cut quartz blank to generate a stable reference frequency. Within the frequency-control hierarchy, crystals sit above raw resonators in accuracy and below temperature-compensated (TCXO) and oven-controlled (OCXO) oscillators; a crystal requires an oscillator circuit (often inside an MCU, SoC, or transceiver) to oscillate. The 14.7456 MHz value is a common audio-rate multiple, making this crystal popular in audio and A/V clocking chains.
Key features of the NX3225GA series include compact and thin construction (typ. 3.2 x 2.5 x 0.75 mm), excellent heat and shock resistance, and strong electrical performance suited to OA (office automation) and AV (audiovisual) equipment. The -STD-CRG suffix variants specify 20 ppm frequency tolerance, 30 ppm stability over -40C to +85C, and lead-free reflow-compatible termination.
The fundamental-mode AT-cut design minimizes spurious modes, and the low-profile ceramic package supports automated high-volume surface-mount assembly. The 80 ohm ESR at 14.7456 MHz provides adequate oscillation margin for typical Pierce oscillator circuits in microcontrollers and audio codecs.
Typical applications include audio interface clocking (14.7456 MHz is a convenient audio clock multiple), USB-audio and DSP systems, set-top boxes, OA equipment, and general-purpose MCU reference clocks where miniaturization matters.
When designing the layout, keep load capacitors close to the crystal pads and match the total load capacitance to the specified 8 pF; excessive stray capacitance pulls the frequency lower than tolerance.
This page synthesizes distributor pricing, availability, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for NX3225GA-14.7456M β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with NX3225GA-14.7456M (same form factor and footprint) β differing in Frequency Tolerance, Reflow Soldering.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
NX3225GA-14.7456M-STD-CRG-1
β Drop-Inπ Reference alternative (not in catalog)
STDCRG2-14.7456M
β Drop-Inπ Reference alternative (not in catalog)
NX3225GA-14.7456M-STD-CRA-1
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
NX3225GA-14.7456M Specifications
| Frequency | 14.7456 MHz |
| Frequency Tolerance | 20 ppm |
| Frequency Stability | 30 ppm |
| Load Capacitance | 8 pF |
| ESR (Equivalent Series Resistance) | 80 ohms |
| Operating Mode | Fundamental |
| Operating Temperature | -40C to +85C |
| Package | 4-SMD, No Lead (3225) |
| Package Dimensions | 3.2 x 2.5 x 0.75 mm (typ.) |
| Mounting Type | Surface Mount |
| Type | MHz Quartz Crystal Unit |
| Reflow Soldering | Lead-free reflow profile supported |
| RoHS Status | Compliant |
| Series | NX3225GA (Standard) |
| Typical Applications | OA and AV equipment |
NX3225GA-14.7456M 3.2 x 2.5 x 0.75 mm (typ.) Pin Configuration Guide
Pin configuration for NX3225GA-14.7456M (3.2 x 2.5 x 0.75 mm (typ.) package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for NX3225GA-14.7456M.
Refer to the datasheet for full pin configuration.
Typical Applications
NX3225GA-14.7456M is suitable for 6 applications: Audio Interface Clocking, Microcontroller Reference Clock, Set-Top Box and AV Consumer Electronics, OA Equipment and Printers, USB Audio and DSP Systems, Portable and Wearable Devices.
Audio Interface Clocking
The 14.7456 MHz frequency is an integer multiple of standard audio sample-rate families, enabling clean 44.1 kHz and 48 kHz-family clocks via simple integer division from a single crystal. The NX3225GA-14.7456M's 20 ppm tolerance and 30 ppm stability over -40C to +85C keep pitch error inaudible in consumer and prosumer audio devices, while the fundamental-mode AT-cut blank suppresses spurious modes that would otherwise create audible sidebands. NDK explicitly rates the series for AV (audiovisual) equipment. Typical circuits drive a USB-audio codec or audio SoC PLL input with an 8 pF load network; unlike a free-running oscillator, one crystal can serve both ADC and DAC clock domains after division, reducing BOM count. The 0.75 mm profile fits slim USB dongles and portable recorders where board height is constrained.
Recommended
Microcontroller Reference Clock
The NX3225GA-14.7456M provides a stable external reference for MCU oscillator circuits in embedded controllers, set-top boxes, and OA (office automation) peripherals. Its 80 ohm ESR at 8 pF load suits typical Pierce oscillators, provided the MCU's oscillator negative-resistance margin exceeds roughly five times ESR; at 80 ohms this means verifying at least 400 ohms of negative resistance in your driver. The compact 3.2 x 2.5 x 0.75 mm no-lead footprint lets the crystal sit within millimeters of the MCU's OSC pins, minimizing loop area, radiated EMI, and frequency pull from stray capacitance. NDK's heat and shock resistance specification makes the part robust in appliances and industrial HMI boards that see thermal cycling and mechanical vibration during shipping and operation.
Recommended
Set-Top Box and AV Consumer Electronics
Consumer AV platforms such as set-top boxes, TV tuners, and streaming media players require multiple audio-rate and system clocks derived from few crystals to minimize BOM cost. The 14.7456 MHz value divides cleanly to audio master-clock rates, and the NX3225GA's 30 ppm stability keeps downstream PLL lock ranges comfortable even across the -40C to +85C ambient span. The thin 0.75 mm profile suits low-profile set-top enclosures, and the lead-free reflow-compatible termination survives standard SAC305 reflow ovens used in high-volume consumer assembly. Excellent shock resistance protects yield during drop tests, a common qualification gate for consumer AV hardware. Its low 8 pF load capacitance also reduces oscillator drive current, contributing marginally to standby-power budgets that consumer standards increasingly constrain.
Recommended
OA Equipment and Printers
Office automation equipment - printers, scanners, multifunction peripherals - uses 14.7456 MHz-class crystals for audio-adjacent functions (fax modems, alert tones, scanner motor PLL references) where timing accuracy directly affects data integrity. The NX3225GA-14.7456M's 20 ppm tolerance is tighter than typical 50 ppm general-purpose crystals, reducing bit-error margins in fax modem chains. NDK's emphasis on heat resistance suits printer interiors, where ambient temperatures near the fuser regularly exceed 70C; the +85C upper limit covers this with margin. The compact 3225 footprint lets designers cluster frequency-control components in one board area, simplifying EMC layout, and the no-lead package presents low series inductance that improves high-frequency spectral purity in modem and motor-control PLL applications.
Recommended
USB Audio and DSP Systems
USB-audio devices, DSP front ends, and digital crossover boards benefit from the NX3225GA-14.7456M because a single 14.7456 MHz reference can be multiplied in the codec PLL to generate both 44.1 kHz and 48 kHz clock families with low jitter. The crystal's fundamental-mode operation avoids the sub-harmonic spurs characteristic of third-overtone designs, improving PLL capture behavior. Low 8 pF load capacitance means modest drive-level stress on the crystal, extending long-term frequency drift performance - important for devices that must hold tuning over years of service. Layout-wise, route the crystal with a guard ground ring and keep both load capacitors on the same side as the pads; the 0.75 mm height also allows placement under flex cables or shields common in headset adapters.
Recommended
Portable and Wearable Devices
Miniaturized designs - portable recorders, smart accessories, and IoT sensor nodes - need the NX3225GA's 3.2 x 2.5 x 0.75 mm dimensions, among the thinnest 3225 crystals available, to fit under battery-adjacent zones and within z-height-limited enclosures. NDK's shock-resistance engineering withstands drop events that crack more brittle crystal blanks, protecting field failure rates in handheld products. The 8 pF load capacitance pairs with low-power Pierce oscillators on BLE and MCU SoCs, where every microamp of oscillator drive counts against battery life. Operation down to -40C supports outdoor wearable and asset-tracking use. Because the no-lead package has low self-inductance, it tolerates placement near radio sections better than leaded crystals, easing dense RF coexistence layouts.
Recommended
Recommended Products Summary
Engineering reference data for NX3225GA-14.7456M β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | NX3225GA-14.7456M-STD-CRG-1 | STDCRG2-14.7456M | NX3225GA-14.7456M-STD-CRA-1 |
|---|---|---|---|---|
| Package | 4-SMD, No Lead (3225), 3.2 x 2.5 x 0.75 mm | 4-SMD, No Lead (3225) - same | 4-SMD, No Lead (3225) - same | 4-SMD, No Lead (3225) - same |
| Brand | NDK | NDK | NDK | NDK |
| Frequency | 14.7456 MHz | 14.7456 MHz | 14.7456 MHz | 14.7456 MHz |
| Load Capacitance | 8 pF | 8 pF | 8 pF | 8 pF |
| ESR | 80 ohms | 80 ohms | 80 ohms | 80 ohms |
| Frequency Tolerance | 20 ppm | 20 ppm | 20 ppm | 20 ppm |
| Packaging Variant | STD-CRG taping (Tape & Reel) | STD-CRG taping variant 1 | Standard packaging orderable | STD-CRA taping variant |
Key Differentiators
- Thin 0.75 mm profile in 3225 footprint (vs Generic 3225 crystals (1.0 mm class))
- Audio-friendly 14.7456 MHz integer-multiple frequency (vs NX3225GA-20MHZ-STD-CRG-2)
- Industrial temperature range in standard grade (vs NX3225GA-14.7456M-STD-CRA-1)
Design Notes
Place the two load capacitors within 2 to 3 mm of the crystal pads and connect their common node directly to a solid ground plane with multiple vias. The NX3225GA-14.7456M is specified at 8 pF load; with typical 2 to 3 pF board stray capacitance, start with 10 to 12 pF C1 = C2 and trim by frequency measurement. Keep the crystal loop short to limit EMI and prevent unwanted capacitive coupling that pulls frequency below tolerance. Follow the land pattern in the NDK NX3225GA series datasheet.
Verify oscillation margin: the crystal's 80 ohm ESR requires the oscillator's negative resistance to be at least five times ESR (about 400 ohms) across temperature for reliable startup. Estimated: for a typical MCU Pierce oscillator this is comfortably met, but low-power oscillator modes on some SoCs drive weakly - check the SoC datasheet's crystal drive-level table and, if marginal, select a lower-ESR crystal variant rather than increasing shunt capacitance, which would pull the frequency.
Do not substitute a same-frequency crystal from another vendor without comparing both load capacitance (8 pF here) and ESR (80 ohms here): an incorrect load value shifts frequency by the pulling formula delta-f/f approx CL_delta/(2*CL), and mismatched ESR can prevent startup. Also confirm the exact suffix (-STD-CRG-1 vs -CRG-2) on purchase orders - they are the same crystal but different taping, and reel orientation matters for automated pick-and-place feeders.
Compliance Information
RoHS compliant and lead-free reflow compatible per NDK product page and LCSC listing. REACH, halogen-free, and conflict-minerals status not stated in provided data - request manufacturer declarations.
