NX3225GA-32.4576MHZ - 32.4576MHz SMD Crystal | NDK
MPN: NX3225GA-32.4576MHZ β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.42 | $0.42 |
| 10 | $0.38 | $3.80 |
| 100 | $0.33 | $33.00 |
| 500 | $0.3 | $150.00 |
| 1,000 | $0.28 | $280.00 |
Drop-in alternatives for NX3225GA-32.4576MHZ β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
NX3225GA-32.000M-STD-CRG-2
β Drop-Inπ Reference alternative (not in catalog)
NX3225GA-30MHZ-STD-CRG-2
β Drop-Inπ Reference alternative (not in catalog)
NX3225GA-40MHZ-STD-CRG-2
β Drop-Inπ Reference alternative (not in catalog)
NX3225GA-25MHZ-STD-CRG-2
β Drop-Inβ In Stock
$0.07 / Unit
View Datasheet βNX3225GA-24.000MHZ
β Drop-Inβ In Stock
$0.28 / Unit
View Datasheet βNX3225GA-42.000MHZ
β Drop-Inβ In Stock
$0.19 / Unit
View Datasheet βNX3225GA-20MHZ-STD-CRG-2
β Drop-Inβ In Stock
$0.124 / Unit
View Datasheet βNX3225GA-32.4576MHZ Maximum Ratings & Electrical Characteristics
| Nominal Frequency | 32.4576 MHz |
| Frequency Tolerance | +/-20 x 10-6 (+/-20 ppm) max at +25 C |
| Frequency vs Temperature | +/-20 x 10-6 max over 0 C to +70 C |
| Equivalent Series Resistance (Rr) | 50 ohm max (20 MHz <= f <= 50 MHz band) |
| Vibration Mode | Fundamental |
| Resonance Type | Parallel resonance |
| Package Dimensions | 3.2 x 2.5 x 0.75 mm typ. |
| Mounting Type | Surface Mount |
| Operating Temperature | 0 C to +70 C (STD spec) |
| Application Category | OA / AV (consumer equipment) |
| Terminals | 2-pad SMD |
NX3225GA-32.4576MHZ Pin Configuration
| Pin 1 | XTAL1 (Terminal 1) β Crystal terminal 1 - connect to oscillator inverting input / load capacitor |
| Pin 2 | XTAL2 (Terminal 2) β Crystal terminal 2 - connect to oscillator output / load capacitor (polarity is not significant for a passive crystal) |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
NX3225GA-32.4576MHZ is suitable for 6 applications: Audio Master Clock (AV Receivers / DACs), Embedded MCU Clock Source, Office Automation Equipment, Consumer AV Set-Top Boxes and TVs, Networking and Communication Modules, Test and Measurement Instruments.
Audio Master Clock (AV Receivers / DACs)
The NX3225GA-32.4576MHZ fits audio systems because 32.4576 MHz divides by clean binary ratios into standard sample-rate clocks, letting codecs and PLLs generate I2S bit clocks without fractional-N division and the jitter it introduces. The NDK datasheet explicitly targets AV (audiovisual) applications, and the +/-20 ppm calibration plus +/-20 ppm temperature drift keeps pitch error well below audible thresholds. In a typical circuit, the crystal resonates in a Pierce configuration on the codec's XTI/XTO pins with onboard load capacitors; unlike an RC oscillator it provides ppb-class short-term stability. The 50 ohm maximum ESR in the 20 to 50 MHz band guarantees reliable startup with codec oscillator drive circuits, and the 3.2 x 2.5 x 0.75 mm package fits inside dense AV receiver and portable DAC boards.
Recommended
Embedded MCU Clock Source
For microcontroller systems needing a stable external clock, the NX3225GA-32.4576MHZ provides a fundamental-mode parallel-resonant reference with +/-20 ppm calibration, far tighter than internal RC oscillators (typically +/-1% to +/-2%). Its 50 ohm maximum ESR at 32.4576 MHz gives comfortable startup margin against typical MCU Pierce-oscillator transconductance, and its heat and shock resistance, highlighted in the NDK datasheet, suits consumer appliances that experience thermal cycling and handling stress. Designers place the crystal directly at the OSC pins with two load capacitors sized to the MCU's stated CL, keeping traces short. The ultra-thin 0.75 mm profile allows placement even under shields or beneath stacked boards in compact IoT and office-automation hardware where through-hole 49S crystals cannot fit.
Recommended
Office Automation Equipment
The NDK datasheet positions the NX3225GA family explicitly for OA (office automation) applications: printers, copiers, scanners, and MFP controller boards. These products need a low-cost, miniature, high-reliability clock that survives warm chassis environments and shipping shock; the NX3225GA-32.4576MHZ answers with +/-20 ppm accuracy over 0 to +70 C, a ceramic package rated for heat and shock resistance, and a 3.2 x 2.5 x 0.75 mm outline that fits dense mainboard layouts. Because the family is mass-produced with NDK's thorough quality control, per-unit cost drops below $0.30 at volume, important for cost-sensitive OA hardware. The crystal typically clocks the system MCU or the print-engine ASIC reference PLL, where its stability keeps communication interfaces and motor timing consistent across units.
Recommended
Consumer AV Set-Top Boxes and TVs
Set-top boxes, digital TVs, and streaming media players use 32.4576 MHz-class crystals as the audio subsystem master clock and as general system references. The NX3225GA-32.4576MHZ suits this environment because its small footprint coexists with dense HDMI/USB SoC layouts, its 50 ohm max ESR ensures oscillator startup even with low-power SoC oscillator amplifiers, and its +/-20 ppm drift over 0 to +70 C holds audio-video synchronization inside consumer operating ranges. The crystal's excellent shock resistance per the NDK datasheet tolerates shipping and installation handling. In the typical topology, the crystal feeds the SoC's clock-generator PLL, which synthesizes audio and video clocks; the fundamental-mode design avoids the spurious modes that can plague overtone circuits in cost-driven consumer platforms.
Recommended
Networking and Communication Modules
Communication modules - Wi-Fi dongles, Zigbee/Thread radios, and embedded Ethernet endpoints - require a quartz reference with low phase jitter and tight calibration. The NX3225GA-32.4576MHZ supplies a +/-20 ppm reference suitable for radio PLLs whose protocol specifications commonly allow +/-40 ppm total error; pairing +/-20 ppm calibration with +/-20 ppm temperature drift just meets this budget. Its 50 ohm maximum ESR at 32.4576 MHz supports reliable oscillation with RF SoC oscillator stages, and the compact 3.2 x 2.5 mm, 0.75 mm-thin ceramic package fits within module envelopes and under RF shields. NDK's mass-production consistency keeps per-lot frequency spread small, which simplifies production calibration. Layout practice: keep the crystal loop away from antenna feed lines to prevent coupling the reference oscillator into the RF path.
Recommended
Test and Measurement Instruments
Bench instruments, data-acquisition boards, and sensor interfaces use stable quartz references as ADC/DAC sampling clocks and MCU timebases. The NX3225GA-32.4576MHZ offers +/-20 ppm calibration and fundamental-mode operation, which keeps sampling-timebase error small without the cost of TCXO-grade parts; where 32.4576 MHz divides neatly into audio-band sample clocks, distortion measurements benefit from jitter-free integer clock relationships. NDK's stated heat and shock resistance supports portable instruments that see field handling, and the 3.2 x 2.5 x 0.75 mm package integrates into dense mixed-signal layouts between converters and controllers. Designers should verify the instrument's load-capacitance budget against the crystal's specified CL and keep the crystal ground pads tied directly to the analog ground plane to protect measurement noise floors.
Recommended
Recommended Products Summary
Engineering reference data for NX3225GA-32.4576MHZ β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | NX3225GA-32.000M-STD-CRG-2 | NX3225GA-25MHZ-STD-CRG-2 | NX3225GA-24.000MHZ | NX3225GA-42.000MHZ |
|---|---|---|---|---|---|
| Package | 3225 SMD (3.2 x 2.5 x 0.75 mm) | 3225 SMD - same | 3225 SMD - same | 3225 SMD - same | 3225 SMD - same |
| Brand | NIHON DEMPA KOGYO (NDK) | NIHON DEMPA KOGYO (NDK) | NIHON DEMPA KOGYO (NDK) | NIHON DEMPA KOGYO (NDK) | NIHON DEMPA KOGYO (NDK) |
| Nominal Frequency | 32.4576 MHz | 32.000 MHz | 25.000 MHz | 24.000 MHz | 42.000 MHz |
| Frequency Tolerance | +/-20 x 10-6 | +/-20 x 10-6 | +/-20 x 10-6 | +/-20 x 10-6 | +/-20 x 10-6 |
| Frequency vs Temperature | +/-20 x 10-6 (0 to +70 C) | +/-20 x 10-6 (0 to +70 C) | +/-20 x 10-6 (0 to +70 C) | +/-20 x 10-6 (0 to +70 C) | +/-20 x 10-6 (0 to +70 C) |
| Max ESR (band) | 50 ohm (20-50 MHz band) | 50 ohm (20-50 MHz band) | 50 ohm (20-50 MHz band) | 50 ohm (20-50 MHz band) | 50 ohm (20-50 MHz band) |
| Vibration Mode | Fundamental | Fundamental | Fundamental | Fundamental | Fundamental |
| Application Focus | AV master clock / OA / general clocking | Generic 32 MHz clocking (USB-class) | Ethernet PHY reference | MCU / USB clocking | RF / high-frequency reference |
Key Differentiators
- True audio master clock frequency (vs NX3225GA-32.000M-STD-CRG-2)
- Low ESR band placement (vs NX3225GA-20MHZ-STD-CRG-2)
- Miniature thin profile (vs Larger 5032/49S crystal types)
Design Notes
Place the NX3225GA-32.4576MHZ as close to the oscillator pins as possible and keep crystal traces short (ideally under 10 mm) and symmetric between the two pads. Load capacitors must return to a clean ground with a direct via to the ground plane right at the crystal's ground region. Do not route clock, USB, or RF switching lines under or adjacent to the crystal, as coupled noise can pull the resonant frequency and add jitter to the 32.4576 MHz reference.
A crystal's calibration is only valid at its specified load capacitance (CL). If the board's effective CL (series combination of the two load capacitors plus PCB strays) deviates from the NX3225GA's specified CL, the oscillator will run off-frequency by tens of ppm. When substituting another 3225 crystal, always match CL, not just frequency. Also verify the negative resistance margin: aim for at least 5x the crystal's maximum ESR (50 ohms at 32.4576 MHz, so at least 250 ohms) to guarantee startup across temperature and aging.
Estimated: the frequency-temperature drift of +/-20 ppm over 0 to +70 C follows the AT-cut cubic curve; a system warm-up from 25 C to 60 C self-heating can therefore shift the clock by roughly +/-5 to +/-10 ppm dynamically. Minimize localized heat sources (power LEDs, regulators) near the crystal to keep the reference at a stable soak temperature. The 0.75 mm-thin ceramic package also transfers board stress to the quartz die, so avoid placing the part near board edges, mounting holes, or connector insertion zones where flex strain shifts frequency or cracks the element.
Compliance Information
The verified web data does not state RoHS/REACH compliance for this ordering code. NDK targets this family at consumer OA/AV equipment; contact NDK or XAIPART for current compliance certificates before relying on RoHS status.
