KC2520B24.0000C1GE00 - 24MHz CMOS XO Oscillator | KYOCERA AVX
料号： KC2520B24.0000C1GE00 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0.84 | $0.84 |
| 10 | $0.76 | $7.60 |
| 100 | $0.65 | $65.00 |
| 500 | $0.59 | $295.00 |
| 1,000 | $0.54 | $540.00 |
| 3,000 | $0.5 | $1,500.00 |
KC2520B24.0000C1GE00 概述
An XO (crystal oscillator) is a self-contained timing device that integrates a quartz resonator and an oscillation circuit in a single sealed package, eliminating the need for external load capacitors or matching networks. Compared with a bare quartz crystal, an SPXO offers higher drive strength, a clean logic-level output, and tighter initial frequency tolerance, making it the workhorse timing source for digital MCUs, SoCs, and high-speed serial links.
Key features of the KC2520B24.0000C1GE00 include a ±50 ppm frequency stability over the full -40 °C to +85 °C operating range, a CMOS output drive capable of sinking/sourcing 15 pF loads, 55 % typical symmetry, and very low standby current. The 4-pad SMD package enables reflow-compatible assembly and excellent mechanical stability for handheld and industrial equipment.
Architecturally, this part is built around an AT-cut quartz resonator and a CMOS-compatible sustaining amplifier, with internal voltage regulation that allows operation across the 1.6 V – 3.63 V supply window without external level translation. The KC2520C-C1 series targets applications where a small footprint, low power consumption, and stable frequency are simultaneously required.
Typical applications include smartphone and tablet PC main reference timing, communication-module clocking, wearable and audio devices, industrial controllers, and base-station equipment. The 24 MHz output is widely used for USB full-speed peripherals, low-power MCU reference clocks, and audio DSP clock trees.
When designing with this part, place the decoupling capacitor within 2 mm of the VDD pin, keep the standby pin either tied high through a pull-up or driven by a logic-level GPIO, and avoid routing high-speed signal traces directly under the oscillator to minimise load-capacitance drift and jitter.
This page synthesises distributor pricing, drop-in alternatives from the KC2520 family and competing 2.5 x 2.0 mm CMOS XO parts, and practical design notes that are not aggregated in the manufacturer datasheet alone.
直接替换替代料： KC2520B24.0000C1GE00 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
KC2520K24.0000C1GE00
✅ 直接替换📋 参考替代料（不在目录中）
KC2520B25.0000C1GE00
✅ 直接替换📋 参考替代料（不在目录中）
KC2520B48.0000C1GE00
✅ 直接替换📋 参考替代料（不在目录中）
KC2520B12.0000C1GE00
✅ 直接替换📋 参考替代料（不在目录中）
KC2520B27.0000C1GE00
✅ 直接替换📋 参考替代料（不在目录中）
KC2520B24.0000C1GE00 规格参数
| Part Type | Standard Clock Oscillator (SPXO) |
| Series | KC2520B / KC2520C-C1 |
| Nominal Frequency | 24.0000 MHz |
| Frequency Stability | ±50 ppm |
| Supply Voltage (VDD) | 1.6 V to 3.63 V |
| Typical Supply Voltages | 1.8 V / 2.5 V / 3.3 V |
| 输出类型 | CMOS |
| Output Load | 15 pF |
| Symmetry (Duty Cycle) | 55 % (typical) |
| 功能 | Standby (Power Down) |
| 工作温度 | -40 °C to +85 °C |
| 封装 | 4-SMD, No Lead (2.50 mm x 2.00 mm) |
| 安装类型 | Surface Mount |
| Packaging | Tape & Reel |
| RoHS 状态 | Compliant |
| 引脚数量 | 4 pads |
| Length | 2.50 mm (0.098 in) |
| Width | 2.00 mm (0.079 in) |
KC2520B24.0000C1GE00 引脚配置
| 引脚 1 | STBY — Standby (Power Down) — drive low to place the oscillator in power-down state, otherwise leave high or pull up to VDD for normal operation |
| 引脚 2 | GND — Ground reference for the supply and the CMOS output |
| 引脚 3 | OUT — CMOS output — 24.0000 MHz square wave, 55 % typical symmetry, drives up to 15 pF load |
| 引脚 4 | VDD — Supply voltage input — 1.6 V to 3.63 V (1.8 V, 2.5 V, 3.3 V typical); place a 0.1 µF decoupling capacitor within 2 mm of this pad |
典型应用
KC2520B24.0000C1GE00 适用于 6 应用s: Microcontroller / SoC Reference Clock, USB Full-Speed Device Timing, Communication Module Clocking, Audio Device Reference Clocking, Industrial Controller and PLC Timing, Wearable and Fitness Device Timing.
Microcontroller / SoC Reference Clock
The KC2520B24.0000C1GE00 delivers a 24.0000 MHz CMOS reference clock to MCUs and SoCs that expect a fixed-frequency external timing source, with ±50 ppm stability across -40 °C to +85 °C. Its 1.6 V-3.63 V supply window lets it drive 1.8 V, 2.5 V, and 3.3 V oscillator inputs found on ARM Cortex-M, ESP32, and similar parts. The integrated amplifier removes the need for an external load-capacitor network and provides a clean 55 %-symmetry CMOS square wave. Compared with a bare 24 MHz crystal plus external amplifier circuit, this part saves PCB real-estate and reduces BOM risk in low-power IoT chip designs where every mm² and every external part counts.
推荐
USB Full-Speed Device Timing
USB full-speed devices require an accurate 24 MHz reference clock that the on-chip PLL multiplies up to the 480 MHz high-speed USB clock or feeds directly into the full-speed signalling. The KC2520B24.0000C1GE00's 24.0000 MHz nominal output with ±50 ppm stability is well within the USB 2.0 full-speed accuracy envelope, and the CMOS rail-to-rail swing simplifies connection to the chip's XI/CLKIN pad. The standby (power-down) pin allows the system to disable the oscillator when the USB peripheral is not in use, reducing quiescent draw in battery-powered mobile and wearable designs. The 2.50 x 2.00 mm 4-pad SMD no-lead footprint is well suited to compact handheld USB dongle layouts where board area is at a premium.
推荐
Communication Module Clocking
Communication modules — Wi-Fi, Bluetooth, sub-GHz radio, and cellular modems — typically need an accurate low-jitter reference clock to drive their internal frequency synthesiser and baseband processor. The KC2520B24.0000C1GE00's CMOS output with 15 pF drive capability provides a clean logic-level clock suitable for direct connection to a module's reference-clock input. The ±50 ppm stability meets the accuracy budget for most short-range radio links, and the -40 °C to +85 °C industrial temperature range supports outdoor and industrial deployments. The 1.6 V-3.63 V supply window means a single oscillator part can be used across modules with different internal rail voltages, simplifying the BOM for module families.
推荐
Audio Device Reference Clocking
Audio DACs, ADCs, and Bluetooth audio modules require a low-jitter reference clock to meet dynamic-range and THD+N specifications. The KC2520B24.0000C1GE00's CMOS output stage produces fast, symmetric edges that minimise timing jitter, and the integrated amplifier isolates the resonator from load variations on the PCB. Audio devices often need 24.576 MHz or 24 MHz clock references for standard audio sample-rate generation (48 kHz x 512, etc.), and the 24 MHz variant aligns with audio pipelines that derive 48 kHz by integer division from 24 MHz. The 2.5 x 2.0 mm SMD footprint suits portable audio applications such as headphones and TWS earbuds where PCB area is at a premium.
推荐
Industrial Controller and PLC Timing
Industrial controllers, PLCs, and factory-automation nodes require reliable timing that survives extended temperature and supply variation. The KC2520B24.0000C1GE00's -40 °C to +85 °C operating range and 1.6 V to 3.63 V supply window cover the worst-case factory-floor conditions, while the ±50 ppm stability is sufficient for serial-fieldbus (RS-485, RS-232, CAN) baud-rate generation. The CMOS output interfaces directly with industrial MCU clock inputs without additional buffering, and the standby (power-down) function lets the system gate the clock during low-power modes. The KYOCERA AVX SMD no-lead package withstands the vibration profile of industrial equipment better than leaded through-hole parts.
推荐
Wearable and Fitness Device Timing
Wearables — smartwatches, fitness bands, TWS earbuds, and medical patches — require a tiny, low-power clock source that fits a cramped PCB. The KC2520B24.0000C1GE00's 2.50 mm x 2.00 mm 4-pad SMD footprint is among the smallest standard-oscillator packages available, and the standby (power-down) pin lets the system shut down the oscillator when the SoC is in deep sleep to extend battery life. The CMOS output swings rail-to-rail on the chosen supply rail (1.8 V typical for wearables), so no level shifter is required. The -40 °C to +85 °C operating range covers outdoor winter and indoor fitness use cases, and the ±50 ppm stability is more than adequate for BLE and audio sample-rate generation.
推荐
推荐产品汇总
工程参考数据： KC2520B24.0000C1GE00 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | KC2520K24.0000C1GE00 | KC2520B25.0000C1GE00 | KC2520B48.0000C1GE00 | KC2520B12.0000C1GE00 | KC2520B27.0000C1GE00 |
|---|---|---|---|---|---|---|
| Package | 4-SMD, No Lead (2.50x2.00 mm) | 4-SMD, No Lead (2.50x2.00 mm) — same | 4-SMD, No Lead (2.50x2.00 mm) — same | 4-SMD, No Lead (2.50x2.00 mm) — same | 4-SMD, No Lead (2.50x2.00 mm) — same | 4-SMD, No Lead (2.50x2.00 mm) — same |
| Brand | KYOCERA AVX | KYOCERA AVX | KYOCERA AVX | KYOCERA AVX | KYOCERA AVX | KYOCERA AVX |
| Nominal Frequency | 24.0000 MHz | 24.0000 MHz | 25.0000 MHz | 48.0000 MHz | 12.0000 MHz | 27.0000 MHz |
| Frequency Stability | ±50 ppm | ±50 ppm | ±50 ppm | ±50 ppm | ±50 ppm | ±50 ppm |
| Supply Voltage | 1.6 V to 3.63 V | 1.6 V to 3.63 V | 1.6 V to 3.63 V | 1.6 V to 3.63 V | 1.6 V to 3.63 V | 1.6 V to 3.63 V |
| Output Type | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS |
| Output Load | 15 pF | 15 pF | 15 pF | 15 pF | 15 pF | 15 pF |
| Standby Pin | Yes (pin 1) | Yes (pin 1) | Yes (pin 1) | Yes (pin 1) | Yes (pin 1) | Yes (pin 1) |
| Operating Temperature | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
关键差异点
- Single BOM line covers 1.8 V, 2.5 V, and 3.3 V rails （对比 KC2520K24.0000C1GE00)
- Same-series 24 MHz options at identical stability class （对比 KC2520B25.0000C1GE00)
- Integrated standby function in a 4-pad SMD package （对比 KC2520B48.0000C1GE00)
设计说明
Place a 0.1 µF X7R ceramic capacitor between pin 4 (VDD) and pin 2 (GND) within 2 mm of the package, and route the supply trace directly to the pad to minimise inductance. The CMOS output pin should connect to the downstream clock input using the shortest possible trace; avoid routing high-frequency signals directly under the oscillator package to prevent load-capacitance drift and EMI coupling. Maintain a clearance of at least 0.5 mm between the oscillator body and any switching-power traces to keep power-supply noise off the reference clock.
The CMOS output is rated for a 15 pF load. Trace capacitance of approximately 1 pF per 10 mm of microstrip at 4-layer FR4 quickly approaches this budget, so keep the output trace under 30 mm and avoid fan-out through vias on the clock net. If the receiver is more than 50 mm away, consider a series 33 ohm damping resistor at the oscillator output pin to reduce ringback on the rising edge. The standby (power-down) pin should be driven from a logic-level GPIO or pulled up to VDD through a 10 kohm resistor — never left floating — to avoid undefined oscillation state on start-up.
Do not use the KC2520B24.0000C1GE00 in a circuit that expects a 24.0000 MHz fundamental mode crystal with external load capacitors — the integrated amplifier is sealed and adding external capacitors does not adjust the frequency. Avoid exposing the part to ultrasonic cleaning or board-level conformal coating that floods the package, as this can shift the effective load capacitance and pull the frequency. For battery-powered designs, the standby current (refer to datasheet for the exact value) sets the floor on standby power; gate the oscillator with the MCU's clock-request GPIO rather than leaving it always-on.
Estimated: at VDD = 3.3 V and a 15 pF load switching at 24 MHz, the oscillator dissipates approximately 5-10 mW (calculation: 0.5 x C x VDD^2 x f x load activity factor). The thermal resistance of the 2.5 x 2.0 mm 4-pad SMD package is high (no exposed thermal pad), so no heatsink is required. For long-term reliability, keep the ambient operating temperature at least 10 °C below the +85 °C upper limit when the device is sealed in an enclosed enclosure with limited airflow.
合规信息
RoHS compliance per KYOCERA AVX product page; REACH, conflict-minerals, and halogen-free status not explicitly listed in the verified web data — set to 'unknown'.