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Silicon Labs 4455CPCE10D390M
- Part No.:
- 4455CPCE10D390M
- Manufacturer:
- Silicon Labs
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
4455CPCE10D390M.pdf
- Description:
- PICO BOARD EZRADIO 390MHZ
- Quantity:
- Payment:
- Shipping:
Inventory:2,995
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Product details
Overview
4455CPCE10D390M from Silicon Laboratories is a sub-GHz EZRadio® transceiver IC supporting OOK/(G)FSK modulation across 283–960 MHz bands. It delivers –116 dBm receive sensitivity, +13 dBm output power, and ultra-low 10 mA RX / 18 mA TX (at +10 dBm) current consumption - enabling long-range, battery-powered wireless links in home security, remote keyless entry, and industrial telemetry systems.
For engineers reviewing the 4455CPCE10D390M datasheet, 4455CPCE10D390M pinout, 4455CPCE10D390M application, or 4455CPCE10D390M equivalent, this page provides verified technical context, validated pin functions, real-world use-value per application, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The 4455CPCE10D390M implements a single-conversion TDD architecture with integrated ΔΣ fractional-N PLL synthesizer, supporting configurable data rates up to 500 kbps and frequency resolution as fine as 38.1 Hz (283–350 MHz band). Its digital modem performs channel filtering, preamble/sync detection, CRC, AFC, and AGC entirely in the digital domain using a high-performance ADC and programmable demodulator.
It integrates a single-ended +13 dBm PA with automatic ramp control, low-noise LNA with gain control, 64-byte TX/RX FIFOs, on-chip 25–32 MHz crystal oscillator with 70 fF tuning resolution, and an 11-bit auxiliary ADC for battery voltage monitoring - all operating from 1.8–3.6 V supply with 50 nA standby current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | 283–350 MHz, 425–525 MHz, and 850–960 MHz - covers global ISM bands including FCC 902–928 MHz, ETSI 863–870 MHz, and ARIB 920–928 MHz. |
| Receive Sensitivity | –116 dBm at 2.4 kbps GFSK (BER < 0.1%) - enables reliable reception at extended range with minimal external components. |
| Output Power | +13 dBm maximum - supports >1 km line-of-sight range with simple PCB trace antenna or chip antenna. |
| Current Consumption | 10 mA RX / 18 mA TX @ +10 dBm / 50 nA standby - extends coin-cell battery life to multi-year operation in intermittent transmit/receive duty cycles. |
| Data Rate | Up to 500 kbps (GFSK), 120 kbps (OOK) - accommodates both high-throughput sensor reporting and ultra-low-power wake-on-radio protocols. |
| Modulation Support | GFSK, FSK, OOK - allows interoperability with legacy ASK/OOK remotes and modern low-interference GFSK networks. |
| Supply Voltage | 1.8–3.6 V - compatible with single alkaline, lithium coin cell, or regulated 3.3 V system rails without level-shifting. |
Pinout & Package
4455CPCE10D390M is housed in a 20-pin 3×3 mm QFN package with exposed thermal pad (EP), RoHS-compliant, moisture-sensitive level 3. Pin numbering follows standard top-view counterclockwise layout starting from top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 6, 15) | Ground reference | Three dedicated ground pins minimize impedance and improve RF stability; EP must be soldered to PCB ground plane. |
| SDN (Pin 2) | Shutdown control | Active-low enable; pulls device into 30 nA shutdown mode when asserted - critical for ultra-low-power sleep states. |
| RXp / RXn (Pins 3, 4) | Differential RF input | Low-noise LNA input pair - requires balanced matching network for optimal noise figure and sensitivity. |
| TX (Pin 5) | Single-ended RF output | PA output requiring external matching to 50 Ω; supports direct connection to PCB trace or chip antenna. |
| nSEL (Pin 7) | SPI chip select | Active-low SPI interface enable - allows multi-device sharing of SCLK/SDI/SDO lines with independent addressing. |
| SDI / SDO / SCLK (Pins 8–10) | SPI data interface | Standard 3-wire SPI bus (MOSI/MISO/SCLK) operating up to 10 MHz - enables fast register configuration and FIFO access. |
| nIRQ (Pin 11) | Interrupt request | Open-drain status signal indicating packet received, TX complete, or error condition - reduces MCU polling overhead. |
| GPIO0–GPIO3 (Pins 12, 16, 17, 18) | Configurable I/O | Four general-purpose pins supporting digital I/O, analog input (ADC), or dedicated functions like wake-up or sync pulse generation. |
| VDD (Pins 13, 14) | Power supply | Dual 1.8–3.6 V supply pins decouple digital and RF domains - require local 100 nF + 1 µF bypassing per pin. |
| XIN / XOUT (Pins 19, 20) | Crystal oscillator interface | Differential 25–32 MHz crystal connection - internal load capacitance (11 pF, adjustable in 70 fF steps) eliminates external caps. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated ΔΣ Fractional-N PLL | Enables precise frequency synthesis across three sub-GHz bands with <38.1 Hz resolution - eliminates need for multiple crystals or external VCOs. |
| Digital Packet Handler | Performs preamble detection, sync word matching, CRC-16 verification, and 64-byte FIFO management - offloads protocol processing from host MCU. |
| Automatic Gain Control (AGC) | Dynamic LNA/PGA gain adjustment maintains optimal ADC input level across –116 dBm to +10 dBm input range - prevents saturation and improves BER robustness. |
| Battery Voltage Sensor | On-chip 11-bit ADC with 9-bit ENOB monitors supply rail - enables accurate state-of-charge estimation without external components. |
| Low-BOM RF Matching | Single-ended TX output and differential RX inputs designed for 3–5 external components - reduces BOM cost and board area vs. discrete front-end solutions. |
Applications
| Home Security Sensors | Garage Door Openers |
|---|---|
Use Scenario: Wireless door/window contact sensors transmitting periodic status updates and alarm triggers to a central hub. IC Role / Device Role / Timing Role: Sub-GHz transceiver handling bidirectional command/response and low-duty-cycle sensor reporting with wake-on-radio capability. Use Value: –116 dBm sensitivity ensures reliable link through walls and metal enclosures; 50 nA standby current enables 5+ year battery life on CR2032. |
Use Scenario: One-way remote control sending encrypted open/close commands to motorized garage door receivers. IC Role / Device Role / Timing Role: OOK-modulated transmitter with fast turn-on and secure rolling-code support via host MCU. Use Value: +13 dBm output power and integrated PA deliver >300 m range through residential structures; 18 mA TX current allows CR2032 operation for >10,000 actuations. |
| Industrial Telemetry Nodes | Remote Keyless Entry (RKE) |
Use Scenario: Battery-powered temperature/pressure sensors in factory environments transmitting data every 5 minutes to gateway. IC Role / Device Role / Timing Role: Low-power GFSK transceiver with automatic frequency control (AFC) compensating for crystal drift over temperature. Use Value: AFC maintains ±2 kHz frequency lock across –40°C to +85°C; 10 mA RX current enables multi-year deployment without maintenance. |
Use Scenario: Automotive RKE fob sending authenticated unlock/lock commands within 10 m of vehicle. IC Role / Device Role / Timing Role: Sub-GHz transceiver supporting 315 MHz or 434 MHz ISM bands with fast startup (<250 µs XO) and low-latency packet transmission. Use Value: 30 MHz crystal oscillator achieves <250 µs start-up time - meets automotive <500 ms response requirement; integrated CRC ensures command integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar sub-GHz transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si4463-C2A-GMR | Higher +20 dBm output power, improved –133 dBm sensitivity, integrated DC-DC converter; 24-pin QFN package. | Better suited for long-range (>5 km) outdoor telemetry where higher TX power and lower RX noise floor are critical. | Select Si4463 when range extension or regulatory margin is required; not drop-in due to different pinout, power architecture, and footprint. |
| AX5043-DQ4000-T | Lower 13.5 mA TX current at +10 dBm, –117 dBm sensitivity, supports LoRa-like chirp spread spectrum; 24-pin QFN. | Preferred for narrowband, interference-resistant mesh networks where spectral efficiency and coexistence outweigh raw range. | Choose AX5043 for license-free LPWAN deployments needing adaptive data rate and enhanced adjacent-channel rejection. |
Compared with Si4463-C2A-GMR and AX5043-DQ4000-T, the 4455CPCE10D390M offers optimal balance of ultra-low standby current (50 nA), compact 20-pin 3×3 mm footprint, and proven OOK/GFSK interoperability - making it ideal for cost-sensitive, space-constrained, battery-operated consumer and industrial controls where moderate range suffices.
Availability
4455CPCE10D390M is available at Aetrix Electronics and suitable for home automation, remote keyless entry, and industrial telemetry applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for 4455CPCE10D390M 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
Silicon Laboratories is a fabless semiconductor company specializing in silicon timing, IoT connectivity, and mixed-signal solutions for embedded systems.
The Si4455 product line was engineered specifically for ultra-low-power, easy-to-deploy sub-GHz wireless links in battery-operated endpoints - emphasizing plug-and-play configuration, minimal external BOM, and regulatory compliance across global ISM bands.
FAQ
What is the operating frequency range supported by the 4455CPCE10D390M?
The 4455CPCE10D390M operates across three licensed and license-free sub-GHz ISM bands: 283–350 MHz, 425–525 MHz, and 850–960 MHz. This coverage enables compliance with FCC (902–928 MHz), ETSI (863–870 MHz), ARIB (920–928 MHz), and Chinese regulatory requirements without hardware changes - all configured via software-defined radio registers in the 4455CPCE10D390M.
Does the 4455CPCE10D390M include an integrated crystal oscillator?
Yes, the 4455CPCE10D390M integrates a differential crystal oscillator supporting 25–32 MHz crystals with on-chip 11 pF load capacitance (adjustable in 70 fF steps). The typical 30 MHz crystal achieves <250 µs start-up time, eliminating external load capacitors and simplifying layout - a key enabler for rapid time-to-market in the 4455CPCE10D390M design cycle.
What modulation schemes does the 4455CPCE10D390M support?
The 4455CPCE10D390M natively supports OOK, FSK, and GFSK modulation with programmable Gaussian filter BT = 0.5. It handles data rates from 0.5 kbps (OOK) to 500 kbps (GFSK), and includes digital packet handling for preamble, sync word, and CRC-16 - allowing the 4455CPCE10D390M to interoperate with legacy ASK remotes and modern low-interference GFSK networks.
How does the 4455CPCE10D390M achieve ultra-low power consumption?
The 4455CPCE10D390M achieves 50 nA standby current via full shutdown of RC oscillator, digital regulators, and analog blocks. Its 10 mA RX and 18 mA TX (at +10 dBm) currents stem from highly optimized RF front-end, digital modem, and power management - enabling multi-year battery life in intermittent-use applications such as those built around the 4455CPCE10D390M.
Is the 4455CPCE10D390M pin-compatible with other Si44xx devices?
No, the 4455CPCE10D390M is not pin-compatible with earlier Si443x or later Si446x families. It uses a unique 20-pin 3×3 mm QFN layout with specific pin assignments for RXp/RXn, TX, GPIOs, and crystal interface. Migration to Si4463 or Si4438 requires PCB redesign - the 4455CPCE10D390M footprint and signal routing are distinct and non-interchangeable.
4455CPCE10D390M Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Silicon Labs
- Series:
- EZRadio®
- Packaging:
- Box
- Product Status:
- Obsolete
- Type:
- Transceiver
- Frequency:
- 390MHz
- Contents:
- Board(s)
- Utilized IC / Part:
- Si4455
4455CPCE10D390M FAQ
1.How can I place an order for 4455CPCE10D390M through Aetrix?
Please submit a Request for Quotation (RFQ) for 4455CPCE10D390M 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 4455CPCE10D390M reliable?
The price and inventory of 4455CPCE10D390M are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 4455CPCE10D390M is usually 5 days.
3.What payment methods are accepted for 4455CPCE10D390M?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 4455CPCE10D390M transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 4455CPCE10D390M?
4455CPCE10D390M orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 4455CPCE10D390M 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 4455CPCE10D390M?
For technical support, including 4455CPCE10D390M datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 4455CPCE10D390M requirements.
6.How does Aetrix verify that 4455CPCE10D390M is sourced from the original manufacturer or authorized distributors?
All 4455CPCE10D390M 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 4455CPCE10D390M meets industry standards.
7.What is the process for return or replacement of 4455CPCE10D390M?
All 4455CPCE10D390M units undergo pre-shipment inspection (PSI). If there is an issue with 4455CPCE10D390M, 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 4455CPCE10D390M part is unused and in its original packaging.
Return procedure for 4455CPCE10D390M:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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