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Microchip Technology ATA5830-PNQW
- Part No.:
- ATA5830-PNQW
- Manufacturer:
- Microchip Technology
- Category:
- RF Transceiver ICs
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
ATA5830-PNQW.pdf
- Description:
- IC RF TXRX+MCU ISM<1GHZ 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,190
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Product details
Overview
ATA5830-PNQW from Microchip (formerly Atmel) is a highly integrated UHF ASK/FSK transceiver IC with embedded 8-bit AVR microcontroller, 24KB ROM firmware, 6KB in-system programmable Flash, and dual-path digital baseband for autonomous multi-channel polling. It operates across 310–318 MHz, 418–477 MHz, and 836–928 MHz bands, supports Manchester-coded FSK/ASK reception down to –121 dBm at 0.75 kbit/s, and delivers up to +14.5 dBm TX output power with fractional-N PLL frequency synthesis. It is used in automotive RKE, TPMS, and PEG systems requiring ultra-low-power wake-up and ID scanning.
For engineers reviewing the ATA5830-PNQW datasheet, ATA5830-PNQW pinout, ATA5830-PNQW application, or ATA5830-PNQW equivalent, key selection considerations include its dual-receive-path architecture, 5nA OFFMode current, programmable RX-IF bandwidth (25–366 kHz), automatic antenna tuning for loop antennas, and SPI-controlled configuration with EEPROM-stored channel parameters.
Technical Context
The ATA5830-PNQW implements a low-IF RF frontend with double quadrature downconversion, digitized IF processing, and two independent receive data paths-enabling simultaneous detection of telegrams with different modulations, data rates, or wake-up patterns. Its fractional-N PLL provides 93 Hz (low-band) or 185 Hz (high-band) frequency resolution and supports crystal-derived clock outputs.
Digital baseband includes an integrated 8-bit AVR CPU, 512-byte EEPROM for transceiver configuration (RF frequency, modulation, data rate), 768-byte SRAM, and 6 KB Flash for customer application extensions-allowing custom SPI command sets, single-wire interface emulation, or protocol-specific polling logic without external host intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Bands | 310–318 MHz, 418–477 MHz, 836–928 MHz - supports global ISM band operation including 315.00/433.92/868.30/915.00 MHz with single 24.305 MHz crystal |
| RX Sensitivity (FSK) | –121 dBm at 0.75 kbit/s (Δf = ±0.75 kHz, BWIF = 25 kHz) - enables ultra-low-data-rate telemetry in high-noise environments |
| TX Output Power | Programmable from –12 dBm to +14.5 dBm in 0.4 dB steps - allows precise EIRP control to meet EN 300 220/FCC Part 15 limits |
| OFFMode Current | Typ. 5 nA (max 600 nA at 3.6 V / 85°C) - enables >10-year battery life in key fob applications using lithium coin cells |
| Supply Voltage | 1.9–3.6 V or 4.5–5.5 V - dual-range support accommodates both 3V key fobs and 5V vehicle-side modules |
| Operating Temp. | –40°C to +105°C - qualified for under-hood and exterior automotive deployment |
| Modulation Support | ASK and FSK with programmable deviation (±0.375 kHz to ±93 kHz) - compatible with legacy RKE protocols and modern low-power telemetry |
Pinout & Package
ATA5830-PNQW is housed in a 5 mm × 5 mm QFN32 package with 0.5 mm pitch and exposed die pad (AGND-connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RFIN_LB (Pin 1) | Low-band LNA input | RF input path for 310–477 MHz; requires DC path to ground via matching shunt inductor |
| RFIN_HB (Pin 2) | High-band LNA input | RF input path for 836–928 MHz; used instead of RFIN_LB in 868/915 MHz applications |
| SPDT_ANT (Pin 4) | Antenna interface | 50 Ω bidirectional port for RX/TX; integrates SPDT switch to eliminate external RF switch |
| ANT_TUNE (Pin 5) | Antenna tuning control | Analog input driving internal variable capacitor for automatic loop antenna resonance calibration |
| RFOUT (Pin 7) | PA output | Power amplifier RF output; matched to SPDT_TX pin; requires external LC network for antenna coupling |
| VS_PA (Pin 8) | PA supply regulator output | Internal LDO delivering 2.7–3.3 V to PA in 5 V systems; requires local decoupling capacitor |
| PB6 (Pin 28) | EVENT signal | Firmware-configurable open-drain flag indicating RX buffer full, valid telegram, or polling completion |
| PC1–PC5 (Pins 15–19) | NPWRON inputs | Active-low wake-up pins with internal 50 kΩ pull-ups; enable autonomous OFFMode exit without host MCU |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent RX data paths | Enables concurrent monitoring of two distinct modulation/data rate channels (e.g., RKE + TPMS) without host intervention |
| Autonomous 5-channel polling | Configurable in EEPROM to scan up to three RKE + one TPMS + one RS channel; no firmware update needed per application change |
| Automatic antenna tuning | Compensates for hand-effect or component drift in PCB loop antennas by dynamically adjusting internal varactor on ANT_TUNE pin |
| Digital RSSI with ±1 dB accuracy | Digitized IF processing eliminates analog gain variation errors - enables reliable signal strength-based channel selection |
| Integrated SPDT switch | Eliminates need for external TX/RX RF switch; reduces BOM cost and layout complexity in compact key fob designs |
| Pattern-based wake-up & ID scanning | Filters incoming telegrams using up to 18 configurable IDs (1–4 bytes); wakes host MCU only on match - cuts system average current |
Applications
| Remote Keyless Entry (RKE) | Passive Entry Go (PEG) |
|---|---|
Use Scenario: Battery-powered key fob transmitting encrypted door unlock commands to vehicle receiver. IC Role / Device Role / Timing Role: Full transceiver handling ASK/FSK modulation, preamble detection, CRC validation, and autonomous 3-channel polling during button press. Use Value: 5 nA OFFMode current extends lithium CR2032 battery life beyond 10 years; integrated AVR executes secure rolling code generation in Flash without host MCU. |
Use Scenario: Key fob enabling hands-free vehicle access when approaching door handle. IC Role / Device Role / Timing Role: Low-power wake-up receiver scanning for LF challenge signals, then initiating UHF response with encrypted payload. Use Value: Dual RX paths allow simultaneous LF-triggered wake-up and UHF response transmission; automatic antenna tuning maintains link budget despite hand proximity. |
| Tire Pressure Monitoring System (TPMS) | Remote Start System (RS) |
Use Scenario: Wheel-mounted sensor transmitting pressure/temperature data at low duty cycle. IC Role / Device Role / Timing Role: Ultra-low-power transceiver operating in PollingMode(RC) with 50 ms RX burst every 30 seconds; validates ID before buffering data. Use Value: –112 dBm sensitivity at 5 kbit/s ensures reliable reception in metal-wheel RF shadowing; 512-byte EEPROM stores unique sensor ID and calibration offsets. |
Use Scenario: Vehicle-side module receiving encrypted remote start command from key fob or smartphone accessory. IC Role / Device Role / Timing Role: Standalone receiver in IDLEMode(XTO) with crystal-locked timing; triggers IRQ on valid telegram and buffers payload for host MCU retrieval. Use Value: High image rejection (55 dB @ 315/433 MHz) prevents false triggers from nearby RF sources; 6 KB Flash hosts custom authentication stack. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar UHF transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATA5780-PNQW | Pin-compatible UHF receiver only; identical RX performance but no TX path or Flash memory | Limited to receive-only use cases (e.g., vehicle-side RKE receiver without key fob transmit) | Select when TX capability and autonomous firmware execution are unnecessary - reduces cost and code complexity |
| MAX1473ETJ+ | 315/433 MHz ASK receiver only; no FSK, no MCU, no EEPROM, no antenna tuning | Requires external microcontroller for all protocol handling and wake-up logic | Select for simple, low-cost ASK-only receivers where ultra-low OFFMode current and multi-channel polling are not required |
Compared with ATA5830-PNQW, ATA5780-PNQW removes TX functionality and Flash programmability while retaining identical RX sensitivity and pinout - making it suitable for cost-sensitive receive-only nodes. MAX1473ETJ+ lacks integrated MCU, EEPROM, and antenna tuning, demanding more external components and firmware effort for equivalent system-level functionality.
Availability
ATA5830-PNQW is available at Aetrix Electronics and suitable for automotive RKE, TPMS, and PEG systems requiring stable component supply, long-term lifecycle assurance, and compliance with EN 300 220 and FCC Part 15.
Supply support for ATA5830-PNQW 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
Microchip Technology acquired Atmel in 2016 and continues to support, manufacture, and qualify the ATA5830 product line for automotive and industrial wireless applications.
The ATA5830-PNQW belongs to Microchip's UHF transceiver family designed specifically for battery-operated automotive remote controls and telemetry systems - emphasizing ultra-low-power operation, autonomous multi-channel polling, and integrated firmware extensibility.
FAQ
What is the primary function of the ATA5830-PNQW in automotive systems?
The ATA5830-PNQW serves as a fully integrated UHF ASK/FSK transceiver with embedded AVR microcontroller, enabling autonomous remote keyless entry, passive entry go, tire pressure monitoring, and remote start functions. Its dual RX paths, 5 nA OFFMode current, and EEPROM-stored configuration allow it to operate independently of a host MCU in key fobs and sensors - reducing system power and complexity while maintaining EN 300 220/FCC compliance. The ATA5830-PNQW handles modulation, demodulation, ID scanning, and antenna tuning internally.
Does the ATA5830-PNQW support both ASK and FSK modulation?
Yes, the ATA5830-PNQW supports both ASK and FSK modulation with programmable parameters. FSK deviation is adjustable from ±0.375 kHz to ±93 kHz, and ASK sensitivity reaches –107 dBm at 20 kbit/s. Manchester coding is supported for both modulations, and the device includes dedicated baseband processing for each - allowing simultaneous configuration of two independent receive paths with different modulation types. This dual-modulation capability makes the ATA5830-PNQW suitable for interoperability across legacy ASK and modern FSK-based automotive protocols.
How does the ATA5830-PNQW achieve ultra-low OFFMode current?
The ATA5830-PNQW achieves typical OFFMode current of 5 nA through complete internal circuit isolation: DVCC, AVCC, and VS_PA supplies are disconnected, the AVR core and oscillators are halted, and all I/O pins enter high-impedance state with controlled biasing on NPWRON pins. Only the power management circuitry remains active to monitor PC1–PC5 and PB4 for wake-up events. This architecture - verified in the datasheet at 3.6 V and 85°C - enables >10-year battery life in lithium-powered key fobs. The ATA5830-PNQW maintains this spec without external circuitry or special PCB layout.
Can the ATA5830-PNQW operate without an external microcontroller?
Yes, the ATA5830-PNQW can operate autonomously using its integrated 8-bit AVR CPU, 24 KB ROM firmware, and 6 KB Flash memory. In standalone mode, it executes polling, ID scanning, wake-up pattern matching, and antenna tuning without host intervention - triggered only by NPWRON pin events or timer-based schedules stored in EEPROM. Application software in Flash can extend functionality (e.g., custom SPI commands or one-wire interface). The ATA5830-PNQW is designed for this use case: Figure 1-3 in the datasheet shows a complete 3V key fob with no external MCU.
What is the role of the ANT_TUNE pin on the ATA5830-PNQW?
The ANT_TUNE pin on the ATA5830-PNQW drives an internal variable capacitor to dynamically adjust the resonant frequency of a PCB loop antenna during TX mode - compensating for detuning caused by hand proximity ("hand effect") or component tolerances. It operates under firmware control and requires no external components. When used, the loop antenna impedance is transformed to 50 Ω using two external capacitors and the internal varactor, eliminating manual calibration. In 5 V applications or when using SAW filters, ANT_TUNE must be left open - confirming that its use is optional and application-specific. The ATA5830-PNQW documentation confirms this behavior across all supported bands.
ATA5830-PNQW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- TxRx + MCU
- RF Family/Standard:
- General ISM < 1GHz
- Protocol:
- -
- Modulation:
- ASK, FSK
- Frequency:
- 315MHz, 434MHz, 868MHz, 915MHz
- Data Rate (Max):
- 80kbps
- Power - Output:
- 14.5dBm
- Sensitivity:
- -121dBm
- Memory Size:
- 6kB Flash, 512B EEPROM, 24kB ROM, 768B SRAM
- Serial Interfaces:
- SPI
- GPIO:
- -
- Voltage - Supply:
- 1.9V ~ 3.6V
- Current - Receiving:
- 9.3mA
- Current - Transmitting:
- 9.1mA ~ 13.8mA
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 32-QFN (5x5)
ATA5830-PNQW FAQ
1.How can I place an order for ATA5830-PNQW through Aetrix?
Please submit a Request for Quotation (RFQ) for ATA5830-PNQW 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 ATA5830-PNQW reliable?
The price and inventory of ATA5830-PNQW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATA5830-PNQW is usually 5 days.
3.What payment methods are accepted for ATA5830-PNQW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATA5830-PNQW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATA5830-PNQW?
ATA5830-PNQW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATA5830-PNQW 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 ATA5830-PNQW?
For technical support, including ATA5830-PNQW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATA5830-PNQW requirements.
6.How does Aetrix verify that ATA5830-PNQW is sourced from the original manufacturer or authorized distributors?
All ATA5830-PNQW 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 ATA5830-PNQW meets industry standards.
7.What is the process for return or replacement of ATA5830-PNQW?
All ATA5830-PNQW units undergo pre-shipment inspection (PSI). If there is an issue with ATA5830-PNQW, 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 ATA5830-PNQW part is unused and in its original packaging.
Return procedure for ATA5830-PNQW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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