Alternatives to CML Micro CMX994EQ4
CML Micro CMX994EQ4 and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 CMX994EQ4CML Micro | CMX994EFQ4CML Micro | LTC5584IUF#PBFAnalog Devices Inc. | |
|---|---|---|---|
| FFF Compatibility | Utilizes the identical 40-pin VQFN (6x6mm) package with the exact same pinout mapping and pad connection.The physical package, dimensions, footprint, and mounting style are identical to the original device.Meets or exceeds all electrical parameters, providing the same direct-conversion architecture with improved transient response and lower power. | Comes in a smaller 24-QFN (4x4mm) package, which requires a complete schematic and layout redesign.The physical dimensions and pin count are entirely different from the 40-VQFN (6x6mm) of the original part.While it functions as a high-performance I/Q demodulator, it does not integrate the LNA, baseband filters, or LO synthesizer/PLL/VCO present in the CMX994EQ4. | |
 AI Summary | CMX994EQ4 by CML Micro: - RF Receiver 50MHz ~ 1.218GHz -116dBm 19.2kbps PCB, Surface Mount 40-VQFN (6x6). | The CMX994EFQ4 is the official manufacturer-designated direct replacement for the obsolete CMX994EQ4. It is fully pin-to-pin compatible and offers an active lifecycle status, solving end-of-life concerns. It incorporates all features of the enhanced 'E' version while improving transient responses and power efficiency.
| The LTC5584IUF#PBF is a high-performance, active I/Q demodulator from Analog Devices that covers the frequency range of the original part. However, it is a non-drop-in alternative that requires a full board redesign. It lacks the integrated LNA, baseband filters, and synthesizer present on the CMX994, which must be implemented with external circuitry.
|
| Lifecycle Status | Last time buy | Active | Unknown |
| Market Availability | In stock | Non-stock | Unknown |
| REACH | REACH | Unknown | Unknown |
| RoHS | RoHS | Unknown | Unknown |
| Description | - RF Receiver 50MHz ~ 1.218GHz -116dBm 19.2kbps PCB, Surface Mount 40-VQFN (6x6) | RF IC Synthesizer, VCO General Purpose 100MHz ~ 1GHz Down Converter 40-VQFN (6x6) | The LTC5584IUF#PBF is a high-performance, active I/Q demodulator from Analog Devices that covers the frequency range of the original part. H |
| Manufacturer | CML Micro | CML Micro | Analog Devices Inc. |
| Type | RF Receivers | RF Misc ICs and Modules | Component |
| Datasheet | Open | Open | N/A |
| Lead Time | 18 weeks | 9 weeks | Unknown |
| Country of Origin | - | - | - |
| Export Control Class Number | 5A991G | 5A991G | EAR99 |
| HTSUS Code | 8542.39.0070 | - | - |
| Moisture Sensitivity Level | 3 (168 Hours) | - | - |
| Features | LNA with gain control, Integer-N PLL, VCO negative resistance amplifier, configurable bandwidth baseband filter | - | - |
| Sensitivity | -116dBm | - | - |
| Applications | Analogue/digital multi-mode radio, Software Defined Radio (SDR), Data telemetry modems, Satellite communications | - | - |
| Mounting Type | Surface Mount | - | - |
| Data Interface | C-BUS | - | - |
| Package / Case | 40-VFQFN Exposed Pad | - | - |
| Data Rate (Max) | 19.2kbps | - | - |
| Antenna Connector | PCB, Surface Mount | - | - |
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Frequently asked questions
The CML Micro CMX994EQ4 is in its last-time-buy phase — the manufacturer has announced end-of-life and is taking final orders only. If you need ongoing supply, the alternatives on this page are active replacements.
The closest qualified second sources for the CML Micro CMX994EQ4 are the CMX994EFQ4 (CML Micro) and the LTC5584IUF#PBF (Analog Devices Inc.). Each is compared against the original on fit, form and function in the table above.
Not always. The alternatives to the CMX994EQ4 are matched on function but can differ in package, pinout or a key parameter, so review the fit/form/function notes in the table and the datasheet before designing one in.
The CMX994EQ4 (CML Micro) is a part in the RF Receivers category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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