CA3509M4

Overview

The CA3509M4 is an L-to-S band low noise amplifier IC designed for RF signal processing. It operates at a center frequency of 1.575 GHz with a typical power gain of 17.0 dB and a noise figure of 0.40 dB. The device requires a supply voltage of 3.0 V and draws a typical current of 15.0 mA. Key performance metrics include an output power at 1 dB compression point of 12.0 dBm and an input third-order intercept point of +4.5 dBm. It is housed in a flat-lead 4-pin thin-type super minimold package.

Feature Summary

• Integrated on-chip bias supply circuit
• Built-in ESD protection diode
• Optimized for low noise figure and high associated gain

Applications

• Global Navigation Satellite Systems (GNSS) including GPS, GLONASS, Beidou, and Galileo
• Satellite Radio antenna systems such as SDARS and DMB
• Microwave communication links

Procurement Notes

Verify the specific ordering suffix when purchasing. The base part number CA3509M4 corresponds to bulk packaging, while the suffix -C2B indicates embossed tape and reel delivery containing 5,000 pieces per reel. Confirm the required supply form matches the project assembly needs before placing orders.

Selection Notes

Select this component for applications requiring minimal signal degradation in the L-band spectrum. Ensure the design accommodates a 3.0 V supply rail and manages thermal dissipation within the specified operating temperature range of -45°C to +85°C. Verify that the system architecture supports the required impedance matching for optimal gain and noise performance.

Part Context

This component belongs to the CA35 series of low noise amplifiers manufactured by CEL. It serves as a direct successor to the previously designated CE3509M4 model, maintaining identical electrical characteristics and pinout configurations while updating the manufacturer's part numbering convention.

Replacement Considerations

The CA3509M4 replaces the legacy CE3509M4 designation. No other official cross-references are documented. When substituting, ensure the alternative device supports the 1.575 GHz frequency and compatible 4-pin SMD footprint.

FAQ

What is the maximum RF input power rating?

The absolute maximum RF input power rating is +13 dBm.

Does the device include internal biasing components?

Yes, the IC features an integrated on-chip bias supply circuit.

What is the typical supply current consumption?

The typical supply current is 15.0 mA when operated at a 3.0 V supply voltage.