CA3509M4-C2B

Overview

The CA3509M4-C2B is an L-to-S band low noise amplifier IC manufactured by CEL. It operates at a typical frequency of 1.575 GHz with a supply voltage of 3.0 V and current consumption of 15 mA. The device provides a typical power gain of 17.0 dB and a noise figure of 0.40 dB. Key electrical parameters include an input third-order intercept point (IIP3) of +4.5 dBm and an output power at 1 dB compression point of 12.0 dBm. It is housed in a flat-lead 4-pin thin-type super minimold package.

Feature Summary

• Integrated on-chip bias supply circuit for simplified design
• Built-in ESD protection diode for enhanced reliability
• 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 C2B to confirm the embossed tape and reel packaging format. Ensure compliance with local regulations regarding gallium arsenide content during disposal. Confirm that the operating temperature range aligns with system requirements before finalizing procurement orders.

Selection Notes

Select this component for applications requiring minimal noise contribution in the L-band spectrum. Verify that the 3.0 V supply voltage matches the system architecture. Consider the 4-pin surface mount package dimensions for PCB layout constraints. Evaluate the IIP3 specification against expected interference levels in the target environment.

Part Context

This part belongs to the CA35 series of low noise amplifiers from CEL. It serves as a critical front-end component for satellite navigation receivers. The device replaces older variants like the CE3509M4 while maintaining similar functional characteristics within the L-to-S band frequency range.

Replacement Considerations

No official substitutes are listed in the datasheet. When evaluating alternatives, ensure comparable noise figure and gain specifications at 1.575 GHz. Verify pin compatibility and package dimensions to facilitate direct replacement without redesigning the host circuit board.

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 CA3509M4 features an on-chip bias supply circuit.

What is the typical noise figure at the standard test condition?

The typical noise figure is 0.40 dB when measured at Vdd=3.0V, Idd=15mA, and f=1.575GHz.