AD8344ACPZ-WP

有源接收混频器400 MHz到1.2 GHz的 Active Receive Mixer 400 MHz to 1.2 GHz

Product Details

The AD8344 is a high performance, broadband active mixer. It is well suited for demanding receive-channel applications that require wide bandwidth on all ports and very low intermodulation distortion and noise figure.

The AD8344 provides a typical conversion gain of 4.5 dB at 890 MHz. The integrated LO driver supports a 50 Ω input impedance with a low LO drive level, helping to minimize external component count.

The single-ended 50 Ω broadband RF port allows for easy interfacing to both active devices and passive filters. The RF input accepts input signals as large as 1.7 V p-p or 8.5 dBm re: 50 Ω at P1dB.

The open-collector differential outputs provide excellent balance and can be used with a differential filter or IF amplifier, such as the AD8369 or AD8351. These outputs may also be converted to a single-ended signal through the use of a matching network or a transformer balun.When centered on the VPOS supply voltage, each of the differential outputs may swing 2.5 V p-p.

The AD8344 is fabricated on an Analog Devices proprietary, high performance SiGe IC process. The AD8344 is available in a 16-lead LFCSP package. It operates over a −40°C to +85°C temperature range.An evaluation board is also available.

**Applications**

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Cellular base station receivers

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ISM receivers

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Radio links

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RF Instrumentation

### Features and Benefits

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Broadband RF port: 400 MHz to 1.2 GHz

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Conversion gain: 4.5 dB

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Noise figure: 10.5 dB

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Input IP3: 24 dBm

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Input P1dB: 8.5 dBm

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LO drive: 0 dBm

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External control of mixer bias for low power operation

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Single-ended, 50 Ω RF and LO input ports

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Single-supply operation: 5 V @ 84 mA

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Power-down mode

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Exposed paddle LFCSP: 3 mm × 3 mm