SKY73085-11

390 – 500 MHz High Gain and Linearity Diversity Downconversion Mixer for 2G/3G Base Station Transceiver Applications

Please note: SKY73085-11 is being discontinued and is not recommended for new designs.

Please note: SKY73085-11 is being discontinued and is not recommended for new designs.

The SKY73085-11 is a fully integrated diversity mixer that includes Local Oscillator (LO) drivers, an LO switch, high linearity mixers, and large dynamic range Intermediate Frequency (IF) amplifiers. Low loss RF baluns have also been included to reduce design complications and lower system cost.

The SKY73085-11 features an input IP3 of 24.9 dBm and a Noise Figure (NF) of 9.3 dB, making the device an ideal solution for high dynamic range systems such as 2G/3G base station receivers. The LO switch provides more than 60 dB of isolation between LO inputs and supports the switching time required for GSM/EDGE base stations.

The SKY73085-11 is manufactured using a robust silicon BiCMOS process and has been designed for optimum long-term reliability. The SKY73085-11 diversity downconversion mixer is provided in a compact, 36-pin Multi-Chip Module (MCM). A functional block diagram is shown in Figure 1. The pin configuration and package are shown in Figure 2. Signal pin assignments and functional pin descriptions are provided in Table 1.

Data Sheets

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Specifications

Product LifecycleLast Time Buy

RF Frequency (MHz)390-500

IF Frequency (MHz)40-250

Gain (dB) 9.3

OIP3 (dBm)35.2

IIP3 (dBm)24.9

I_{P1 dB} (dBm)12.9

NF (dB)9.3

PackageMCM, 36-pin

Package (mm)6 x 6 x 1.1

Features

Operating frequency range: 390 to 500 MHz
IF frequency range: 50 to 250 MHz
Conversion gain: 9.3 dB
Input IP3: 24.9 dBm
Output IP3: 34.2 dBm
Noise figure: 9.3 dB
Integrated LO drivers
Integrated low loss RF baluns
High linearity IF amplifiers
On-chip SPDT LO switch (greater than 60 dB LO-to-LO isolation)
Small, MCM (36-pin, 6 x 6 mm) Pb-free package (MSL3, 260 °C per JEDEC J-STD-020)

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