TQ9222 查看數據表（PDF） - TriQuint Semiconductor

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产品描述 (功能)

生产厂家

TQ9222

Dual-Band TDMA LNA/Downconverter IC

TriQuint Semiconductor 

TQ9222

Data Sheet

downconverter was tested with the preselector filter, the

performance improved significantly. The results are shown in

Table 3.

Freq

Temp

Half-IF

(MHz)

(°C)

(dB)

1930

-40

70.30

1940

-40

71.72

1980

+85

72.46

1990

+85

70.21

The preselector filter not only improved the half-IF performance

but also the image rejection up to 70 dB, RF to IF isolation up to

33dB, and LO to IF isolation up to 43dB.

*This is one of many different circuit topologies that could give similar results.

The circuit selected that gives the best performance will depend on the PCB

layout.

Table 3. TQ9222 Performance with Preselector Filter (IF = 110

MHz, PLO = -7 dBm, Vdd = 2.8v)

12

For additional information and latest specifications, see our website: www.triquint.com

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