Product Summary

The TQ5121 is a 3V, RF receiver IC designed specifically for Cellular band TDMA applications. The RF performance meets the requirements of products designed to the IS-136 and AMPS standards. The TQ5121 is pin compatible with TQ9222, which enables handset designers to use strategic board platform strategy. The TQ5121 contains LNA+Mixer circuits to handle the 800MHz cellular band. The mixer uses a high-side LO frequency, with the IF covering a range of 70 to 140MHz. Most RF ports are internally matched to 50 W, greatly simplifying the design and keeping the number of external components to a minimum. The TQ5121 achieves good RF performance with low current consumption, supporting long standby times in portable applications. Coupled with the very small QSOP-16 package, the part is ideally suited for Cellular band mobile phones. Applications of the TQ5121 are: IS-136 Mobile Phones, AMPS Mobile Phones, ISM 900MHz.

Parametrics

TQ5121 absolute maximum ratings: (1)DC Power Supply:5.0 V; (2)Power Dissipation:500 mW; (3)Operating Temperature:-55 to 100℃; (4)Storage Temperature:-60 to 150℃; (5)Signal level on inputs/outputs:+20 dBm; (6)Voltage to any non supply pin:+0.3 V.

Features

TQ5121 features: (1)Pin compatible with TQ9222; (2)Single 3V operation; (3)Low-current operation; (4)50 Ω matched inputs; (5)QSOP-16 plastic package.

Diagrams

TQ5121 test circuit

Image Part No Mfg Description Data Sheet Download Pricing
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TQ5121
TQ5121

Other


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Image Part No Mfg Description Data Sheet Download Pricing
(USD)
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TQ5121
TQ5121

Other


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TQ5122

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Data Sheet

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