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
(USD)		 Quantity
TQ5121
TQ5121
Other

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

Data Sheet
Negotiable 
TQ5122
TQ5122
Triquint Semiconductor Inc
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Data Sheet
1-1500: $1.03
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Data Sheet
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