TRF1020

GSM RECEIVER

SLWS028B – MAY 1998 – REVISED SEPTEMBER 1998

1

POST OFFICE BOX 655303

Flat Package (PQFP)

(GSM), Class 3, 4, or 5 Mobile Station (MS)

Portable Cellular Telephone Applications

I and Q Baseband on a Single Chip

Amplifiers (LNA), Mixers, Intermediate

Frequency (IF) Amplifiers, and

Voltage-Controlled Oscillator (VCO)

Amplifiers

Required

Single-Conversion Configurations

description

The TRF1020 is a single-chip radio frequency (RF) downconverter suitable for 900-MHz GSM applications. It

combines in one small package an LNA, an RF mixer, an IF mixer, two IF amplifiers, an I and Q mixer, and one

buffered VCO. The TRF1020 requires few external components.

The LNA has a nominal gain of 12.4 dB and noise figure of 2.1 dB. The first RF mixer has a conversion gain

of 13.4 dB and a single-sideband (SSB) noise figure of 8.3 dB. The IF amplifiers have combined variable gain

from 0 to 84 dB in approximately 3-dB steps. The IF amplifier frequency range is 40 to 180 MHz for the first IF

amplifier and 10 to 180 MHz for the second IF amplifier. The local oscillator of the I and Q mixer operates at four

times the last frequency of the IF mixer.

Power consumption is kept to a minimum and can be further reduced by dynamically placing selected functions

in standby power-down mode when not required. Power-down control is provided through the three-line digital

serial interface.

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the gates.

Copyright

© 1998, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.