50 MHz to 500 MHz high linearity Si variable gain amplifier;
28 dB gain range
Rev. 3 — 11 June 2014
Product data sheet
1. Product profile
1.1 General description
The BGA7351 MMIC is a dual independently digitally controlled IF Variable Gain
Amplifier (VGA) operating from 50 MHz to 500 MHz. Each IF VGA amplifies with a gain
range of 28 dB and at its maximum gain setting delivers 16.5 dBm output power at 1 dB
gain compression and a superior linear performance.
The BGA7351 Dual IF VGA is optimized for a differential gain error of less than 0.1 dB
for accurate gain control and has a total integrated gain error of less than 0.3 dB.
Moreover it meets the demanding phase error requirements for GSM. BGA7351 has less
than 3.0 phase error over the full gain range of 28 dB.
The gain controls of each amplifier are separate digital gain-control word, which is
provided externally through two sets of 5 bits.
The BGA7351 is housed in a 32 pins 5 mm 5 mm leadless HVQFN32 package.
1.2 Features and benefits
Dual independent digitally controlled 28 dB gain range VGAs, with 5-bit control
50 MHz to 500 MHz frequency operating range
Gain step size: 1 dB 0.1 dB
22 dB power gain
Fast gain stage switching capability
16.5 dBm output power at 1 dB gain compression
46 dBm third order intercept point
Constant third order intercept point over output power
85 dBc second harmonic level
Excellent noise figure of 6 dB
5 V single supply operation with power-down control
Logic-level shutdown control pin reduces supply current
Excellent ESD protection at all pins
Moisture sensitivity level 1
Excellent differential integrated gain and phase error
Compliant to Directive 2002/95/EC, regarding Restriction of Hazardous Substances