The F1456 is a High Gain / High Linearity 1500MHz

to 2950MHz TX Digital Variable Gain Amplifier used

in transmitter applications.

The F1456 TX DVGA provides 32.1dB maximum

gain with +38dBm OIP3 and 3.9 dB noise figure. Up

to 31.5dB gain control is achieved using the

combination of a digital step attenuator (DSA) and a

KLINTM RF Digital Gain Amplifier. This device uses

a single 5V supply and 215mA of ICC.

This device is packaged in a 6 mm x 6 mm, 28-

VFQFPN with 50Ω single-ended RF input and RF

output impedances for ease of integration into the

signal-path.

Features

■ Broadband 1500MHz to 2950MHz

■ 32.1dB maximum gain

■ 3.9dB NF at maximum gain (2650MHz)

■ 31.5dB total gain control range, 0.5 dB step

■ < 2dB overshoot between gain transitions

■ Maintains flat +21.5dBm OP1dB for more than

13dB gain adjustment range

■ Maintains flat +38dBm OIP3 for more than 15dB

gain adjustment range

■ SPI interface for DSA control

■ Single 5V supply voltage

■ ICC = 215mA

■ Up to +105°C TCASE operating temperature

■ 50Ω input and output impedance

■ Standby mode for power savings

■ Pin compatible 700MHz and 2100MHz versions

■ 6 x 6 mm, 28-VFQFPN package