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