F1451中文资料TX Digital VGA 450MHz to 1100MHz数据手册Renesas规格书

描述 Description

The F1451 is a High-Gain/High-Linearity 450MHz to 1100MHz TX Variable Gain Amplifier used in transmitter applications. The F1451 TX VGA provides 32dB maximum gain with +41dBm OIP3 and 3.6dB noise figure. Up to 29.5dB gain control is achieved using the combination of a digital step attenuator (DSA) plus KLIN™ RF variable gain amplifier gain adjustment. This device uses a single 5V supply and 185mA of ICC. This device is packaged in a 6 × 6 mm, 28-QFN with 50Ω single-ended RF input and RF output impedances for ease of integration into the signal path.

特性 Features

• Broadband 450MHz to 1100MHz
• 32dB max gain
• 3.6dB NF at max gain (900MHz)
• 29.5dB total gain control range, 0.5dB step
• < 2dB overshoot between major gain transitions 
• +41dBm OIP3
• Maintains +23dBm output P1dB over 13dB gain adjustment range
• SPI interface for DSA control
• Single 5V supply voltage
• ICC = 185mA
• Up to +105°C TCASE operating temperature
• 50Ω input and output impedance
• Standby for power savings
• Pin compatible 1400–2300 MHz and 2100–2950 MHz versions
• 6 × 6 mm, 28-QFN package