General Description
The TQC9311 is a dual-channel, digitally-controlled variable gain amplifier (DVGA) operating over a broadband frequency range of 400 to 3600 MHz. The DVGA features +36.5 dBm OIP3 while providing digital variable gain with 31.5 dB of gain range in 0.5 dB steps through a 12-bit serial mode control interface. This combination of performance parameters makes the DVGA ideal for diversity or MIMO receiver applications requiring gain control with high linearity and low noise figure.
Product Features
• Dual channel, integrating DSA + Amp Functionality
• 0.4 – 3.6 GHz Broadband Performance
• 13.2 dB Gain at 1.95 GHz
• 3.8 dB Noise Figure at max gain setting
• +21.1 dBm P1dB
• +36.5 dBm OIP3
• +5 V Supply Voltage
• Integrated on-chip matching and bias chokes
• 3-wire SPI Control Programming
• +1.8 V and +3.3 V logic compatible serial input
APPLICATIONs
• Wireless Infrastructure
• LTE / WCDMA / CDMA / GSM
• General Purpose Wireless
• Diversity or MIMO Receivers