LMH6522

LMH6522 www.ti.com SNOSB53D – JULY 2011 – REVISED MARCH 2013 LMH6522 High Performance Quad DVGA Check for Samples: LMH6522 FEATURES 1 23 OIP3: 49dBm @ 200MHz Noise Figure: 8.5dB Voltage Gain: 26dB 1dB Gain Steps −3dB Bandwidth of 1400 MHz Gain Step Accuracy: 0.2 dB Disable Function for Each Channel Parallel and Serial Gain Control Low Power Mode for Power Management Flexibility Small Footprint WQFN Package APPLICATIONS Cellular Base Stations Wideband and Narrowband IF Sampling Receivers Wideband Direct Conversion ADC Driver DESCRIPTION The LMH6522 contains four, high performance, digitally controlled variable gain amplifiers (DVGA). It has been designed for use in narrowband and broadband IF sampling applications. Typically, the LMH6522 drives a high performance ADC in a broad range of mixed signal and digital communication applications such as mobile radio and cellular base stations where automatic gain control (AGC) is required to increase system dynamic range. Each channel of LMH6522 has an independent, digitally controlled attenuator and a high linearity, differential output, amplifier. All circuitry has been optimized for low distortion and maximum system design flexibility. Power consumption is managed by a three-state enable pin. Individual channels can be disabled or placed into a Low Power Mode or a higher performance, High Power Mode. The LMH6522 digitally controlled attenuator provides precise 1dB gain steps over a 31dB range. The di...