MAX2065 Datasheet | Maxim Integrated

Description The MAX2065 high-linearity, analog/digital variablegain amplifier (VGA) is designed to operate in the 50MHz to 1000MHz frequency range with two independent attenuators (see the Typical Application Circuit). The digital attenuator is controlled as a slave peripheral using either the SPI™-patible interface or a parallel bus with 31d B total adjustment range in 1d B steps. An added feature allows “rapid-fire” gain selection between each of four steps, preprogrammed by the .. user through the SPI-patible interface. The 2-pin control allows the user to quickly access any one of four customized attenuation states without reprogramming the SPI bus. The analog attenuator is controlled using an external voltage or through the SPI-patible interface using an on-chip 8-bit DAC. Because each of the three stages has its own RF input and RF output, this ponent can be configured to either optimize NF (amplifier configured first), OIP3 (amplifier last), or a promise of NF and OIP3. The device’s performance features include 22d B amplifier gain (amplifier only), 6.5d B NF at maximum gain (includes attenuator insertion losses), and a high OIP3 level of +42d Bm. Each of these features makes the MAX2065 an ideal VGA for numerous receiver and transmitter applications. In addition, the MAX2065 operates from a single +5V supply with full performance, or a single +3.3V supply with slightly reduced performance, and has an adjustable bias to trade current consumption for linearity performance. This device is available in a pact 40pin thin QFN package (6mm x 6mm) with an exposed pad. Electrical performance is guaranteed over the extended temperature range (TC = -40°C to +85°C). - Pin-patible Family Includes: MAX2066 (Digital VGA) MAX2067 (Analog VGA) - +19.4d B (Typ) Maximum Gain - 0.5d B Gain Flatness Over 100MHz Bandwidth - 62d B Gain Range (31d B Analog + 31d B Digital) - Built-in DAC for Analog Attenuation Control - Supports Four “Rapid-Fire” Preprogrammed Attenuator States Quickly...