50MHz to 1000MHz, High-Linearity, Serial/Analog-Controlled VGA

The MAX2064 high-linearity, dual analog variable-gain amplifier (VGA) operates in the 50MHz to 1000MHz frequency range. Each analog attenuator is controlled using an external voltage, or through the SPI-compatible interface using an on-chip 8-bit DAC.

Since each of the stages has its own external RF input and RF output, this component can be configured to either optimize noise figure (NF) (amplifier configured first) or OIP3 (amplifier last). The device's performance features include 24dB amplifier gain (amplifier only), 4.4dB NF at maximum gain (includes attenuator insertion losses), and a high OIP3 level of +41dBm. Each of these features makes the device an ideal VGA for multipath receiver and transmitter applications.

In addition, the device operates from a single +5V supply with full performance, or a +3.3V supply for an enhanced power-savings mode with lower performance. The device is available in a compact 48-pin TQFN package (7mm x 7mm) with an exposed pad. Electrical performance is guaranteed over the extended temperature range, from TC = -40°C to +85°C.

Applications

* Fixed Broadband Wireless Access * GSM 850/GSM 900 EDGE Base Stations * IF and RF Gain Stages * Temperature-Compensation Circuits * WCDMA, TD-SCDMA, and cdma2000® Base Stations * WiMAX®, LTE, and TD-LTE Base Stations and Customer-Premise Equipment * Wireless Local Loop

* Independently Controlled Dual Paths

* 50MHz to 1000MHz RF Frequency Range

* Pin-Compatible Family Includes

* MAX2062 (Analog/Digital VGA)

* MAX2063 (Digital-Only VGA)

* 22dB (typ) Maximum Gain

* 0.19dB Gain Flatness Over 100MHz Bandwidth

* 33dB Gain Range

* 49dB Path Isolation (at 200MHz)

* Built-In 8-Bit DACs for Analog Attenuation Control

* Excellent Linearity at 200MHz (Configured with Amp Last)

* +41dBm OIP3

* +59dBm OIP2

* +19dBm Output 1dB Compression Point

* 4.4dB Typical Noise Figure (at 200MHz)

* Single +5V Supply (or +3.3V Operation)

* Amplifier Power-Down Mode for TDD Applications