Analog + Digital VGA

February 1, 2011

Maxim Integrated Products (Sunnyvale, CA) has introduced the MAX2062, a fully programmable, multistate, dual-channel, analog + digital IF/RF variable-gain amplifier (VGA). As with its predecessor, the single-channel MAX2065, the MAX2062 provides unique “rapid-fire” gain selection for four customized attenuation states per path, fast 25ns digital switching, and very low digital VGA amplitude overshoot/undershoot. The MAX2062 also provides the convenience of SPITM control for its two analog attenuators through its on-chip 8-bit DACs. It is an ideal choice for the “fast-attack” automatic gain control (AGC) circuits found in all 2.5G/3G/4G wireless infrastructure transceivers, including GSM/EDGE, CDMA, WCDMA, LTE, and WiMAX® applications. The MAX2062 can serve as either an IF or RF all-purpose VGA, interfacing directly with 50-ohm systems operating over the 50 MHz to 1000 MHz frequency range. The MAX2062 is available in a lead-free, 48-pin TQFN package. Pin-for-pin compatible digital-only (MAX2063) and analog-only (MAX2064) versions are also available.