SANTA CLARA — Aldon Smith hasn't had a sack for the past four games but 49ers defensive coordinator Vic Fangio is not concerned.
"I don't look at it as a drought," Fangio said Thursday. "You guys were at the game last week. The guy (Packers quarterback Aaron Rodgers) was throwing the ball extremely fast."
Smith racked up a franchise-record 19½ sacks through the first 13 games and finished second in the league behind the Houston Texans' J.J. Watt.
"Teams have respect for our rush and throw it quick," Fangio added. "It's not always stats. Don't look at your play-by-play and make your conclusion. Watch the game."
In their next game, the second-seeded 49ers (12-4-1) will visit the top-seeded Atlanta Falcons (14-3) at noon Sunday for the right to reach Super Bowl XLVII.
The 49ers are seeking their sixth Super Bowl title, and their first road playoff win since claiming a Super Bowl berth Jan. 8, 1989 at Chicago. The Falcons have reached the Super Bowl only once, when their 1998 team fell 34-19 to the Denver Broncos.
In Saturday's 45-31 win over the Green Bay Packers, the 49ers welcomed Justin Smith back from a two-game absence related to a torn triceps tendon. Fangio said Smith and Aldon Smith teamed up well on the right side of the line in their reunion, noting: "They played well and did a good job for us."
Regarding Aldon Smith's recent outings, Justin Smith said: "He demanding a lot of extra attention. If you don't study tape, there's a lot of attention over there and rightly so. The guy's a beast over there. You're not just going to let him go one-on-one."