Emmy Award-winning sportscaster Charlie Jones, whose voice is most associated with the NFL and NBC's Summer Olympics coverage, died of a heart attack Thursday at his home in the La Jolla district of San Diego.

He was 77.

Jones started his career at ABC in 1960 broadcasting American Football League games. In 1965, he moved on to NBC, continuing to broadcast the AFL and later the NFL. The distinctive voice continued to work NFL games until 1997, when NBC lost its NFL broadcasting rights to CBS.

During Jones' time at NBC, he also helped broadcast the 1988, 1992 and 1996 Summer Olympics as well as golf and Wimbledon.

He also served as a play-by-play announcer for the Reds (1973, '74) and Colorado Rockies.

"All of us at NBC are saddened at the passing of one of the great pioneers of NBC Sports," said Dick Ebersol, chairman of NBC Sports. "His work in particular on the NFL, golf and the Olympics left a lasting legacy."