ver: 1.3 apr 29, 2009 tel: 886-3-5788833 http://www.gmt.com.tw 1 g1453/G1453L global mixed-mode technology inc. 2.6w stereo audio amplifier with shutdown mode features ? depop circuitry integrated ? 3v to 5.5v operation ? output power at 10% thd+n, vdd=5v --2.6w (typical) into a 3 load ? output power at 1% thd+n, vdd=5v --2w (typical) into a 4 load --1.3w (typical) into a 8 load ? stereo bridge-tied load (btl) ? shutdown control available ? tqfn3x3-16 package available applications ? pdas ? portable devices ? notebook general description the g1453/G1453L is a stereo audio power amplifier in 16 pin tqfn3x3-16 with thermal pad package. it can drive 2w continuous rms power into 4 load in bridge-tied load (btl) mode at 5v supply voltage. its thd is smaller than 1% under the above operation condition. for the low current consumption applica- tions, the shutdown mode is supported to disable the g1453/G1453L when it is idle. the current con- sumption can be further reduced to below 1 a. giving the shutdown pin low level will drive the G1453L entering the shutdown. giving the shutdown pin high level will drive the g1453 entering the shutdown ordering information order number marking temp. range package (green) g1453r41u 1453 - 40 c to +85 c tqfn3x3-16 G1453Lr41u 1453l - 40 c to +85 c tqfn3x3-16 note: r4: tqfn3x3-16 1: bonding code u: tape & reel pin configuration g1453 tqfn3x3-16 rin- 1 2 3 4 12 11 10 9 rvo1 vcc vss rvo2 16 15 14 13 rin+ bypass nc thermal pad shutdown nc lin- lin+ lvo1 vcc vss lvo2 5 6 7 8 G1453L tqfn3x3-16 rin- 1 2 3 4 12 11 10 9 rvo1 vcc vss rvo2 16 15 14 13 rin+ bypass nc thermal pad shutdown nc lin- lin+ lvo1 vcc vss lvo2 5 6 7 8 note: recommend connecting the thermal pad to the ground for excellent power dissipation. g1453 tqfn3x3-16 rin- 1 2 3 4 12 11 10 9 rvo1 vcc vss rvo2 16 15 14 13 rin+ bypass nc thermal pad shutdown nc lin- lin+ lvo1 vcc vss lvo2 5 6 7 8 G1453L tqfn3x3-16 rin- 1 2 3 4 12 11 10 9 rvo1 vcc vss rvo2 16 15 14 13 rin+ bypass nc thermal pad shutdown nc lin- lin+ lvo1 vcc vss lvo2 5 6 7 8 g1453 tqfn3x3-16 rin- 1 2 3 4 12 11 10 9 rvo1 vcc vss rvo2 16 15 14 13 rin+ bypass nc thermal pad shutdown nc lin- lin+ lvo1 vcc vss lvo2 5 6 7 8 G1453L tqfn3x3-16 rin- 1 2 3 4 12 11 10 9 rvo1 vcc vss rvo2 16 15 14 13 rin+ bypass nc thermal pad shutdown nc lin- lin+ lvo1 vcc vss lvo2 5 6 7 8 note: recommend connecting the thermal pad to the ground for excellent power dissipation.
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