ver: 1.0 nov 12, 2010 tel: 886-3-5788833 http://www.gmt.com.tw 1 G1901 global mixed-mode technology inc. 2.4w mono class-d audio amplifier with shutdown mode features ? depop circuitry integrated ? 2.8v to 5.5v operation ? output power at 1% thd+n, vdd=5v --2w (typical) into a 4 load --1.2w (typical) into a 8 load ? mono bridge-tied load (btl) ? shutdown control available ? msop-10 (fd), tdfn3x3-10 and wlcsp3x3-9 package available applications ? pdas ? mobile phone ? portable devices ? notebook general description the G1901 is a mono class-d audio power amplifier in msop-10 (fd), tdfn3x3-10 and wlcsp3x3-9 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 applications, the shdn mode is sup- ported to disable the G1901 when it is idle. the cur- rent consumption can be further reduced to below 1 a. giving the shutdown pin low level will drive the G1901 entering the shutdown. ordering information order number marking temp. range package (green) G1901f61u G1901 - 40 c to +85 c msop-10 (fd) G1901re1u 1901 - 40 c to +85 c tdfn3x3-10 G1901b91u 1901 - 40 c to +85 c wlcsp3x3-9 note:f6: msop-10 (fd) re: tdfn3x3-10 b9: wlcsp3x3-9 1: bonding code u: tape & reel pin configuration pvdd vo- pgnd vo+ shutdown note: recommend connecting the thermal pad to the ground for excellent power dissipation. 10 8 7 1 2 3 4 in+ gnd vdd nc msop-10 (fd) G1901 9 6 5in- thermal pad tdfn3x3-10 4 G1901 1 2 3 8 7 6 5 9 10 4 1 2 3 8 7 6 5 9 10 thermal pad pvdd vo- pgnd vo+ shutdown in+ gnd vdd nc in- G1901 bottom view wlcsp3x3-9 a3 a2 a1 b3 c3 b2 b1 c2 c1 vo- gnd in+ pgnd pvdd vdd vo+ shutdown in- pvdd vo- pgnd vo+ shutdown pvdd vo- pgnd vo+ shutdown note: recommend connecting the thermal pad to the ground for excellent power dissipation. 10 8 7 1 2 3 4 in+ gnd vdd nc msop-10 (fd) G1901 9 6 5in- thermal pad tdfn3x3-10 4 G1901 1 2 3 8 7 6 5 9 10 4 1 2 3 8 7 6 5 9 10 thermal pad pvdd vo- pgnd vo+ shutdown in+ gnd vdd nc in- G1901 bottom view wlcsp3x3-9 a3 a2 a1 b3 c3 b2 b1 c2 c1 vo- gnd in+ pgnd pvdd vdd vo+ shutdown in-
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