G1901 Global Mixed-mode Technology Inc. 2.4W Mono Class-D Audio Amplifier with Shutdown Mode Features 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 4Ω 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 supported to disable the G1901 when it is idle. The current consumption can be further reduced to below 1µA. Depop Circuitry Integrated 2.8V to 5.5V Operation Output Power at 1% THD+N, VDD=5V --2W (typical) into a 4Ω Load --1.2W (typical) into a 8Ω Load Mono Bridge-Tied Load (BTL) Shutdown Control Available MSOP-10 (FD), TDFN3X3-10 and WLCSP3X3-9 Package Available Giving the SHUTDOWN pin low level will drive the G1901 entering the shutdown. Applications PDAs Mobile Phone Portable Devices Notebook Ordering Information ORDER NUMBER MARKING TEMP. RANGE PACKAGE (Green) G1901F61U G1901RE1U G1901 1901 -40°C to +85°C -40°C to +85°C MSOP-10 (FD) TDFN3X3-10 1901 -40°C to +85°C WLCSP3X3-9 G1901B91U Note:F6: MSOP-10 (FD) 1: Bonding Code U: Tape & Reel RE: TDFN3X3-10 B9: WLCSP3X3-9 Pin Configuration G1901 G1901 IN+ G1901 VO- 1 10 VO- 1 10 PGND 2 9 GND PGND 2 9 PVDD 3 8 VDD PVDD 3 VO+ 4 7 NC VO+ SHUTDOWN 5 6 IN- SHUTDOWN Thermal Pad MSOP-10 (FD) Thermal Pad IN+ A3 A2 A1 GND VO- GND IN+ 8 VDD 4 7 NC 5 6 IN- B3 B2 B1 PGND PVDD VDD C2 C1 SHUTDOWN IN- C3 TDFN3X3-10 Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation. VO+ Bottom View WLCSP3X3-9 TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.0 Nov 12, 2010 1