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Global Mixed-mode Technology Inc.
G1901
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 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
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 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 sup-
ported to disable the G1901 when it is idle. The cur-
rent consumption can be further reduced to below
1µA.
Giving the SHUTDOWN pin low level will drive the
G1901 entering the shutdown.
Ordering Information
ORDER
NUMBER
G1901F61U
G1901RE1U
G1901B91U
Note:F6: MSOP-10 (FD)
1: Bonding Code
U: Tape & Reel
MARKING
G1901
1901
1901
RE: TDFN3X3-10 B9: WLCSP3X3-9
TEMP.
RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PACKAGE
(Green)
MSOP-10 (FD)
TDFN3X3-10
WLCSP3X3-9
Pin Configuration
G1901
G1901
VO- 1
PGND 2
PVDD 3
VO+ 4
SHUTDOWN 5
Thermal
Pad
10 IN+
9 GND
8 VDD
7 NC
6 IN-
VO- 1
PGND 2
PVDD 3
VO+ 4
SHUTDOWN 5
Thermal
Pad
10 IN+
9 GND
8 VDD
7 NC
6 IN-
MSOP-10 (FD)
TDFN3X3-10
Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation.
G1901
A3 A2 A1
VO- GND IN+
B3
PGND
B2
PVDD
B1
VDD
C3
VO+
C2
SHUTDOWN
C1
IN-
Bottom View
WLCSP3X3-9
Ver: 1.0
Nov 12, 2010
TEL: 886-3-5788833
http://www.gmt.com.tw
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