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G1431 Dataheets PDF



Part Number G1431
Manufacturers Global Mixed-mode Technology
Logo Global Mixed-mode Technology
Description 2W Stereo Audio Amplifier
Datasheet G1431 DatasheetG1431 Datasheet (PDF)

Global Mixed-mode Technology Inc. G1431 2W Stereo Audio Amplifier Features Internal Gain Control, Which Eliminates External Gain-Setting Resistors „ Depop Circuitry Integrated „ Output Power at 1% THD+N, VDD=5V --2.0W/CH (typical) into a 4Ω Load --1.2W/CH (typical) into a 8Ω Load „ Bridge-Tied Load (BTL) Supported „ Fully differential Input „ Shutdown Control Available www.DataSheet4U.com „ Surface-Mount Power Package 20-Pin TSSOP-P & 20-Pin TQFN 4X4 „ General Description G1431 is a stereo au.

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Global Mixed-mode Technology Inc. G1431 2W Stereo Audio Amplifier Features Internal Gain Control, Which Eliminates External Gain-Setting Resistors „ Depop Circuitry Integrated „ Output Power at 1% THD+N, VDD=5V --2.0W/CH (typical) into a 4Ω Load --1.2W/CH (typical) into a 8Ω Load „ Bridge-Tied Load (BTL) Supported „ Fully differential Input „ Shutdown Control Available www.DataSheet4U.com „ Surface-Mount Power Package 20-Pin TSSOP-P & 20-Pin TQFN 4X4 „ General Description G1431 is a stereo audio power amplifier in 20pin TSSOP thermal pad package or 20-pin TQFN 4X4. It can drive 2W continuous RMS power into 4Ω load per channel in Bridge-Tied Load (BTL) mode at 5V supply voltage. Its THD is smaller than 1% under the above operation condition. To simplify the audio system design in the notebook application and to enlarge the driving power, G1431 supports the Bridge-Tied Load (BTL) mode for driving the speakers. For the low current consumption applications, the SHDN mode is supported to disable G1431 when it is idle. The current consumption can be reduced to 150µA (typically). Amplifier gain is internally configured and controlled by two terminals (GAIN0, GAIN1). BTL gain settings of 6dB, 10dB, 15.6dB, 21.6dB are provided. Applications „ Stereo Power Amplifiers for Notebooks or Desktop Computers „ Multimedia Monitors „ Stereo Power Amplifiers for Portable Audio Systems Ordering Information ORDER MARKING NUMBER G1431F2U G1431R9U G1431 1431 TEMP. RANGE PACKAGE (Pb free) -40°C to +85°C TSSOP-20 (FD) -40°C to +85°C TQFN4X4-20 R9:TQFN4X4-20 Note: F2: TSSOP-20 (FD) U: Tape & Reel Pin Configuration ROUT+ ROUT- PVDD RIN- VDD G1431 GND GAIN0 GAIN1 10 9 NC GND GND BYPASS LIN+ LOUT+ LINPVDD RIN+ LOUTLIN+ 1 2 3 4 5 6 7 8 9 20 19 18 17 GND SHUTDOWN ROUT+ RINVDD PVDD ROUTGND NC GND 13 14 12 SHUTDOWN GND GND GAIN0 GAIN1 16 17 18 19 20 1 2 3 4 5 Thermal Pad 15 11 8 7 6 Thermal Pad 16 15 14 13 12 11 BYPASS 10 LOUT+ LOUT- RIN+ LIN- Top View TSSOP-20 (FD) G1431 TQFN4X4-20 PVDD Ver: 1.5 Oct 25, 2006 TEL: 886-3-5788833 http://www.gmt.com.tw 1 Global Mixed-mode Technology Inc. Absolute Maximum Ratings Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . .6V Operating Ambient Temperature Range TA . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . -40°C to +85°C Maximum Junction Temperature, TJ . . . . . . . . . . 150°C Storage Temperature Range, TSTG . . . .-65°C to+150°C Reflow Temperature (soldering, 10sec) . . . . . . . .260°C G1431 Power Dissipation (1) TA ≤ 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7W TA ≤ 70°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.7W Electrostatic Discharge, VESD Human body mode . . . . . . . . . . . . . . . . . . . . . 3000V(2) Note: (1) (2) : Recommended PCB Layout : Human body model : C = 100pF, R = 1500Ω, 3 positive pulses plus 3 negative pulses www.DataSheet4U.com Electrical Characteristics DC Electrical Characteristics, TA=+25°C PARAME.


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