Maker : Global Mixed-mode Technology
Part No. : G1432

  Datasheet PDF : G1432.pdf
  Cross Reference : G1432 Cross Reference
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Product Information

Global Mixed-mode Technology Inc. G1432 2W Stereo Audio Amplifier Features Depop Circuitry Integrated Output Power at 1% THD+N, VDD=5V --1.8W/CH (typical) into a 4Ω Load --1.2W/CH (typical) into a 8Ω Load Maximum Output Power Clamping Circuitry Integrated Bridge-Tied Load (BTL) Stereo Input MUX Mute and Shutdown Control Available www.DataSheet4U.com Surface-Mount Power Package 24-Pin TSSOP-P & 24-Pin QFN Available General Description The G1432 is a stereo audio power amplifier in 24pin TSSOP thermal pad package or 24pin QFN package. It can drive 1.8W 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. The G1432 can mute the output when Mute is activated. For the low current consumption applications, the SHDN mode is supported to disable the G1432 when it is idle. The current consumption can be further reduced to below 5µA. The G1432 also supports two input paths, that means two different gain loops can be set in the same PCB and choosing either one by setting IN1 /IN2 pin. It enhances the hardware designing flexibility. The G1432 also supports an extra function -- the maximum output power clamping function to protect the speakers from burned-out. Applications Stereo Power Amplifiers for Notebooks or Desktop Computers Multimedia Monitors Stereo Power Amplifiers for Portable Audio Systems Ordering Information ORDER MARKING NUMBER G1432F3U G1432Q5U G1432 G1432 TEMP. RANGE -40°C to +85°C PACKAGE (Pb free) QFN4X4-24 -40°C to +85°C TSSOP-24 (FD) Note: F3:TSSOP-24 (FD) Q5:QFN4X4-24 U: Tape & Reel Pin Configuration RBYPBASS RIN1 RIN2 RVDD G1432 GND/HS NC LOUT+ LIN1 LIN2 LBYPASS LVDD SHUTDOWN NC 1 2 3 4 5 6 7 8 9 24 23 22 21 20 19 18 17 16 15 14 13 GND/HS VOL ROUT+ RIN1 RIN2 RBYPASS RVDD GND IN1/IN2 ROUTMUTE GND/HS ROUT+ VOL GND/HS 19 20 21 22 23 24 17 16 15 14 GND 18 13 12 11 IN1/IN2 ROUTMUTE GND/HS GND/HS NC LOUT- Thermal Pad GND/HS NC LOUT+ Thermal Pad 10 9 8 7 LIN1 LBYPASS GND/HS 12 Top View TSSOP-24 (FD) Bottom View G1432 QFN4X4-24 Note: Recommend connecting the Thermal Pad to the GND for excellent power dissipation. Ver: 1.1 Jun 21, 2006 TEL: 886-3-5788833 http://www.gmt.com.tw 1 SHUTDOWN LVDD LIN2 NC LOUT- 10 NC 11 2 5 1 3 4 6 Global Mixed-mode Technology Inc. Absolute Maximum Ratings Supply Voltage, VDD . . . . . . . . . . . . . . . . . . . . . . . . .6V Input Voltage, VI . . . . . . . . . . . . . . . -0.3V to VDD+0.3V 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 Note: : Recommended PCB Layout. www.DataSheet4U.com (2) : Human body model : C = 100pF, R = 1500Ω, 3 positive pulses plus 3 negative pulses (1) G1432 Power Dissipation (1) TSSOP-24 (FD) TA ≤ 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.7W TA ≤ 70°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.7W TA ≤ 85°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.4W Electrostatic Discharge, VESD Human body mode . . . . . . . . . . . . . . .-3000 to 3000V(2) Electrical Characteristics DC Electrical Characteristics, TA=+25°C PARAMETER Supply Current in Mute Mode DC Differential Output Voltage IDD in Shutdown SYMBOL IDD(MUTE) VO(DIFF) ISD CONDITION VDD =3.3V Stereo BTL VDD = 5V Stereo BTL VDD = 5V,Gain = 2 VDD = 5V MIN --------- TYP 7 8 5 2 MAX 13 16 50 5 UNIT mA mV µA (AC Operation Characteristics, VDD = 5.0V, TA=+25°C, RL = 4Ω, unless otherwise noted) PARAMETER Output power (each channel) see Note SYMBOL P(OUT) CONDITION THD = 1%, BTL, RL = 4Ω THD = 1%, BTL, RL = 8Ω THD = 10%, BTL, RL = 4Ω THD = 10%, BTL...

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