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G1402 Dataheets PDF



Part Number G1402
Manufacturers Global Mixed-mode Technology
Logo Global Mixed-mode Technology
Description Stereo Headphone Power Amplifier
Datasheet G1402 DatasheetG1402 Datasheet (PDF)

Global Mixed-mode Technology Inc. Stereo Headphone Power Amplifier Features „ „ „ „ „ „ „ „ G1402 General Description The G1402 is an output rail-to-rail stereo audio power amplifier housed in a 8-pin SOP package capable of delivering 125mW of continuous power into 16Ω loads & 75mW into 32Ω loads with the THD <0.1% per channel. The gain setting of the amplifiers can simply achieve by setting two external resistors RI (input resistor) & RF (feedback resistor) promptly. The G1402 is a dual chan.

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Global Mixed-mode Technology Inc. Stereo Headphone Power Amplifier Features „ „ „ „ „ „ „ „ G1402 General Description The G1402 is an output rail-to-rail stereo audio power amplifier housed in a 8-pin SOP package capable of delivering 125mW of continuous power into 16Ω loads & 75mW into 32Ω loads with the THD <0.1% per channel. The gain setting of the amplifiers can simply achieve by setting two external resistors RI (input resistor) & RF (feedback resistor) promptly. The G1402 is a dual channel, low voltage, low power, and high performance amplifiers. The quiescent current is 3mA @ 5V typically. With excellent AC performance (small THD), it can be designed into a wide range of headphone driving applications. High performance Class AB amplifier High signal-to-noise ratio Low distortion Low power consumption Large output voltage swing Excellent power supply ripple rejection 3.0V to 6.5V supply voltage range Surface-Mount package-SOP 8 www.DataSheet4U.com „ „ Applications CD-ROM DVD-ROM „ CD-R/W „ MP3 „ Portable Stereo Ordering Information ORDER MARKING NUMBER G1402P1X G1402P1Xf G1402 G1402 TEMP. RANGE PACKAGE -40°C to +85°C SOP-8L -40°C to +85°C SOP-8L (Pb free) Note: X Specify the packing type U: Tape & Reel T: Tube Pin Configuration G1402 OUTA INA(neg) INA(pos) VSS 1 2 3 4 8 7 6 5 VDD OUTB INB(neg) INB(pos) SYMBOL OUTA INA(neg) INA(pos) VSS INB(pos) INB(neg) OUTB VDD PIN 1 2 3 4 5 6 7 8 DESCRIPTION output A inverting input A non-inverting input A negative supply non-inverting input B inverting input B output B positive supply Ver: 1.2 Jun 28, 2004 TEL: 886-3-5788833 http://www.gmt.com.tw 1 Global Mixed-mode Technology Inc. Block Diagram G1402 OUTA INA(neg) INA(pos) 1 2 3 8 VDD G1402 _ 7 _ OUTB INB(neg) INB(pos) + + 6 5 VSS www.DataSheet4U.com 4 Absolute Maximum Ratings (Note1) SYMBOL VDD Tstg Tamb ESD PARAMETER Supply voltage Storage temperature Operating ambient temperature ESD voltage HBM CONDITION MIN 0 -65 -40 - MAX 7.0 +150 +85 2 UNIT V °C °C KV Notes: 1. Absolute Maximum Ratings are limits beyond which damage to the device may occur. Thermal Characteristics SYMBOL Rth j-a PARAMETER Thermal resistance from junction to ambient in free air SO8 VALUE 240 UNIT °C/W Test and Application Information VDD 3.9kΩ 220µF + RL VOUTA 100kΩ VINA 2.2µF 3.9kΩ 2 3 5 1 _ + 8 G1402 + 3.9kΩ _ 7 4 + C6 100µF VINB 2.2µF 3.9kΩ 6 1µF 100kΩ 220µF + RL VOUTB Fig.1 Measurement circuit for inverting application Ver: 1.2 Jun 28, 2004 TEL: 886-3-5788833 http://www.gmt.com.tw 2 Global Mixed-mode Technology Inc. Electrical Characteristics SYMBOL Supplies VDD Supply voltage Single Dual VSS IDD Negative supply voltage Supply current no load no load 3.0 3.0 1.5 -1.5 -50 RL = 5kΩ THD+N <0.1% closed-loop Sourcing current = 100mA Sinking current = 100mA fi = 1kHz; Vripple(rms) = 100mVrms RL=32Ω,Cb=1µF, PO=70mW note 2 open-loop; RL = 5kΩ note 1; RL = 16Ω ; f=1kHz note 1; RL = 32Ω ; f=1kHz 0 60 5.0 5.0 2.5 -2.5 3.0 15 90 .


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