G1402 Global Mixed-mode Technology Inc. Stereo Headphone Power Amplifier Features General Description 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 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. Applications 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. 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 1 SYMBOL 8 PIN DESCRIPTION VDD OUTA 1 output A INA(neg) INA(pos) 2 3 inverting input A non-inverting input A VSS INB(pos) INB(neg) OUTB VDD 4 5 6 7 8 negative supply non-inverting input B inverting input B output B positive supply INA(neg) 2 7 OUTB INA(pos) 3 6 INB(neg) VSS 4 5 INB(pos) TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.2 Jun 28, 2004 1 G1402 Global Mixed-mode Technology Inc. Block Diagram G1402 8 1 OUTA INA(pos) 3 7 + 2 _ INA(neg) _ 6 + 5 4 VSS VDD OUTB INB(neg) INB(pos) Absolute Maximum Ratings (Note1) SYMBOL VDD Tstg PARAMETER CONDITION Supply voltage Storage temperature Tamb Operating ambient temperature ESD ESD voltage MIN MAX UNIT 0 -65 7.0 +150 V °C -40 +85 °C - 2 KV HBM 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 UNIT 240 °C/W Test and Application Information VDD 220µF + 3.9kΩ 100kΩ 2.2µF 3.9kΩ 2 3 5 2.2µF 3.9kΩ 8 + + G1402 C6 100µF 6 _ VINB 1 _ + VINA VOUTA RL 7 1µF 4 100kΩ 220µF + 3.9kΩ VOUTB RL Fig.1 Measurement circuit for inverting application TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.2 Jun 28, 2004 2 G1402 Global Mixed-mode Technology Inc. Electrical Characteristics VDD = 5V; VSS = 0V; TA = 25°C; fI= 1kHz; RL = 32Ω connected to VDD/2; unless otherwise specified. SYMBOL PARAMETER CONDITION MIN TYP MAX UNIT Supplies VDD VSS IDD Supply voltage 3.0 5.0 6.5 V Single Dual 3.0 1.5 5.0 2.5 6.5 3.25 V V no load -1.5 - -2.5 3.0 -3.25 5.0 V mA no load - 15 25 mW Negative supply voltage Supply current Ptot Total power dissipation DC Characteristics VI(OS) Input offset voltage -50 - 50 mV VCM GV Common mode voltage Open-loop voltage gain RL = 5kΩ 0 60 90 3.5 - V dB IO RO VDD-VOH VOL-VSS Maximum output current Output resistance Output Voltage Swing High Output Voltage Swing Low THD+N <0.1% closed-loop Sourcing current = 100mA Sinking current = 100mA Power supply rejection ratio fi = 1kHz; Vripple(rms) = 100mVrms RL=32Ω,Cb=1µF, PO=70mW 70 0.1 0.4 0.5 70 1 1 - mA PSRR - 65 - dB note 2 open-loop; RL = 5kΩ note 1; RL = 16Ω ; f=1kHz - < 0.1 5 125 - % MHz mW note 1; RL = 32Ω ; f=1kHz - 75 - mW αCS Channel separation AC Characteristics THD fG Total harmonic distortion Unity gain frequency PO Maximum output power Ω V V dB Notes: 1. Values are proportional to VDD; THD+N < 0.1% 2. VDD = 5.0V; VO(P-P) = 4.0V (at 0 dB) TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.2 Jun 28, 2004 3 G1402 Global Mixed-mode Technology Inc. Electrical Characteristics CIN=2.2µF, COUT=330µF, Cb=1µF, Av=1, Ri=18k, Rf=18k ; Av=-2, Ri=18k, Rf=36k ; Av=-4, Ri=9k,Rf=36k,TA=25°C THD+N vs Output Power THD+N vs Frequency 10 5 2 10 5 VDD=5V RL=32Ω Av=-1 2 1 VDD=5V RL=32Ω Po=50mW 1 0.5 Av=-4V/V 0.5 % % 20kHz 0.2 Av=-2V/V 0.2 0.1 0.1 1kHz 0.05 0.02 0.05 2m 5m 10m Av=-1V/V 0.02 20Hz 0.01 1m 20m 50m 100m 0.01 20 200m 50 100 200 500 W 1k 2k 5k 10k 20k Hz THD+N vs Frequency THD+N vs Output Power 10 10 5 5 VDD=5V RL=32Ω Av=-1 2 1 2 VDD=5V RL=16Ω Av=-1 1 0.5 20kHz 0.5 % % 0.2 0.2 1kHz Po=70mW 0.1 0.1 0.05 0.05 20Hz Po=60mW 0.02 0.01 20 50 100 200 500 1k 2k 5k 10k 0.02 0.01 2m 20k 5m 10m Hz THD+N vs Frequency 2 50m 100m 200m W THD+N vs Output Power 10 5 20m 10 5 VDD=5V RL=16Ω Po=50mW 2 1 1 Av=-4V/V 0.5 0.5 Av=-2V/V % 0.2 0.1 0.1 0.05 0.05 0.01 20 Av=-1V/V 50 100 200 20kHz % 0.2 0.02 VDD=3.3V RL=32Ω Av=-1 0.02 500 1k 2k 5k 10k 0.01 1m 20k 1kHz 20Hz 2m 5m 10m 20m 50m 100m W Hz TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.2 Jun 28, 2004 4 G1402 Global Mixed-mode Technology Inc. Electrical Characteristics (continued) THD+N vs Frequency THD+N vs Output Power 10 10 5 5 VDD=3.3V RL=32Ω Po=25mW 2 1 2 VDD=3.3V RL=16Ω Av=-1 1 Av=-4V/V 0.5 20kHz 0.5 % % Av=-2V/V 0.2 0.2 0.1 0.1 0.05 0.05 Av=-1V/V 0.02 0.01 20 50 100 20Hz 1kHz 0.02 200 500 1k 2k 5k 10k 0.01 2m 20k 3m 4m 5m 6m 7m 10m 20m Hz 30m 40m 50m 70m 100m W THD+N vs Frequency Output Noise 10 100u 90u 5 2 80u VDD=3.3V RL=16Ω Po=25mW 70u 60u 50u 1 Av=-4V/V BW=20kHz , No filters 40u Av=-2V/V 0.5 VDD=5V RL=32Ω Av=-1 Cb=1µF % V 30u 0.2 0.1 A- Weighting 20u Av=-1V/V 0.05 0.02 0.01 20 50 100 200 500 1k 2k 5k 10k 10u 20 20k 50 100 200 500 Hz -40 -45 -50 -55 d B 5k 10k 20k +0 T T T T T T T T T T T T T T T T T T T -25 -35 2k Power Supply Rejection Ratio Channel Separation -20 -30 1k Hz -10 VDD=5V RL=32Ω Av=-1 Po=70mW Cb=1µF -20 -30 -40 Channel A to B -50 d B -60 -65 VDD=5V RL=32Ω Av=-1 Vripple=100mVrms Cb=1µF Vpin 3,5=2.5V FORCED -60 -70 -70 -80 Channel B to A -75 -80 -90 -85 -100 -90 -110 -95 -100 20 50 100 200 500 1k 2k 5k 10k -120 20 20k Hz 50 100 200 500 1k 2k 5k 10k 20k Hz TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.2 Jun 28, 2004 5 Global Mixed-mode Technology Inc. G1402 Electrical Characteristics (continued) Open Loop Frequency Response TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.2 Jun 28, 2004 6 G1402 Global Mixed-mode Technology Inc. Electrical Characteristics (continued) Supply Current vs. Temperature 2.4 2.4 2.2 2.2 Supply Current (mA) Supply Current (mA) Supply Current vs.Supply Voltage 2.6 2 1.8 1.6 1.4 VDD=5V 2 1.8 1.6 1.4 VDD=3V 1.2 1.2 1 1 2.5 3.5 4.5 5.5 Supply Voltage(V) 6.5 -50 Offset Voltage vs. Supply Voltage 25 50 75 Temperature (°C) 100 125 5 4.8 4.5 4.6 Offset Voltage (mV) Offset Voltage (mV) 0 Offset Voltage vs.Temperature 5 4.4 4.2 4 3.8 3.6 3.4 4 VDD=3V 3.5 VDD=5V 3 2.5 3.2 3 2 2.5 3.5 4.5 5.5 Supply Voltage (V) 6.5 -50 Sinking Current vs. Vo-Vss -25 0 25 50 75 Temperature (°C) 100 125 Sourcing Current vs. VDD-Vo 350 350 300 Sourcing Current(mA) 300 Sinking Current(mA) -25 VDD=5V 250 200 150 VDD=3V 100 VDD=5V 250 200 VDD=3V 150 100 50 50 0 0 0 0.5 1 1.5 2 VO-Vss(V) 2.5 0 3 0.5 1 1.5 2 VDD - VO(V) 2.5 3 TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.2 Jun 28, 2004 7 G1402 Global Mixed-mode Technology Inc. Package Information C E H L D θ 7 ° (4X) A2 y e A A1 B 1. Package body sizes exclude mold flash and gate burrs 2. Dimension L is measured in gage plane 3. Tolerance 0.10mm unless otherwise specified 4. Controlling dimension is millimeter converted inch dimensions are not necessarily exact. MIN. DIMENSION IN MM NOM. MAX. MIN. DIMENSION IN INCH NOM. A 1.35 1.60 1.75 0.053 0.063 0.069 A1 0.10 ----- 0.25 0.004 ----- 0.010 A2 B ----0.33 1.45 ----- ----0.51 ----0.013 0.057 ----- ----0.020 C D E e H L 0.19 4.80 3.80 ----5.80 0.40 ------------1.27 --------- 0.25 5.00 4.00 ----6.20 1.27 0.007 0.189 0.150 ----0.228 0.016 ------------0.050 --------- 0.010 0.197 0.157 ----0.244 0.050 y θ ----- ----- 0.10 ----- ----- 0.004 0º ----- 8º 0º ----- 8º SYMBOL MAX. Taping Specification Feed Direction Typical SOP Package Orientation GMT Inc. does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and GMT Inc. reserves the right at any time without notice to change said circuitry and specifications. TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.2 Jun 28, 2004 8