Global Mixed-mode Technology Inc. Stereo Headphone Power Amplifier G1401 Features General Description Class AB amplifier High performance High signal-to-noise ratio Low distortion Low power consumption Large output voltage swing Excellent power supply ripple rejection 3.0V to 7.0V supply voltage range Surface-Mount package-SOP 8 The G1401 is a stereo audio power amplifier housed in a 8-pin SOP package capable of delivering 135mW of continuous power per channel into 16Ω loads. Amplifier gain is externally configured by means of two resistors per input channel. The G1401 is a dual channel, low voltage, low power, performance OP amps that can be designed into a wide range of headphone driving applications, at an economical price. Applications Ordering Information CD-ROM DVD-ROM CD-R/W MP3 Portable Stereo Earphone for cellular phone Pin Configuration PART TEMP. RANGE PIN-PACKAGE G1401P1 0°C to +70°C 8 SOP Pinning SYMBOL G1401 OUTA 1 8 VDD INA(neg) 2 7 OUTB INA(pos) 3 6 INB(neg) VSS 4 5 INB(pos) 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 TEL: 886-3-5788833 http://www.gmt.com.tw Ver 1.1 Aug 13, 2001 1 G1401 Global Mixed-mode Technology Inc. Block Diagram G1401 OUTA INA(pos) 3 7 + 2 VDD _ INA(neg) V SS 8 1 _ 6 + 5 4 OUTB INB(neg) INB(pos) Absolute Maximum Ratings (Note1) SYMBOL VDD Tstg Tamb ESD PARAMETER CONDITIONS Supply voltage Storage temperature Operating ambient temperature ESD voltage HBM MIN. MAX. UNIT 0 -65 0 - 7.0 +150 +70 2 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 UNIT 210 °C/W Test and Application Information V DD 220µF + 3.9kΩ V OUTA RL V INA 2.2µF 3.9kΩ 2 3 1 + V ref 5 2.2µF 3.9kΩ G1401 C6 100µF 6 _ V INB + + (typ. 2.5V) 8 _ 7 3.9kΩ 4 220µF + V OUTB RL Fig.1 Measurement circuit for inverting application TEL: 886-3-5788833 http://www.gmt.com.tw Ver 1.1 Aug 13, 2001 2 G1401 Global Mixed-mode Technology Inc. Electrical Characteristics VDD = 5V; VSS = 0V ; Tamb = 25°C; fi = 1kHz; RL = 32Ω Ω; unless otherwise specified. SYMBOL Supplies VDD VSS IDD Ptot PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Supply voltage 3.0 5.0 7.0 V Single Dual Negative supply voltage Supply current Total power dissipation 3.0 1.5 -1.5 - 5.0 2.5 -2.5 3.0 15 7.0 3.5 -3.5 5.5 28 V V V mA mW no load no load DC Characteristics VI(OS) Input offset voltage VCM CMRR GV IO RO VO PSRR αCS Common mode voltage Common-Mode Rejection Ratio Open-loop voltage gain Maximum output current Output resistance Output voltage swing Power supply rejection ratio -15 - 15 mV 60 90 100 1.78 4.0 THD<0.1% open-loop RL= 20Ω RL = 32Ω 0 40 70 - - V dB dB mA Ω 1.0 - 4.0 V note 1 RL = 5kΩ 0.1 - 4.9 V 50 62 - dB - 70 - dB - < 0.1 - % 2.5 - 3.7 135 30 5.0 - MHz mW kHz VCM = 0V to 5V RL = 5kΩ note 1 fi = 1kHz; Vripple(peak) = 1V Channel separation AC Characteristics THD Total harmonic distortion note 2 RL = 5kΩ fG PO B Unity gain frequency Maximum output power Power bandwidth note 2 open-loop; RL = 5kΩ note 1; RL = 16Ω unity gain inverting Notes: 1. Values are proportional to VDD; THD < 0.1% 2. VDD = 5.0V; VO(P-P) = 4.0V (at 0 dB) TEL: 886-3-5788833 http://www.gmt.com.tw Ver 1.1 Aug 13, 2001 3 Global Mixed-mode Technology Inc. G1401 Output Swing Range Voltage Figure Test Condition： ：TA = 25°C, AV = -1 Ω V+ = 2.5V , V- = - 2.5V , RL=5kΩ Ω V+ = 1.5V , V- = - 1.5V , R L=5kΩ Ω V+ = 2.5V , V- = - 2.5V , RL=2kΩ Ω V+ = 1.5V , V- = - 1.5V , R L=2kΩ Ω V+ = 2.5V , V- = - 2.5V , RL=32Ω Ω V+ = 1.5V , V- = - 1.5V , R L=32Ω Ω V+ = 2.5V , V- = - 2.5V , RL=16Ω Ω V+ = 1.5V , V- = - 1.5V , R L=16Ω TEL: 886-3-5788833 http://www.gmt.com.tw Ver 1.1 Aug 13, 2001 4 G1401 Global Mixed-mode Technology Inc. Input Common Mode Voltage Range Figure Test Condition： ：TA = 25°C, AV = 1 Ω V+ = 5V, V- = 0V, RL = 5KΩ Ω V+ = 3V, V- = 0V, RL = 5kΩ Test Condition: Vs = ±2.5V, TA = 25°C Test Condition: Vs = ±2.5V, TA = 25°C PSRR Open-Loop Gain & Phase vs. Frequency 80.0 -70 60.0 -90 40.0 -110 20.0 -130 0.0 -150 10000 0.1 1 10 100 1000 Power Supply Rejection - dB -50 Gain - dB 100.0 Phase-degree 70.0 60.0 50.0 40.0 PSRR + 30.0 PSRR - 20.0 10.0 0.0 0.1 1 10 100 1000 Frequency - kHZ Frequency - kHZ TEL: 886-3-5788833 http://www.gmt.com.tw Ver 1.1 Aug 13, 2001 5 G1401 Global Mixed-mode Technology Inc. Package Information C E H L D θ 7° (4X) A2 y A A1 e 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. SYMBOL A A1 A2 B C D E e H L y θ MIN. DIMENSION IN MM NOM. MAX. MIN. 1.35 0.10 ----0.33 0.19 4.80 3.80 ----5.80 0.40 ----0º 1.60 ----1.45 ----------------1.27 ----------------- 1.75 0.25 ----0.51 0.25 5.00 4.00 ----6.20 1.27 0.10 8º 0.053 0.004 ----0.013 0.007 0.189 0.150 ----0.228 0.016 ----0º DIMENSION IN INCH NOM. 0.063 ----0.057 ----------------0.050 ----------------- MAX. 0.069 0.010 ----0.020 0.010 0.197 0.157 ----0.244 0.050 0.004 8º 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 1.1 Aug 13, 2001 6