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| Global Mixed-mode Technology Inc. Stereo Headphone Power Amplifier Features 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 G1401 General Description 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 16 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 CD-ROM DVD-ROM CD-R/W MP3 Portable Stereo Earphone for cellular phone Ordering Information PART G1401P1 TEMP. RANGE 0C to +70C PIN-PACKAGE 8 SOP Pin Configuration G1401 OUTA INA(neg) INA(pos) VSS 1 2 3 4 8 7 6 5 VDD OUTB INB(neg) INB(pos) Pinning 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 1.1 Aug 13, 2001 TEL: 886-3-5788833 http://www.gmt.com.tw 1 Global Mixed-mode Technology Inc. Block Diagram G1401 OUTA INA(neg) INA(pos) 1 2 3 8 VDD G1401 _ 7 _ OUTB INB(neg) INB(pos) + 6 5 V SS 4 + Absolute Maximum Ratings (Note1) SYMBOL VDD Tstg Tamb ESD PARAMETER Supply voltage Storage temperature Operating ambient temperature ESD voltage CONDITIONS MIN. 0 -65 0 - MAX. 7.0 +150 +70 2 UNIT V C C 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 210 UNIT C/W Test and Application Information V DD 3.9k 220F + RL V OUTA V INA 2.2F 3.9k 2 3 1 _ + 8 V ref (typ. 2.5V) 2.2F V INB 3.9k 6 _ 7 4 3.9k Fig.1 Measurement circuit for inverting application Ver 1.1 Aug 13, 2001 TEL: 886-3-5788833 http://www.gmt.com.tw 2 + 220F + RL V OUTB 5 G1401 + C6 100F Global Mixed-mode Technology Inc. Electrical Characteristics VDD = 5V; VSS = 0V ; Tamb = 25C; fi = 1kHz; RL = 32; unless otherwise specified. SYMBOL Supplies VDD G1401 MIN. 3.0 3.0 1.5 -1.5 -15 PARAMETER Supply voltage Single Dual Negative supply voltage Supply current Total power dissipation CONDITIONS TYP. 5.0 5.0 2.5 -2.5 3.0 15 60 90 100 1.78 62 70 MAX. 7.0 7.0 3.5 -3.5 5.5 28 15 4.0 4.0 4.9 - UNIT V V V V mA mW mV V dB dB mA V V dB dB VSS IDD Ptot no load no load DC Characteristics VI(OS) Input offset voltage VCM CMRR GV IO RO VO Common mode voltage Common-Mode Rejection Ratio Open-loop voltage gain Maximum output current Output resistance Output voltage swing VCM = 0V to 5V RL = 5k THD<0.1% open-loop RL= 20 RL = 32 note 1 RL = 5k PSRR CS Power supply rejection ratio Channel separation note 2 RL = 5k fG PO B Unity gain frequency Maximum output power Power bandwidth note 2 open-loop; RL = 5k note 1; RL = 16 unity gain inverting note 1 fi = 1kHz; Vripple(peak) = 1V 0 40 70 1.0 0.1 50 - AC Characteristics THD Total harmonic distortion - < 0.1 - % 2.5 - 3.7 135 30 5.0 - MHz mW kHz Notes: 1. Values are proportional to VDD; THD < 0.1% 2. VDD = 5.0V; VO(P-P) = 4.0V (at 0 dB) Ver 1.1 Aug 13, 2001 TEL: 886-3-5788833 http://www.gmt.com.tw 3 Global Mixed-mode Technology Inc. Output Swing Range Voltage Figure Test ConditionTA = 25C, AV = -1 G1401 V+ = 2.5V , V- = - 2.5V , RL=5k V+ = 1.5V , V- = - 1.5V , RL=5k V+ = 2.5V , V- = - 2.5V , RL=2k V+ = 1.5V , V- = - 1.5V , RL=2k V+ = 2.5V , V- = - 2.5V , RL=32 V+ = 1.5V , V- = - 1.5V , RL=32 V+ = 2.5V , V- = - 2.5V , RL=16 V+ = 1.5V , V- = - 1.5V , RL=16 Ver 1.1 Aug 13, 2001 TEL: 886-3-5788833 http://www.gmt.com.tw 4 Global Mixed-mode Technology Inc. Input Common Mode Voltage Range Figure Test ConditionTA = 25C, AV = 1 G1401 V+ = 5V, V- = 0V, RL = 5K V+ = 3V, V- = 0V, RL = 5k Test Condition: Vs = 2.5V, TA = 25C Open-Loop Gain & Phase vs. Frequency Power Supply Rejection - dB Test Condition: Vs = 2.5V, TA = 25C PSRR 70.0 100.0 80.0 Gain - dB 60.0 40.0 20.0 0.0 0.1 1 10 100 1000 Frequency - kHZ -50 Phase-degree -70 -90 -110 -130 -150 10000 60.0 50.0 40.0 30.0 20.0 10.0 0.0 0.1 1 10 Frequency - kHZ 100 1000 PSRR + PSRR - Ver 1.1 Aug 13, 2001 TEL: 886-3-5788833 http://www.gmt.com.tw 5 Global Mixed-mode Technology Inc. Package Information C G1401 E H L D 7 (4X) A2 y B A1 A e 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 MIN. 1.35 0.10 ----0.33 0.19 4.80 3.80 ----5.80 0.40 ----0 DIMENSION IN MM NOM. 1.60 ----1.45 ----------------1.27 ----------------- MAX. 1.75 0.25 ----0.51 0.25 5.00 4.00 ----6.20 1.27 0.10 8 MIN. 0.053 0.004 ----0.013 0.007 0.189 0.150 ----0.228 0.016 ----0 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 8 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. Ver 1.1 Aug 13, 2001 TEL: 886-3-5788833 http://www.gmt.com.tw 6 |
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