A Power Management GMA7496L A MICROELECTRONICS 2W+2W AMPLIFIER WITH DC VOLUME CONTROL Features Description 2W+2W Output Power The GMA7496L is a stereo 2W+2W class AB power amplifier assembled in the @ DIP- 20 package, specially designed for high quality sound, TV and Monitor applications. RL = 8W @THD = 10% VCC = 14V St-by and Mute Functions Low Turn- on Turn-off POP Noise Features of the GMA7496L include linear volume control, Stand-by and mute functions. Linear Volume Control DC Coupled With Power Op- amp. No Boucherot Cell No St-by RC Input Network Single Supply Ranging up to 15V Short Circuit Protection Thermal Overload Protection Internally Fixed Gain Soft Clipping Variable Output After Volume Control Circuit DIP- 20 Package TYPIC APPLICATION CIRCUITS 7 GND 1,2,3,13, 18,19,20 Volume 470nF 15,16 OP- amp + - 9 INR VS 30K 1000µF 14 OUTR S1 ST-BY 11 STBY MUTE/STBY PROTECTIONS Volume 4 INL 470nF + OP- amp 30K S_GND 10K 12 MUTE 60K +5V 1µF +5V S2 MUTE 17 OUTL 1000µF SVR 10 470µF 6 Volume 100nF 5 Varout_L +5V 300K www.gammamicro.com PRELIMINARY GMA7496L V0.1 Varout_R 1 A Power Management GMA7496L A MICROELECTRONICS 2W+2W AMPLIFIER WITH DC VOLUME CONTROL MARKING INFORMATION & PIN CONFIGURATIONS (TOP VIEW) DIP-20 VS OUTL GND GND GND VS OUTR GND MUTE STBY 20 19 18 17 16 15 14 13 12 11 GMA7496L 1 2 3 4 5 6 7 8 9 10 SVR INR N.C. VAROUT_R VOLUME GND GND GND INL VAROUT_L ORDERING INFORMATION ORDERING NUMBER GMA7496LD20 PACKAGE SHIPPING DIP-20 22 Units/ Tube GMA7496L * For detail Ordering Number identification, please see last page. 2 A Power Management GMA7496L A MICROELECTRONICS 2W+2W AMPLIFIER WITH DC VOLUME CONTROL ABSOLUTE MAXIMUM RATINGS Parameter Symbol Value Unit DC Supply Voltage VS 26 V Maximum Input Voltage VIN 8 Vpp Total Power Dissipation (Tcase= 60°C) Ptot 6 W Tamp 0 to 70 °C Tstg, Tj -40 to 150 °C V6 7 V Parameter Symbol Value Unit Thermal Resistance Junction-pins (max.) Rth j-pins 15 °C/ W Thermal Resistance Junction-ambient (max.) Rth j-amb(*) 50 °C/W Ambient Operating Temperature Storage and Junction Temperature Volume CTRL DC Voltage THERMAL DATA GMA7496L (*) Mounted on PCB with no hestsink 3 A Power Management GMA7496L A MICROELECTRONICS 2W+2W AMPLIFIER WITH DC VOLUME CONTROL ELECTRICAL CHARACTERISTICS ( Refer to the test circuit VS = 14V; RL = 8W, Rg = 50W, Tamb = 25°C). Parameter SYMBOL Supply Voltage Range VS Total Quiescent Current IQ Output DC Offset Referred to SVR Potential TEST CONDITIONS VO Output Power PO 25 No Input Signal THD= 10%; RL= 8W 1.6 THD= 1%; RL= 8W Total Harmonic Distortion THD GV= 30dB; PO=1W; f= 1kHz Output Peak Current Ipeak (Internally Limited) Input Signal VIN Closed Loop Gain GV Vol Ctrl > 4.5V 28.5 Monitor Out Gain GVLine Vol Ctrl > 4.5V; Zload > 30KW -1.5 Attenuation at Minimum Volume Amin VOL Vol Ctrl < 0.5V eN Max Unit 18 V 50 mA 200 mV 7 V 2 W 1.3 W 0.4 0.7 0.9 % A 2.8 Vrms 30 31.5 dB 0 1.5 dB 80 dB 0.6 BW Total Output Noise Typ 10 DCVOS Quiescent Output Voltage Min Mhz f= 20Hz to 22kHz Play, max volume 500 800 µV f= 20Hz to 22kHz Play, max attenuation 100 250 µV f= 20Hz to 22kHz Mute 60 150 µV Slew Rate SR 5 8 V/ µs Input Resistance Ri 22.5 30 KW Variable Output Resistance Variable Output Load Supply Voltage Rejection 30 Rvar out Rload var out SVR 100 W KW 2 f= 1kHz; max volume CSVR= 470µF; VRIP= 1Vrms 35 39 dB f= 1kHz; max attenuation CSVR= 470µF; VRIP= 1Vrms 55 65 dB Thermal Muting TM 150 °C Thermal Shut-Down TS 160 °C GMA7496L MUTE STAND- BY & INPUT SELECTION FUNCTIONS Stand- by ON Threshold VST ON Stand- by OFF Threshold VST OFF Mute ON Threshold VM ON Mute OFF Threshold VM OFF Quiescent Current @ Stand- by IQST-BY Mute Attenuation AMUTE Stand- by Bias Current IstbyBIAS ImuteBIAS V 1.5 3.5 50 1.5 V 1 mA dB 65 80 Stand by on VST-BY= 5V VMUTE= 5V -20 V V 0.6 Play or Mute Mute Attenuation 4 Mute Bias Current 3.5 µA µA -5 Mute 1 5 µA Play 0.2 2 µA A Power Management GMA7496L A MICROELECTRONICS 2W+2W AMPLIFIER WITH DC VOLUME CONTROL DIP- 20 PACKAGE OUTLINE DIMENSIONS 0.010 NOM 0.254 NOM 0°~15° 0.252 ± 0.005 6.401 ± 0.127 0.355 ± 0.020 9.017 ± 0.508 0.300 ± 0.010 7.620 ± 0.254 1 1.026 ± 0.005 26.060 ± 0.127 0.130 ± 0.005 3.302 ± 0.127 0.170 MAX. 4.318 MAX. 0.015 MIN 0.381 MIN 0.130 ± 0.010 3.302 ± 0.254 0.060 TYP. 1.524 TYP. 0.018 TYP. 0.457 TYP. 0.100 TYP. 2.540 TYP. Inches ( mm ) ORDERING NUMBER GMA 7496L D20 T GMA7496L Gamma Micro. 10 Shipping T: Tube Circuit Type Package D20: DIP-20