GMA7496LD20T

GMA7496L 2W+2W AMPLIFIER WITH DC VOLUME CONTROL Description The GMA7496L is a stereo 2W+2W class AB power amplifier assembled in the Powerdip 14+3+3 package, specially designed for high quality sound, TV and monitor applications. Features of the GMA7496L include linear volume control, stand-by and mute functions. Features 2W+2W Output Power RL = 8Ω @THD = 10%, VCC = 14V Standby and Mute Functions Low Turn- on Turn-off POP Noise 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 & SOP- 20 Package Typical Application Circuit Varout_R GND INR 470nF 1, 2, 3, 13, 18, 19, 20 9 30K 7 Volume VS 15, 16 OP-Amp 14 OUTR 1000µF S1 11 STBY MUTE/STBY PROTECTIONS 470nF INL Volume 4 30K SVR 10 6 Volume 5 Varout_L 300K OP-Amp 60K 12 MUTE 10K 1µF 17 OUTL 1000µF S2 ST-BY +5V GND MUTE +5V +5V w ww.gammamicro.com.tw GMA7496LV1.00 1 GMA7496L 2W+2W AMPLIFIER WITH DC VOLUME CONTROL Marking Information and Pin Configurations (Top View) GND 1. GND 2. GND 3. INL 4. 20. GND GND 1 19. GND 18. GND 17. OUTL GND 2. GND 3. INL 4. VAROUT_L 5. 20. GND 19. GND 18. GND 17. OUTL 16. VS 15. VS 14. OUTR 13. GND 12. MUTE 11. STBY GMA7496L AYWW GMA7496L AYWW VAROUT_L 5. VOLUME 6. VAROUT_R 7. NC 8. INR 9. SVR 10. 16. VS 15. VS 14. OUTR 13. GND 12. MUTE 11. STBY VOLUME 6. VAROUT_R 7. NC 8. INR 9. SVR 10. A: Assembly/Test Site Code Y: Year WW: Week Ordering Information Ordering Number GMA7496LD20T GMA7496LS20T Package DIP-20 SO-20 Shipping 22 Units/Tube 38 Units/Tube GMA7496LV1.00 2 GMA7496L 2W+2W AMPLIFIER WITH DC VOLUME CONTROL Absolute Maximum Ratings PARAMETER DC Supply Voltage Maximum Input Voltage Total Power Dissipation (TCASE = 60˚C) Operating Ambient Temperature Storage Temperature Volume CTRL DC Voltage ESD Capability, Machine Mode SYMBOL VS VIN Ptot TA Tstg V6 VESD RATINGS 26 8 6 0 to 70 - 40 to 150 7 200 UNITS V VPP W ℃ ℃ V V Thermal Data PARAMETER Thermal Resistance Junction-pins (max) Thermal Resistance Junction-Ambient (max) (*) Mounted on PCB with no heatsink. SYMBOL Rth i-pins Rth i-amb(*) RATINGS 15 50 UNITS ˚C/W ˚C/W GMA7496LV1.00 3 GMA7496L 2W+2W AMPLIFIER WITH DC VOLUME CONTROL Electrical Characteristics Refer to the test circuit: VS = 14V, RL = 8Ω, Rg = 50 Ω, TA = 25ºC Parameter Supply Voltage Total Quiescent Current Output DC Offset Referred to SVR Potential Quiescent Output Voltage Output Power Total Harmonic Distortion Output Peak Current Input Signal Closed Loop Gain Monitor Out Gain Attenuation at Minimum Volume Frequency Response Symbol VS IQ DCVOS VO PO THD IPEAK VIN GV GVLine AMIN VOL BW Test Condition Min 10 Typ Max 18 Unit V mA mV 25 No Input Signal 6.0 THD = 10%, RL = 8Ω THD = 1%, RL = 8Ω GV = 30dB, PO = 1W, f = 1kHz (Internally Limited) 0.7 0.9 1.6 200 6.7 2 1.3 50 8.0 V W 0.4 % A 2.8 Vol Ctrl > 4.5V Vol Ctrl > 4.5V, Zload > 30KΩ Vol Ctrl < 0.5V 28.5 -1.5 80 0.6 f = 20Hz to 22KHz, Play Max Volume 500 100 60 5 22.5 8 30 30 2 f = 1kHz, Max Volume, CSVR = 470µF, VRIP = 1Vrms f = 1kHz, Max Attenuation, CSVR = 470µF, VRIP = 1Vrms 35 55 39 100 800 250 150 30 0 31.5 1.5 VRMS dB dB dB MHz Total Output Noise eN f = 20Hz to 22KHz, Play Max Attenuation f = 20Hz to 22KHz, Mute µV Slew Rate Input Resistance Variable Output Resistance Variable Output Load SR Ri RVar Out Rload Var V/µS kΩ Ω kΩ Supply voltage Rejection SVR dB 65 150 160 ºC ºC Thermal Muting Thermal Shut-down TM TS GMA7496LV1.00 4 GMA7496L 2W+2W AMPLIFIER WITH DC VOLUME CONTROL Electrical Characteristics (continued) Refer to the test circuit: VS = 14V, RL = 80Ω, Rg = 50 Ω, TA = 25ºC Parameter Symbol Test Condition Min Typ Max Unit MUTE STAND-BY & INPUT SELECTION FUNCTIONS Stand-by ON Threshold Stand-by OFF Threshold Mute ON Threshold Mute OFF Threshold Quiescent Current @ Stand-by Mute Attenuation Stand-by Bias Current VST ON VST OFF VM ON VM OFF IqST-BY AMUTE IST-BYBIAS Stand by on VST-BY = 5V Play or Mute Mute Play -20 50 0.6 65 80 -5 1 0.2 5 2 3.5 1.5 1 3.5 1.5 V V V V mA dB µA Mute Bias Current ImuteBIAS µA Application Suggestions: The recommended values of the external components are those shown in the application circuit of figure 1. However, different values can be used from the following table of references for further helpr. Component R1 R2 P1 C1 C2 C3 C4 C5 C6 C7 C8 C9 Suggestion Value 300K 10K 50K 1000µF 470nF 470nF 470µF 100nF 1000µF 1µF 1000µF 100nF Purpose Volume control circuit Mute time constant Volume control circuit Supply voltage bypass Input DC decoupling Input DC decoupling Ripple rejection Volume control time constant Output DC decoupling Mute time constant Output DC decoupling Supply voltage bypass Larger than Suggestion Longer volume regulation time Longer mute on/off time Smaller than Suggestion Shorter volume regulation time Shorter mute on/off time Danger of oscillation Lower low frequency cutoff Lower low frequency cutoff Better SVR Larger volume regulation time Lower low frequency cutoff Longer mute on/off time Lower low frequency cutoff Higher low frequency cutoff Higher low frequency cutoff Worse SVR Smaller volume regulation time Higher low frequency cutoff Shorter mute on/off time Higher low frequency cutoff Danger of oscillation GMA7496LV1.00 5 GMA7496L 2W+2W AMPLIFIER WITH DC VOLUME CONTROL Application Circuit: Mute Stand-By Truth Table MUTE H L H L ST-BY H H L L OPERATING CONDITIO STANDBY STANDBY MUTE PLAY GMA7496LV1.00 6 GMA7496L 2W+2W AMPLIFIER WITH DC VOLUME CONTROL Turn ON/OFF Sequences (for optimizing the POP performances) A. USING MUTE AND STAND-BY FUNCTIONS B. USING ONLY THE MUTE FUNCTION To simplify the application, the stand-by pin can be connected directly to Ground. During the ON/OFF transitions is recommend to respect the following conditions. At the turn-on, the transition mute-play must be made when the SVR pin is higher than 2.5V At the turn-off, the KGM7496L must be brought to mute from the play condition when the SVR pin is higher than 2.5V GMA7496LV1.00 7 GMA7496L 2W+2W AMPLIFIER WITH DC VOLUME CONTROL Typical Performance Characteristics: Quiescent current vs. Supply Voltage Output DC Voltage vs. Supply Voltage Vodc (V) 9.5 9 8.5 8 7.5 7 6.5 6 5.5 5 4.5 4 10 Vi = 0 11 12 13 14 15 16 17 18 Supply Voltage (V) Output DC Offset vs. Supply Voltage Output Power vs. Supply Voltage Distortion vs. Output Power Closed Loop gain vs. Frequency GMA7496LV1.00 8 GMA7496L 2W+2W AMPLIFIER WITH DC VOLUME CONTROL Typical Performance Characteristics (continuous): St-By Attenuation vs. Vpin 11 Mute Attenuation vs. Vpin 12 Pin Descriptions VS VS VS 30K 20K SVR 20K 6K 1K 30K 6K 1K OUT L OUTR 100µA GMA7496LV1.00 9 GMA7496L 2W+2W AMPLIFIER WITH DC VOLUME CONTROL Pin Descriptions (continued) PINS: INL, INR VS 500µA 6K PINS: VAROUT-L, VAROUT-R VS IN 30K SVR VAROUT PINS: VOLUME VS 10µA PINS: MUTE VS 200 10K 50µA MUTE VOL PINS: PW-GND, S-GND PINS: OUT L, OUT R OUT L GND VS OUT R GMA7496LV1.00 PINS: STBY VS 10µA 200 STBY 65K 10 GMA7496L 2W+2W AMPLIFIER WITH DC VOLUME CONTROL Package Outline Dimensions – DIP 20 1.022 - 1.045 25.950 - 26.550 7.620 TYP 0.300 TYP 0.244 - 0.260 6.200 - 6.600 0.008 - 0.014 0.204 - 0.360 0.323 - 0.370 8.200 - 9.400 0.146 - 0.170 3.710 - 4.310 0.118 - 0.142 3.000 - 3.600 0.060 TYP 1.524 TYP 0.014 - 0.022 0.360 - 0.560 2.540 TYP 0.100 TYP 0.126 - 0.142 3.200 - 3.600 0.020 MIN .510 MIN Inches mm GMA7496LV1.00 11 GMA7496L 2W+2W AMPLIFIER WITH DC VOLUME CONTROL O rdering Number G MA 7496L D20 APM Gamma Micro Circuit Type Package Type D20: DIP-20 S20: SOP-20 T Shipping Type T: Tube R: Tape & Reel GMA7496LV1.00 8 12 0 1 6