FC7496L

FC7496L FCI | Alldatasheet

Document overview

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Technical content

R L = 8Ω @THD = 10% VCC = 14V ST-BY 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 CON- TROL CIRCUIT POWER DIP-20PACKAGE

DESCRIPTION

The FC7496L 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. Features of the FC7496L include linear volume control, Stand-by and mute functions. DIP20 VOLUME OP AMP MUTE/STBY PROTECTIONS C2 470nF INR 30K VOLUME OP AMP -30K C8 1000µF C6 1000µF 1µF R2 10K C3 470nF INL R1 300KC5 100nF VOLUME OUTR S1 STBY S2 MUTE OUTL 1,2,3,13, 18,19,20 C4 470µF SVR 10 VSVAROUT_R 15,16 0.1µF 1000µF +V S PW_GND VOL 50K LOG +5V TP1 PW_GND PW_GND S_GND +5V +5V VAROUT_L 60K FC7496L Block Diagram & Application Circuit. FC7496L 2W+2W AMPLIFIER WITH DC VOLUME CONTROL PRIMARILY DATA Jan. 2007

VAROUT_L VAROUT_R VOLUME N.C. INR

9 MUTE

V S VS OUTL GND GND GND20 SVR 10 STBY 11 PIN CONNECTION THERMAL DATA Symbol Parameter Value Unit R th j-pins Thermal Resistance Junction-pins max. 15 °C/W R th j-amb (*) Thermal Resistance Junction-ambient max. 50 °C/W (*) Mounted on PCB with no heatsink ELECTRICAL CHARACTERISTICS (Refer to the test circuit VS = 14V; RL = 8Ω , Rg = 50Ω , Tamb = 25°C). Symbol Parameter Test Condition Min. Typ. Max. Unit VS Supply Voltage Range 10 18 V Iq Total Quiescent Current 25 50 mA DCV OS Output DC Offset Referred to SVR Potenial No Input Signal 200 mV VO Quiescent Output Voltage 7 V PO Output Power THD = 10%; R L = 8Ω ; 1.6 2 W THD = 1%; RL = 8Ω ; 1.3 W THD Total Harmonic Distortion G V = 30dB; PO = 1W; f = 1KHz; 0.4 % Ipeak Output Peak Current (internally limited) 0.7 0.9 A Vin Input Signal 2.8 Vrms G V Closed Loop Gain Vol Ctrl > 4.5V 28.5 30 31.5 dB G vLine Monitor Out Gain Vol Ctrl > 4.5V; Zload > 30K Ω -1.5 0 1.5 dB AMin VOL Attenuation at Minimum Volume Vol Ctrl < 0.5V 80 dB BW 0.6 MHz ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit VS DC Supply Voltage 26 V VIN Maximum Input Voltage 8 Vpp Ptot Total Power Dissipation (Tcase = 60°C) 6 W Tamb Ambient Operating Temperature 0 to 70 °C Tstg, Tj Storage and Junction Temperature -40 to 150 °C V6 Volume CTRL DC voltage 7 V 0 4 8 12 Area(cm 2) R thj-a (˚C/W) COPPER AREA 35 µ THICKNESS PC BOARD Rth with "on board" Square Heatsink vs. copper area. FC7496L 2W+2W AMPLIFIER WITH DC VOLUME CONTROL

ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter Test Condition Min. Typ. Max. Unit eN Total Output Noise 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 SR Slew Rate 5 8 V/ µs R i Input Resistance 22.5 30 K Ω R Var Out Variable Output Resistance 30 100 Ω R load Var Out Variable Output Load 2 K Ω SVR Supply Voltage Rejection f = 1kHz; max volume C SVR = 470µF; VRIP = 1Vrms 35 39 dB f = 1kHz; max attenuation C SVR = 470µF; VRIP =1Vrms 55 65 dB TM Thermal Muting 150 °C Ts Thermal Shut-down 160 °C MUTE STAND-BY & INPUT SELECTION FUNCTIONS VST ON Stand-by ON Threshold 3.5 V VST OFF Stand-by OFF Threshold 1.5 V VM ON Mute ON Threshold 3.5 V VM OFF Mute OFF Threshold 1.5 V IqST-BY Quiescent Current @ Stand-by 0.6 1 mA AMUTE Mute Attenuation 50 65 dB IstbyBIAS Stand-by bias current Stand by on V ST-BY = 5V VMUTE = 5V 80 µA µA Play or Mute -20 -5 µA ImuteBIAS Mute bias current Mute 1 5 µA Play 0.2 2 µA APPLICATION SUGGESTIONS The recommended values of the external components are those shown on the application circuit of fig- ure 1A. Different values can be used, the following table can help the designer. COMPONENT SUGGESTION VALUE PURPOSE LARGER THAN SUGGESTION SMALLER THAN SUGGESTION R1 300K Volume control circuit Larger volume regulation time Smaller volume regulation time R2 10K Mute time constant Larger mute on/off time Smaller mute on/off time P1 50K Volume control circuit C1 1000 µF Supply voltage bypass Danger of oscillation C2 470nF Input DC decoupling Lower low frequency cutoff Higher low frequency cutoff C3 470nF Input DC decoupling Lower low frequency cutoff Higher low frequency cutoff C4 470 µF Ripple rejection Better SVR Worse SVR C5 100nF Volume control time constant Larger volume regulation time Smaller volume regulation time C6 1000 µF Output DC decoupling Lower low frequency cutoff Higher low frequency cutoff C71 µFMute time constantLarger mute on/off timeSmaller mute on/off time C8 1000 µF Output DC decoupling Lower low frequency cutoff Higher low frequency cutoff C9 100nF Supply voltage bypass Danger of oscillation FC7496L 2W+2W AMPLIFIER WITH DC VOLUME CONTROL

MUTE ST-BY OPERATING CONDITION H H STANDBY L H STANDBY H L MUTE L L PLAY OFFSTBY MUTE PLAY STBYOFF MUTE VS (V) ST-BY pin#11 (V) MUTE pin#12 (V) INPUT (mV) VOUT (V) IQ (mA) VSVR pin#10(V) 2.5V 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 it is recommend to that the following conditions are respected. - 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 FC7496L must be brought to mute from the play condition when the SVR pin is higher than 2.5V. FC7496L 2W+2W AMPLIFIER WITH DC VOLUME CONTROL

10 11 12 13 14 15 16 17 18 Supply Voltage (V) Iq (mA) Vi=0 Quiescent current vs. Supply Voltage 10 11 12 13 14 15 16 17 18 Supply Voltage (V) 4.5 5.5 6.5 7.5 8.5 9.5 Vodc ( V) Vi=0 Output DC Voltage vs. Supply Voltage 10 11 12 13 14 15 16 17 18 Supply Voltage (V) 100 120 140 160 180 200 220 240 260 280 300 Vodc-Vsvr (V) Vi=0 Output DC Offset vs. Supply Voltage 10 11 12 13 14 15 16 17 18 Supply Voltage (V) 0.5 1.5 2.5 3.5 Ouput Power (W) THD=10 % THD=1 % Rl=8 Ohm F= 1 KHz Output Power vs. Supply Voltage Output Power (W) 0.01 0.1 Distortion (%) Rl=8 Ohm Vs=12V F=15 KHz F=1 KHz Distortion vs. Output Power 0.02 0.2 2 20 Frequency (KHz) Closed Loop Gain (dB) Rl=8 Ohm Pout=0.5W Cin=470nF Cout =1000uF Csvr=470 uF Closed Loop gain vs. Frequency FC7496L 2W+2W AMPLIFIER WITH DC VOLUME CONTROL

Vpin # 11 (V) -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 Stand-by Attenuation (dB) Rl=8 Ohm 0 dB @ Pout=1W St-By Attenuation vs. Vpin 11 Vpin # 12 (V) -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 Mute Attenuation (dB) Rl=8 Ohm 0 dB @ Pout=1W Mute Attenuation vs. Vpin 12 30K 30K SVR 20K 20K VS VS VS OUT L OUT R 100µA PIN: SVR FC7496L PIN DESCRIPTION FC7496L 2W+2W AMPLIFIER WITH DC VOLUME CONTROL

500µA 30K VS INn SVR PINS: INL, INR VAROUT-L VS PINS: VAROUT-L, VAROUT-R VOL VS 10µA PIN: VOLUME 50µA 200MUTE 10K VS PIN: MUTE GND VS PINS: PW-GND, S-GND OUT VS PINS: OUT R, OUT L 10µA 65K VS STBY 200 PIN: STBY FC7496L 2W+2W AMPLIFIER WITH DC VOLUME CONTROL

DIM. mm inch a1 0.51 0.020 B 0.85 1.40 0.033 0.055 b 0.50 0.020 b1 0.38 0.50 0.015 0.020 D 24.80 0.976 E 8.80 0.346 e 2.54 0.100 e3 22.86 0.900 F 7.10 0.280 I 5.10 0.201 L 3.30 0.130 Z 1.27 0.050 Powerdip 20 OUTLINE AND MECHANICAL DATA FC7496L 2W+2W AMPLIFIER WITH DC VOLUME CONTROL