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SH7496 .
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SITECH SEMICONDUCTORS CO.,LIMITED
5W+5W AMPLIFIER WITH DC VOLUME CONTROL
MULTIPOWER BI50II TECHNOLOGY
5+5W OUTPUT POWER RL = 8 @THD = 10% VCC = 22V 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 35V SHORT CIRCUIT PROTECTION THERMAL OVERLOAD PROTECTION INTERNALLY FIXED GAIN SOFT CLIPPING VARIABLE OUTPUT AFTER VOLUME CONTROL CIRCUIT MULTIWATT 15 PACKAGE
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Multiwatt 15 ORDERING NUMBER: SH7496
plifier assembled i the @ Multiwatt 15 package, specially designed for high quality sound, TV applications. Features of the SH7496 include linear volume control Stand-by and Mute functions.
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DESCRIPTION The SH7496 is a stereo 5+5W class AB power amBLOCK DIAGRAM
VAROUT_R PW_GND 2 11 1 470nF 30K VOLUME + OP AMP S1 ST-BY S_GND 8 MUTE/STBY PROTECTIONS VOLUME INL 470nF 5 30K + OP AMP SVR 470F VOLUME 7 3 4 VAROUT_L +5V 60K 10 MUTE 9 STBY 10K 1F S2 MUTE 12 OUTL 1000F +5V S_GND VS 13 15 PW_GND
INR
14
1000F OUTR
+5V
100nF
300K
D96AU440D
September 2005
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ABSOLUTE MAXIMUM RATINGS
Symbol VS VIN Ptot Tamb Tstg,TJ V3 DC Supply Voltage Maximum Input Voltage Total Power Dissipation (Tamb = 80C) Ambient Operating Temperature (1) Storage and Junction Temperature Volume Control DC Voltage Parameter Value 35 8 15 0 to 70 -40 to 150 7 Unit V Vpp W C C V
PIN CONNECTION (top view)
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 PW_GND OUTR VS OUTL PW_GND MUTE STBY S_GND SVR N.C. INL VAROUT_L VOLUME VAROUT_R INR
D96AU441B
THERMAL DATA
Symbol Rth j-case Rth j-amb Parameter Thermal Resistance junction-case Thermal Resistance junction-ambient Max. Value Typ. = 4; Max. = 4.6 35 Unit C/W C/W
ELECTRICAL CHARACTERISTCS (Refer to the test circuit Vs = 22V; RL = 8, Rg = 50, Tamb = 25C)
Symbol Parameter Supply Voltage Range Total Quiescent Current Output DC Offset Referred to SVR No Input Signal Potential Quiescent Output Voltage Output Power THD = 10%; RL = 8; THD = 1%; RL = 8; THD = 10%; RL = 4; VS = 12V THD = 1%; RL = 4; VS = 12V 5 Test Condition Min. 10 25 200 11 5.5 4 2.1 1.0 0.4 Typ. Max. 32 50 Unit V mA mV
Vs
Iq DCVos
VO PO
V
W W
THD
Total Harmonic Distortion
Gv = 30dB; PO = 1W; f = 1KHz
%
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ELECTRICAL CHARACTERISTCS (continued) (Refer to the test circuit Vs = 22V; RL = 8, Rg = 50, Tamb = 25C)
Symbol Parameter Output Peak Current Input Signal Closed Loop Gain Monitor Out Gain VOl Ctrl >4.5V VOl Ctrl >4.5V; Zload >30K VOl Ctrl <0.5V 28.5 -1.5 80 0.6 Total Output Noise f = 20Hz to 22KHz PLAY, max volume f = 20Hz to 22KHz PLAY, max attenuation f = 20Hz to 22KHz MUTE SR Ri RVar Out Slew Rate Input Resistance Variable Output Resistance 2 f = 1KHz; max volume CSVR = 470F; VRIP = 1Vrms f = 1KHz; max attenuation CSVR = 470F; VRIP = 1Vrms TM TS Thermal Muting Thermal Shut-down 35 55 39 65 150 160 5 22.5 500 100 60 8 30 30 100 800 250 150 30 0 Test Condition (internally limited) Min. 1.0 Typ. 1.3 2.8 31.5 1.5 Max. Unit A Vrms dB dB dB MHz V V V V/s K K dB dB C C
Ipeak
VIN GV GVLine
AMin VOL Attenuation at Minimum Volume BW eN
RL Var Out Variable Output Load SVR Supply Voltage Rejection
MUTE & INPUT SELECTION FUNCTIONS VST-ON VST-OFF Stand-by ON Threshold Stand-by OFF Threshold 3.5 1.5 50 65 0.6 Stand by ON: VST-BY = 5V; Vmute = 5V Play or Mute ImuteBIAS Mute Bias Current Mute Play -20 80 -5 1 0.2 5 2 1 3.5 1.5 V V V V dB mA A A A A
VMUTEON Mute ON threshold VMUTEOFF Mute OFF threshold AMUTE IqST-BY IstbyBIAS Mute Attenuation Quiescent Current @ Stand-by Stand-by bias current
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APPLICATION SUGGESTIONS The recommended values of the external components are those shown on the application circuit of figure 1. Different values can be used, the following table can help the designer.
COMPONENT R1 R2 P1 C1 C2 C3 C4 C5 C6 C7 C8 C9 SUGGESTION VALUE 300K 10K 50K 1000F 470nF 470nF 470F 100nF 1000F 1F 1000F 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 Danger of oscillation Lower low frequency cutoff Higher low frequency cutoff Lower low frequency cutoff Higher low frequency cutoff Better SVR Larger volume regulation time Worse SVR Smaller volume regulation time LARGER THAN SUGGESTION Larger volume regulation time Larger mute on/off time SMALLER THAN SUGGESTION Smaller volume regulation time Smaller mute on/off time
Lower low frequency cutoff Higher low frequency cutoff Larger mute on/off time Smaller mute on/off time
Lower low frequency cutoff Higher low frequency cutoff Danger of oscillation
Figure 1. Application Circui
+VS C1 1000F VAROUT_R PW_GND 2 11 1 C2 470nF 30K VOLUME + OP AMP S1 STBY S_GND 8 MUTE/STBY PROTECTIONS VOLUME INL C3 470nF 5 30K + OP AMP SVR C4 470F VOLUME 7 3 4 VAROUT_L R1 300K TP1 VOL P1 50K LOG +5V 12 C6 1000F 9 10 C7 1F OUTL PW_GND R2 10K +5V 13 15 VS PW_GND C9 0.1F
INR
14
C8 1000F
PW_GND OUTR
S_GND +5V
S2 MUTE
C5 100nF
D96AU493D
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MUTE STAND-BY TRUTH TABLE
MUTE H L H L St-BY H H L L OPERATING CONDITION STAND-BY STAND-BY MUTE PLAY
Turn ON/OFF Sequences (for optimizing the POP performances) Figure 1. USING ONLY THE MUTE FUNCTION
VS (V)
ST-BY pin#9 (V) 5
VSVR pin#7(V)
2.5V MUTE pin#10 (V) 5
INPUT (mV)
VOUT (V)
OFF
STBY MUTE
PLAY
MUTE STBY
OFF
IQ (mA)
D97AU684
USING ONLY THE MUTE FUNCTION To semplify the application, the stand-by pin can be connected directly to Ground. During the ON/OFF transitions is recommended to respect the following conditions: - At the turn-on the transition mute to mute - play must be made when the SVR pin is higher than 2.5V - At the turn-off the SH7496 must be brought to mute from the play condition when the SVR pin is higher than 2.5V.
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Figure 2. P.C.B. and Component layoutPCB and Component Layout
Figure 3.
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Figure 4. Quiescent Current vs. Supply Voltage
Iq (mA) 30 28 26 24 22 20 18 16 10 12 14 16 18 20 22 24 26 Supply Voltage (V) 28 30 32 Vi=0
Figure 7. Output DC Offset vs. Supply Voltage
Vodc-Vsvr (V) 280 260 240 220 200 180 160 140 120 100 10 12 14 16 18 20 22 24 Supply Voltage (V) 26 28 30 32
D03AU1494
D03AU1496
Vi=0
Figure 5. Output Dc Offset vs. Supply Voltage
Vodc (V) 16 15 14 13 12 11 10 9 8 7 6 5 4 Vi=0
Figure 8. Output Power vs Supply Voltage
Output Power (W) 3.2 2.8 2.4 2.0 1.6 1.2 0.8 0.4 0
D03AU1498
D03AU1495
Rl=4 F=1KHz
THD=10%
THD=1%
10
12
14
16
18 20 22 24 Supply Voltage (V)
26
28
30
32
10
10.5
11
11.5 12 12.5 Supply Voltage (V)
13
13.5
14
Figure 6. Output Power vs. Supply Voltage
Figure 9. Distortion vs Output Power
Output Power (W) 8 7 6 5 4 3 2 1 0 10 12 14 16 18 20 Supply Voltage (V) 22
D03AU1497
Distortion (%)
Vs=22V Rl=8
D03AU1499
Rl=8 F=1KHz
THD=10%
1
F=15KHz
0.1
THD=1%
F=1KHz
24
26
0.01
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 Output Power (W)
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Figure 10. Distortion vs Output Power
Distortion (%)
D03AU1500
Figure 13. Mute Attenuation vs Vpin 10
Mute Attenuation (dB) 0
D03AU1503
1
F=15KHz
Vs=12V Rl=4
F=1KHz
-20 -40 -60 -80 -100 -120
Rl=8 0dB @ Pout=1W
0.1
0.01
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Output Power (W)
0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0 4.4 4.8 5.2 Vpin # 10 (V)
Figure 11. Closed Loop Gain vs. Frequency
Closed loop Gain (dB) 30 28 26 24 22 20 0.02 0.2 2 Frequency (KHz) 20
D03AU1501
PINS DESCRIPTION Figure 14. PIN SVR
VS VS VS
Rl=8 Pout=0.5W Cin=470nF Cout=1000F Csvr=470F
SVR
+ -
OUT L
20K
6K
1K
30K
20K
6K
1K 30K
OUT R
100A
Figure 12. St-By Attenuation vs Vpin 9
St-by Attenuation (dB)
Figure 15. PINS: INL,INR
D03AU1502
VS
0 -20 -40 -60 -80 -100 -120 -140
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Vpin # 9 (V) 4.0 4.5 5.0
Rl=8 0dB @ Pout=1W
6K
INn 30K
D97AU589
SVR
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+
D97AU585A
-
500A
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Figure 17. PIN ST-BY
VS
Figure 20. PINS: VAROUT-L VAROUT-R
VS
10A
STBY
200
VAROUT-L
65K
D97AU594
D97AU590
Figure 18. PIN: MUTE Figure 21. PIN: VOLUME
VS MUTE 200 10K
VS 10A VOL
50A
D97AU592
Figure 19. PINS: OUT R, OUT L
D97AU591
VS
Figure 22. PINS: PW-GND, S-GND
OUT
VS GND
D97AU593
D97AU588
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mm MIN. A B C D E F G G1 H1 H2 L L1 L2 L3 L4 L7 M M1 S S1 Dia1 21.9 21.7 17.65 17.25 10.3 2.65 4.25 4.63 1.9 1.9 3.65 4.55 5.08 17.5 10.7 22.2 22.1 0.49 0.66 1.02 17.53 19.6 20.2 22.5 22.5 18.1 17.75 10.9 2.9 4.85 5.53 2.6 2.6 3.85 0.862 0.854 0.695 0.679 0.406 0.104 0.167 0.182 0.075 0.075 0.144 0.179 0.200 0.689 0.421 0.874 0.870 1.27 17.78 1 0.55 0.75 1.52 18.03 0.019 0.026 0.040 0.690 0.772 0.795 0.886 0.886 0.713 0.699 0.429 0.114 0.191 0.218 0.102 0.102 0.152 0.050 0.700 TYP. MAX. 5 2.65 1.6 0.039 0.022 0.030 0.060 0.710 MIN. inch TYP. MAX. 0.197 0.104 0.063
DIM.
OUTLINE AND MECHANICAL DATA
Multiwatt15 V
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