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Ordering number : EN4389A
Thick Film Hybrid IC
STK4030V
AF Power Amplifier (Split Power Supply) (35 W min, THD = 0.08%)
Features
· Compact packaging supports slimmer set designs (up to 70 W) · Series designed for 20 up to 100 W (200 W) and pincompatibility (120 to 200 W have 18 pins) · Simpler heat sink design facilitates thermal design of slim stereo sets · Current mirror circuit application reduces distortion to 0.08% · Supports addition of electronic circuits for thermal shutdown and load-short protection circuit as well as pop noise muting which occurs when the power supply switch is turned on and off
Package Dimensions
unit: mm 4062
[STK4030V]
Specifications
Maximum Ratings at Ta = 25°C
Parameter Maximum supply voltage Thermal resistance Junction temperature Operating substrate temperature Storage temperature Available time for load shorted Symbol VCC max j-c Tj Tc Tstg tS* VCC = ±30 V, RL = 8 , f = 50 Hz, PO = 35 W Conditions Ratings ±45 2.1 150 125 30 to +125 2 Unit V °C/W °C °C °C s
Note: Use a constant-voltage power supply as the test power supply unless otherwise specified. * Use the transformer power supply shown on the next page when measuring the available time for load shorted and the output noise voltage.
Recommended Operating Conditions at Ta = 25°C
Parameter Recommended supply voltage Load resistance Symbol VCC RL Conditions Ratings ±30 8 Unit V
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STK4030V
Operating Characteristics at Ta = 25°C, VCC = ±30 V, RL = 8 , VG = 40 dB, Rg = 600 , 100 k LPF on, RL (non-inductive)
Parameter Quiescent current Output power Total harmonic distortion Frequency response Input resistance Output noise voltage Neutral voltage Symbol ICCO PO (1) PO (2) THD f L, f H ri VNO* VN VCC = ±36 V THD = 0.08%, f = 20 Hz to 20 kHz VCC = ±27 V, THD = 0.2%, RL = 4 , f = 1 kHz PO = 1.0 W, f = 1 kHz +0 PO = 1.0 W, 3 dB PO = 1.0 W, f = 1 kHz VCC = ±36 V, Rg = 10 k VCC = ±36 V 70 20 to 50 k 55 1.2 0 mVrms +70 mV Conditions Ratings min 15 35 40 0.08 % Hz k typ max 120 Unit mA W
Equivalent Circuit
Equivalent Circuit
No. 4389-2/5
STK4030V Application Circuit: 35W min Single Channel AF Power Amplifier
Sample Printed Circuit Pattern for Application Circuit (Copper-foiled side)
No. 4389-3/5
STK4030V Description of External Parts R1, C1 C2 : Input filter circuit · Reduces high-frequency noise. : Input coupling capacitor · DC current suppression. A reduction in reactance is effective because of increases in capacitor reactance at low frequencies and 1/f noise dependence on signal source resistance which result in output noise worsening. : Input bias resistor · Biases the input pin to zero. · Effects VN stability (refer to NF circuit). · Due to differential input, input resistance is more or less determined by this resistance value. : NFB circuit (AC NF circuit). Use of resistor with 1% error is suggested.
R2
R4, R5 C3 (R2)
C3 R4, R5
: AC NF capacitor : Used for VG setting.
R3 R6, R7 R7, C4 C6, C9 C8 C5 R8, C10 R9, C13 C11, C12
: : : : : : : : :
· VG settings are obtained using R4 and R5 according to the following equation: R log20 · 5 40 dB is recommended. R4 · Low-frequency cutoff frequency settings are obtained using R4 and C3 according to the following equation: 1 fL = [ Hz ] 2·R4·C3 When changing the VG setting, you should change R4 which requires a recheck of the low cutoff frequency setting. When the VG setting is changed using R5, the setting should ensure R2 equals R5 so that VN balance stability is maintained. If the resistor value is increased more than the existing value, VN balance may be disturbed and result in deterioration of VN temperature characteristics. Differential constant-current bias resistor For oscillation suppression and phase compensation applications (For use with differential stage applications) For oscillation suppression and phase compensation applications (A Mylar capacitor is recommended for C4 for use with output stage applications) For oscillation suppression and phase compensation applications Power stage (Must be connected near the pin) C6: Positive (+) power C9: Negative () power For oscillation suppression and phase compensation applications (Oscillation suppression before power step clip) For oscillation suppression and distortion improvement applications Ripple filter circuit on positive (+) side. Ripple filter circuit on negative () side. For oscillation suppression applications · Used for reducing power supply impedance to stable IC operation and should be connected near the IC pin. We recommend that you use an electrolytic capacitor.
No. 4389-4/5
STK4030V Sample Application Circuit (Protection circuit and muting circuit)
s No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. s Anyone purchasing any products described or contained herein for an above-mentioned use shall: Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. s Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of October, 1996. Specifications and information herein are subject to change without notice. No. 4389-5/5