SANYO STK4042V

Ordering number : EN4390A
Thick Film Hybrid IC
STK4042V
AF Power Amplifier (Split Power Supply)
(80 W min, THD = 0.08%)
Features
Package Dimensions
• Compact packaging supports slimmer set designs
• Series designed from 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
unit : mm
4075
[STK4042V]
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Symbol
Conditions
Ratings
Unit
VCC max
±65
V
θj-c
1.2
°C/W
Junction temperature
Tj
150
°C
Operating substrate temperature
Tc
125
°C
–30 to +125
°C
Thermal resistance
Storage temperature
Tstg
Available time for load shorted
ts *1
VCC = ±45 V, RL = 8 Ω, f = 50 Hz, PO = 80 W
1
s
Recommended Operational Voltage at Ta = 25°C
Parameter
Recommended supply voltage
Load resistance
Symbol
Conditions
Ratings
VCC
RL
Unit
±45
V
8
Ω
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
N3096HA (OT)/31993YO 5-2171 No. 4390-1/5
STK4042V
Operating Characteristics
at Ta = 25°C, VCC = ±45 V, RL = 8 Ω, VG = 40 dB, Rg = 600 Ω, 100k 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)
THD
fL, fH
ri
VNO *2
VN
Conditions
min
VCC = ±54 V
15
THD = 0.08%, f = 20 Hz to 20 kHz
80
typ
Unit
120
mA
W
PO = 1.0 W, f = 1 kHz
0.08
+0
PO = 1.0 W,
dB
–3
PO = 1.0 W, f = 1 kHz
%
20 to 50k
Hz
55
VCC = ±54 V, Rg =10 kΩ
VCC = ±54 V
max
–70
0
kΩ
1.2
mVrms
+70
mV
Note: Use rated power supply for test unless otherwise specified.
*1
When measuring permissible load short time and output noise voltage use transformer power supply indicated below.
*2
Output noise voltage represents the peak value on the rms scale (VTVM). The noise voltage waveform does not include the pulse noise.
Equivalent Circuit
No. 4390-2/5
STK4042V
Application Circuit: 80W min Single Channel AF Power Amplifier
Sample Printed Circuit Pattern for Application Circuit (Copper-foiled side)
No. 4390-3/5
STK4042V
Description of External Parts
: Input filter circuit
R1, C1
• Reduces high-frequency noise.
C2
: 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
R2
• 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.
R4, R5
: NFB circuit (AC NF circuit). Use of resistor with 1% error is suggested.
C3 (R2)
R3
R6, R7
:
:
R7, C4
:
C6, C9
:
C8
:
C5
R8, C10
R9, C13
C11, C12
:
:
:
:
R10
:
R14, L1
:
• VG settings are obtained using R4 and R5 according to the following equation:
R
log20· R5
40 dB is recommended.
4
• Low-frequency cutoff frequency settings are obtained using R4 and C3 according to the following
equation:
1
fL = 2π·R ·C
[Hz]
4 3
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.
Output resistor
Increases load shorting endurance capacity during times of high output.
For oscillation suppression applications
Increases oscillation stability against capacitance loads.
No. 4390-4/5
STK4042V
Sample Application Circuit (Protection circuit and muting circuit)
■ 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.
■ Anyone purchasing any products described or contained herein for an above-mentioned use shall:
① 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:
➁ 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.
■ 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 November, 1996. Specifications and information herein are subject to
change without notice.
No. 4390-5/5