Ordering number : EN4546A
Thick Film Hybrid IC
STK4038 II
AF Power Amplifier (Split Power Supply)
(60 W min, THD = 0.4%)
Features
Package Dimensions
• Compact packaging supports slimmer set designs
• Series designed for 20 up to 200 W and pincompatibility
• Simpler heat sink design facilitates thermal design of
slim stereo sets
• The pulse noises associated with turning the power on
and off have been reduced by the adoption of fixed
current circuits
• 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
4033
[STK4038II]
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Symbol
Condition
Rating
Unit
VCC max
±57
V
θj-c
1.4
°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 = ±38 V, RL = 8 Ω, f = 50 Hz, PO = 60 W
2
s
Recommended Operating Conditions at Ta = 25°C
Parameter
Recommended supply voltage
Load resistance
Symbol
Condition
Rating
VCC
Unit
±38
V
8
Ω
RL
Operating Characteristics at Ta = 25°C, VCC = ±38 V, RL = 8 Ω, VG = 40 dB, Rg = 600 Ω, RL (non-inductive)
Parameter
Symbol
Condition
Rating
min
typ
max
10
THD = 0.4%, f = 20 Hz to 20 kHz
60
W
PO (2)
Output power
VCC = ±45.5 V
PO (1)
Quiescent current
VCC = ±32.5 V, THD = 1.0%, RL = 4 Ω, f = 1 kHz
60
W
ICCO
Total harmonic distortion
THD
PO = 1.0 W, f = 1kHz
Frequency response
fL, fH
PO = 1.0 W, +0 dB
–3
PO = 1.0 W, f = 1kHz
20
Input resistance
ri
Output noise voltage
Neutral voltage
VNO *2
VN
0.3
20 to 50k
mA
%
Hz
55
VCC = ±45.5 V, Rg = 10 kΩ
VCC = ±45.5 V
50
Unit
kΩ
1.2
–70
0
mVrms
+70
mV
Note: Use rated power supply for test unless otherwise specified.
1. Use the transformer power supply shown on the next page when measuring the available time for load shorted and the output noise voltage.
2. Output noise voltage represents the peak value on the rms scale (VTVM). The noise voltage waveform does not include the pulse noise.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
N3096HA (OT)/83093YO 5-2308 No. 4546-1/3
