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Ordering number: EN1677B
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Thick Film Hybrid IC
STK4042 XI
AF Power Amplifier (Split Power Supply)
(80W min, THD = 0.008%)
Features
• Small-sized package permitting audio sets to be made
Package Dimensions
unit: mm
slimmer.
• The STK4018XI series are available for output 50W to
80W and are pin-compatible.
4075
[STK4042 XI ]
• Facilitates thermal design of slim stereo sets.
• The use of a current mirror circuit, cascode circuit, pure
complementary circuit provides low distortion (0.008%
/ 100kHz, LPF ON).
• Possible to design electronic supplementary circuits
(pop noise muting at the time of power ON/OFF, load
short protector, thermal shutdown)
Specifications
Maximum Ratings
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage V
Thermal resistance
Junction temperature Tj 150
Operating substrate temperature Tc 125
Storage temperature Tstg
Available time for load short-circuit t
at Ta = 25 ° C
max
CC
j-c 1.2
30 to +125
*1 V
s
= ± 46.5V, R
CC
= 8 Ω , f = 50Hz, P
L
= 80W 1 s
O
67 V
C/W
C
C
C
Recommended Operating Conditions
Parameter Symbol Conditions Ratings Unit
Recommended supply voltage V
Load resistance R
CC
L
SANYO Electric Co., Ltd. Semiconductor Business Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
at Ta = 25 ° C
46.5 V
Ω
61297HA (ID) / 8298MO / 4015MY, TS No. 1677—1/5
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STK4042 XI
Operating Characteristics
at Ta = 25 ° C, V
= ± 46.5V, R
CC
Rg = 600 Ω , 100kHz-LPFon:
Parameter Symbol Conditions min typ max Unit
Quiescent current I
Output power P
CCO
O
Total harmonic distortion THD P
Frequency response f
Input impedance r
Output noise voltage V
Neutral voltage V
, f
L
H
i
*2 V
NO
N
Notes. For power supply at the time of test, use a constant-voltage power supply
unless otherwimse specified.
*1 For measurement of the available time for load short-circuit and output
noise voltage, use the specified transformer power supply shown below.
*2 The output noise voltage is represented by the peak value on the rms
scale (VTVM) of average value indicating type. The noise voltage waveform includes no flicker noise.
V
= ± 56V 15 120 mA
CC
THD = 0.008%,
f = 20 to 20kHz
= 1W, f = 1kHz 0.008 %
O
+0
Po = 1W, dB 20 to 50k Hz
−
3
P
= 1W, f = 1kHz 55 k Ω
O
= ± 56V, Rg = 10k Ω
CC
V
= ± 56V -70 0 +70 mV
CC
= 8 Ω (noninductive load), VG = 40 dB,
L
80 W
1.2 mVrms
Specified transformer power supply
(Equivalent to MG-200)
Equivalent Circuit
No. 1677—2/5