SANYO STK4112II Datasheet
Ordering number: EN2322B
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Thick Film Hybrid IC
STK4112 II
AF Power Amplifier (Split Power Supply)
(10W + 10W min, THD = 0.4%)
Features
• The STK4102II series (STK4112II) and STK4101V
series (high-grade type) are pin-compatible in the output range of 6W to 50W and enable easy designing.
• Small-sized package whose pin assignment is the same
Package Dimensions
unit: mm
4083
[STK4112 II ]
as that of the STK4101II series
• Built-in muting circuit to cut off various kinds of pop
noise
• Greatly reduced heat sink due to substrate temperature
125 ° C guaranteed
• Excellent cost performance
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 4
30 to +125
V
s
= ± 17V, R
CC
= 8 Ω , f = 50Hz, Po = 10W 2 s
L
26 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
17 V
Ω
70397HA (ID) / 0138YT / 2018TA No. 2322—1/8
STK4112 II
Operating Characteristics
Parameter Symbol Conditions min typ max Unit
Quiescent current Icco V
Output power
Total harmonic distortion THD Po = 1.0W, f = 1kHz 0.3 %
Frequency response f
Input impedance ri Po = 1.0W, f = 1kHz 55 k Ω
Output noise voltage V
Neutral voltage V
Muting voltage V
Notes. For power supply at the time of test, use a constant-voltage power
supply unless otherwise specified.
For measurement of the available time for load short-circuit and output noise voltage, use the specified transformer power supply shown
right.
The output noise voltage is represented by the peak value on rms
scale (VTVM) of average value indicating type. For AC power supply,
use an AC stabilized power supply (50Hz) to eliminate the effect of
flicker noise in AC primary line.
at Ta = 25 ° C, V
R
: non-inductive load
L
Po (1)
Po (2)
, f
L
H
NO
N
M
= ± 17V, R
CC
= ± 20.5V 20 40 100 mA
CC
THD = 0.4%,
f = 20Hz to 20kHz
= ± 14V, THD = 1.0%,
V
CC
R
= 4 Ω , f = 1kHz
L
Po = 1.0W, dB 20 to 50k Hz
V
V
+0
–3
= ± 20.5V, Rg = 10k Ω
CC
= ± 20.5V -70 0 70 mV
CC
= 8 Ω , Rg = 600 Ω , VG = 40dB,
L
10 W
10 W
-2 -5 -10 V
1.2 mVrms
Specified Transformer Power Supply
(Equivalent to RP-22)
Equivalent Circuit
No. 2322—2/8
STK4112 II
Sample Application Circuit
10W min 2-channel AF power amplifier
Sample Printed Circuit Pattern for Application Circuit
(Cu-foiled side)
No. 2322—3/8
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