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Ordering number: EN2322B
Thick Film Hybrid IC
STK4112II
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 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
Package Dimensions
unit: mm
4083
[STK4112II]
Specifications
Maximum Ratings at Ta = 25°C
Parameter |
Symbol |
Conditions |
Ratings |
Unit |
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Maximum supply voltage |
VCC max |
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±26 |
V |
Thermal resistance |
θj-c |
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4 |
°C/W |
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Junction temperature |
Tj |
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150 |
°C |
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Operating substrate temperature |
Tc |
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125 |
°C |
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Storage temperature |
Tstg |
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−30 to +125 |
°C |
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Available time for load short-circuit |
ts |
VCC = ±17V, RL = 8Ω, f = 50Hz, Po = 10W |
2 |
s |
Recommended Operating Conditions at Ta = 25°C |
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Parameter |
Symbol |
Conditions |
Ratings |
Unit |
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Recommended supply voltage |
VCC |
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±17 |
V |
Load resistance |
RL |
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8 |
Ω |
SANYO Electric Co., Ltd. Semiconductor Business Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
70397HA (ID) / 0138YT / 2018TA No. 2322—1/8
STK4112II
Operating Characteristics |
at Ta = 25°C, VCC = ±17V, RL = 8Ω, Rg = 600Ω, VG = 40dB, |
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RL : non-inductive load |
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Parameter |
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Symbol |
Conditions |
min |
typ |
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max |
Unit |
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Quiescent current |
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Icco |
VCC = ±20.5V |
20 |
40 |
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100 |
mA |
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Po (1) |
THD = 0.4%, |
10 |
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W |
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f = 20Hz to 20kHz |
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Output power |
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Po (2) |
VCC = ±14V, THD = 1.0%, |
10 |
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W |
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RL = 4Ω, f = 1kHz |
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Total harmonic distortion |
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THD |
Po = 1.0W, f = 1kHz |
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0.3 |
% |
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Frequency response |
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f , f |
Po = 1.0W, +0 dB |
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20 to 50k |
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Hz |
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L H |
–3 |
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Input impedance |
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ri |
Po = 1.0W, f = 1kHz |
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55 |
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kΩ |
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Output noise voltage |
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VNO |
VCC = ±20.5V, Rg = 10kΩ |
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1.2 |
mVrms |
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Neutral voltage |
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VN |
VCC = ±20.5V |
-70 |
0 |
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70 |
mV |
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Muting voltage |
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VM |
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-2 |
-5 |
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-10 |
V |
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Notes. |
For power supply at the time of test, use a constant-voltage power |
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supply unless otherwise specified. |
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For measurement of the available time for load short-circuit and out- |
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put noise voltage, use the specified transformer power supply shown |
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right. |
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The output noise voltage is represented by the peak value on rms |
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scale (VTVM) of average value indicating type. For AC power supply, |
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use an AC stabilized power supply (50Hz) to eliminate the effect of |
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flicker noise in AC primary line. |
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Specified Transformer Power Supply
(Equivalent to RP-22)
Equivalent Circuit
No. 2322—2/8
STK4112II
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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