SANYO STK4121V Datasheet
Ordering number : EN4477A477
43097HA (OT)/73093YO 5-2191 No. 4477-1/3
STK4121V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
AF Power Amplifier (Split Power Supply)
(15 W + 15 W min, THD = 0.08 %)
Thick Film Hybrid IC
Features
• Built-in muting circuit cuts off various kinds of pop
noises.
• Current mirror circuit provides low distortion (THD =
0.08%).
• Pin compatible with the STK4102II series, forming a series
of products with output powers from 15 W/ch to 120 W/ch.
Specified Transformer Power Supply (RP-22 equivalent)
Package Dimensions
unit: mm
4040
[STK4121V]
Specifications
Maximum Ratings at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage V
CC
max ±32 V
Thermal resistance
θj-c 2.6 °C/W
Junction temperature Tj max 150 °C
Operating substrate temperature Tc 125 °C
Storage temperature Tstg –30 to +125 °C
Available time for load short circuit t
s
VCC= ±21.5 V, RL= 8 Ω, f = 50 Hz, PO= 15 W 2 s
Recommended Operating Conditions at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
Recommended supply voltage V
CC
±21.5 V
Load resistance R
L
8 Ω
STK4121V
No. 4477-2/3
Operating Characteristics
at Ta = 25°C, VCC= ±21.5 V, RL= 8 Ω, Rg = 600 Ω, VG = 40 dB, RL: non-inductive load
Ratings
Parameter Symbol Conditions
min typ max
Unit
Quiescent current I
CCO
VCC= ±26 V 20 40 100 mA
Output power P
O
(1) THD = 0.08%, f = 20 Hz to 20 kHz 15 W
P
O
(2) VCC= ±18 V, THD = 0.2%, RL= 4 Ω, f = 1 kHz 15 W
Total harmonic distortion THD P
O
= 1.0 W, f = 1 kHz 0.08 %
+0
Frequency response f
L
, f
H
PO= 1.0 W, dB 20 to 50 k Hz
–3
Input impedance r
i
PO= 1.0 W, f = 1 kHz 55 kΩ
Output noise voltage V
NO
VCC= ±26 V, Rg = 10 kΩ 1.2 mVrms
Neutral voltage V
N
VCC= ±26 V –70 0 +70 mV
Muting voltage V
M
–2 –5 –10 V
Notes
• Use a constant voltage power supply for the test power supply unless otherwise noted.
• Use the transformer power supply shown in the figure above when measuring the available time for load short circuit and the output noise voltage.
• The output noise voltage is the peak value measured with an averaging rms scale volt meter (VTVM). A 50 Hz AC stabilized power supply should be used
to eliminate the effects of AC primary line flicker noise when an AC power supply is used.
Equivalent Circuit
Unit ( resistance: Ω, capacitance:F)
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