STK4121V_1_3.PDF

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Ordering number : EN4477A 477
Thick Film Hybrid IC
STK4121V
AF Power Amplifier (Split Power Supply)
(15 W + 15 W min, THD = 0.08 %)
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.
Package Dimensions
unit: mm
4040
[STK4121V]
Specified Transformer Power Supply (RP-22 equivalent)
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
V CC max
±32
V
Thermal resistance
q
j-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
V CC = ±21.5 V, R L = 8
½
, f = 50 Hz, P O = 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
½
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
43097HA (OT)/73093YO 5-2191 No. 4477-1/3
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STK4121V
Operating Characteristics
at Ta = 25°C, V CC = ±21.5 V, R L = 8
½
, Rg = 600
½
, VG = 40 dB, R L : non-inductive load
Ratings
Parameter
Symbol
Conditions
Unit
min
typ
max
Quiescent current
I CCO
V CC = ±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)
V CC = ±18 V, THD = 0.2%, R L = 4 ½ , f = 1 kHz
15
W
Total harmonic distortion
THD
P O = 1.0 W, f = 1 kHz
0.08
%
Frequency response
f L , f H
P O = 1.0 W,
+0
dB
20 to 50 k
Hz
–3
Input impedance
r i
P O = 1.0 W, f = 1 kHz
55
k ½
Output noise voltage
V NO
V CC = ±26 V, Rg = 10 k ½
1.2 mVrms
Neutral voltage
V N
V CC = ±26 V
–70
0
+70
mV
Muting voltage
V M
–2
–5
–10
V
Unit ( resistance:
½
, capacitance:F)
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
No. 4477-2/3
11031078.003.png 11031078.004.png 11031078.005.png
STK4121V
Sample Application Circuit: 15 W (minimum) 2-channel AF power amplifier
Unit ( resistance:
½
, capacitance:F)
n
No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace
equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of
which may directly or indirectly cause injury, death or property loss.
n
Anyone purchasing any products described or contained herein for an above-mentioned use shall:
À
Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and
distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all
damages, cost and expenses associated with such use:
Á
Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on
SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees
jointly or severally.
n
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for
volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied
regarding its use or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of April, 1997. Specifications and information herein are subject to change
without notice.
No. 4477-3/3
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