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STK433-890N-E 数据表(PDF) 11 Page - Sanyo Semicon Device

部件名 STK433-890N-E
功能描述  4channel class-AB Audio Power IC 80W4ch
Download  12 Pages
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制造商  SANYO [Sanyo Semicon Device]
网页  https://www.sanyo-av.com/us/
标志 SANYO - Sanyo Semicon Device

STK433-890N-E 数据表(HTML) 11 Page - Sanyo Semicon Device

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STK433-890N-E
No.A2109-11/12
STK433-800 series Stand-by Control & Mute Control & Load-Short Protection
Application
12
13
14
15
11
10
9
8
7
6
5
4
3
2
1
-PRE
10k
Ω
10k
Ω
10k
Ω
2.2k
Ω
1.3k
Ω
0.22
Ω
0.22
Ω
33k
Ω
2k
Ω
1k
Ω
33
μF
/10V
Mute Control
H : Single Mute
L : Normal
Stand-by Control(ex)
H : Operation Mode(+5V)
L : Stand-by Mode(0V)
Ch2 OUT
Ch1 IN
GND
Ch2 IN
GND
GND
+VCC
-VCC
(*1) The impression voltage of a Stand-by terminal (#13) is
the maximum rating(VSTmax).
Please set up not to exceed.
Stand-by Control
+5V
+5V
MUTE
ST-BY
ST-BY
PLAY
MUTE
Mute Control
GND
Ch1 OUT
SUB.GND
56k
Ω
100pF
3pF
56k
Ω
1k
Ω
1k
Ω
4.7k
Ω
4.7k
Ω/1W
1.8k
Ω
1.8k
Ω
3pF
100
μF
/100V
100
μF
/100V
100
μF
/100V
100
μF
/100V
0.1
μF
4.7k
Ω/1W
0.1
μF
4.7k
Ω/1W
0.1
μF
3
μH
4.7k
Ω
3
μH
4.7k
Ω
3
μH
10
μF
/10V
10
μF
/10V
100
Ω
/1W
100
Ω/1W
-VCC +VCC Ch1
OUT
Ch1
OUT
Ch2
OUT
Ch2
OUT +PRE
STK433-800 series
SUB GND Ch1
IN
Ch1
NF ST-BY
Ch2
NF
Ch2
IN
16
17
18
19
Ch3
IN
Ch4
IN
Ch4
NF
Ch3
IN
+
+
+
+
+
+
GND
GND
Ch3 OUT
4.7k
Ω/1W
0.1
μF
4.7k
Ω
3
μH
Ch4 OUT
2.2
μF
2.2
μF
2.2
μF
/50V
1k
Ω
1k
Ω
56k
Ω
3pF
+
Ch3 IN
+
+
+
10k
Ω
10k
Ω
2.2
μF
Ch4 IN
+
100pF
100pF
100pF
1.8k
Ω
10
μF
/10V
+
1.8k
Ω
10
μF
/10V
+
20
21
22
23
Ch3
OUT
Ch4
OUT
Ch4
OUT
Ch3
OUT
56k
Ω
3pF
[STK433-800 series Stand-By Control Example]
[Feature]
• The pop noise generated when power supply ON/OFF by using recommendation Stand-By Control Application can be
improved.
• Stand-By Control can be done by additionally adjusting the limitation resistance (*1) to the voltage such as Micro
computer, the set design is easy.
(Reference circuit) STK433-800 series test circuit To Stand-By Control added +5V.
12
13
14
15
11
10
9
8
7
6
5
4
3
2
1
-PRE -VCC +VCC
Ch1
OUT
Ch1
OUT
Ch2
OUT
Ch2
OUT
18
17
16
19
Ch3
IN
Ch3
NF
Ch3
Ch2
OUT
+PRE
STK433-800series
SUB
GND
Ch1
IN
ΔVBE
Δ VBE
IST
Bias Circuit
in PreDriver IC
Stand-by Control
H : Operation Mode(+5V)
L : Stand-by Mode(0V)
#13pin Stand-By OFF threshold.
Ch1
NF
ST-
BY
Ch2
NF
Ch2
IN
1.3k
Ω
(*1)
33k
Ω
2k
Ω
(*4)
1k
Ω
33
μF
(*3)
+
2.2k
Ω (*2)
VST
Ex)Stand-By Control Voltage VST=+5V
VST is set by the limitation resistance(*1).
.IST=(VST-VBE × 2)/((*1)+(*2))
=(5v-0.6v
× 2)/(2.2kΩ+1.3kΩ)
≅1.09(mA)
[Operation explanation]
1) #13pin Stand-By Control Voltage VST
(1) Operation Mode
SW transistor of Stand-By Circuit is turned on when VST
≥ 2.5V or more is impressed, and the power amplifier
works.
ex) VST = 3.0V
VST = (*2)
× IST+0.6V → 3.0V = 2.2kΩ × IST+0.6V
Therefore, IST
≅1.09mA
(2) Stand-By Mode
VST
≤ 0.6V or less turns off the SW transistor of Stand-By Circuit by (typ 0V), and the amplifier stops.
ex) VST = 0.6V
VST = (*2)
× IST+0.6V → 0.6V = 2.2kΩ × IST+0.6V
Therefore, IST
≅0mA


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