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參數資料
| 型號： | KA2285B |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | 5 Dot LED Level Meter Driver(5點LED電平表驅動器) |
| 中文描述： | 5點的LED電平表驅動器（5點的LED電平表驅動器） |
| 文件頁數： | 1/4頁 |
| 文件大小： | 56K |
| 代理商： | KA2285B |
KA2284B/KA2285B
5 DOT LED LEVEL METER DRIVER
INTRODUCTION
The KA2284B/KA2285B are a monolithic integrated circuits designed
for 5-dot LED level meter drivers with a built-in rectifying ampli-
fier; it is suitable for AC/DC level meters such as VU meters or
signal meters.
FEATURES
High gain rectifying amplifier included (G
V
= 26dB).
Low radiation noise when LED turns on.
Logarithmic indicator for 5-dot LED of bar type.
(-10, -5, 0, 3, 6dB)
Constant current output.
KA2284B:l
O
= 15mA Typ.
KA2285B:I
O
= 7mA Typ.
Wide operating supply voltage range: V
CC
= 3.5V ~ 1 6V
Minimum number of external parts required.
BLOCK DIAGRAM
ORDERING IN FORMATION
ú
capacuor to he smined when used as a oc input stgnai meter
Fig. 1
Device
Package
Operating Temperature
I
D
KA2284B
15mA
KA2285B
7mA
1
2
3
4
5
6
7
8
9
_
+
D1
D2
D3
D4
GND
D5
OUTPUT
INPUT
Vcc
REFERENCE VOLTAGE
LED DRIVER
D1
D2
D3
D4
D5
9-SIP
9-SlP
-20
°
C ~ + 80
°
C
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| KA2287B | 5 Dot LED Liear Level Meter Driver(5點LED線性電平表驅動器) |
| KA2287 | 5 DOT LED LINEAR LEVEL METER DRIVER |
| KA2288 | 7 Dot LED Level Meter Driver(7點LED電平表驅動器) |
| KA22900 | AM/FM Tuner + MPX(AM/FM調諧器和多路轉換器) |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| KA2287 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:5 DOT LED LINEAR LEVEL METER DRIVER |
| KA2288 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:7-COT LED LEVEL METER DRIVER |
| KA22900 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:AM/FM TUNER + MPX |
| KA22900-D | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:AM/FM TUNER + MPX |
| KA22901 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:AM/FM TUNER +MPX |
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