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Numéro de référence | KA9270D | ||
Description | AUDIO FILTER INTRODUCTION | ||
Fabricant | Samsung | ||
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1 Page
KA9270
INTRODUCTION
The KA9270 is a monolithic integrated circuit designed for audio
filter. It is used in compact disc player, digital audio tape recorder,
etc.
AUDIO FILTER
20-DIP-300A
FEATURES
• Functions: * Buffer for impedence matching
* Low pass filter
* De - emphasis control
* Mute control
* Reference voltage circuit ( 1/2 VCC AMP )
• Gain adjustable of audio output
• Minimum number of external parts required
• Recommand operation supply voltage range : 5.0 ~ 12.0V
BLOCK DIAGRAM
20-SOP-375
Device
KA9270
KA9270D
Package
20-DlP-300A
20-SOP- 375
Operating Temperature
20°C ~ +75°C
LPF
OUTPUT2
LPF2B
VREF
20 19 18 17
RIPPLE
16
DE-EMPHA DE-EMPHA DE-EMPHA
CTL OUT2
IN3
15 14 13
BUFFER
OUT2
12
Vcc
INPUT2
11
LPF2
-
+
-
+
1/2Vcc-AMP
DE-AMP2
-
+
-
+
BUFFER2
+
-
LPF1
MUTE
SW
DE-EM
SW
+
-
DE-AMP1
BUFFER1
+
-
1
GND
2
LPF
OUTPUT1
3
LPF1B
4
MUTE
CONTROL
INPUT
56 7 8 9
DE-EMPHA DE-EMPHA DE-EMPHA DE-EMPHA BUFFER
CONTROL CTL
OUT1
IN1
OUT1
INPUT
10
INPUT1
Fig. 1
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Pages | Pages 7 | ||
Télécharger | [ KA9270D ] |
No | Description détaillée | Fabricant |
KA9270 | AUDIO FILTER INTRODUCTION | Samsung |
KA9270D | AUDIO FILTER INTRODUCTION | Samsung |
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