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參數(shù)資料
| 型號： | STK301-220 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Multiplexer IC; Multiplexer Type:Analog; No. of Channels:8; Package/Case:28-PLCC; Leaded Process Compatible:No; Leakage Current:20uA; On-Resistance, Rds(on):90ohm; Peak Reflow Compatible (260 C):No; Mounting Type:Surface Mount RoHS Compliant: No |
| 中文描述： | 7頻段，2通道電子圖形均衡器 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大?。?/td> | 167K |
| 代理商： | STK301-220 |
No. 4793-4/8
STK301-220
Pin Descriptions
Pin No.
Pin name
Functions
1
+V
CC
1
Power supply pin used for + power supply to IC2 and IC3 graphic equalizer.
2, 21
DC
Pin for 1/2 V
CC
1 decoupling capacitor of graphic equalizer IC. When shortened, power supply becomes more effective and
ripples are vulnerable.
3
OUTPUT 1
Output pin 1.
4
NF 1
Inverting input for the graphic equalizer IC2 internal operational amplifier.
5
1IN 1
Audio signal input 1 (INPUT1) for electronic volume control IC1
Input impedance for input pin 1 rated at approximately 60 k
(1 kHz, flat).
Audio signal input 2 (INPUT1) for electronic volume control IC1
6
INPUT 1
7
1IN 2
8
V
SS
Power supply pin connected to ground (GND).
9
V
EE
Power supply pin used for audio signal power supply to electronic volume control section. When single power supply is used,
connect to V
SS
.
10
CLK
Input pin for data from CPU according to Schmitt inverter format.
11
DI
Input pin for clock from the CPU according to Schmitt inverter format.
12
+V
CC
2
Power supply pin rated at +5 V (typ). Make sure that V
CC
2 does not onset before V
DD
.
Power supply pin for ground (- power supply) of IC2 and IC3 graphic equalizer.
13
GND (–V
CC
1)
V
DD
14
Power supply pin used for audio signal power supply to electronic volume control section.
Select pin for applications using two ICs. Input “1” to initiate key code 7C3 for
connecting to V
DD
. Input “0” to initiate key code 7C2 for connecting to V
EE
.
15
S
16
2IN 2
Audio signal input 2 (INPUT2) for electronic volume control IC1
Input impedance for input pin 2 rated at approximately 60 k
(1 kHz, flat).
Audio signal input 1 (INPUT2) for electronic volume control IC1
17
INPUT 2
18
2IN 1
19
NF 2
Inverting input for the graphic equalizer IC3 internal operational amplifier.
20
OUTPUT 2
Output pin 2.
Note: Refer to LC7522 or LC7523 specifications concerning pins which do not appear here and are hybrid IC (HIC) pins connected directly to a LC7522 or
LC7523 pins.
Description of Operation
The STK301-220 is a hybrid IC (HIC) with a 7-component 2-channel construction for electronically controlled graphic
equalizer applications. It employs an LC7522 for graphic equalizer electronic volume control and an M5229 for 7-
component graphic equalizer functions.
Figure 1 Equivalent Circuit Block Diagram
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