參數(shù)資料
型號(hào): LA74303FN
廠商: SANYO SEMICONDUCTOR CO LTD
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, QCC24
封裝: 4 X 4 MM, VQFN-24
文件頁數(shù): 11/11頁
文件大小: 210K
代理商: LA74303FN
LA74303FN
No.A1181-9/18
LA74303FN Internal Equivalent Diagram and Recommended Circuit Diagram
Table 1: Logic of external capacitor charging circuit
SERIAL
No.2
ON
0
OFF
1
Initially “ON”
Table 2: LPF SW control logic
SERIAL
No.5
No.6
A
1
*
B
0
C
0
1
*) Don’t care.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
+
ALC
LPF2
MUTE
+
-
+
-
EVR
LOGIC
VREF
DET
CHARGE
Refer to table
below 1.
LPF1
A
B
C
MIC
0.01
μF
0.01
μF
0.47
μF
0.01
μF
0.1
μF
0.047
μF
4.7
μF
VCCSP
3.3V
SPK
Mix ratio
1:1
VCCA
3V
LPF
For SW control,
refer to table below 2.
2.2k
Ω
MIC
IN
MIC
GND
REC
OUT
A GND
PB IN
DATA
CLOCK
C.S
LINE
OUT
STANDBY
CTL: LOW
BEEP IN
SPK
GND
220k
Ω
10k
Ω
0.1
μF
MIC VCC
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