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參數(shù)資料
| 型號： | LA1838 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Single-Chip Home Stereo IC with Electronic Tuning Support(帶電子調諧的家庭立體聲芯片) |
| 中文描述： | 單芯片家用音響集成電路與電子調諧支持（帶電子調諧的家庭立體聲芯片） |
| 文件頁數(shù)： | 4/9頁 |
| 文件大?。?/td> | 110K |
| 代理商： | LA1838 |
Pin No.
Pin function
Pin voltage
Notes
Equivalent circuit
Vreg – 1.4
V
CC
Vreg
Coil Specifications
AM oscillator (for the DUT)
HW-50425 (Mitsumi)
Pin Functions
IFT
YD-1073-1 (Mitsumi)
No. 5888-4/9
LA1838
3
1
2
4
6
A10633
-
2T
-
9T
-
x
86T
Q
O
≥
80
L = 270
μ
H
3
1
2
4
S
S
6
YD-1073
SFU450B
A10634
-
x
58T
-
7T
-
94T
f
O
= 450 kHz
Q
O
= 110
A 180-pF capacitor is built in
With an external SFU450B
FM IF input
AM mixer output
1
2
Input impedance r
i
= 330
Connect the mixer coil between this pin and V
CC
1
3
A10635
2
A10636
1
3
A10635
Vreg
FM IF input
bypass
3
Also used for the MPX regulator filter
4
A10637
Vreg
0 V
AM IF input
GND
4
5
Input impedance r
i
= 2 k
6
7
A10638
V
CC
V
CC
TU-LED
ST-LED,
AF-IF output
6
7
Active low
Open collector
AM stereo IF output (pin 7)
The influx current must be held under 150 μA.
A10639
9
28
V
CC
FM detector
9
The CDA10.7 MG74 (Murata Mfg. Co., Ltd.) is
recommended as the ceramic discriminator. A
device with a series resistance of 270
must be
used.
V
CC
8
Continued on next page.
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| LA1851N | DTS Single-chip Tuner IC |
| LA1862M | Single-chip Tuner System for Car Stereo(用于汽車立體聲的單芯片調諧器) |
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