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| 型號(hào)： | LA3410 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | VCO Non-Adjusting PLL FM MPX Stereo Demodulator with FM Accessories(帶FM附件VCO無(wú)需調(diào)整PLL FM MPX立體聲解調(diào)器) |
| 中文描述： | 壓控振蕩器非盈豐調(diào)整鎖相環(huán)調(diào)頻立體聲調(diào)頻解調(diào)器與配件（帶調(diào)頻附件壓控振蕩器無(wú)需調(diào)整盈豐鎖相環(huán)調(diào)頻立體聲解調(diào)器） |
| 文件頁(yè)數(shù)： | 4/13頁(yè) |
| 文件大?。?/td> | 449K |
| 代理商： | LA3410 |
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LA3410
No.1407–4/13
External Parts
Note 1 : IF C9, C10 are polarized capacitors, refer to “VCO Stop Method
” shown below
Note 2 : For loop filter constants (C9, C10, R8), refer to 4. Capture range and PLL loop filter constants on page 5 and set
these constants to the optimum values for the input pilot level.
Voltage on Each Pin and Pin Name
Proper Cares in Using IC
1. VCO stop method
One of the following is used to stop VCO. The monaural mode is forced to be entered at the time of VCO stop.
(1) VCO stop method
(a) For loop filter capacitors (C9, C10 in Fig. 1), use one of the following.
(1) Non-polarized capacitor
(2) Polyester film capacitor
[Reason] When in the VCO stop mode, external voltage V
S
causes an
unpolarized voltage of approximately 1.5V to be developed
across pins 14 and 15.
(b) Setting of external voltage V
S
and limiting resistor R
S
.
The relation between V
S
and R
S
is shown in Fig. 9. When in the VCO stop mode, the value of R
S
must be set so
that the voltage on pin 11 is within the specified range (min=5.5V, max=V
CC
–3V). For example, it is seen from
Fig. 9 that the value of limiting resistor R
S
is approximately 4.2k
when the voltage on pin 11 is set to 6V at
V
S
=12V.
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