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參數(shù)資料
| 型號： | UPD17071GB-012-1A7 |
| 廠商： | NEC Corp. |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCONTROLLER WITH PLL FREQUENCY SYNTHESIZER CONTROLLER FOR PORTABLE FM/AM RADIO AND TV |
| 中文描述： | 4位單片機與鎖相環(huán)頻率合成器控制器的便攜式調(diào)頻/調(diào)幅廣播電視 |
| 文件頁數(shù)： | 14/48頁 |
| 文件大?。?/td> | 296K |
| 代理商： | UPD17071GB-012-1A7 |
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μ
PD17071GB-012
14
Pin No.
Symbol
Pin Name
Description
I/O Form
55
Japan Wide/ FM setting input
100 k/200 k
This pin inputs an FM receive frequency band and setting of a channel
space. The setting differs depending on the destination region.
The setting is read only on application of V
DD
(power-ON reset) or when
the CE pin (pin 50) goes high (CE reset); otherwise, it is ignored.
Input
(1) When the destination region is Japan (Japan Wide)
Sets an FM receive frequency band.
Input as follows:
High-level input: 76.0 to 108.0 MHz
Low-level input: 76.0 to 90.0 MHz
(2) When the destination region is the U.S.A. (100 k/200 k)
Sets the channel space of the FM band.
Input as follows:
High-level input: 100-kHz step
Low-level input: 200-kHz step
(3) When the destination region is China (100 k/200 k)
Sets the channel space of the FM band.
Input as follows:
High-level input: 50-kHz step
Low-level input: 100-kHz step
56
CLKENA
Watch function
selection input
This pin inputs the setting for whether the watch function is used or not.
The setting is read only on application of V
DD
(power-ON reset) or
when the CE pin (pin 50) goes high (CE reset); otherwise, it is ignored.
Input as follows:
High-level input: Watch function used.
Low-level input: Watch function not used.
Input
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