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參數資料
| 型號： | LC723784 |
| 廠商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP100 |
| 封裝： | 14 X 20 MM, QIP-100 |
| 文件頁數： | 2/14頁 |
| 文件大?。?/td> | 474K |
| 代理商： | LC723784 |
LC723781N/723782N/723783N/723784/723785
No.8011-10/14
Continued from preceding page.
Pin name
Pin No.
I/O
Pin explanation
Equivalent circuit
FMIN
95
I
FM VCO (local oscillator) input.
This pin is selected with CW1 in the PLL instruction.
The signal input to this pin must be capacitor coupled.
Input is disabled in Backup mode, after a power on reset, and in the
PLL stopped state.
AM VCO (local oscillator) input.
This pin is selected and the band set with CW1 (b1, b0) in the PLL
instruction.
b1
b0
Band
1
0
2 to 40MHz (SW, AM upconversion)
1
0.5 to 10MHz (MW, LW)
AMIN
94
I
The signal input to this pin must be capacitor coupled.
Input is disabled in Backup mode, after a power on reset, and in the
PLL stopped state.
Sub-charge pump output and general-purpose input shared function
port.
The IOS2 instruction is used for switching between the sub-charge
pump output and general-purpose input functions.
When used as the sub-charge pump output :
The sub-charge pump output function is set up with the IOS2
instruction.
A high-speed locking circuit can be formed by using this pin in
conjunction with the main charge pump.
The sub-charge pump is controlled using the DZC instruction.
b3
b2
Operation
0
High impedance
0
1
Only operates when the PLL is unlocked
(450kHz)
1
0
Only operates when the PLL is unlocked
(900kHz)
1
Normal operation
SUBPD
92
I/O
When used as a general-purpose input :
The general-purpose input function is set up with the IOS2
instruction.
Data is read from the port using the INR instruction.
This pin goes to the high-impedance state in Backup mode, after a
power on reset, and in the PLL stopped state.
INEO
91
I
Dedicated input port.
Data is read from the port using the INR instruction
Input is disabled in Backup mode.
Continued on next page.
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