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參數資料
| 型號： | LC723663 |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP80 |
| 封裝： | 14 X 20 MM, QIP-80 |
| 文件頁數： | 12/12頁 |
| 文件大小： | 215K |
| 代理商： | LC723663 |
LC723661, 723662, 723663
No.0460-9/12
Continued from preceding page.
Pin name
Pin No.
I/O
Pin explanation
Equivalent circuit
XIN
XOUT
1
80
I
O
Connections for 4.5MHz/7.2MHz crystal oscillator element
EO1
EO2
78
77
O
Main charge pump outputs.
These pins output a high level when the frequency of the local
oscillator divided by n is higher than that of the reference frequency,
and they output a low level when that frequency is lower.
They go to the high-impedance state when the frequencies match.
These pins go to the high-impedance state in Backup mode, after a
power on reset, and in the PLL stopped state.
VDDPORT
VDDPLL
31
73
-
+ pin of power supply (These pins must connected to VDD.)
The VDDPORT pin is mainly supply power for the peripheral I/O
blocks.
The VDDPLL pin is mainly for the PLL circuits and the regulator.
VSSCPU
VSSPORT
VSSADC
VSSPLL
4
32
65
76
Power supply ground pin (These pins must be connected to ground.)
The VSSPORT pin is mainly supply power for the peripheral I/O
blocks.
The VSSPLL pin is mainly for the PLL circuits and the regulator.
The VSSCPU pin is mainly used by the CPU block.
The VSSADC pin is mainly used by the ADC block.
VREG
3
O
Internal low voltage output.
Connect a bypass capacitor to this pin.
FMIN
75
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
74
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.
HCTR
72
I
Universal counter and general-purpose input shared function input port.
The IOS1 instruction is used for switching between the universal
counter and general-purpose input functions.
When used for frequency measurement :
The universal counter function is set up with the IOS1 instruction.
The counter is controlled using UCS and UCC instructions.
Since this pin functions as an AC amplifier in this mode, the input
signal must be input with capacitor coupling.
When used as a general-purpose input pin :
The general-purpose input function is set up with the IOS1
instruction.
Data is read from the port using the INR (b0) instruction.
Input is disabled in Backup mode. (The input pin will be pulled down.)
The universal counter function is selected after a power on reset.
Continued on next page.
ILC05534
XIN
XOUT
ILC05535
ILC05536
PLL Stop instruction
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