參數(shù)資料
型號(hào): UPD178018A
廠商: NEC Corp.
元件分類: 8位微控制器
英文描述: 8-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 8位單晶片微控制器
文件頁數(shù): 21/56頁
文件大?。?/td> 314K
代理商: UPD178018A
21
μ
PD178004A, 178006A, 178016A, 178018A
5.7 PLL FREQUENCY SYNTHESIZER
Figure 5-10. PLL Frequency Synthesizer Block Diagram
Internal Bus
Internal Bus
PLL Mode
Select Register
PWM
Data Transfer Register
PLL
NS0
PLL
MD0
PLL
MD1
PLL
RF2
PLL
RF1
PLL
RF0
PLL
UL0
EO Select
Register
PLL Reference
Mode Register
PLL Unlock
FF Judge
Register
PLL
RF3
2
Input Select
Block
Programmable
Divider
Phase
Comparator
( -DET)
Unlock
FF
Reference
Frequency
Generator
4.5 MHz
4
Charge
Pump
EO1
EO0
VCOH
VCOL
Mixer
2
f
N
f
r
PLL Data Register
(PLLRL, PLLRH, PLLR0)
Voltage
Control
Generator
Low pass
Filter
Note
Note
EOC
ON1
EOC
ON0
Note
External circuit
Cautions 1. Be sure to set EOCON0 to 0.
2. For the
μ
PD178004A and 178006A, do not set EOCON1 to 1.
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