參數(shù)資料
型號(hào): UPD178023
廠商: NEC Corp.
元件分類(lèi): 8位微控制器
英文描述: 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
中文描述: 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存
文件頁(yè)數(shù): 26/56頁(yè)
文件大?。?/td> 261K
代理商: UPD178023
26
μ
PD178023, 178024
Data Sheet U14126EJ1V0DS00
3.7 PLL Frequency Synthesizer
Figure 3-11. Block Diagram of PLL Frequency Synthesizer
Internal Bus
Internal Bus
PLL Mode
Select Register
(PLLMD)
VCOL
DMD
DMD
PLL
Data Transfer
Register (PLLNS)
PLL
NS0
PLL
MD0
PLL
MD1
PLL
RF2
PLL
RF1
PLL
RF0
PLL
UL0
PLL Reference
Mode Register
(PLLRF)
PLL Unlock
F/F Judge Register
(PLLUL)
PLL
RF3
2
Input Select
Block
Programmable
Divider
Phase
Comparator
( -DET)
Unlock
F/F
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
Lowpass
Filter
Note
Note
VCOH
Note
External circuit.
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