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參數(shù)資料
| 型號： | LC72121 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | PLL Frequency Synthesizers for Electronic Tuning |
| 中文描述： | 鎖相環(huán)頻率合成器電子調(diào)諧 |
| 文件頁數(shù)： | 10/22頁 |
| 文件大?。?/td> | 379K |
| 代理商： | LC72121 |
No.
Control block/data
Function
Related data
No. 5815-10/22
LC72121, 72121M, 72121V
Continued from preceding page.
4
I/O port setup data
IOC1,IOC2
Specifies input or output for the shared function I/O pins (IO1 and IO2).
Data = 0: Input port
Data = 1: Output port
5
Output port data
BO1 to BO4
IO1,IO2
Determines the output state of the BO1 through BO4, IO1, and IO2 output ports.
Data = 0: Open
Data = 1: Low level
The data is reset to 0, setting the pins to the open state, after a power on reset.
IOC1
IOC2
6
DO pin control data
DOC0
DOC1
DOC2
Determines the DO pin output.
The open state is selected after a power on reset.
*
1. end-UC: IF counter measurement end check
(1)When end-UC is selected and an IF count is started (by switching CTE from 0 to 1), the DO pin
automatically goes to the open state.
(2)When the IF counter measurement period completes, the DO pin goes to the low level, allowing
applications to test for the completion of the count period.
(3)The DO pin is set to the open state by performing a serial data input or output operation (when the CE
pin is set high).
*
2. The DO pin will go to the open state if the corresponding IO pin is set up to be an output port.
Note: During the data input period (the period that CE is high in IN1 or IN2 mode), the DO pin goes to the
open state regardless of the DO pin control data (DOC0 to DOC2). During the data output period (the
period that CE is high in OUT mode) the DO pin state reflects the internal DO serial data in
synchronization with the CL clock, regardless of the DO pin control data (DOC0 to DOC2).
UL0, UL1
CTE
IOC1
IOC2
7
Unlocked state
detection data
UL0, UL1
Selects the width of the phase error (E) detected for PLL lock state discrimination. The state is taken to
be unlocked if a phase error in excess of the detection width occurs.
*
When the PLL is unlocked, the DO pin goes low and UL in the serial data output is set to 0.
Dead zone width: DZA < DZB < DZC < DZD
DOC0
DOC1
DOC2
8
Phase comparator
control data
DZ0, DZ1
Controls the phase comparator dead zone
DOC2
DOC1
DOC0
DO pin state
0
0
0
Open
0
0
1
Low when the PLL is unlocked
0
1
0
end-UC
*
1
0
1
1
Open
1
0
0
Open
1
0
1
The IO1 pin state
*
2
1
1
0
The IO2 pin state
*
2
1
1
1
Open
UL1
UL0
E detection width
Detection output
0
0
Stopped
Open
0
1
0
E is output directly
1
0
±0.55 μs
E is extended by 1 to 2 ms
1
1
±1.11 μs
E is extended by 1 to 2 ms
DZ1
DZ
Dead zone mode
0
0
DZA
0
1
DZB
1
0
DZC
1
1
DZD
Continued on next page.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LC72121M | PLL Frequency Synthesizers for Electronic Tuning |
| LC72122V | PLL Frequency Synthesizer for Portable Equipment Electronic Tuning |
| LC72130 | AM/FM PLL Frequency Synthesizers(AM/FM鎖相環(huán)頻率合成器) |
| LC72131 | AM/FM PLL Frequency Synthesizers(AM/FM鎖相環(huán)頻率合成器) |
| LC72132 | AM/FM PLL Frequency Synthesizers(AM/FM鎖相環(huán)頻率合成器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC72121_03 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizers for Electronic Tuning |
| LC72121-D-E | 制造商:ON Semiconductor 功能描述:PLL FREQUENCY SYNTHESIZER - Ammo Pack 制造商:ON Semiconductor 功能描述:PLL FREQ SYNTHESIZER 制造商:ON Semiconductor 功能描述:FNFLD / PLL FREQUENCY SYNTHESIZER |
| LC72121M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizers for Electronic Tuning |
| LC72121MA | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:CMOS IC PLL Frequency Synthesizers for Electronic Tuning |
| LC72121MA-AH | 功能描述:時鐘合成器/抖動清除器 RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
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