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参数资料
| 型号： | LC72121 |
| 元件分类： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 160 MHz, PDIP22 |
| 封装： | DIP-22 |
| 文件页数： | 23/23页 |
| 文件大小： | 377K |
| 代理商： | LC72121 |
No. 5815-9/23
LC72121, 72121M, 72121V
DI Control Data
No.
Control block/data
Function
Related data
1
Programmable
divider data
P0 to P15
DVS, SNS
Specifies the divisor for the programmable divider.
This is a binary value in which P15 is the MSB. The LSB changes depending on DVS and SNS.
(* : don’t care)
* LSB: When P4 is the LSB, P0 to P3 are ignored.
2
Reference divider
data
R0 to R3
XS
Reference frequency selection
* PLL INHIBIT mode
In this mode, the programmable divider and the IF counter block are stopped, the FMIN, AMIN, and IFIN
pins are pulled down to ground, and the charge pump output goes to the high-impedance state.
Crystal oscillator element selection data
XS = 0: 4.5 MHz
XS = 1: 7.2 MHz
Note that 7.2 MHz is selected after a power on reset.
3
IF counter control
data
CTE
GT0, GT1
IFS
IF counter measurement start command data
CTE = 1: Starts the counter
CTE = 0: Resets the counter
Determines the IF counter measurement time.
DVS
SNS
LSB
Set divisor (N)
Actual divisor
1
*
P0
272 to 65535
Twice the set value
0
1
P0
272 to 65535
The set value
0
P4
4 to 4095
The set value
GT1
GT0
Measurement time
Wait time
0
4 ms
3 to 4 ms
0
1
8
3 to 4
1
0
32
7 to 8
1
64
7 to 8
R3
R2
R1
R0
Reference frequency
0
100
kHz
0
1
50
0
1
0
25
0
1
25
0
1
0
12.5
0
1
0
1
6.25
0
1
0
3.125
0
1
3.125
1
0
10
1
0
1
9
1
0
1
0
5
1
0
1
0
3
1
0
1
15
1
0
PLL INHIBIT + Xtal OSC STOP
1
PLL INHIBIT
These pins select the signal input to the programmable divider (FMIN or AMIN) and switch the input
frequency range.
* See the “Structure of the Programmable Divider” section for details.
* See the “Structure of the IF Counter” section for details.
DVS
SNS
Input pin
Frequency range accepted by the input pin
1
*
FMIN
10 to 160 MHz
0
1
AMIN
2 to 40 MHz
0
AMIN
0.5 to 10 MHz
(* : don’t care)
Continued on next page.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LC72121_03 | 制造商:SANYO 制造商全称: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 制造商全称:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizers for Electronic Tuning |
| LC72121MA | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:CMOS IC PLL Frequency Synthesizers for Electronic Tuning |
| LC72121MA-AH | 功能描述:时钟合成器/抖动清除器 RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
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