- 您现在的位置：买卖IC网 > PDF目录30730 > LC7152NM PLL FREQUENCY SYNTHESIZER, 55 MHz, PDSO24 PDF资料下载
参数资料
| 型号： | LC7152NM |
| 元件分类： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 55 MHz, PDSO24 |
| 封装： | MFP-24 |
| 文件页数： | 7/11页 |
| 文件大小： | 287K |
| 代理商： | LC7152NM |
Pin Description
Symbol
Pin No.
Function
Description of function
PIA
14
Side-A local oscillator signal
input
.
Side-A programmable divider. The input frequency ranges are as follows.
FA: Serial data
.
Bits DA0 to DA15 determine the divider ratios
Divider ratio N = 272 to 65535
PIB
16
Side-B local-oscillator signal
input
.
Side-B programmable divider
The input frequency ranges are the same as for PIA.
FB(→ FA): Determined by the serial data
.
Bits DB0 to DB15 determine the divider ratios
Divider ratio N= 272 to 65535
.
Serial data: Bit SB is the standby mode control bit
When SB = 1, standby mode is selected. In standby mode, side-B is
stopped, PIB is pulled down to VSS.
When SB = 0, normal operation is selected.
XIN
XOUT
1
24
Crystal oscillator
.
Crystal oscillator connections (CI
% 50 Ω,CL % 16pF).
Note) When using a crystal other than as indicated above, its compatibility
with the crystal oscillator must be thoroughly studied.
PDA1
PDB1
10
22
Side-A main charge pump
Side-B main charge pump
.
These are PLL charge pump outputs that output the PLL phase error
signals. When the frequency generated by dividing the local oscillator signal
frequency by N is higher than the reference frequency, the charge pump
outputs a high-level signal for the phase error; when lower, the charge pump
outputs a low-level signal for the phase error.
If the two values match, these pins go to high-impedance.
.
fosc/N > fref or leading
→ Positive Pulse
.
fosc/N < fref or lagging
→ Negative Pulse
.
fosc/N = fref and coincidence
→ High-Impedance
(*SB = [1] : PDB1 → High-Impedance)
PDA2
PDB2
9
23
Side-A sub charge pump
Side-B sub charge pump
.
PLL charge pump output; outputs PLL phase error signal only when the
unlock condition is detected.
.
The unlock detection threshold is set by serial data bits UL0 and UL1.
.
When a phase error that is shorter than the detection threshold occurs, this
signal goes to high impedance and the phase error signal for the main
charge pump is output.
.
The output pulse of the phase error signal has the same polarity as the main
charge pump.
LDA
LDB
6
5
Side-A unlock detector output
Side-B unlock detector output
.
Outputs the PLL lock/unlock status.
Locked: Open
Unlocked: Low
.
The unlock detection threshold for lock/unlock discrimination is set by serial
data bits UL0 and UL1.
.
The output phase error extension is set by serial data bits UE0 and UE1.
.
For details, refer to the description of the serial data.
.
SB=1:LDB → Open
AIA
AOA
AIB
OAB
11
12
21
20
Side-A low-pass filter transistor
Side-B low-pass filter transistor
.
MOS N-channel transistor for the PLL filter
.
The AOA and AOB output withstand voltage is 13V.
OUTA
OUTB
13
19
Side-A general purpose
output port
Side-B general purpose
output port
.
These latch the serial data bits OA and OB that are sent from the controller,
and then invert and output the data.
(OUTA can also output XIN divided by two.
.
In the LC7152NM, OUTA and OUTB are open at the power-on reset.
FA = [0]
FA = [1]
VDD
Device
1.5 to 23 MHz
20 to 55 MHz
2.0 to 3.3 V
LC7152, 7152M
LC7152NM, 7152KM
—————
55 to 80 MHz
2.7 to 3.3 V
LC7152KM
For more information on crystal oscillator : Nihon Dempa Kogyo Co., Ltd.
Continued on next page.
LC7152, 7152M, 7152NM, 7152KM
No.3889-5/13
相关PDF资料 |
PDF描述 |
|---|---|
| LC7152 | PLL FREQUENCY SYNTHESIZER, 55 MHz, PDIP24 |
| LC72131KM | PLL FREQUENCY SYNTHESIZER, 40 MHz, PDSO20 |
| LC72133V | PLL FREQUENCY SYNTHESIZER, 40 MHz, PDSO20 |
| LC72133M | PLL FREQUENCY SYNTHESIZER, 40 MHz, PDSO20 |
| LC7219M | PLL FREQUENCY SYNTHESIZER, 160 MHz, PDSO24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LC7152NMA-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 |
| LC7153 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Universal Dual-PLL Frequency Synthesizers |
| LC7153M | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Universal Dual-PLL Frequency Synthesizers |
| LC717A00AJ | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Capacitance-Digital-Converter LSI for Electrostatic Capacitive Touch Sensors |
| LC717A00AJ-AH | 功能描述:电容触摸传感器 TOUCH SENSOR IC RoHS:否 制造商:Microchip Technology 电源电压: 通道数量: 封装 / 箱体: 尺寸: 温度范围: |
发布紧急采购，3分钟左右您将得到回复。