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参数资料
| 型号： | LC72146M |
| 厂商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分类： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 40 MHz, PDSO24 |
| 封装： | MFP-24 |
| 文件页数： | 13/22页 |
| 文件大小： | 157K |
| 代理商： | LC72146M |
Application System Example
Note on Clock Time Base Usage
A resistor of at least 100 k
must be used as the clock time base output pin (O-7) pull-up resistor. Also, the use of a
Schmitt circuit is recommended in the controller (microprocessor) input circuit to prevent chattering. Forming a loop
filter with the built-in low-pass filter transistor will also serve to prevent degradation of the VCO C/N characteristics.
Since the grounding points for the clock time base output pin and the low-pass filter transistor are a common point
within the IC, current fluctuations in the clock time base output pin must be kept to a minimum to limit influencing the
low-pass filter.
No. 4922-20/22
LC72146, 72146M, 72146V
XOUT
CE
DI
CL
DO
O–7
O–6
I/O–5
I/O–4
I/O–3
I/O–2
I/O–1
CE
DI
CL
DO
(TB)
XIN
VSS
AOUT
AIN
PD0
PD1
VSS
FMIN
AMIN
VDD
HCTR/I–6
HCTR/I–7
SO
end-UC
Unlock
ST/MON
SD
SI
FMVCC
AMVCC
IF
ST/MON
SD
STRQ
IF
ST/MON
SD
STRQ
FM
VCC
AM
VCC
FMVCO
AMVCO
– com
L
C
7
2
1
4
6
,
7
2
1
4
6
M
,
7
2
1
4
6
V
Time base output
Schmitt input
Microprocessor
Loop filter
VDO
VCC
Vt
LC72146
Rt
≥ 100k
S
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相关代理商/技术参数 |
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|---|---|
| LC72146MA-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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| LC72146V | 制造商:未知厂家 制造商全称:未知厂家 功能描述: |
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