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參數(shù)資料
| 型號： | LC72146 |
| 元件分類： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 40 MHz, PDIP24 |
| 封裝： | SDIP-24 |
| 文件頁數(shù)： | 13/22頁 |
| 文件大?。?/td> | 157K |
| 代理商： | LC72146 |
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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LC72146V | PLL FREQUENCY SYNTHESIZER, 40 MHz, PDSO24 |
| LC72146M | PLL FREQUENCY SYNTHESIZER, 40 MHz, PDSO24 |
| LC72147V | PLL FREQUENCY SYNTHESIZER, 180 MHz, PDSO24 |
| LC72148V | PLL FREQUENCY SYNTHESIZER, 40 MHz, PDSO24 |
| LC72191M | PLL FREQUENCY SYNTHESIZER, 40 MHz, PDSO24 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC72146M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizer for Electronic Tuning |
| LC72146MA-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 |
| LC72146MHSQR-U-TRM-E | 制造商:Sony Semiconductor Solutions Division 功能描述: |
| LC72146V | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LC72147V | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizer for Electronic Tuning in Car Audio Systems |
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