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參數資料
| 型號： | LC72146M |
| 廠商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分類： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 40 MHz, PDSO24 |
| 封裝： | MFP-24 |
| 文件頁數： | 20/22頁 |
| 文件大?。?/td> | 157K |
| 代理商： | LC72146M |
Continued from preceding page.
Number
Symbol
Type
Function
Equivalent circuit
No. 4922-7/22
LC72146, 72146M, 72146V
7
O-6
Output port
The LC72146 latches the OUT6 bit in the serial data and
outputs it from pin O-6.
6
O-7
Output port
The LC72146 latches the OUT7 bit in the serial data and
outputs it from pin O-7.
Outputs a time base signal (8 Hz) when TBC is set to 1.
Function after a power on reset: open circuit
9
8
I/O-4
I/O-5
General-purpose
I/O port
General-purpose I/O ports
Output mode circuit type: complementary
Function after a power on reset: input port
Can be set up to function as output ports by bits I/O-4
and I/O-5 in the serial data sent from the controller.
20
19
PD0
PD1
Charge pump
output
PLL charge pump output pin
If the frequency generated by dividing the local oscillator
frequency by N is higher than the reference frequency, a
high level will be output from PD0, and if it is lower, a low
level will be output. PD0 goes to the high-impedance
state when the frequencies match.
PD1 operates identically.
21
22
AIN
AOUT
Connections for the
low-pass filter
transistor
Connections to the n-channel MOS transistor used for
the PLL active low-pass filter.
A high-speed locking circuit can be formed by using
these pins with the built-in sub charge pump.
See the item on the structure of the charge pump for
details.
Continued on next page.
14
HCTR/I-6
General-purpose
counter
HCTR is selected when CTS1 is set to 1.
Input frequency range: 0.4 to 25 MHz
The signal is passed through a divide-by-two circuit and
then input to a general-purpose counter. This input also
supports an integrating count function.
The result is output from the DO output pin starting with
the MSB of the general-purpose counter.
See the item on the structure of the general-purpose
counter for details.
When the H/I-6 bit in the serial data is set to 0:
This pin functions as an input port, and the value input is
output from the DO pin.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 |
| LC72148V | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Electronic Tuning PLL Frequency Synthesizer for Car Stereo Systems |
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