參數(shù)資料
型號(hào): LC72146V
元件分類: PLL合成/DDS/VCOs
英文描述: PLL FREQUENCY SYNTHESIZER, 40 MHz, PDSO24
封裝: SSOP-24
文件頁(yè)數(shù): 19/22頁(yè)
文件大?。?/td> 157K
代理商: LC72146V
Pin Functions
No. 4922-6/22
LC72146, 72146M, 72146V
Number
Symbol
Type
Function
Equivalent circuit
24
1
17
16
2
4
18
23
XIN
XOUT
Xtal OSC
FMIN
Local oscillator
signal input
AMIN
Local oscillator
signal input
CE
Chip enable
CL
Clock
DI
Input data
DO
Output data
VDD
Power supply
VDD
Ground
Connection for crystal oscillator element (7.2 or 4.5 MHz)
Serial data input: FMIN is selected when DVS is set to 1.
Input frequency range: 10 to 160 MHz
The signal is transmitted directly to the swallow counter
Divisor value range: 272 to 65535
Serial data input: AMIN is selected when DVS is set to 0.
Serial data input: when SNS is set to 1.
Input frequency range: 2 to 40 MHz
The signal is transmitted directly to the swallow counter.
Divisor value range: 272 to 65535
Serial data input: when SNS is set to 0.
Input frequency range: 0.5 to 10 MHz
The signal is transmitted directly to the 12-bit
programmable divider.
Divisor value range: 4 to 4095
12
11
10
I/O-1
I/O-2
I/O-3
General-purpose
I/O port
General-purpose I/O ports
Output mode circuit type: open drain
Function after a power on reset: input port
Can be set up to function as output ports by bits I/O-1 to
I/O-3 in the serial data sent from the controller.
Inputs the clock used for data synchronization when
inputting serial data to the LC72146 DI pin or outputting
serial data from the DO pin.
Input pin for serial data transmitted to the LC72146 from
a controller.
Output pin for serial data transmitted from the LC72146 to
a controller.
The LC72146 power supply connection. A voltage
between 4.5 and 5.5 volts must be supplied when the
PLL circuit is used.
The power on reset circuit operates when power is first
applied.
Continued on next page.
The LC72146 ground connection.
3
15
5
S
This pin must be set high to input serial data to the
LC72146 DI pin or to output serial data from the DO pin.
相關(guān)PDF資料
PDF描述
LC72146M PLL FREQUENCY SYNTHESIZER, 40 MHz, PDSO24
LC72147V PLL FREQUENCY SYNTHESIZER, 180 MHz, PDSO24
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