NB3N511 데이터 시트보기 (PDF) - ON Semiconductor
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NB3N511 Datasheet PDF : 6 Pages
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NB3N511
Table 1. CLOCK MULTIPLIER SELECT TABLE
S1*
S0*
CLKOUT Multiplier
L
L
4X Input
L
M
5.333X Input
L
H
5X Input
M
L
2.5X Input
M
M
2X Input
M
H
3.333X Input
H
L
6X Input
H
M
3X Input
H
H
8X Input
*Pins S1 and S0 default to M when open
L = GND
H = VDD
M = OPEN (unconnected; will default to VDD/2)
X1/ICLK 1
VDD 2
GND 3
S1 4
8 X2
7 OE
6 S0
5 CLKOUT
Figure 2. NB3N511 Package Pinout,
8−Pin (150 mil) SOIC (Top View)
Table 2. PIN DESCRIPTION
Pin #
Name
I/O
1
X1/ICLK
Crystal or
LVCMOS/LVTTL Input
2
VDD
Power supply
3
GND
Power supply
4
S1
Three level Input
5
CLKOUT
LVCMOS/LVTTL
Output
6
S0
Three level Input
7
OE
LVCMOS/LVTTL Input
8
X2
Crystal
Description
Crystal or external reference clock input
Positive supply voltage
0 V. Ground.
Multiplier select pin − connect to VDD, GND or float
Clock output
Multiplier select pin − connect to VDD, GND or float
Output Enable. CLKOUT is high impedance when OE is low. Internal pullup
Crystal input – Leave open when providing an external clock reference
Table 3. COMMON OUTPUT FREQUENCY
EXAMPLES
Output Frequency
(MHz)
Input Frequency
(MHz)
S1, S0
20
10
M, M
24
12
M, M
30
10
H, M
32
16
M, M
33.33
16.66
M, M
37.5
15
M, L
40
10
L, L
48
12
L, L
50
20
M, L
60
10
H, L
64
16
L, L
Table 4. COMMON OUTPUT FREQUENCY
EXAMPLES
Output Frequency
(MHz)
Input Frequency
(MHz)
S1, S0
66.66
20
M, H
72
12
H, L
75
25
H, M
80
10
H, H
83.33
25
M, H
90
15
H, L
100
20
L, H
120
15
H, H
125
25
L, H
133.3
25
L, M
150
25
H, L
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