Figure 2. QFN20 Pinout
參數(shù)資料
型號(hào): NB3N49152MNG
廠商: ON Semiconductor
文件頁(yè)數(shù): 2/6頁(yè)
文件大?。?/td> 0K
描述: IC CLK GEN VCXO LVPECL 20QFN
標(biāo)準(zhǔn)包裝: 92
系列: PureEdge™
類型: *
PLL: 無(wú)
輸入: 晶體
輸出: LVPECL
電路數(shù): 1
比率 - 輸入:輸出: 1:1
差分 - 輸入:輸出: 無(wú)/是
頻率 - 最大: 491.52MHz
除法器/乘法器: 無(wú)/是
電源電壓: 2.97 V ~ 3.63 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 20-VFQFN 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝: 20-QFN(4x4)
包裝: 管件
NB3Nxxxxx VCXO Series
http://onsemi.com
2
1
2
3
4
5
15
14
13
12
11
67
8
9
10
20
19
18
17
16
Figure 2. QFN20 Pinout (Top View)
nc
VDD
XIN
XOUT
nc
VDD
CLK
nc
CLK
nc
GND
OE
GND
nc
VC
GND
nc
Exposed Pad
Table 1. OUTPUT ENABLE TRISTATE FUNCTION
OE
Output Pins Function
Open
Active
High
Active
Low
High Z
Table 2. PIN DESCRIPTION
Pin
Name
I/O
Description
1
VC
Analog Input
Analog control voltage input pin that adjusts output oscillation frequency. f0 = VC = 1.65 V.
Control voltage has a positive slope with a linearity of ±10%; VC = 1.65 V ± 1 V.
2
OE
LVTTL /
LVCMOS Input
Output Enable Pin. When left floating pin defaults to logic HIGH and output is active.
See OE pin description Table 1.
3
GND
Ground
Negative Supply Voltage
4
GND
Ground
Negative Supply Voltage
5
GND
Ground
Negative Supply Voltage
6
nc
No connect
7
nc
No connect
8
nc
No connect
9
nc
No connect
10
nc
No connect
11
CLK
LVPECL Output
Noninverted Differential Output. Typically Terminated with 50 W Resistor to VDD – 2 V.
12
CLK
LVPECL Output
Inverted Differential Output. Typically Terminated with 50 W Resistor to VDD – 2 V.
13
VDD
Power Supply
3.3 V Positive Supply Voltage
14
VDD
Power Supply
3.3 V Positive Supply Voltage
15
VDD
Power Supply
3.3 V Positive Supply Voltage
16
nc
No connect
17
XOUT
Crystal
Crystal Input. This pin forms an oscillator when connected to an external parallelresonant
crystal.
18
nc
No connect
19
XIN
Crystal
Crystal Input. This pin forms an oscillator when connected to an external parallelresonant
crystal.
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