參數(shù)資料
型號(hào): NB2969ASNR2
廠商: ON Semiconductor
文件頁(yè)數(shù): 2/8頁(yè)
文件大?。?/td> 0K
描述: IC CLOCK SYNTHESIZR 4MA TSOT-6
產(chǎn)品變化通告: Product Discontinuation 20/Aug/2008
標(biāo)準(zhǔn)包裝: 2,500
類(lèi)型: 時(shí)鐘/頻率合成器
PLL:
輸入: CMOS,晶體
輸出: CMOS
電路數(shù): 1
比率 - 輸入:輸出: 1:2
差分 - 輸入:輸出: 無(wú)/無(wú)
頻率 - 最大: 13MHz
除法器/乘法器: 是/無(wú)
電源電壓: 2.375 V ~ 3.6 V
工作溫度: 0°C ~ 70°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: SC-74,SOT-457
供應(yīng)商設(shè)備封裝: 6-TSOP
包裝: 帶卷 (TR)
NB2969A
http://onsemi.com
2
Figure 1. Block Diagram
ModOUT
DIV / 2
Crystal
Oscillator
Frequency
Divider
Feedback
Divider
Phase
Detector
Loop
Filter
XIN/CLKIN
XOUT
REFOUT/2
Modulation
VDD
VCO
Output
Divider
PLL
VSS
Table 1. KEY SPECIFICATIONS
Description
Specification
Supply Voltages
VDD =3.3 V / 2.5 V
Frequency Range
For 2.5 V Supply
For 3.3 V Supply
6.0 MHz < CLKIN < 12 MHz
6.0 MHz < CLKIN < 13 MHz
Cycle--to--Cycle Jitter
200 ps (maximum)
Output Duty Cycle
45/55% (worst case)
Modulation Rate Equation
FIN/256
Frequency Deviation
1% @ 10 MHz
Figure 2. Pin Configuration
VDD
1
2
3
6
5
4
REFOUT/2
XOUT
XIN/CLKIN
ModOUT
NB2969A
VSS
Table 2. PIN DESCRIPTION
Pin #
Pin Name
Type
Description
1
REFOUT/2
O
Buffered and divided by 2 output of the input frequency.
2
XOUT
O
Crystal connection. If using an external reference, this pin must be left unconnected.
3
XIN/CLKIN
I
Crystal connection or external reference frequency input. This pin has dual functions. It can be
connected either to an external crystal or an external reference clock.
4
VDD
P
Power supply for the entire chip.
5
ModOUT
O
Spread spectrum clock output.
6
VSS
P
Ground connection.
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