參數(shù)資料
型號: IDT82V3011PVG8
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 6/31頁
文件大小: 0K
描述: IC PLL WAN T1/E1/OC3 SGL 56-SSOP
標(biāo)準(zhǔn)包裝: 1,000
類型: 時鐘/頻率發(fā)生器
PLL:
主要目的: 電信
輸入: 時鐘
輸出: CMOS,LVDS,TTL
電路數(shù): 1
比率 - 輸入:輸出: 1:12
差分 - 輸入:輸出: 無/是
頻率 - 最大: 32.768MHz
電源電壓: 3 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 56-BSSOP(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 56-SSOP
包裝: 帶卷 (TR)
其它名稱: 82V3011PVG8
Functional Description
14
May 24, 2006
IDT82V3011
T1/E1/OC3 WAN PLL WITH SINGLE REFERENCE INPUT
FOX F7C-2E3-20.0 MHz
Frequency:
20 MHz
Tolerance:
25 ppm 0
°C to 70°C
Rise & Fall Time:10 ns (0.33 V, 2.97 V, 15 pF)
Duty Cycle:
40% to 60%
For Stratum 3 application, the clock oscillator should meet the
following requirements:
Frequency:
20.0 MHz
Tolerance:
±4.6 ppm over 20 years life time
Drift:
±0.04 ppm per day @ constant temperature
±0.3 ppm over temperature range of 0
°C to 70°C
The output clock should be connected directly (not AC coupled) to
the OSCi input of the IDT82V3011, as shown in Figure - 8.
Figure - 8 Clock Oscillator Circuit
2.8
JTAG
The IDT82V3011 supports IEEE 1149.1 JTAG Scan.
2.9
RESET CIRCUIT
A simple power-up reset circuit is shown as Figure - 9. The logic low
reset pulse is about 50 s.
Resistor Rp is used for protection only and limits current into the RST
pin during power down conditions. The logic low reset pulse width is not
critical but should be greater than 300 ns.
Figure - 9 Power-Up Reset Circuit
+3.3 V
20 MHz OUT
GND
+3.3 V
OSCi
IDT82V3011
0.1
F
3.3 V
R
10 k
Rp
1 k
C
1
F
RST
IDT82V3011
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