參數(shù)資料
型號: AD9549ABCPZ-REEL7
廠商: Analog Devices Inc
文件頁數(shù): 6/76頁
文件大?。?/td> 0K
描述: IC CLOCK GEN/SYNCHRONIZR 64LFCSP
產(chǎn)品變化通告: AD9549A Mask Change 22/Oct/2010
標(biāo)準(zhǔn)包裝: 750
類型: 時鐘/頻率發(fā)生器,同步器
PLL:
主要目的: 以太網(wǎng),SONET/SDH,Stratum
輸入: CMOS,LVDS,LVPECL
輸出: CMOS,HSTL
電路數(shù): 1
比率 - 輸入:輸出: 2:2
差分 - 輸入:輸出: 是/是
頻率 - 最大: 750MHz
電源電壓: 1.71 V ~ 3.465 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 64-VFQFN 裸露焊盤,CSP
供應(yīng)商設(shè)備封裝: 64-LFCSP-VQ(9x9)
包裝: 帶卷 (TR)
AD9549
Rev. D | Page 14 of 76
06744-
009
10
30
50
70
90
SYSTEM CLOCK PLL INPUT FREQUENCY (MHz)
2.0
1.5
1.0
0.5
0
12kHz
T
O
20M
Hz
RM
S
JI
T
E
R
(
p
s)
Figure 9. 12 kHz to 20 MHz RMS Jitter vs. System Clock PLL Input Frequency,
SYSCLK = 1 GHz, fREF = 19.44 MHz, fOUT = 155.52 MHz
06744-
010
10
100
1k
10k
100k
1M
10M
100M
FREQUENCY OFFSET (Hz)
–70
–80
–90
–100
–110
–120
–130
–140
–150
PH
A
SE
N
O
ISE
(d
B
c
/H
z)
RMS JITTER (12kHz TO 20MHz): 1.26ps
RMS JITTER (50kHz TO 80MHz): 1.30ps
Figure 10. Additive Phase Noise at HSTL Output Driver, SYSCLK = 1 GHz
(SYSCLK PLL Enabled and Driven by a 25 MHz Fox Crystal Oscillator),
fREF = 19.44 MHz, fOUT = 155.52 MHz, DPLL Loop BW = 1 kHz
06744-
011
10
100
1k
10k
100k
1M
10M
FREQUENCY OFFSET (Hz)
–70
–80
–90
–100
–110
–120
–130
–140
–150
PH
A
SE
N
O
ISE
(d
B
c
/H
z)
RMS JITTER (12kHz TO 20MHz): 4.2ps
Figure 11. Additive Phase Noise at HSTL Output Driver, SYSCLK = 500 MHz
(SYSCLK PLL Disabled), fREF = 10.24 MHz, fOUT = 20.48 MHz,
DPLL Loop BW = 1 kHz
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