tSYNCIN Figure 3 20 — ns FSYNC Frequency f" />
參數(shù)資料
型號(hào): SI5364-H-BL
廠商: Silicon Laboratories Inc
文件頁(yè)數(shù): 38/38頁(yè)
文件大?。?/td> 0K
描述: IC CLK MULT SONET/SDH 99-PBGA
標(biāo)準(zhǔn)包裝: 168
系列: DSPLL®
類型: 時(shí)鐘發(fā)生器,扇出緩沖器(分配)
PLL:
輸入: 時(shí)鐘
輸出: CML
電路數(shù): 1
比率 - 輸入:輸出: 3:4
差分 - 輸入:輸出: 是/是
頻率 - 最大: 675MHz
除法器/乘法器: 無/是
電源電壓: 3.135 V ~ 3.465 V
工作溫度: -20°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 99-LBGA
供應(yīng)商設(shè)備封裝: 99-BGA(11x11)
包裝: 托盤
Si5364
Rev. 2.5
9
SYNCIN Pulse Width
tSYNCIN
20
ns
FSYNC Frequency
fFSYNC
fO_19/
2430
—kHz
FSYNC Pulse Width
tFSYNC_PW
16
/fO_19
—s
SYNCIN to FSYNC
tSYNCIN_DL
Y
38
45
52
ns
Phase Skew Between Outputs
tskew
400
ps
RSTN/CAL Pulse Width
tRSTN
20
ns
INCDELAY, DECDELAY Pulse
Width
tINCDEC
1
μs
INCDELAY, DECDELAY Setup Time
tSETUP
1
μs
INCDELAY, DECDELAY Hold Time
tHOLD
1
μs
Transitionless Period Required on
CLKIN for Detecting an LOS Condi-
tion
tLOS
24/
fO_622
—32/
fO_622
s
Recovery Time for Clearing an LOS
or FOS Condition
VALTIME = 0
VALTIME = 1
tVAL
Measured from when a
valid reference clock is
applied until the applica-
ble LOS or FOS flag
clears
0.09
12.0
0.22
14.1
s
Table 4. AC Characteristics (PLL Performance Characteristics)
(VDD33 = 3.3 V ± 5%, TA = –20 to 85 °C)
Parameter
Symbol
Test Condition
Min
Typ
Max Unit
Wander/Jitter at 800 Hz Bandwidth
(BWSEL[1:0] = 10)
Jitter Tolerance (See Figure 8)
JTOL(PP)
f=8 Hz
1000
—ns
f=80 Hz
100
—ns
f = 800 Hz
10
—ns
CLKOUT RMS Jitter Generation
FEC[1:0] = 00 (1/1 Scaling)
JGEN(RMS)
12 kHz to 20 MHz
0.87
1.2
ps
50 kHz to 80 MHz
0.26
0.35
ps
Notes:
1.
Higher PLL bandwidth settings provide smaller clock output wander with temperature gradient.
2.
For reliable device operation, temperature gradients should be limited to 10 °C/min.
3.
Telcordia GR-1244-CORE requirements specify maximum phase transient slope during clock rearrangement in terms
of nanoseconds per millisecond. The equivalent ps/
μs unit is used here since the maximum phase transient magnitude
for the Si5364 (tPT_MTIE) never reaches one nanosecond.
Table 3. AC Characteristics (Continued)
(VDD33 =3.3 V ±5%, TA = –20 to 85 °C)
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
*Note:
The Si5364 provides a 1, 8, or 32x clock frequency multiplication function with an option for additional frequency
scaling by a factor of 255/238 or 238/255 for FEC rate compatibility.
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