Temperature Gradient 1,2 C
參數(shù)資料
型號: SI5321-H-GL
廠商: Silicon Laboratories Inc
文件頁數(shù): 6/34頁
文件大小: 0K
描述: IC CLOCK MULT SONET/SDH 63LFBGA
標(biāo)準(zhǔn)包裝: 260
系列: DSPLL®
類型: 時鐘乘法器
PLL:
輸入: LVTTL
輸出: CML
電路數(shù): 1
比率 - 輸入:輸出: 1:1
差分 - 輸入:輸出: 是/是
頻率 - 最大: 2.8GHz
除法器/乘法器: 是/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: 63-LBGA
供應(yīng)商設(shè)備封裝: 63-PBGA(9x9)
包裝: 托盤
Si5321
14
Rev. 2.5
Clock Output Wander with
Temperature Gradient 1,2
CCO_TG
Stable Input Clock;
Temperature
Gradient <10
°C/min;
800 Hz Loop BW
45
ps/
°C/
min
Initial Frequency Accuracy in Digital Hold
Mode (first 100 ms with voltage and
temperature held constant)
CDH_FA
Stable Input Clock
Selected until entering
Digital Hold
5.5
ppm
Clock Output Frequency Accuracy Over
Temperature in Digital Hold Mode
CDH_T
Constant Supply Voltage
17.2
30
ppm
/
°C
Clock Output Frequency Accuracy Over
Supply Voltage in Digital Hold Mode
CDH_V33
Constant Temperature
600 ppm
/V
Clock Output Phase Step3(See Figure 8)
tPT_MTIE
When hitlessly recovering
from Digital Hold mode
–200
0
200
ps
Clock Output Phase Step Slope3
BWSEL[1:0] = 11, BWBOOST = 0
BWSEL[1:0] = 00, BWBOOST = 0
BWSEL[1:0] = 01, BWBOOST = 0
BWSEL[1:0] = 10, BWBOOST = 0
mPT
When hitlessly recovering
from Digital Hold mode
6400 Hz, No Scaling
3200 Hz, No Scaling
1600 Hz, No Scaling
800 Hz, No Scaling
10
5
2.5
1.25
ps/
s
Table 4. AC Characteristics (PLL Performance Characteristics) (Continued)
(VDD33 =3.3 V ±5%, TA =–20 to 85 °C)
Parameter
Symbol
Test Condition
Min
Typ
Max Unit
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 Si5321 (tPT_MTIE) never reaches one nanosecond.
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