SERIAL PORT SPECIFICATIONS—I2C MODE Ta" />
參數(shù)資料
型號: AD9558BCPZ
廠商: Analog Devices Inc
文件頁數(shù): 10/104頁
文件大?。?/td> 0K
描述: IC CLOCK TRANSLATOR 64LFCSP
產(chǎn)品變化通告: AD9558 Minor Metal Mask Change 17/Apr/2012
標準包裝: 1
類型: 時鐘/頻率轉(zhuǎn)換器
PLL:
主要目的: 以太網(wǎng),SONET/SDH,Stratum
輸入: CMOS,LVDS,LVPECL
輸出: CMOS,HSTL,LVDS
電路數(shù): 1
比率 - 輸入:輸出: 4:6
差分 - 輸入:輸出: 是/是
頻率 - 最大: 1.25GHz
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
供應商設備封裝: 64-LFCSP-VQ(9x9)
包裝: 托盤
Data Sheet
AD9558
Rev. B | Page 13 of 104
SERIAL PORT SPECIFICATIONS—I2C MODE
Table 16.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
SDA, SCL (AS INPUT)
Input Logic 1 Voltage
0.7 ×
DVDD3
V
Input Logic 0 Voltage
0.3 ×
DVDD3
V
Input Current
10
+10
A
For VIN = 10% to 90% DVDD3
Hysteresis of Schmitt Trigger Inputs
0.015 ×
DVDD3
Pulse Width of Spikes That Must Be Suppressed by
the Input Filter, tSP
50
ns
SDA (AS OUTPUT)
Output Logic 0 Voltage
0.4
V
IO = 3 mA
Output Fall Time from VIHmin to VILmax
20 + 0.1 Cb
250
ns
10 pF ≤ Cb ≤ 400 pF
TIMING
SCL Clock Rate
400
kHz
Bus-Free Time Between a Stop and Start
Condition, tBUF
1.3
s
Repeated Start Condition Setup Time, tSU; STA
0.6
s
Repeated Hold Time Start Condition, tHD;STA
0.6
s
After this period, the first clock pulse is
generated
Stop Condition Setup Time, tSU; STO
0.6
s
Low Period of the SCL Clock, tLOW
1.3
s
High Period of the SCL Clock, tHIGH
0.6
s
SCL/SDA Rise Time, tR
20 + 0.1 Cb1
300
ns
SCL/SDA Fall Time, tF
20 + 0.1 Cb1
300
ns
Data Setup Time, tSU; DAT
100
ns
Data Hold Time, tHD; DAT
100
ns
Capacitive Load for Each Bus Line, Cb1
400
pF
1
Cb is the capacitance (pF) of a single bus line.
JITTER GENERATION
Jitter generation (random jitter) uses 49.152 MHz crystal for system clock input.
Table 17.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
JITTER GENERATION
System clock doubler enabled;
high phase margin mode enabled;
Register 0x0405 = 0x20; Register 0x0403 =
0x07; Register 0x0400 = 0x81;
in cases where multiple driver types are
listed, both driver types were tested at
those conditions, and the one with higher
jitter is quoted, although there is usually
not a significant jitter difference between
the driver types
fREF = 19.44 MHz; fOUT = 622.08 MHz; fLOOP = 50 Hz
HSTL Driver
Bandwidth: 5 kHz to 20 MHz
304
fs rms
Bandwidth: 12 kHz to 20 MHz
296
fs rms
Bandwidth: 20 kHz to 80 MHz
300
fs rms
Bandwidth: 50 kHz to 80 MHz
266
fs rms
Bandwidth: 16 MHz to 320 MHz
185
fs rms
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