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參數(shù)資料
| 型號(hào)： | XRK49911IJ-5 |
| 廠商： | EXAR CORP |
| 元件分類： | 時(shí)鐘及定時(shí) |
| 英文描述： | 3.3V HIGH-SPEED (110 MHZ) PROGRAMMABLE SKEW CLOCK BUFFER |
| 中文描述： | 49911 SERIES, PLL BASED CLOCK DRIVER, 8 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQCC32 |
| 封裝： | GREEN, PLASTIC, LCC-32 |
| 文件頁(yè)數(shù)： | 7/12頁(yè) |
| 文件大?。?/td> | 99K |
| 代理商： | XRK49911IJ-5 |
xr
REV. 1.0.1
XRK49911
3.3V HIGH-SPEED (110 MHZ) PROGRAMMABLE SKEW CLOCK BUFFER
7
N
OTES
:
4.
These inputs are normally wired to V
CC
, GND or left unconnected (actual threshold voltages vary as a percentage
of V
CC
). Internal termination resistors hold unconnected inputs at V
CC
/2. If these inputs are switched, the function
and timing of the outputs may glitch and the PLL may require an additional t
LOCK
time before all data sheet limits
are achieved.
XRK49911 should be tested one output at a time, output shorted for less than one second, less than 10% duty
cycle. Room temperature only.
Total output current per output pair can be approximated by the following expression that includes device current
plus load current:
XRK49911: I
CCN
= {(4+0.11F) + [(835-3F)/Z + (.0022FC)]N} x 1.1
Where:
F = frequency in MHz
C = capacitive load in pF
Z = line impedance in ohms
N = number of loaded outputs; 0, 1, or 2
Total power dissipation per output pair can be approximated by the following expression that includes device
power dissipation plus power dissipation due to the load circuit:
PD = {(22 + 0.61F) + [(1550 + 2.7F)/Z) + .0125FC]N} x 1.1
See note 6 for variable definition.
Applies to CLKIN and FB_IN inputs only.
5.
6.
7.
8.
I
OS
Short Circuit Current
[5]
-200
mA
V
CC
= Max,
V
OUT
= GND (25°
only)
I
CCQ
Operating Current Used by Inter-
nal Circuitry
Com’l
95
mA
V
CCN
= V
CCQ
= Max.,
All Inputs Selects Open
Ind
100
I
CCN
Output Buffer Current per Output Pair
[6]
19
mA
V
CCN
= V
CCQ
= Max.,
I
OUT
= 0 mA
Inputs Selects Open, f
MAX
PD
Power Dissipation per Output Pair
[7]
104
mW
V
CCN
= V
CCQ
= Max.,
I
OUT
= 0 mA
Input Selects Open, f
MAX
CAPACITANCE
[8
]
S
YMBOL
D
ESCRIPTION
M
AX
.
U
NIT
C
ONDITION
C
IN
Input Capacitance
10
pF
T
A
= 25°C,
f=1MHz, V
CC
=3.3V
ELECTRICAL CHARACTERISTICS
OVER THE 3.3V
+
10% OPERATING RANGE
S
YMBOL
D
ESCRIPTION
M
IN
M
AX
U
NIT
C
ONDITION
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRK4991A | 制造商:EXAR 制造商全稱:EXAR 功能描述:3.3V HIGH-SPEED (85 MHZ) PROGRAMMABLE SKEW CLOCK BUFFER |
| XRK4991ACJ-5 | 制造商:EXAR 制造商全稱:EXAR 功能描述:3.3V HIGH-SPEED (85 MHZ) PROGRAMMABLE SKEW CLOCK BUFFER |
| XRK4991ACJ-7 | 制造商:EXAR 制造商全稱:EXAR 功能描述:3.3V HIGH-SPEED (85 MHZ) PROGRAMMABLE SKEW CLOCK BUFFER |
| XRK4991AIJ-5 | 制造商:EXAR 制造商全稱:EXAR 功能描述:3.3V HIGH-SPEED (85 MHZ) PROGRAMMABLE SKEW CLOCK BUFFER |
| XRK4991AIJ-7 | 制造商:EXAR 制造商全稱:EXAR 功能描述:3.3V HIGH-SPEED (85 MHZ) PROGRAMMABLE SKEW CLOCK BUFFER |
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