参数资料
型号: 552AD000226BG
厂商: SILICON LABORATORIES
元件分类: VCXO, clock
英文描述: VCXO, CLOCK, 624.694 MHz, LVPECL OUTPUT
封装: ROHS COMPLIANT, SMD, 6 PIN
文件页数: 12/80页
文件大小: 3734K
代理商: 552AD000226BG
Si552
2
Rev. 0.5
1. Electrical Specifications
Table 1. Recommended Operating Conditions
Parameter
Symbol
Test Condition
Min
Typ
Max
Units
Supply Voltage1
VDD
3.3 V option
2.97
3.3
3.63
V
2.5 V option
2.25
2.5
2.75
1.8 V option
1.71
1.8
1.89
Supply Current
IDD
Output enabled
LVPECL
CML
LVDS
CMOS
120
108
99
90
130
117
108
98
mA
TriState mode
60
70
Frequency Select (FS)2
VIH
0.75 x VDD
——
V
VIL
——
0.5
Operating Temperature Range3
TA
–40
85
C
Notes:
1. Selectable parameter specified by part number. See Section 3. "Ordering Information" on page 7 for further details.
2. FS pin includes a 17 k
pullup resistor to VDD.
3. If the device is powered up below –20 C and the ambient temperature rises by approximately 105 C during normal
operation, the device will perform a one-time recalibration. The output is squelched for approximately 2–3 ms during
this recalibration.
Table 2. VC Control Voltage Input
Parameter
Symbol
Test Condition
Min
Typ
Max
Units
Control Voltage Tuning Slope1,2,3
KV
10 to 90% of VDD
—45
90
135
180
ppm/V
Control Voltage Linearity4
LVC
BSL
–5
±1
+5
%
Incremental
–10
±5
+10
Modulation Bandwidth
BW
9.3
10.0
10.7
kHz
VC Input Impedance
ZVC
500
k
Nominal Control Voltage
VCNOM
@ fO
—3/8 x VDD
—V
Control Voltage Tuning Range
VC
0VDD
V
Notes:
1. Positive slope; selectable option by part number. See Section 3. "Ordering Information" on page 7.
2. For best jitter and phase noise performance, always choose the smallest KV that meets the application’s minimum APR
requirements. See “AN266: VCXO Tuning Slope (KV), Stability, and Absolute Pull Range (APR)” for more information.
3. KV variation is ±28% of typical values.
4. BSL determined from deviation from best straight line fit with VC ranging from 10 to 90% of VDD. Incremental slope
determined with VC ranging from 10 to 90% of VDD.
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