552AD000226DG

Manufacturer Part Number552AD000226DG
ManufacturerSilicon Laboratories Inc
552AD000226DG datasheets

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Specifications of 552AD000226DG

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Si 552
3. Ordering Information
The Si552 supports a variety of options including frequency, temperature stability, tuning slope, output format, and
V
.
Specific device configurations are programmed into the Si552 at time of shipment. Configurations are
DD
specified using the Part Number Configuration chart shown below. Silicon Labs provides a web browser-based part
number configuration utility to simplify this process. Refer to
and for further ordering instructions. The Si552 VCXO series is supplied in an industry-standard, RoHS-compliant,
lead-free, 6-pad, 5 x 7 mm package. Tape and reel packaging is an ordering option.
552
X
552 Dual VCXO
Product Family
st
1
Option Code
Code
VDD
Output Format
A
3.3
LVPECL
B
3.3
LVDS
DD
C
3.3
CMOS
D
3.3
CML
E
2.5
LVPECL
F
2.5
LVDS
G
2.5
CMOS
H
2.5
CML
J
1.8
CMOS
K
1.8
CML
Notes:
CMOS available to 160 MHz.
Example Part Number: 552AF000108DGR is a 5x7mm Dual VCXO in a 6 pad package. Since the six digit code (000108) is >
000100, f0 is 644.53125 MHz (lower frequency) and f1 is 693.48299 (higher frequency), with a 3.3V supply and LVPECL output.
Temperature stability is specified as ± 50 ppm and the tuning slope is 135 ppm/V. The part is specified for a -40 to +85 C° ambient
temperature range operation and is shipped in tape and reel format.
8
www.silabs.com/VCXOPartNumber
X
XXXXXX
D
6-digit Frequency Designator Code
Two unique frequencies can be specified within the following bands of frequencies: 10 to
945 MHz, 970 to 1134 MHz, and 1213 to 1417 MHz. A six digit code will be assigned for
the specified combination of frequencies. Codes > 000100 refer to dual XOs programmed
with the lower frequency value selected when FS = 0, and the higher value when FS = 1.
Six digit codes < 000100 refer to dual XOs programmed with the higher frequency value
selected when FS = 0, and the lower value when FS = 1.
nd
2
Option Code
Temperature
Tuning Slope
Stability
Kv
Code
± ppm (max)
ppm/V (typ)
A
100
180
B
100
90
C
50
180
D
50
90
E
20
45
F
50
135
G
20
356
H
20
180
J
20
135
K
100
356
M
20
33
Notes:
1. For best jitter and phase noise performance, always choose the smallest Kv that meets
the application’s minimum APR requirements. Unlike SAW-based solutions which
require higher higher Kv values to account for their higher temperature dependence,
the Si55x series provides lower Kv options to minimize noise coupling and jitter in real-
world PLL designs. See AN255 and AN266 for more information.
2. APR is the ability of a VCXO to track a signal over the product lifetime. A VCXO with an
APR of ±25 ppm is able to lock to a clock with a ±25 ppm stability over 15 years over all
operating conditions.
3. Nominal Pull range (±) = 0.5 x V
x tuning slope.
DD
4. Nominal Absolute Pull Range (±APR) = Pull range – stability – lifetime aging
= 0.5 x V
DD
5. Minimum APR values noted above include worst case values for all parameters.
6. Combination not available.
Figure 1. Part Number Convention
Rev. 0.6
to access this tool
G
R
R = Tape & Reel
Blank = Trays
Operating Temp Range (°C)
G
–40 to +85 °C
Device Revision Letter
Minimum APR
(±ppm) for VDD @
3.3 V
2.5 V
1.8 V
100
75
25
30
Note 6
Note 6
150
125
75
80
30
25
25
Note 6
Note 6
100
75
50
375
300
235
185
145
105
130
104
70
295
220
155
12
Note 6
Note 6
x tuning slope – stability – 10 ppm

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