Si533
Rev. 1.4 7
3. Ordering Information
The Si533 XO supports a variety of options including frequency, temperature stability, output format, and V
DD
.
Specific device configurations are programmed into the Si533 at time of shipment. Configurations can be specified
using the Part Number Configuration chart below. Silicon Laboratories provides a web browser-based part number
configuration utility to simplify this process. Refer to www.silabs.com/VCXOPartNumber to access this tool and for
further ordering instructions. The Si533 is supplied in an industry-standard, RoHS compliant, 6-pad, 5 x 7 mm
package. The Si533 supports output enable (OE) on pin 1.
Figure 1. Part Number Convention
Example Part Number: 533AB000108DGR is a 5x7mm Dual XO 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 ± 20 ppm. The part is specified for a -40 to +85 C° ambient temperature range operation and is shipped in tape
and reel format.
R = Tape & Reel
Blank = Coil Tape
Operating Temp Range (°C)
G –40 to +85 °C
Device Revision Letter
533 Dual XO
Product Family
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.
533
X X
XXXXXX
D G R
1
st
Option Code
V
DD
Output Format Output Enable Polarity
A 3.3 LVPECL High
B 3.3 LVDS High
C 3.3 CMOS High
D3.3CML High
E 2.5 LVPECL High
F 2.5 LVDS High
G 2.5 CMOS High
H2.5CML High
J 1.8 CMOS High
K1.8CML High
M 3.3 LVPECL Low
N 3.3 LVDS Low
P 3.3 CMOS Low
Q 3.3 CML Low
R 2.5 LVPECL Low
S 2.5 LVDS Low
T 2.5 CMOS Low
U 2.5 CML Low
V 1.8 CMOS Low
W 1.8 CML Low
Note:
CMOS available to 160 MHz.
2
nd
Option Code
Code Temperature Stability (ppm, max, ±) Total Stablility (ppm, max, ±)
A 50 61 .5
B 20 31 .5
C 7 20
