Si534
Rev. 1.0 7
3. Ordering Information
The Si534 XO was designed to support a variety of options including frequency, temperature stability, output
format, and VDD. Specific device configurations are programmed into the Si534 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 Si534 is supplied in an industry-standard, RoHS
compliant, 6-pad, 5 x 7 mm package.
Figure 1. Part Number Convention
Example Part Number: 534AB000108BGR is a 5 x 7 mm quad XO in a 8 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 3.3 V supply, LVPECL output, and Output
Enable active high polarity. 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 = Trays
Operating Temp Range (°C)
G –40 to +85 °C
Device Revision Letter
2nd Option Code
Code Temperature Stability (ppm, max, ±)
A 50
B 20
534 Quad XO
Product Family
6-digit Frequency Designator Code
Four 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 quad XOs
programmed with the lowest frequency value selected when
FS[1:0] = 00, and the highest value when FS[1:0] = 11. Six digit
codes < 000100 refer to quad XOs programmed with the highest
frequency value selected when FS[1:0] = 00, and the lowest value
when FS[1:0] = 11.
534 X X XXXXXX B G R
1st Option Code
VDD 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.