Si590/591
10 Rev. 1.0
6. Si590/Si591 Top Marking
Figure 4 illustrates the mark specification for the Si590/Si591. Table 13 lists the line information.
Figure 4. Top Mark Specification
Table 13. Si59x Top Mark Description
Line Position Description
1 1–10 “SiLabs”+ Part Family Number, 59x (First 3 characters in part number where x = 0
indicates a 590 device and x = 1 indicates a 591 device)
2 1–10 Si590, Si591: Option1 + Option2 + Freq(7) + Temp
Si590/Si591 w/ 8-digit resolution: Option1 + Option2 + ConfigNum(6) + Temp
3
Trace Code
Position 1
Pin 1 orientation mark (dot)
Position 2
Product Revision (D)
Position 3–6
Tiny Trace Code (4 alphanumeric characters per assembly release instructions)
Position 7
Year (least significant year digit), to be assigned by assembly site (ex: 2009 = 9)
Position 8–9
Calendar Work Week number (1–53), to be assigned by assembly site
Position 10
“+” to indicate Pb-Free and RoHS-compliant
Si590/591
Rev. 1.0 11
DOCUMENT CHANGE LIST
Revision 0.2 to Revision 0.25
Total Stability Maximum changed to ±30 in Table 2
on page 2.
Total Stability Maximum changed to ±30 in Figure 1
on page 7.
Revision 0.25 to Revision 0.3
Updated Table 4 on page 3 by adding the
155.51 MHz “Phase Jitter (RMS)
(LVPECL/LVDS/CML)” row.
Updated and clarified Table 6 on page 4 to correct
typos and include the “Moisture Sensitivity Level”
and “Contact Pads” rows.
Corrected BSC value in rows D and E in Table 11 on
page 8.
Revision 0.3 to Revision 0.4
Added ±7 ppm temperature stability ordering option
in Table 4 on page 3 and Figure 1 on page 7.
Revision 0.4 to Revision 1.0
Updated 2.5 V/3.3 V and 1.8 V CML output level
specifications in Table 3 on page 3.
Updated Si590/591 devices to support frequencies
up to 810 MHz for LVPECL, LVDS, and CML
outputs.
Separated 1.8 V, 2.5 V/3.3 V supply voltage.
specifications for CML output in Table 3 on page 3.
Updated Note 1 of Table 4 on page 3 to refer to
AN256.
Updated Table 4 on page 3.
Updated phase jitter specification.
Updated Table 6 on page 4 to include the "Moisture
Sensitivity Level" and "Contact Pads" rows.
Updated Figure 3 and Table 13 on page 10 to reflect
specific marking information.
Added Table 7, “Thermal Characteristics,” on
page 4.
Rearranged sections to conform to new quality
standard.
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591QC-ADG

Mfr. #:
Manufacturer:
Silicon Labs
Description:
XTAL OSC PROG XO CML 3.3V 20PPM
Lifecycle:
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