Micrel, Inc.
DSC2033FI2-F0030
Operational Description
The DSC2033FI2-F0030 is a dual output LVDS
oscillator consisting of a MEMS resonator and a
supporting PLL IC. The two LVDS outputs are
generated through independent 8-bit programmable
When OE (pin 1) is floated or connected to VDD,
the DSC2033 is in operational mode. Driving OE
to ground will tri-state both output drivers (hi-
impedance mode).
dividers from the output of the internal PLL. The
two constraints are imposed on the output frequencies:
1) f2 = M x f1/N, where M and N are even integers
between 4 and 254, 2) 1.2GHz < N x f2 < 1.7GHz.
The actual frequencies output by DSC2033FI2-F0030
are controlled by an internal pre-programmed memory
(OTP). This memory stores all coefficients required
by the PLL for up to eight different frequency
combinations. Three control pins (FS0 - FS2) select
the output frequency combination.
Output Clock Frequencies
Frequency select bits are weakly tied high so if left unconnected the default setting will be [111] and the device will output the
associated frequency highlighted in bold.
Freq Select Bits [FS2, FS1, FS0] - Default is [111]
Freq (MHz)
000
001
010
011
NA
NA
100
NA
NA
101
NA
NA
110
NA
NA
111
160
160
CLK1
CLK2
80
60
30
80
60
30
Table 1. Pin-Selectable Output Frequencies
Absolute Maximum Ratings
Item
Min.
-0.3
-0.3
-
Max.
+4.0
Units
V
Condition
Supply Voltage
Input Voltage
Junction Temp
Storage Temp
Soldering Temp
VDD + 0.3
+150
V
°C
°C
°C
-55
-
+150
+260
40sec max.
ESD
HBM
MM
4000
400
-
V
CDM
1500
1000+ years of data retention on internal memory
March 31, 2016
3756
3
Revision 1.0
tcghelp@micrel.comor (408) 955-1690
MICREL [ MICREL SEMICONDUCTOR ]
