634-597AF000242DG Silicon Labs, 634-597AF000242DG Datasheet - Page 7

• Manufacturer Part Number: 634-597AF000242DG
• Description: Standard Clock Oscillators VCXO
• Manufacturer: Silicon Labs

Specifications of 634-597AF000242DG

• Product Category: Standard Clock Oscillators
• Rohs: yes

3. Ordering Information
The Si597 supports a variety of options including frequency, temperature stability, tuning slope, output format, and
V
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 Si597 VCXO series is supplied in an industry-standard, RoHS compliant,
lead-free, 8-pad, 5 x 7 mm package. Tape and reel packaging is an ordering option.
DD
A
B
C
D
E
F
G
H
J
K
M
N
P
Q
R
S
T
U
V
W
Note:
CMOS available to 160 MHz.
. Specific device configurations are programmed into the Si597 at time of shipment. Configurations are
V
3.3
3.3
3.3
3.3
2.5
2.5
2.5
2.5
1.8
1.8
3.3
3.3
3.3
3.3
2.5
2.5
2.5
2.5
1.8
1.8
DD
Output Format Output Enable Polarity
LVPECL
LVDS
CMOS
CML
LVPECL
LVDS
CMOS
CML
CMOS
CML
LVPECL
LVDS
CMOS
CML
LVPECL
LVDS
CMOS
CML
CMOS
CML
1
st
Option Code
597 Quad VCXO
Product Family
597
High
High
High
High
High
High
High
High
High
High
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
X
Figure 1. Part Number Syntax
X
Code
Notes:
1. For best jitter and phase noise performance, always choose the smallest Kv that meets
2. APR is the ability of a VCXO to track a signal over the product lifetime. A VCXO with an
3. Nominal Pull range (±) = 0.5 x V
4. Minimum APR values noted above include worst case values for all parameters.
A
B
C
D
E
F
G
H
the application’s minimum APR requirements. Lower Kv options minimize noise
coupling and jitter in real-world PLL designs. See AN266 for more information.
APR of ±100 ppm is able to lock to a clock with a ±100 ppm stability over 15 years over
all operating conditions.
XXXXXX
Temperature
± ppm (max)
Stability
Rev. 1.0
50
20
20
50
20
20
50
20
Four unique frequencies can be specified within the following
frequency range: 10 to 810 MHz. A six digit code will be assigned for
the specified combination of frequencies. Codes > 000100 refer to
VCXOs 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 VCXOs programmed with the highest frequency
value selected when FS[1:0] = 00, and the lowest value when FS[1:0]
= 11.
www.silabs.com/VCXOPartNumber
Tuning Slope
ppm/V (typ)
380
185
185
125
125
Kv
95
45
95
D
DD
6-digit Frequency Designator Code
2
x tuning slope.
nd
Option Code
G
3.3 V
370
160
130
100
65
70
35
15
(±ppm) for VDD @
Minimum APR
Device Revision Letter
R
Operating Temp Range (°C)
2.5 V
275
110
20
N/A
G
80
75
50
45
R = Tape & Reel
Blank = Trays
to access this tool
–40 to +85 °C
1.8 V
200
N/A
N/A
80
50
40
25
10
Si597
7