Silicon Laboratories Si5-EVB Series User manual

Rev. 0.1 3/11 Copyright © 2011 by Silicon Laboratories Si5xx-EVB
Si5xx-EVB
SI5XX SINGLE/DUAL FREQUENCY XO/VCXO
EVALUATION BOARD
Description
The Silicon Laboratories Si5xx evaluation board
contains the hardware needed for evaluation of the
Si5xx Single/Dual Frequency XO/VCXO.
Note: The Si5xx-EVB is not populated with an Si5xx XO or
VCXO. These devices must be ordered separately. Go
to www.silabs.com/VCXOPartnumber to configure a
device and/or to order samples.
Features
Evaluation of Silicon Laboratories' Si5xx Single/Dual
Frequency XO/VCXO
Voltage control (VC) input port (Si515, Si516)
Supports frequencies up to 1.4 GHz (using Si53x/
55x)
Dual footprint supports 3.2 x 5 or 5 x 7 mm
Function Block Diagram
Power In
Filter
J12
J4 J5
VDD
Output
Conditioner
J3
J2
VCO input
GND
CLKP
CLKN
NC/FS/VC/OE
NC/FS/OE
1 (1)
2
3 (2)
4 (3)
5
6 (4)
CLKP
CLKN
J1
Note: pin numbers in parentheses represent
pin numbers for the 4-pin device

Si5xx-EVB
2 Rev. 0.1
1. Introduction
This document describes the operation of the Silicon Laboratories Si5xx evaluation kit. The Si5xx-EVB kit refers to
the evaluation board hardware intended for customer evaluation of the Si5xx single/dual frequency XO/VCXO. The
Si5xx-EVB kit contains the following:
Si5xx-EVB Hardware
Si5xx-EVB User Guide (this document)
The Si5xx-EVB evaluation board can be used to evaluate all the single and dual frequency Si5xx XO/VCXOs
offered by Silicon Laboratories:
1.1. Quick Start
1. Install an Si5xx device on the board.
2. Verify the jumper settings are correct.
3. Connect external power cable to the EVB (set voltage according to how the part was ordered).
Table 1. Si5xx XO and VCXO Device Evaluation Board Selector Guide
Part # Type Devices
Supported Packages Supported Output Format, Temp Stability,
Tuning Slope
Supported
Frequency
Range
Si5XX-EVB Fixed Fre-
quency XO/
VCXO
Eval Board
Si510/511
Si512/513
Si515/516
Si530/531
Si532/533
Si550/552
Si590/591
5x7mm,6-pin
3.2 x 5 mm, 6-pin
3.2 x 5 mm, 4-pin
LVPECL
CML
HCSL
LVDS
CMOS
Dual-CMOS
100 kHz to
1417 MHz
Note: Si5xx samples must be ordered separately from the Si5xx-EVB.

Si5xx-EVB
Rev. 0.1 3
2. Top/Bottom Views of Board
Figure 1. Top (Left) and Bottom (Right) Board Views
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 

Si5xx-EVB
4 Rev. 0.1
3. Functional Description
The Si5xx-EVB is the evaluation board assembly for the Si5xx single/dual frequency XO/VCO. This evaluation
board assembly provides access to all signals for operating the device. The Si5xx-EVB schematics, bill of material,
and PCB layouts are included as sections 4, 5, and 6, respectively. Figure 2 provides a block diagram for the
board.
Figure 2. Si5xx-EVB Functional Block Diagram
3.1. Power Supply
The Si5xx-EVB accepts either an external supply of 1.8, 2.5, or 3.3 V at connector J1. (Insure the voltage range of
the DUT is obeyed, and it is also good practice to set a current limit on the power supply).
3.2. Jumpers
There are two jumpers on the Si5xx-EVB as listed in Table 2. The board default is to have no jumpers.
Table 2. Si5xx-EVB Jumpers
Component Si510 Si511 Si512 Si513 Si515 Si516
R6 remove remove remove remove installed installed
R7 remove remove remove remove remove remove
J4 No jumper:
OE = Hi
Jumper:
OE = Lo
No jumper No jumper:
OE = Hi
Jumper:
OE = Lo
No jumper:
FS = Hi
Jumper:
FS = Lo
No jumper:
OE = Hi
Jumper:
OE = Lo
No jumper:
FS = Hi
Jumper:
FS = Lo
J5 No jumper No jumper:
OE = Hi
Jumper:
OE = Lo
No jumper:
FS = Hi
Jumper:
FS = Lo
No jumper:
OE=Hi
Jumper:
OE = Lo
No jumper No jumper
Power In
Filter
J12
J4 J5
VDD
Output
Conditioner
J3
J2
VCO input
GND
CLKP
CLKN
NC/FS/VC/OE
NC/FS/OE
1 (1)
2
3 (2)
4 (3)
5
6 (4)
CLKP
CLKN
J1
Note: pin numbers in parentheses represent
pin numbers for the 4-pin device

Si5xx-EVB
Rev. 0.1 5
3.3. Si5xx-EVB Voltage Control Signal
An external voltage control signal may be applied to the control voltage modulation input at the J12 header (VC).
This voltage supplies the control voltage or voltage modulation input to the DUT. See Section 3.2 on how to
configure the jumpers and VC enable resistors (R6 and R7).
3.4. Output Terminations
The Si5xx-EVB can support four different output formats: CMOS, LVPECL, LVDS, and HCSL. There are output
resistors that are needed to accompany each format. Table 3 shows which resistors are needed for each output:
Table 3. Output Termination Installation Definition
Output
Format R2 R12 R8 R1 R11 R3 R13 C1 C7
CMOS NP NP NP NP NP 82 82 100N 100N
LVPECL 0 0 NP NP NP 130 130 NP NP
LVDS NP NP NP NP NP 82 82 100N 100N
HCSL NP NP NP NP NP 82 82 100N 100N

Si5xx-EVB
6 Rev. 0.1
4. Configuring the Si5xx-EVB
Figure 3. Si5xx-EVB Typical Configuration
Si5xx-EVB
1.8-3.3 V Power Supply
+-
Optional Voltage Source
(for Si515, Si516)
+-
+-
+- Optional Oscilloscope
or other Instrument
Frequency Counter
CLKN
CLKP
VC

Si5xx-EVB
Rev. 0.1 7
5. Schematic
Power Input
Low-Pass Filter
POP one for VC input, neither for non-VCOs
Pull Down for FS or OE
VC for VCO
VDD
VDD VDD
J12J12
1 2 3
R6 0 ohmR6 0 ohm
C7
100N
C7
100N
R8 100 R8 100
R4
4.99K
R4
4.99K
R7 0 ohmR7 0 ohm
U1
SI5306_6_PIN
U1
SI5306_6_PIN
NC/FS/SDA/SCL/VC/SD/OE1
1
NC/FS/SDA/SCL/VC/SD/OE2
2
GND
3
CLK 4 CLK 5
VDD 6
R10
49.9
R10
49.9
R5 4.99K R5 4.99K
R12 0R12 0
J3
CLKOB
J3
CLKOB
1
3
2
C1
100N
C1
100N
R3 82 R3 82
R2 0R2 0
R13 82 R13 82
J4J4
1 2
* *
J1
* *
J1
1 2
C2 100N C2 100N
R11 127 R11 127
C6 100N C6 100N
C5 100N C5 100N
R1 127 R1 127
J5J5
1 2
J2
CLKOB
J2
CLKOB
1
3
2
C4 100N C4 100N
R9 1K R9 1K
Figure 4. Si5xx-EVB Schematic

Si5xx-EVB
8 Rev. 0.1
6. Bill of Materials
Table 4. Si5xx-EVB Bill of Materials
Item Catty Reference Value Mfr Manufacturer PN PCB Footprint
1 6 C1,C2,C4,C
5,C6,C7 100N Venkel C0603X7R160- 104KNE SM_C_0603
2 1 J1 Phoenix_2_scr
ew Phoenix MKDSN 1.5/2-5.08 Phoenix2pinM_p2pitch
3 2 J2,J3 edge mount
sma Johnson 142-0701-801 SMA_EDGE_p062
4 2 J4,J5 1by2_M_Hdr Salines Don't care Thru-hole, .1" pitch
5 1 J12 Jmpr_3pin Tyco 146225-3 3pin_p1pitch
6 2 R1, R11 127 Venkel CR0603-16W-127FT SM_R_0603
7 2 R3, R13 82 Venkel CR0603-16W-82R0FT SM_R_0603
8 4 R2, R6, R7,
R12 0 ohm Venkel CR0603-16W-000T SM_R_0603
9 1 R10 49.9 Venkel CR0603-16W-49R9FT SM_R_0603
10 2 R4,R5 4.99K Venkel CR0603-16W-4991FT SM_R_0603
11 1 R8 100 Venkel CR0603-16W-1000FT SM_R_0603
12 1 R9 1K Venkel CR0603-16W-1001FT SM_R_0603
No Pop
13 0 U1 Si53x SiLABS N/A 6_pin_SM
14 0 C3 10UF Venkel C0805X5R6R3-
106KNE SM_C_0805

Si5xx-EVB
Rev. 0.1 9
7. Layout
Figure 5. Layer 1: Primary Side

Si5xx-EVB
10 Rev. 0.1
Figure 6. Layer 2: GND

Si5xx-EVB
Rev. 0.1 11
Figure 7. Layer 4: PWR

Si5xx-EVB
12 Rev. 0.1
Figure 8. Layer 4: Secondary Side

Si5xx-EVB
Rev. 0.1 13
NOTES:

Si5xx-EVB
14 Rev. 0.1
CONTACT INFORMATION
Silicon Laboratories Inc.
400 West Cesar Chavez
Austin, TX 78701
Tel: 1+[phone]
Fax: 1+[phone]
Toll Free: 1+[phone]
Please visit the Silicon Labs Technical Support web page:
https://www.silabs.com/support/pages/contacttechnicalsupport.aspx
and register to submit a technical support request.
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theuseofinformationincludedherein.Additionally, Silicon Laboratories assumes no responsibility forthefunctioningofundescribed features
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