Silicon Laboratories Si57-EVB Series User manual

Rev. 0.2 5/10 Copyright © 2010 by Silicon Laboratories Si57x-EVB
Si57x-EVB
Si57X/598/599 ANY FREQUENCY I2C PROGRAMMABLE
XO/VCXO EVALUATION BOARD
Description
This document describes the operation of the Silicon
Laboratories Si57x/598/599 evaluation kit. The Si57x-
EVB kit refers to the evaluation board hardware and
software intended for customer evaluation of the Si57x/
598/599 any frequency I2C programmable XO/VCXO.
The Si57x-EVB kit contains the following:
Kit Contents
Hardware
Motherboard (MB)—silkscreen labeled as "Si5xx
Programmable Oscillator"
Daughterboard (DB)—silkscreen labeled as "Si5xx CEB
DB"
Software
Programmable Oscillator Software
Register Programmer
EVB Driver (USBXpress)
The Si57x motherboard is normally operated together
with a Si57x daughterboard populated with an Si570/
571/598/599. This combination is referred to as the
Si57x-EVB assembly that is also used to evaluate the
Si598/599 any frequency I2C programmable XO/
VCXOs. Software is supplied for evaluation of the
Si57x/598/599 device. All Si570 and Si598 XOs are pin
and register compatible. The Si571 and Si599 VCXOs
are pin and register compatible. The Si57x-EVB
supports all configurations of these devices. The
software components run on a USB-equipped PC and
are described in detail in "4. Software Installation" on
page 12.
Note: Si57x/598/599 samples must be ordered separately
from the Si57x-EVB.
Features
Evaluation of Silicon Laboratories' Si57x/598/599
any frequency I2C programmable XO/VCXO
Windows-compatible software control and device
programming
Voltage regulator supports at +1.8, +2.5, or +3.3 V
I2C communication options are jumper configurable
Voltage control (VC) input port (Si571/599)
Quick Start
1. Install an assembled Si57x Daughterboard on
to the Si57x Motherboard.
2. Verify Si57x Motherboard jumper settings are
correct. (The default installation assumes a
3.3V OE active high DUT. Otherwise refer to
Table 3.)
3. Connect the USB cable from the EVB to the
host PC.
4. Install the EVB Driver on the host PC.
5. Install the Programmable Oscillator Software
from the CD or zip file.
6. Launch the Programmable Oscillator Software
by clicking StartProgramsSilicon
LaboratoriesProgrammable Oscillator
Software and selecting one of the applications.
Note: The above instructions assume an assembled daugh-
terboard is available. If it is not available, install the
Si57x/598/599 DUT and place proper output compo-
nents on the daughterboard as described in "1.9. Si57x
Daughterboard" on page 9.

Si57x-EVB
2 Rev. 0.2
Figure 1. Si57x-EVB Functional Block Diagram
CLKN
CLKP
SCLOEVDD SDA
Jumper
Selection
Level Translator and Jumper
Selection
(Jumpers installed by default)
CLK–
CLK+VC(Si571/599 only)
Si57x/58/599
C8051F320
MCU
DUT
VREG
OE SDA
USB
I/F
+5 V Input
RESET
VC_MOD
1.8/2.5/3.3 V
Si57x Daughter Board
SCL
GND

Si57x-EVB
Rev. 0.2 3
1. Functional Description
The Si57x-EVB is the evaluation board assembly for the Si57x/598/599 any frequency I2C programmable XO/
VCO. This evaluation board assembly provides access to all signals for programming and operating the device.
The Si57x-EVB assembly motherboard and daughterboard schematics, bills of material, and PCB layouts are
appended as sections 5, 6 and 7, respectively. Reference designators below refer to the Si57x-EVB motherboard
unless otherwise noted. The Si57x-EVB is oriented with the daughterboard at the bottom in the directions below.
1.1. Motherboard-Daughterboard Connection
The Si57x-EVB motherboard connects to the Si57x daughterboard at connectors J13-J14. Each of these is a 2x20
pin, impedance controlled connector. The connectors are keyed so there is only one proper way to install the
board. Orient the boards on installation so that the silkscreen triangle on the daughterboard matches the silkscreen
on the motherboard.
1.2. Power Supply
The Si57x-EVB is pre-configured to accept 5 V from the USB connector at J15. To change the board's 5 V power
supply from the USB connection to the terminal block at J18, make these changes:
Remove R7.
Populate R8.
Note: If both R7 and R8 are installed, do not simultaneously connect to both the USB connector at J15 and to a separate 5 V
supply at J18. Otherwise, power supply contention may occur.
Typical supply current draw for the Si57x-EVB assembly (motherboard + daughterboard) is approximately 230 mA.
See the device data sheet for device power consumption specifications.
The evaluation daughter board are designed to operate at any of the following nominal voltages: 1.8, 2.5, or 3.3 V.
The Si57x-EVB has an on-board voltage regulator which supplies any of these voltages. The Si57x-EVB voltage
regulator is controlled via jumpers. By default, a jumper is installed, selecting 3.3 V for the Si57x/598/599.
Alternatively, VREG may be set to 1.8 or 2.5 V per Table 1.
Table 1. VREG Jumpers
Voltage
Selection
J6 Jumper Installation
(Assuming S/W Control Unavailable)
3.3 Connect pin 1 “3.3 V” to center pin 2
2.5 Connect pin 3 “2.5 V” to center pin 2
1.8 No jumper

Si57x-EVB
4 Rev. 0.2
1.3. Reset Circuit
The Si57x-EVB MCU may be reset by pressing momentary pushbutton SW1. It may also be held in reset by
installing a jumper at J7. MCU outputs are open drain and are tri-stated during reset. They remain tri-stated unless
otherwise directed under program control.
There is no hardware reset for the Si57x/598/599 itself. The Si57x/598/599 is reset only on power-up or through
software. Pressing the Si57x-EVB motherboard pushbutton SW1 in an attempt to reset the Si57x/598/599 may
result in unexpected behavior.
1.4. USB
A 4-pin USB receptacle is provided at location J15. The Si57x-EVB, via the MAC’s USB Function Controller, is
compatible with USB Specification 2.0. When the USB link is in use the MCU drives LED D7.
1.5. MCU
The MCU, Silicon Laboratories P/N C8051F320, provides the following functions:
Supports I2C communication to the DUT on behalf of the host PC per the Si57x-EVB software
Drives a number of status indicator LEDs (see Table 2)
Supplies 3.3 V to peripheral ICs on the motherboard but not to the DUT
The MCU comes pre-loaded with firmware. While there is a provision for in-circuit programming at connector J12
located on the back, this should not be necessary. The host PC operates the Si57x/598/599 software and
communicates to the Si57x/598/599 through the MCU via USB connector J15. When the USB link is in use, LED
D7 should be illuminated.
As mentioned earlier, the MCU may be reset by pressing momentary pushbutton (SW1) or held in reset by
installing a jumper at J7.
1.5.1. Status Signals
There are seven LEDs on the Si57x-EVB that report visual status as listed in Table 2 and as highlighted in Figure 2.
Upon power up, D1–D2 and only one of D3–D5 should be illuminated. D6 and D7 are only illuminated when in use.
Table 2. Si57x-EVB LEDs
Reference
Designation
Color Signal or Status Indicated Comments
D1 Red 5 V present Connected to filtered 5 V
D2 Red MCU 3.3 V present Connected to MCU 3.3 V output
D3 Red VREG 3.3 V selected
D4 Red VREG 2.5 V selected
D5 Red VREG 1.8 V selected
D6 Green OE active
D7 Green USB active Under MCU control

Si57x-EVB
Rev. 0.2 5
Figure 2. Si57x-EVB Motherboard LED Locations

Si57x-EVB
6 Rev. 0.2
1.5.2. Jumpers
There are eight jumper locations on the Si57x-EVB as listed in Table 3. (The reference designations J4-J5 and
J16-17 are assigned to other connector types.) The default or pre-loaded jumpers are shown in Figure 3.
Table 3. Si57x-EVB Jumpers
Reference
Designation
Configuration Signals Default (Pre-loaded)
Jumper Installation
J1 1X2 Bypasses U3 level translator.
Connects signal MCU_SDA to signal
57x_SDA.
Installed
Supports DUT_VDD = 2.5 or
3.3 V nominal.
J2 1X2 Bypasses U3 level translator.
Connects signal MCU_SCL to signal
57x_SCL.
Installed
Supports DUT_VDD = 2.5 or
3.3 V nominal.
J3 1X2 Disables OE active low signal. See "1.7.
Si57x/598/599 Digital Control Signals" on
page 8.
Not installed
J6 1X3 Selects voltage regulator output supplying
DUT_VDD. See "1.2. Power Supply" on
page 3 and Table 1 on page 3.
Installed in 3.3 V position.
Ready for MCU control.
(Default voltage selection is
1.8 V if no jumper is installed.)
J7 1X2 Reset Not installed
J8 1X2 57x SDA test pins only. Not installed
J9 1X2 Disables OE active high signal. See “1.7.
Si57x/598/599 Digital Control Signals” .
Not installed
J10 1X2 57x SCL test pins only. Not installed
J11 2X3 Disables U3 level translator. Installed
Supports DUT_VDD = 2.5 or
3.3 V nominal.

Si57x-EVB
Rev. 0.2 7
Level translator
jumpers (default
installed)
Figure 3. Si57x-EVB Motherboard OE Component Locations

Si57x-EVB
8 Rev. 0.2
1.6. Si57x/598/599 I2C Communication Configuration
The Si57x/598/599 supports I2C serial communication through the SDA and SCL pins. All Si570 and Si598 XOs
are pin and register compatible, and all Si571 and Si599 VCXOs are pin and register compatible. The device can
be operated as an I2C slave only. The MCU supports I2C communication to the DUT. The Si57x-EVB must be
configured by jumpers as described below to select the intended I2C communications path depending on the
DUT's nominal supply voltage.
For I2C communication with the Si57x/598/599 DUT = 2.5 or 3.3 V nominal, there must be jumpers installed at J1,
J2, and J11 pin 2. This defeats and bypasses the installed bidirectional voltage level translator at U3.
(For I2C communication with the Si57x/598/599 DUT at 1.8 V nominal supply, please consult the factory.)
1.7. Si57x/598/599 Digital Control Signals
There is one normally static digital input control signal that routes to the Si57x/598/599: Output Enable or OE. By
default, the OE signal is pulled HIGH on the Si57x-EVB and may be pulled low by installing a jumper at J9.
To support OE active LOW control, make the following changes to the Si57x motherboard:
Install R9.
Remove R14.
You can then selectively disable the OE active LOW by installing a jumper at J3. See Figure 4 for the location of
these components.
1.8. Si57x/598/599 Voltage Control Signal
An external voltage control signal may be applied to the control voltage modulation input at SMA connector J17,
silkscreen designation VC_MOD). This voltage supplies the control voltage or voltage modulation input to an Si571
when installed on the DB. No jumper changes are required to support the Si570/598 versus the Si571/599. Pin 1
on the Si571 is the VCpin and is a N/C for the Si570.

Si57x-EVB
Rev. 0.2 9
1.9. Si57x Daughterboard
The Si57x daughterboard can accommodate either Si570/571/598/599 devices and supports all output formats. All
Si570 and Si598 XOs are pin and register compatible, and all Si571 and Si599 VCXOs are pin and register
compatible. Typically, the boards are shipped without the sample device or any output components. Table 4 lists
suggested output loading options for different output formats and coupling configurations.
Table 4. Si57x Daughterboard Output Loading Options
Output
Format
Config REF DES
Location
Value Comments
CML AC coupling
only C2,C3 0.1 µF ac coupling capacitors
CMOS
Near end load
on board
J3 CONN, HEADER, 2X1 High Z probe test point
R3 15 pF Install 0603 load capacitor at resistor location.
Far end
load off board C3 33–50 
Install 0603 source impedance matching resis-
tor at capacitor location for driving transmission
line.
LVDS
AC coupling C2, C3 0.1 µF ac coupling capacitors
DC coupling C2, C3 0 Install 0603 resistors at cap locations.
LVPECL
AC coupling
C2, C3 0.1 µF ac coupling capacitors
R2, R3 130–150 Local bias resistors
DC coupling C2, C3 0 Install 0603 resistors at cap locations.

Si57x-EVB
10 Rev. 0.2
OE
components
(R9 on back)
Figure 4. Si57x-EVB Motherboard Default Jumper Locations

Si57x-EVB
Rev. 0.2 11
2. Clock I/O
There are no input clock signals that are routed to and from the DUT via the motherboard. The Si57x
daughterboard output clocks are directly routed from the Si57x daughterboard to SMA connectors J4 and J5.
These connectors are designated CLKP and CLKN, respectively. Each of these output clocks needs to be
terminated into 50 single-ended, 100 differential. Any ac coupling caps or near end LVPECL bias resistors
have to be provided for on the Si57x daughterboard.
3. Configuring the Si57x-EVB
Figure 5. Typical Configuration
- +
- +
+5 V Power Supply
(Optional)
PC
Optional Voltage Source
(for Si571/599)
USB
DB
Frequency Counter
Optional Oscilloscope
or other Instrument
CLKN
CLKP
VC_MOD
CLKN
Si57x-EVB
MB

Si57x-EVB
12 Rev. 0.2
4. Software Installation
The following sections describe how to install and begin using the software. There is also a readme.txt file with the
installation files and a detailed online help file with the actual installed programs which contain additional
information. The latest Programmable Oscillator Software is available online at http://www.silabs.com.
4.1. PC System Requirements
Microsoft Windows 2000 or Windows XP
USB 2.0
1 MB of free hard drive space
1024 x 768 screen resolution or greater (1280 x 1024 recommended)
Microsoft .NET Framework 1.1
EVB Driver (USBXpress)
Note: The EVB driver is provided with the installation files.
4.2. Microsoft .NET Framework Installation
The Microsoft .NET Framework is required before installing and running the software. Details and installation
information about the .NET Framework are available via a shortcut in the NETFramework directory or at the
following web site:
http://www.microsoft.com/downloads/details.aspx?FamilyId=262D25E3-F589-4842-8157-
034D1E7CF3A3&displaylang=en
Contact your system administrator for more details.
4.3. EVB Driver (USBXpress®) Installation
1. Connect the USB cable to the PC.
2. The operating system will recognize the new USB device.
3. The operating system will start the Install New Device Driver wizard. Select "Install from a list or specific
location (Advanced)" and click Next.

Si57x-EVB
Rev. 0.2 13
Figure 6. USBXpress Driver Installation for Windows XP—Options
4. Select "Include this location in the search:" and click Browse to select the “USBXpressDriver” directory on
the CD-ROM drive. Click Next.
Figure 7. USBXpress Driver Installation for Windows XP—Location

Si57x-EVB
14 Rev. 0.2
5. The operating system will install the driver. Click Finish in the last wizard window.
Verify the driver is installed by opening the Device Manager and expanding the "Universal Serial Bus controllers"
section. The USBXpress entry should exist as shown in the figure. This entry appears only when the board is
connected to the PC via USB, and powered on.
Figure 8. USBXpress Driver Entry in the Device Manager
4.4. EVB Software Installation
The software may be installed from a CD packaged with the EVB kit. This software may also come via a zip file.
The installation is similar regardless of how the software is distributed.
To install:
1. Navigate to the Software directory.
2. Double-click on the Setup.exe file.
3. Follow the steps in the wizard to install the program.
Note: Use the default installation location for best results.
4. After the installation is complete, click on StartProgramsSilicon LaboratoriesProgrammable
Oscillator Software. Select one of the programs to control the EVB and device.
5. Refer to the online help in each program by clicking HelpHelp in the menu.
To uninstall:
1. Open Add/Remove Programs in the Windows' Control Panel.
2. Select Programmable Oscillator Software in the list.
3. Click Remove.
4. Follow the steps in the Wizard for complete removal.

Si57x-EVB
Rev. 0.2 15
4.5. EVB Software Description
These programs are available by clicking StartProgramsSilicon LaboratoriesProgrammable Oscillator
Software. Refer to the online help by clicking HelpHelp in the menu of each program to get more detailed
information on how to use the software.
Program Description
Programmable Oscillator
Calculator
The Programmable Oscillator Calculator provides a tuto-
rial-like, high-level interface to using the oscillator. After
specifying the frequencies and I2C address, the software
will automatically determine the new configuration and
program the device.
Register Programmer The Register Programmer provides low-level control of
the oscillator with individual register and bit access.

Si57x-EVB
16 Rev. 0.2
5. Schematics
DUT_VDD
R0603
R0603
VDD5V_FILT
SP0503BAHT
GREEN UB_RED UB_REDUB_RED UB_RED
UB_RED
GREEN
VDD3P3
VDD3P3
USB_B
VBUS
D- D+
USB_GND
Receptacle
R0603
R0603R0603R0603R0603R0603
R0603
VDD5V_FILT
R0603
VDD3P3
VDD5V_FILT
D1 D2 DREF
GNDGREF
S1 S2
SREF
GTL2002
/RST/C2CK
D+ D-
GND
P0.0 P0.1
P0.2/XTAL.1 P0.3/XTAL.2
P0.4 P0.5
P0.6/CNVSTR
P0.7/VREF
P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 P2.0 P2.1 P2.2 P2.3 P2.4 P2.5 P2.6 P2.7
P3.0/C2D
REGIN
VBUS
VDD
C8051F320
HTST-105-01-T-DV
SMT SHROUDED HEADER
R0603
Reg Out 100 mA
AKA VBUS1
RESET CIRCUIT
Connector Programming In-Circuit
MOUNT ON BACK.
BIDIRECTIONAL
USB I/F
LEVEL TRANSLATOR
I2C LEVEL SHIFTER
MOUNT THESE COMPONENTS ON BACK.
ICP I/F
Bypass Jumpers
Disable Jumper
TP32 TP31
TP2 MCU_SCL
TP33
C2 33UF
C1 33UF
R12
1K
0
R30
R8
0
R0603
NOPOP
L1
BLM31A601S
1 2
J16
12
J2
12
J1
J11
1
10 2
34 56 78 9
J12
10 9 27 28 29 30 31 32 1 2 5 4
3
8
7
6
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
U1
81 7
4
6 5
2 3
U3
OE
TP5
TP4
MCU_SCL
MCU_SEL3R3VL
MCU_SDA
MCU_SPARE4
R5
200K
R6
1.69K
R19
1K
R20
1K
R13
1.69K
R17
1.69K
R18
1.69K
MCU_C2CK
57X_SDA
R7
0
2 34
1
J15
VDD5V_USB
VDD5V_TERM
D6
OE
D1
VDD5_FILT
D2
MCU_VDD3P3
D4
2R5V
D5
1R8V
D3
3R3V
D7
USB
TP22
TP3
TP6
TP8
TP7
J7
MCU_SHDNL MCU_SPARE1 VDDMID_MEAS
12
43
U4
OEL
1K
R1
1R8VL
MCU_RSTN
0
R21
1K
R10
P_3P0
MCU_SEL2R5VL
C11
0.1UF
SW1
R3
1K
0.1UF
C3 22PF
C5
2200PF
C4
R4
0
C9
0.1UF
C10
1UF
C17
0.1UF
0
R26
0
R27
0
R28
0
R29
MCU_SPARE5 MCU_SPARE3 MCU_SPARE2
SPARE3 SPARE5 SPARE1 SPARE4
TP21
TP23
VDD5V_FILT
USBL
VDD5V
2R5VL
3R3VL
0.1UF
C6
57X_SCL
MCU_SDA
SPARE2
Figure 9. Si57x-EVB Motherboard Schematic (Page 1)

Si57x-EVB
Rev. 0.2 17
DUT_VDD
GND GND GND
GND
GND2 GND1GND4GND3
VDD5V_FILT
R0603 R0603
GND2 GND1GND4GND3
DUT_VDD
VDD5V_FILT
DUT_VDD
LTC3025EDC BIAS OUT SHDN
ADJ GND
PAD_GND
IN
Iout = 300 mA Adj Regulator
R0603 R0603 R0603
R0603
SMA SMA
SMA
R0603
R0603
R0603R0603R0603
LHS Jumper = 2.5V No jumper = 1.8V RHS jumper = 3.3V
DUT Daughter Board Voltage Regulator
MCU Bypass Jumpers VOUT Select
DUT Daughter Board I/F Connectors
MOUNT ON BACK. ZENER
CLKP
VOUT = 0.4 * (1+(R2/R1))
CLKN
Components OE Active Low Optional
TP35TP34TP11
R1A
47.5K
R1B
95.3K
R1C
44.2K
R2
165K
R31
4.75K
J17
VC
J4 J5
J6
1 2
J9 1
2
J101
2
J8
1 2
J3
NOPOP
R9
1K
NOPOP
R16
1K
R15
1K
R14
1K
14 6
5 2
7
3
U2
57X_SCL 57X_SDA
OE
CLKP
CLKP
CLKN
CLKN
VC
TP27
TP24
TP26TP17 TP19 TP25
TP15
TP13
Z1
1
3
5
7
9
11
13
15
17
19
21
23
25
27
31
33
35
37
39
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
29
J14
1UF
C16
VDDMID_MEAS
R33
10K
SPARE1
R32
10K
MCU_SHDNL
MCU_SHDNL
0.1UF
C14
MCU_SEL3R3VL MCU_SEL2R5VL
0.1UF
C15
MCU_SEL2R5VL MCU_SEL3R3VL
OE
57X_SCL
57X_SDA
1
3
5
7
9
11
13
15
17
19
21
23
25
27
31
33
35
37
39
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
29
J13
SPARE2
SPARE3
SPARE4
SPARE5
TP12
TP14
TP16 TP18 TP20
TP28
OE 57X_SCL 57X_SDA
Figure 10. Si57x-EVB Motherboard Schematic (Page 2)

Si57x-EVB
18 Rev. 0.2
DUT_VDD
R0603
TEST
PAD TEST
PAD
DUT_VDD
GND1GND2GND3 GND4
TEST PAD
TEST PAD
CLK+
CLK-
GND
OE
VDD
SCL
VC
SDA
8-PAD SMD
R0603
GND1GND2GND3 GND4
Components
Optional
VC Filter
Optional
Test Points
TP2 TP3
TP7
J4
NOPOP
C1
.01UF
1 3 5 7 9
11 13 15 17 19 21 23 25 27 31 33 35 37 39
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40
29
J2
R2
133
R4
0
23
465
78
1
U1
C3
.1UF
C2
.1UF
J3
NOPOP
C4
.01UF
NOPOP
CLKN
TP1
TP4
1 3 5 7 9
11 13 15 17 19 21 23 25 27 31 33 35 37 39
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40
29
J1
OUTP OUTN
VC
OUTP
57X_SDA 57X_SCL
TP11TP10TP9TP8
TP6
TP5
57X_VC
R3
133
SPARE2 SPARE1 SPARE5 SPARE3 SPARE4
OE
OUTNOE
CLKP
57X_SCL57X_SDA
Figure 11. Si57x-EVB Daughterboard Schematic

Si57x-EVB
Rev. 0.2 19
6. Bill of Materials
6.1. Si57x-EVB Motherboard
6.2. Si57x-EVB Daughterboard
Item QTY REFERENCE Description Part Number Manufacturer
12
C1,C2 CAP,SM,33UF,6.3V,10%,TANTALUM,3528 TA006TCM336KBR
VENKEL
27
C3,C6,C9,C11,C14,
C15,C17
CAP,SM,0.1UF,16V,20%,X7R,0603 C0603X7R160-104KNE VENKEL
31
C4 CAP,SM,2200PF,16V,10%,X7R,0603 C0603X7R160-222KNE VENKEL
41
C5 CAP,SM,22PF,50V,10%,C0G,0603 C0603C0G500-220KNE VENKEL
52
C10,C16 CAP,SM,1UF,6.3V,X7R,0603 C0603X7R6R3-105KNE VENKEL
65
D1,D2,D3,D4,D5 LED,SM,LN1271,BRIGHT RED LN1271RAL-TR PANASONIC
72
D6,D7 LED,SM,LN1371G,GREEN LN1371G PANASONIC
88
J1,J2,J3,J7,J8,J9,J10,
J11
CONN,HEADER,2X1 2340-6111TN or 2380-6121TN 3M
93
J4,J5,J17 CONNECTOR,SMA,RA 142-0701-301 JOHNSON
10 1
J6 CONN,HEADER,3X1 2340-6111TN or 2380-6121TN 3M
11 1
J12 CONN,SM,2X5 HTST-105-01-T-DV SAMTEC
12 2
J13,J14 CONN,SM,40POS QSE-020-01-L-D-A-GP SAMTECH
13 1
J15 CONN,USB,B,RECEPT 897-30-004-90-000000 MILL-MAX
14 1
J16 CONN,POWER,2 POSITION 506-5ULD02 Mouse
r
15 1
L1 FERRITE,SM,600 OHM,1500MA BLM31P601SGPT Murata
16 9
R1,R3,R9,R10,R12,
R14,R15,R16,R19,
R20
RES,SM,1K,1%,0603 CR0603-16W-1001FT VENKEL
17 1
R1A
RES,SM,47.5K,1%,0603 CR0603-16W-4752FT
VENKEL
18 1
R1B
RES,SM,95.3K,1%,0603 CR0603-16W-9532FT
VENKEL
19 1
R1C
RES,SM,44.2K,1%,0603 CR0603-16W-4422FT
VENKEL
20 1
R2
RES,SM,165K,1%,0603 CR0603-16W-1653FT
VENKEL
21 9 R4,R7,R8,R21,R26,
R27,R28,R29,R30
RES,SM,0,0603 CR0603-16W-000T VENKEL
22 1
R5
RES,SM,200K,1%,0603 CR0603-16W-2003FT
VENKEL
23 4
R6,R13,R17,R18
RES,SM,1.69K,1%,0603 CR0603-16W-1691FT
VENKEL
24 1
R31
RES,SM,4.75K,1%,0603 CR0603-16W-4751FT
VENKEL
25 2
R32,R33
RES,SM,10K,1%,0603 CR0603-16W-1002FT
VENKEL
26 1
SW1
SWITCH,PUSH BUTTON, MINIATURE 101-0161
MOUSER
27 1
U1
IC,SM,MCU,32 POS,QFN C8051F320
SILICON LABORATORIES
28 1
U2
IC,SM,LINEAR REGULATOR,6 POS, DFN LTC3025EDC
LINEAR TECH
29 1
U3 IC,SM,BI-DIRECTIONAL VOLTAGE TRANSLATOR GTL2002D/G-T PHILIPS
30 1
U4
IC,SM,DIODE ARRAY, 6 POS,SOT143 SP0503BAHT
LITTLEFUSE
31 1
Z1
DIODE,SM,ZENER,3.6V 1SMA5914BT3
ON_SEMI
Item QTY REFERENCE Description Part Number Manufacturer
1 1 C1 CAP,SM,0.01UF,16V,10%,X7R,0603 C0603X7R160-103KNE VENKEL
2 2 J1,J2 CONN,HIGH SPEED HEADER,40POS,SM QTE-020-01-L-D-A-GP SAMTECH
3 1 R4 RES,SM,0,0603 CR0603-16W-000T VENKEL
No Load
42 C2,C3
CAP,SM,0.1UF,16V,20%,X7R,0603 C0603X7R160-104KNE VENKEL
5 1 C4 CAP,SM,0.01UF,16V,10%,X7R,0603 C0603X7R160-103KNE VENKEL
6 2 J3,J4 CONN,HEADER,2X1 2340-6111TN or 2380-6121TN 3M
7 2 R2,R3 RES,SM,133,1%,0603 CR0603-16W-1330FT VENKEL
8 1 U1 ANY-RATE I2C PROGRAMMABLE XO/VCXO XO = Si570, VCXO = Si571 SILICON LABORATORIES

Si57x-EVB
20 Rev. 0.2
7. Layout
7.1. Si57x-EVB Motherboard
Figure 12. Si57x-EVB-MB Silkscreen Side A