Si5338-EVB User s Guide and Data Sheet

Si 5 3 3 8 - EVB
Si5330/34/35/38 E VALUATION B OA RD U SER ’ S G UIDE
Description
EVB Features
The Si5338-EVB is used for evaluating the Si5330/34/
35/38 family of any-frequency, any-output clock
generators and clock buffers.

Fully powered from a single USB port.
Onboard 25 MHz XTAL allows standalone
asynchronous operation on the Si5334/35/38.
 GUI programmable VDD supply allows device to
operate from 3.3, 2.5, or 1.8 V.
 GUI programmable VDDO supplies allow each of the
four outputs to have its own supply voltage
selectable from 3.3, 2.5, 1.8, or 1.5 V
 GUI-controlled voltage, current, and power
measurements of VDD and all four VDDO supplies.


Voltage supply jumpers allow easy access for use of
external supplies or current measurements.
 Input signal jumpers allow external control of pin
functions such as output enable, phase inc/dec,
frequency inc/dec, and I2C_LSB.
Rev. 1.4 11/11
Copyright © 2011 by Silicon Labs
Si5338-EVB
Si5338-EVB
1. Functional Block Diagram
A functional block diagram of the EVB is shown in Figure 1. The MCU performs the USB to I2C conversion,
controls the voltage regulators, monitors the INTR pin, and controls the four status LEDS. It also provides control of
the eight input pins when the INx_CTRL jumpers are populated. There are five programmable voltage regulators
(VDD, VDDO0, VDDO1, VDDO2, VDDO3), which supply power to the Si533x device. VDD and VDDO jumpers
allow the option of powering the device from external supplies, or as a convenient point for measuring current. I2C
jumpers allow disconnection of the Si533x device from the I2C bus to allow external control from another I2C
master.
For the Si5334, Si5335, and Si5338 devices, the EVB is shipped with an onboard 25 MHz XTAL to allow
stand-alone asynchronous operation. For Si5335 emulation, synchronization to an external reference is done via
IN1 and IN2. Removal of the XTAL and addition of two 0 ohm resistors is required. IN3, IN4, IN5, and IN6 are not
available as external clock inputs for Si5335.
To
I2C
Bus
VReg
To
I2C
Bus
VDD
Jumpers
XTAL
VReg
VReg
VReg
VReg
VDDO
Jumpers
VDD
*
0
*
IN1
VDDO0
IN2
CLK0A
term
term * *
0
CLK0B
IN3
term
term * *
VDDO1
IN4
CLK1A
term
term * *
CLK1B
IN5
Si5338
IN6
VDDO2
IN7/SCL
CLK2A
IN8/SDA
CLK2B
term
term * *
I2C
Jumpers
VDDO3
I2C Bus
CLK3A
INTR
term
term * *
CLK3B
INx_CTRL
Jumpers
* indicates unpopulated components
MCU
USB
Connector
Status
LEDs
Reset
Switch
Figure 1. EVB Functional Block Diagram
2. Quick Start
1. Install the ClockBuilder™ Desktop software and driver (assumes that Microsoft .NET Framework 1.1 is already
installed).
2. Connect a USB cable from the EVB to the PC where the software was installed.
3. Leave the jumpers as installed from the factory, and launch the software by clicking on Start  Programs 
Silicon Laboratories  ClockBuilder Desktop. Click one of the shortcuts in the group.
2
Rev. 1.4
Si5338-EVB
3. Jumpers
The Si5338-EVB is shipped with jumpers installed on the following positions:
VDD—Connects
the Si533x VDD pin to the VDD programmable voltage regulator.
VDDO0—Connects the Si533x VDDO0 pin to the VDDO0 programmable voltage regulator.
VDDO1—Connects the Si533x VDDO1 pin to the VDDO1 programmable voltage regulator.
VDDO2—Connects the Si533x VDDO2 pin to the VDDO2 programmable voltage regulator.
VDDO3—Connects the Si533x VDDO3 pin to the VDDO3 programmable voltage regulator.
SCL—Connects
the Si533x SCL pin to the I2C bus from the MCU.
the Si533x SDA pin to the I2C bus from the MCU.
The INx-CTRL jumpers are optional jumpers for enabling MCU control of the Si533x input pins. This feature may
be available in future software releases.
SDA—Connects
4. Status LEDS
There are four status LEDs on the Si5338-EVB:
RDY
(Green)—Indicates that the EVB is operating normally. This LED should always be on.
2
C (Green)—Indicates when there is active I2C communication between the MCU and the Si533x device
or between the MCU and voltage regulators.
USB (Green)—Indicates when there is active communication between the PC and the MCU over the USB
bus.
INTR (Red)—The MCU has detected that the interrupt pin of the Si533x device is enabled. The most
probable cause for an interrupt is because the Si533x has lost its input signal or the PLL has lost lock. The
“Status” tab of the GUI will identify the event that caused the interrupt to occur.
I
Rev. 1.4
3
Si5338-EVB
5. Inputs
The Si5338-EVB has six SMA connectors (IN1-IN6) for receiving external signals. Two of the signals are
differential, and two are single-ended.
5.1. Differential Inputs (IN1/IN2, IN5/IN6)
The differential inputs only need a differential voltage swing of 300 mV to operate, which makes them compatible
with most differential signal types. See “AN408: Termination Options for Any-Frequency, Any-Output Clock
Generators and Clock Buffers—Si5338, Si5334, Si5330”, or Si5335 data sheet if applicable, for details on
interfacing with compatible signal types. It is also possible to lock the Si5334/35/38 to an external signal generator
using one side of the differential input and grounding its complementary side. Take care not to exceed the max
differential voltage of 1.2 V on these inputs. The board is shipped with a 25 MHz XTAL connected to IN1/IN2. The
XTAL removal and resistor changes are required for Si5335 evaluation with an input clock since only IN1 and IN2
are available for input clocking with Si5335. Note that regardless of device, any external input to IN1 & IN2 must be
limited to 1.2 V peak-to-peak (see Figure 2 for resistor locations). When evaluating the Si5330, the XTAL must be
removed. The differential input on pins IN5/IN6 is ac-coupled with a 100  line termination (R39).
Figure 2. Optional Termination Resistors for Differential Inputs IN1/IN2
5.2. Single-Ended Inputs (IN3, IN4) [Not supported in Si5335]
These inputs are dc-coupled to the device. They are compatible with a signal swing as low as 100 mV and a
maximum of 3.63 V. The signal should have a minimum amount of dc bias to ensure that it is never below ground
level.
The EVB provides pads for optional input terminations. These may be necessary when interfacing to SSTL and
HSTL signals.
Note: For details on populated vs. non-populated components, refer to "9. Bill of Materials" on page 13.
4
Rev. 1.4
Si5338-EVB
6. Outputs (CLKxA/CLKxB)
Each of the four differential output drivers is capacitively coupled to the SMA connectors; so, the output signal will
have no dc bias. If a signal with dc bias is required, the ac coupling capacitors can be replaced with a 0  resistor.
The EVB provides pads for optional output terminations. These may be necessary when interfacing to SSTL and
HSTL signals.
6.1. Evaluating LVPECL Output Clocks
The EVB by default is populated to allow evaluating of all output clock formats with the exception of LVPECL
outputs. To evaluate LVPECL signals on the Si5338-EVB, a few components must be soldered down on the board.
Take CLK0 for example of. Note that CLK0 has R85, R121/R122, R1/R4, R2/R5, R3/R6, C4/C7, and C15/C17
attached to the nets of interest. The EVB comes with only R121/R122 and C15/C17 installed. This allows support
of all output types except LVPECL.
Evaluating an ac-coupled LVPECL clock on CLK0 requires a bias resistor of 130 or 200  to ground on each of the
output lines depending on driver VDDO. Refer to AN408, or Si5335 data sheet if applicable, for termination details.
Make the following changes depending on the CLK0 VDDO voltage:
For
3.3 V LVPECL (ac-coupled)
·
·
For
Place 200  resistors in place of R1 and R4.
Place 0  resistors in place of C4 and C7.
2.5 V LVPECL (ac-coupled)
·
·
Place 130  resistors in place of R1 and R4.
Place 0  resistors in place of C4 and C7.
The LVPECL output may also be dc-coupled to an LVPECL receiver. To dc-couple the CLK0 output, make the
component changes below. Note that R2, R3, R5, and R6 depend on VDDO.
0  resistors in place of C15 and C17.
Place 50  resistors in place of R1 and R4.
Place C4 and C7
Select R2 and R3 (and similarly R5 and R6) to give a termination voltage of VTT = VDDO – 2 V.
For LVPECL termination on CLK1, 2, and 3 follow the guidelines above and refer to the schematics in “8.
Si5338-EVB Schematics” as needed.
Place
6.2. Evaluating SSTL/HSTL Output Clocks
To support SSTL/HSTL outputs, either single-ended or differential, replace the output dc blocking capacitors with a
0  resistor. For example, for CLK0 output, replace C15 with 0  resistor for single-ended, or replace both C15 &
C17 with 0  for differential output. Do the same for CLK1,2,3 as needed. Remember to properly terminate at the
receiver input.
The Si5338-EVB can support on-board termination of SSTL/HSTL outputs, if on-board terminated, measurement
of the clock output at the SMA connector would require a high impedance measurement device to prevent
overloading of the output. If on-board output termination is desired, the following components must be installed
(using CLK0 as an example.)
For 1.8 or 2.5 V VDDO: R2 = 2 k, R3 = 2 k, R1 = 50 , C4 = 0.1 µF
For 3.3 V VDDO: R2 = 2.42 k, R3 = 2 k, R1 = 50 , C4 = 0.1 µF
Follow similar guidelines for CLK1,2,3 as required. Refer to AN408, or Si5335 data sheet if applicable, for more
details on clock termination.
Rev. 1.4
5
Si5338-EVB
7. ClockBuilder Desktop 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 as well as a user guide installed with the software.
Download the latest versions of the EVB documentation and the ClockBuilder Desktop software for this EVB by
visiting the following:
EVB User's Guide and documentation set: www.silabs.com/Si5338-EVB.
ClockBuilder Desktop Software: www.silabs.com/ClockBuilder.
7.1. System Requirements
Microsoft
Windows 2000 or Windows XP
2.0
2 MB of free hard drive space
1024 x 768 screen resolution or greater
Microsoft .NET Framework 1.1
USBXpress 3.1.1 driver
USB
Note: USBXpress 3.1.1 driver is provided and installed with the software. Newer or older versions of USBXpress available
from other EVB kits or online have not been tested with this software.
7.2. 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 website:
http://www.microsoft.com/downloads/
details.aspx?FamilyId=262D25E3-F589-4842-8157-034D1E7CF3A3&displaylang=en
There are multiple versions of the .NET Framework available from Microsoft, and they can be installed side-by-side
on the same computer. The software requires version 1.1. Contact your system administrator for more details.
7.3. ClockBuilder Desktop Software Installation
The ClockBuilder Desktop Software is installed from the ClockBuilderDesktopSwInstall.exe file.
1. Double-click the install file to start the wizard.
2. Follow the wizard instructions to complete the installation for both the software and the driver. Use the default
installation location for best results.
3. After the installation is complete, click on Start  Programs  Silicon Laboratories  ClockBuilder
Desktop Software. Select one of the items in the menu including the User Guide to get more details on how to
run the software.
7.4. ClockBuilder Desktop Software Uninstall Instructions
Close all the programs and help files before running the uninstaller to ensure complete removal of the software.
The driver software must be uninstalled separately. See “7.6. USBXpress Driver Installation” for details. To uninstall
the software, use the Add and Remove Programs utility in the Control Panel, as shown in Figure 3.
Figure 3. Uninstall in Add and Remove Programs
6
Rev. 1.4
Si5338-EVB
7.5. ClockBuilder Desktop Software Description
There are several programs to control the Si533x device. These are available by clicking Start  Programs 
Silicon Laboratories  ClockBuilder Desktop Software X.X, where X.X is the software version number. There
is a detailed user guide accessible here and in the Help  Help Menu option of the software.
Table 1. Programs
Program
Description
ClockBuilder Desktop
This automatically programs the necessary registers based on the customer's
desired frequency plan for the Si533x device.
Bit Field Programmer
This utility provides access to each bit field in the register map of the device; so, no
masking and shifting is required to decode each setting or control in the register
map.
Register Programmer
This provides low-level control of the device with individual 8-bit register accesses.
Note: Once installation is successful, the Clock Builder Desktop application should be available in the Windows Start menu
program selection. When running Clock Builder Desktop, an opening page allows selection of the desired target device.
Please select the appropriate target device from the list of available devices in order to ensure intended operation.
7.6. USBXpress Driver Installation
The EVB uses the Silicon Labs USBXpress driver to allow the EVB to communicate with the computer via USB.
The driver is installed after the EVB software is installed. Click Install to run the driver installation. Clicking Cancel
will not install any files, and the EVB will not work with the software.
Figure 4. Driver Installer Dialog
Note: If the driver has already been installed on the computer before, it will not be reinstalled, and a message box will appear
as shown in Figure 5.
Figure 5. Driver Already Installed
The installer will copy the necessary driver files and update the operating system. However, for every different EVB
connected to the same computer, the hardware installation wizard will run to associate this driver with the new
EVB. Let the wizard run with its default settings. Figure 6 shows a successful driver installation.
Rev. 1.4
7
Si5338-EVB
Figure 6. Successful Driver Installation
8
Rev. 1.4
Si5338-EVB
The USBXpress driver may be removed via the Add and Remove Programs utility in the Control Panel. Locate the
entry called Silicon Laboratories USBXpress Device. Click the button, and it should show the version and location
of what it will remove.
Figure 7. Driver Uninstall Location
The USBXpress installation files are located with the ClockBuilder Desktop Software. The driver files for the EVB
may be reinstalled from this location or by running the install software.
Figure 8. Driver Installation Files
Rev. 1.4
9
Rev. 1.4
IN6
IN5
IN4
IN3
IN2
J13
SMA
J11
SMA
J8
SMA
J7
SMA
J3
SMA
J2
SMA
10uF
C58
+
0.01uF
C27
0
0
0.01uF
C26
TP1
Test Point
VTT_IN4
R78
R77
0.01uF
C3
0.01uF
C2
R34
2K
R30
2K
C22
0.1uF
10uF
C93
+
R35
2K
R31
2K
Place the 49.9 ohm resistor and
.1uf cap very close to the 5338
pins. The 2K resistors can be
further away.
R17
49.9
TP2
Test Point
VTT_IN3
R18
49.9
C23
0.1uF
R21
1K
IN2_DRV
R22
1K
IN1_DRV
R25
1K
0
R45
IN6_DRV
R26
1K
R13
Place R close to XTAL pins
IN5_DRV
0
GND
R23
1K
R24
1K
R12
GND
IN4_DRV
25MHz
GND
XTAL2 XTAL1
U1
U7
XTAL2 XTAL1
GND
0
0
IN3_DRV
R44
2
1
1
2
SDA_5338
SCL_5338
INTRPT
100
R10
TP12
Test Point
INTR
R7
4.99K
R29
49.9
100
R39
SDA_DRV
R28
49.9
+3.3V
SCL_DRV
VDD
R84
R83
0
0
C13
0.1uF
C11
0.1uF
19
12
8
6
5
4
3
2
1
U2
IN8/SDA
IN7/SCL
INTR
IN6
IN5
IN4
IN3
IN2
IN1
Si5338
C8
0.1uF
0
R80
VDDO0
C5
0.1uF
CLK3B
CLK3A
CLK2B
CLK2A
CLK1B
CLK1A
CLK0B
CLK0A
R82
0
9
10
13
14
17
18
21
22
R88
R87
R86
R85
100
100
100
100
R128 0
R127 0
R126 0
R125 0
R124 0
R123 0
R122 0
R121 0
R47
49.9
Place close to output pins
C12
0.1uF
C9
0.1uF
VDDO3
0
R81
VDDO2
Figure 9. Si5338-EVB Main Schematic
4
3
3
4
25MHz
Dummy XTAL used for trace matching
R79
0
VDDO1
16
IN1
7
VDD
24
VDD
Si5338
VDDO0
15
VDDO2
11
VDDO3
20
GND
23
VDDO1
GND
10
25
R95
49.9
R115
49.9
R116
49.9
R117
49.9
R118
49.9
R119
49.9
R120
49.9
VDDO3
VDDO3
R36
2K
R33
2K
R27
2K
R20
2K
R16
2K
R15
2K
R11
2K
R9
2K
R6
2K
R5
2K
R3
2K
R2
2K
R43
2K
R42
2K
R40
2K
R38
2K
VDDO2
VDDO2
VDDO1
VDDO1
VDDO0
VDDO0
C30
0.1uF
R41
130
C28
0.1uF
R37
130
0.1uF
C54
C24
0.1uF
R32
130
C20
0.1uF
R19
130
C18
0.1uF
R14
130
C14
0.1uF
R8
130
C7
0.1uF
R4
130
C4
0.1uF
R1
130
0.1uF
C53
0.1uF
C45
0.1uF
C44
0.1uF
C41
0.1uF
C40
0.1uF
C17
0.1uF
C15
SMA
J14
SMA
J12
CLK2A
CLK1B
CLK1A
CLK0B
CLK0A
CLK3A
CLK2B
CLK3B
SMA
J10
SMA
J9
SMA
J6
SMA
J5
SMA
J4
SMA
J1
Si5338-EVB
8. Si5338-EVB Schematics
VDD
+5V_USB
+3.3V
J21
USB Type B
1
2
3
4
VDDO3
R66
412
VDDO1
VDDO0
0.1uF
S8
S7
S6
S5
S4
S3
S2
S1
U13
ADG728
9
10
11
12
7
6
5
4
+5V_USB
R51
1K
C38
R76
1K
+5V_USB
0.1uF
D
A1
A0
RESETB
SDA
SCL
+5V_USB
2
3
1
15
16
8
D1
MMBD3004S-7-F
R52
2K
+3.3V
R50
1K
R55
2K
+3.3V
C51
10uF
C48
+
GND
Test Point
TP11
+5V_USB
VDDO2
SDA_5338
SCL_5338
SDA_5V
SCL_5V
6
5
+5V_USB
VDD
0.1uF
C55
5
6
7
8
EN
3
1
3
1
4
3
2
1
VDD_pin
C39
0.1uF
VDDO1_pin
VDDO2_pin
C33
4.7uF
S8
S7
S6
S5
S4
S3
S2
S1
U14
R61
RESETB
SDA
SCL
A1
A0
D
2
3
1
15
16
8
C52
1uF
1K
1
1
3
5
7
9
J23
2
4
6
8
10
C42
2
4
6
8
10
SDA_5V
SCL_5V
R63
U8
1.02K
Address is 1001101
C57
0.1uF
+5V_USB
C37
R62
C59
1uF
P4.0
P4.1
P4.2
P4.3
P4.4
P4.5
P4.6
P4.7
P3.0
P3.1
P3.2
P3.3
P3.4
P3.5
P3.6
P3.7
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
C43
0.1uF
0.1uF
R64
1.02K
1K
C8051F340
RST/C2CK
C2D
D+
D-
P0.7
P0.6
P0.5
P0.4
P0.3
P0.2
P0.1
P0.0
0.1uF
+3.3V
R49
1.02K
R46
1.02K
CONN SOCKET 5x2 Shrouded
1
3
5
7
9
13
14
8
9
47
48
1
2
3
4
5
6
C34
1uF
+2.5V Ref
R111
0
SDA
Test Point
TP3
+3.3V
SCL
Test Point
TP4
2.5V
VOUT
INTRPT
VIN
U4
GND
2
22
21
20
19
18
17
16
15
30
29
28
27
26
25
24
23
38
37
36
35
34
33
32
31
46
45
44
43
42
41
40
39
10uF
C87
+
+3.3V
Green D6
Green D5
Green D4
Red D3
R110
0
IN1_EN
I2C_5V_EN
IN2_EN
IN5_EN
IN6_EN
IN3_DRIVE
IN4_DRIVE
IN5_DRIVE
IN6_DRIVE
SCL_5338_DRV
SDA_5338_DRV
IN2_DRIVE
IN1_DRIVE
Figure 10. Si5338-EVB MCU Schematic
ADG728
9
10
11
12
7
6
5
4
3
+5V_USB
SW PUSHBUTTON
S1
R60
1K
+3.3V
MCU
R54
2K
+3.3V
VDDO0_pin
R53
2K
+3.3V
+3.3V
VDDO3_pin
D2
MMBD3004S-7-F
HEADER 2x2
4
2
J19
PCA9517A
GND
SDAA
SCLA
VCCA
U6
0.9V to 5.5V
Address is 1001100
SDA_5V
SCL_5V
C56
0.1uF
+5V_USB
4
2
SDAB
SCLB
VCCB
2.7V to 5.5V
I2C_5V_EN
+5V_USB
+3.3V
VDD
+5V_USB
13
GND
14
13
GND
14
11
12
10
VDD
R96
0
R69
R68
R67
R65
220
220
220
1K
RDY
I2C
USB
INTR
+3.3V
OEB
A
U10
+3.3V
4
OEB
A
U11
NLSV1T244
2
+3.3V
NLSV1T244
4
2
IN6_EN
0.1uF
OEB
A
U5
+3.3V
IN6_DRIVE
IN5_EN
C49
0.1uF
4
IN2_EN
IN5_DRIVE
OEB
A
U3
NLSV1T244
2
IN2_DRIVE
C46
0.1uF
C35
4
NLSV1T244
2
IN1_EN
0.1uF
IN1_DRIVE
+3.3V
3
1
1
REGIN
VBUS
GND
7
1
1
6
VCCA
GND
VCCB
6
6
VCCA
GND
VCCB
3
3
VCCA
GND
VCCB
6
VCCA
GND
VCCB
Rev. 1.4
3
C31
B
5
0.1uF
5
0.1uF
5
0.1uF
5
0.1uF
B
B
B
C50
1
825
SDA_5338_DRV
1
1
1
CLKIN
J25
2
2
CMOSFB
CMOS
CLKINB
FBCLK
2
2
2
SDA
SCL
FBCLKB
+3.3V
2
+3.3V
2
+3.3V
2
+3.3V
J24
J22
J20
J18
J17
J16
J15
825
R104
R103
511
R101
511
SCL_5338_DRV
+1.2V
+1.2V
1
IN4_DRIVE
R102
1
825
R100
1
825
R97
1
R99
511
R98
511
IN3_DRIVE
+1.2V
+1.2V
C47
C36
C32
SDA_DRV
SCL_DRV
IN6_DRV
IN5_DRV
IN4_DRV
IN3_DRV
IN2_DRV
IN1_DRV
Si5338-EVB
11
C80
1uF
C68
1uF
+5V_USB
+5V_USB
+5V_USB
0.01uF
10
9
6
5
4
3
2
1
VDD_int_en
8
7
5
4
3
2
SS
16
10
GND
EPAD
RSTB
OUT
OUT
OUT
9
6
5
4
3
2
1
13
12
10
SCL_5V
+5V_USB
C83
0.01uF
R109
1
11
17
6
15
14
13
12
C78
1uF
CSB/AD0
CLK/SCL
2
CSB/AD0
CLK/SCL
14
15
16
17
19
20
21
22
23
24
W4
A4
B4
W2
A2
B2
17
14
15
16
SS
9
16
MAX8869
11
10
R73
C72
0.01uF
R106
10
C62
1uF
1
2
C73
1uF
JUMPER
J27
+5V_USB
10uF
C63
+
VDDO1
Test Point
TP6
VDDO2_int_en
8
7
5
4
3
2
VDDO1
SS
9
16
SCL_5V
SDA_5V
10
GND
EPAD
RSTB
OUT
OUT
OUT
11
SET
MAX8869
NC NC NC
OUT
SHDNB
IN
IN
IN
IN
U18 1
10K
GND
Test Point
TP14
+5V_USB
GND
Test Point
TP15
GND
Test Point
TP16
GND
Test Point
TP17
C85
1uF
+5V_USB
Voltage
Regulators
R70
10K
+5V_USB
17
6
15
14
13
12
C89
1uF
VDDO1_pin
R72
+5V_USB
17
6
15
14
13
12
10K
8
7
5
4
3
2
SS
9
16
13
12
11
9
6
5
4
3
2
1
10
GND
EPAD
RSTB
OUT
OUT
OUT
R75
15.4K
11
SET
MAX8869
17
6
15
14
13
12
CSB/AD0
CLK/SCL
A2
B2
W4
A4
B4
W2
VDDO2_int_en
14
15
VDDO3_int_en
17
16
19
20
21
22
23
24
+5V_USB
VDDO3_int_en
C70
1uF
VDDO2
C86
0.01uF
47.5K
R74
10uF
C82
+
+3.3V
Test Point
TP10
C81
1uF
Address is 0101101
RESB/AD1
SHDN_B
SDO/O1
NC/O2
+5V_USB
10uF
C65
+
VDDO2
Test Point
TP7
AD5263
SDI/SDA
DIS
W3
A3
B3
W1
A1
B1
2
JUMPER
J28
C77
0.1uF
1
U20
C64
1uF
NC NC NC
OUT
SHDNB
IN
IN
IN
IN
+5V_USB
U22 1
10
+5V_USB
C76
0.01uF
R107
C90
1uF
VDDO2_pin
Figure 11. Si5338-EVB Voltage Regulation Schematic
SET
GND
EPAD
RSTB
OUT
OUT
OUT
NC NC NC
OUT
SHDNB
IN
IN
IN
IN
Address is 0101110
RESB/AD1
SHDN_B
SDO/O1
19
20
21
22
23
24
8
7
5
4
3
2
U16 1
VDD_int_en
VDDO0_int_en
VDDO1_int_en
VDD
NC/O2
+5V_USB
10uF
C79
+
VDD
Test Point
TP13
AD5263
SDI/SDA
DIS
W3
A3
B3
W1
A1
B1
U23
SHDN_B
SDO/O1
NC/O2
W4
A4
B4
RESB/AD1
C84
0.1uF
JUMPER
J30
A2
B2
+5V_USB
VDDO1_int_en
C69
1uF
VDDO0
W2
+5V_USB
10uF
C61
+
AD5263
SDI/SDA
DIS
W3
A3
B3
W1
A1
B1
U19
C74
0.1uF
JUMPER
SDA_5V
11
SET
MAX8869
NC NC NC
OUT
SHDNB
IN
IN
IN
IN
C92
1uF
VDD_pin
Address is 0101100
13
12
11
C71
R105
C60
1uF
SCL_5V
9
EPAD
17
6
15
14
13
12
C88
1uF
11
10
GND
U21 1
SS
RSTB
OUT
OUT
OUT
SET
MAX8869
NC NC NC
OUT
SHDNB
IN
IN
IN
IN
16
SDA_5V
VDDO0_int_en
8
7
5
4
3
2
9
VSS
U15 1
2
GND
8
18
1
7
VDD
VDDO0
Test Point
TP5
VLOGIC
10
VLOGIC
VSS
10
VSS
J26
10
VLOGIC
7
VDD
GND
8
Rev. 1.4
18
7
VDD
GND
8
12
18
VDDO0_pin
+3.3V
MAX8869
SS
16
11
10
R71
10K
SET
EPAD
RSTB
OUT
OUT
OUT
GND
SHDNB
IN
IN
IN
9
NC NC NC
OUT
U17 1
IN
+5V_USB
8
7
5
4
3
2
17
6
15
14
13
12
C91
1uF
10
C66
1uF
C75
0.01uF
R108
VDDO3_pin
1
2
JUMPER
J29
10uF
C67
+
VDDO3
VDDO3
Test Point
TP8
Si5338-EVB
Si5338-EVB
9. Bill of Materials
Table 2. Si5338-EVB Bill of Materials
Item NI
Qty
Reference
Value
Manufacturer
Part Number
1
10
C2,C3,C26,C27,C71,C72,
C75,C76,C83,C86
0.01 µF
Venkel
C0402X7R100-103M
2
35
C15,C17,C31,C32,C35,C36,C3
7,C38,C39,C40,C41,C42,C43,
C44,C45,C46,C47,C49,C50,C5
1,C53,C54,C55,C56,C57,C74,
C77,C84,C5,C8,C9,C11,C12
0.1 µF
Venkel
C0402X7R100-104K
C13
4
1
C33
4.7 µF
Venkel
C1206X7R100-475M
5
3
C34,C52,C59
1 µF
Venkel
C1206X7R250-105K
6
7
C48,C61,C63,C65,C67,
10 µF
Kemet
B45196H5106M309
1 µF
Venkel
C0603X7R100-105K
MMBD3004S-7-F
Diodes Inc.
MMBD3004S-7-F
C79,C82
7
17
C60,C62,C64,C66,C68,C69,
C70,C73,C78,C80,C81,C85,
C88,C89,C90,C91,C92
8
2
D1,D2
9
1
D3
Red
Panasonic
LN1271RAL
10
3
D4,D5,D6
Green
Panasonic
LN1371G
11
14
J1,J2,J3,J4,J5,J6,J7,J8,
SMA
Johnson
Components
142-0701-801
12
13
J15,J16,J17,J18,J20,J22,
JUMPER
Samtec
TSW-102-07-T-S
TSW-102-07-T-D
J9,J10,J11,J12,J13,J14
J24,J25,J26,J27,J28,J29,J30
13
1
J19
HEADER 2x2
Samtec
14
1
J21
USB Type B
Tyco
292304-1
15
1
J23
CONN SOCKET 5x2
Shrouded
Tyco
5103309-1
18
1
R7
4.99K
Venkel
CR0402-16W-4991F
19
1
R39
100
Venkel
CR0201-20W-1000F
20
7
R44,R45,R77,R78,R96,R110,R
111
0
Venkel
CR0402-16W-000
21
2
R28,R29
49.9
Venkel
CR0402-16W-49R9F
22
13
R21,R22,R23,R24,R25,R26,
1K
Venkel
CR0402-16W-102J
1.02K
Venkel
TFCR0402-16W-E-1021B
R50,R51,R60,R61,R62,R65,R7
6
23
4
R46,R49,R63,R64
25
4
R52,R53,R54,R55
2K
Venkel
CR0402-16W-2001F
26
1
R66
412
Venkel
TFCR0402-16W-E-4120B
27
3
R67,R68,R69
220
Venkel
CR0402-16W-221J
28
4
R70,R71,R72,R73
10K
Venkel
CR0402-16W-103J
29
1
R74
47.5K
Venkel
CR0603-10W-4752F
30
1
R75
15.4K
Venkel
CR0603-10W-1542F
31
6
R79,R80,R81,R82,R83,R84
0
Venkel
CR0603-16W-000
Rev. 1.4
13
Si5338-EVB
Table 2. Si5338-EVB Bill of Materials (Continued)
Item NI
Qty
Reference
Value
Manufacturer
Part Number
32
4
R97,R100,R102,R104
33
4
R98,R99,R101,R103
825
Venkel
CR0603-10W-8250F
511
Venkel
CR0603-10W-5110F
34
5
35
8
R105,R106,R107,R108,R109
10
Venkel
CR2512-2W-10R0D
R121,R122,R123,R124,
R125,R126,R127,R128
0
Venkel
CR0201-20W-000F
36
1
S1
SW PUSHBUTTON
Mountain Switch
101-0161-EV
37
1
TP11
Test Point
Kobiconn
151-207
38
1
U1
25 MHz
Epson
FA-238 25.0000MB
39
1
U2
Si5338
SiLabs
Si5338N-A-GMR
40
4
U3,U5,U10,U11
NLSV1T244
On Semi
NLSV1T244MUTBG
41
1
U4
2.5 V
Analog Devices
AD1582BRT
42
1
U6
PCA9517A
NXP
PCA9517AD
43
1
U8
C8051F340
SiLabs
C8051F340-GQ
44
2
U13,U14
ADG728
Analog Devices
ADG728BRUZ
45
6
U15,U16,U17,U18,U21,U22
MAX8869
MAXIM
MAX8869EUE50
46
3
U19,U20,U23
AD5263
Analog Devices
AD5263BRUZ20
47
4
Standoffs
SPC Technology
2397
48
4
Screws
Richco
NSS-4-4-01
49
7
Jumpers
Sullins
SPC02SYAN
0.1 µF
Venkel
C0402X7R100-104K
Do Not Populate
2
NI
9
C4,C7,C14,C18,
6
NI
3
C58, C93, C87
10 µF
Kemet
B45196H5106M309
16
NI
8
R1,R4,R8,R14,R19,R32,R37,
130
Venkel
CR0402-16W-131F
2K
Venkel
TFCR0402-16W-E-2001B
C22,C23,C20, C24,C28,C30,
R41
17
NI
20
R2,R3,R5,R6,R9,R11,R15,
R16,R20,R27,R30,R31,R33,
R34,R35,R36,R38,R40,R42,
R43
19
NI
5
R10,R85,R86,R87,R88
100
Venkel
CR0201-20W-1000F
20
NI
2
R12,R13
0
Venkel
CR0402-16W-000
24
NI
8
R47,R95,R115,R116,R117,
49.9
Venkel
CR0402-16W-49R9F
R118,R119,R120
21
NI
2
R17,R18
49.9
Venkel
CR0402-16W-49R9F
37
NI
12
TP1,TP2,TP3,TP4,TP5,TP6,
Test Point
Kobiconn
151-207
38
NI
1
25 MHz
Epson
FA-238 25.0000MB-W
TP7,TP8,TP9,TP10,TP12,TP13
14
U7
Rev. 1.4
Si5338-EVB
DOCUMENT CHANGE LIST
Revision 0.1 to Revision 1.0
Replaced
the voltage input terminal block with
programmable regulators.
The board is entirely powered from USB power.
Added an additional LED to indicate MCU
ready.
Added jumpers on all input pins to allow
external control of features, such as output
enable, and frequency and phase increment
and decrement.
Revision 1.0 to Revision 1.1
Changed
“Si533x configuration” to “Any Rate
Clock Generator” throughout.
Changed “Si5338 Programmer” to “MultiSynth
Clock Programmer” throughout.
Updated Table 1, “Programs,” on page 7.
Updated Figures 3, 4, and 8.
Revision 1.1 to Revision 1.2
Changed
“Any Rate Clock Generator” to
“ClockBuilder Desktop” throughout.
Changed “MultiSynth Clock Programmer” to
“ClockBuilder Desktop” throughout.
Updated Figure 3 on page 6.
Removed “Uninstaller Option” figure.
Updated Figure 8 on page 9.
Revision 1.2 to Revision 1.3
Added
"9. Bill of Materials" on page 13.
Revision 1.3 to Revision 1.4
Added
"6.1. Evaluating LVPECL Output Clocks"
on page 5.
Added references to the Si5335.
Rev. 1.4
15
ClockBuilder Pro
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documentation, software, source
code libraries & more. Available for
Windows and iOS (CBGo only).
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Timing Portfolio
www.silabs.com/timing
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www.silabs.com/CBPro
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Disclaimer
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