Silicon Labs Si5338-EVB User guide

Brand: Silicon Labs

Model: Si5338-EVB

Type: User guide

This manual is also suitable for

Si5330/34/35/38 Evaluation Board -- Si5338-EVB

Silicon Labs Si5338-EVB is used for evaluating the Si5330/34/35/38 family of any-frequency, any-output clock generators and clock buffers. The EVB is fully powered from a single USB port and has an onboard 25 MHz XTAL that allows standalone asynchronous operation on the Si5334/35/38. The GUI programmable VDD supply allows the device to operate from 3.3, 2.5, or 1.8 V. The 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.

Si5338-EVB

Si5330/34/35/38 EVALUATION BOARD USER’S GUIDE

Description

The Si5338-EVB is used for evaluating the Si5330/34/

35/38 family of any-frequency, any-output clock

generators and clock buffers.

EVB Features

 Fully powered from a single USB port.

 Onboard 25 MHz XTAL allows standalone

asynchronous operation on the Si5334/35/38.

 GUI programmable V

supply allows device to

operate from 3.3, 2.5, or 1.8 V.

 GUI programmable V

DDO

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 V

and all four V

DDO

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.

Si5338-EVB

2 Rev. 1.4

1. Functional Block Diagram

A functional block diagram of the EVB is shown in Figure 1. The MCU performs the USB to I

C 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. I

jumpers allow disconnection of the Si533x device from the I

C bus to allow external control from another I

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.

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.

XTAL

MCU

USB

Connector

* indicates unpopulated components

IN1

IN2

IN5

IN6

IN3

IN4

CLK0A

CLK0B

VDDO0

VReg

CLK1A

CLK1B

VDDO1

term

CLK2A

CLK2B

VDDO2

term

CLK3A

CLK3B

VDDO3

term

Si5338

VReg

term

VDD

I2C

Bus

IN7/SCL

IN8/SDA

INx_CTRL

Jumpers

I2C Bus

I2C

Bus

Status

LEDs

Reset

Switch

VDDO

Jumpers

INTR

I2C

Jumpers

VDD

Jumpers

Si5338-EVB

Rev. 1.4 3

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 I

C bus from the MCU.

SDA—Connects the Si533x SDA pin to the I

C 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.

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.

I

C (Green)—Indicates when there is active I

C 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.

Si5338-EVB

4 Rev. 1.4

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.

Si5338-EVB

Rev. 1.4 5

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)

· Place 200  resistors in place of R1 and R4.

· Place 0  resistors in place of C4 and C7.

For 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.

Place 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.

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 V

DDO

: R2 = 2 k, R3 = 2 k, R1 = 50 , C4 = 0.1 µF

For 3.3 V V

DDO

: 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.

Si5338-EVB

6 Rev. 1.4

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

USB 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

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

Si5338-EVB

Rev. 1.4 7

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.

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.

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.

Si5338-EVB

8 Rev. 1.4

Figure 6. Successful Driver Installation

Si5338-EVB

Rev. 1.4 9

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

Si5338-EVB

10 Rev. 1.4

8. Si5338-EVB Schematics

VDDO1

VDDO3

VDDO2

VDD

VDDO0

+3.3V

VDDO0

VDDO1

VDDO2

VDDO3

SDA_5338

SCL_5338

INTRPT

IN3_DRV

IN4_DRV

IN5_DRV

IN6_DRV

IN1_DRV

IN2_DRV

SCL_DRV

SDA_DRV

Place the 49.9 ohm resistor and

.1uf cap very close to the 5338

pins. The 2K resistors can be

further away.

Place R close to XTAL pins

Si5338

Dummy XTAL used for trace matching

Place close to output pins

SMA

IN2

SMA

IN2

R33

R25

R47

49.9

R47

49.9

0.1uF

R122 0R122 0

R13

C44

0.1uF

C44

0.1uF

R83

130

R40

R128 0R128 0

R26

R45

R12 0R12 0

SMA

IN4

SMA

IN4

R32

130

R32

130

C22

0.1uF

C22

0.1uF

R127 0R127 0

0.1uF

R117

49.9

R117

49.9

C15

0.1uF

C15

0.1uF

R86 100R86 100

R126 0R126 0

R84

C30

0.1uF

C30

0.1uF

SMA

CLK2A

SMA

CLK2A

R20

R36

0.1uF

R88 100R88 100

R77 0R77 0

R125 0R125 0

R34

R124 0R124 0

C18

0.1uF

C18

0.1uF

R123 0R123 0

R78 0R78 0

0.1uF

SMA

CLK0A

SMA

CLK0A

R39

100

R39

100

C41

0.1uF

C41

0.1uF

C14

0.1uF

C14

0.1uF

C54

0.1uF

C54

0.1uF

R82

R18

49.9

R18

49.9

R116

49.9

R116

49.9

R10

100

R10

100

J13

SMA

IN6

J13

SMA

IN6

SMA

CLK1B

SMA

CLK1B

R19

130

R19

130

R27

SMA

IN1

SMA

IN1

130

R120

49.9

R120

49.9

R81

R85 100R85 100

R21

J14

SMA

CLK3B

J14

SMA

CLK3B

R29

49.9

R29

49.9

25MHz

XTAL1

GND

XTAL2

GND

25MHz

XTAL1

GND

XTAL2

GND

R42

C12

0.1uF

C12

0.1uF

R121 0R121 0

R44 0R44 0

SMA

IN3

SMA

IN3

C11

0.1uF

C11

0.1uF

C28

0.1uF

C28

0.1uF

C40

0.1uF

C40

0.1uF

C53

0.1uF

C53

0.1uF

R41

130

R41

130

SMA

CLK0B

SMA

CLK0B

R30

R80

R15

R17

49.9

R17

49.9

0.01uF

C58

10uF

C58

10uF

R115

49.9

R115

49.9

C24

0.1uF

C24

0.1uF

R31

R87 100R87 100

SMA

CLK1A

SMA

CLK1A

C13

0.1uF

C13

0.1uF

R119

49.9

R119

49.9

4.99K

R28

49.9

R28

49.9

J12

SMA

CLK3A

J12

SMA

CLK3A

R14

130

R14

130

TP1

VTT_IN4

Test Point

TP1

VTT_IN4

Test Point

C26

0.01uF

C26

0.01uF

R43

J11

SMA

IN5

J11

SMA

IN5

TP2

VTT_IN3

Test Point

TP2

VTT_IN3

Test Point

R22

R35

C17

0.1uF

C17

0.1uF

C45

0.1uF

C45

0.1uF

C27

0.01uF

C27

0.01uF

R79

Si5338

GND

CLK2A

IN4

IN6

IN3

IN5

IN2

IN1

CLK1B

CLK1A

CLK0B

CLK0A

VDD

VDDO0

VDDO1

VDDO2

VDDO3

VDD

INTR

IN7/SCL

IN8/SDA

GND

CLK3B

CLK3A

CLK2B

C20

0.1uF

C20

0.1uF

R16

R23

130

R37

130

R37

130

C93

10uF

C93

10uF

R95

49.9

R95

49.9

TP12

INTR

Test Point

TP12

INTR

Test Point

R38

R11

R118

49.9

R118

49.9

C23

0.1uF

C23

0.1uF

0.01uF

R24

J10

SMA

CLK2B

J10

SMA

CLK2B

Figure 9. Si5338-EVB Main Schematic

Si5338-EVB

Rev. 1.4 11

IN3_DRIVE

IN4_DRIVE

SCL_5338_DRV

SDA_5338_DRV

IN1_DRIVE

IN2_DRIVE

IN5_DRIVE

IN6_DRIVE

SCL_5338_DRV

SDA_5338_DRV

IN6_EN

IN6_DRIVE

IN5_EN

IN5_DRIVE

IN1_EN

IN2_EN

I2C_5V_EN

IN2_EN

IN5_EN

IN6_EN

I2C_5V_EN

IN1_EN

IN3_DRIVE

IN4_DRIVE

+5V_USB

VDD

+3.3V

VDDO1

VDDO2

VDDO3

+3.3V

VDDO0

+5V_USB

+5V_USB +5V_USB +5V_USB

+3.3V

+5V_USB

+3.3V

+5V_USB

+3.3V

+5V_USB

VDD_pin

VDDO1_pin

VDDO2_pin

VDDO3_pin

VDDO0_pin

IN1_DRV

SCL_5V

SDA_5V

INTRPT

SCL_5V

SDA_5V

SCL_5338

SDA_5338

IN2_DRV

IN3_DRV

IN4_DRV

IN5_DRV

IN6_DRV

SCL_DRV

SDA_DRV

SCL_5V

SDA_5V

Address is 1001100

MCU

0.9V to 5.5V2.7V to 5.5V

CLKIN

CLKINB

CMOS

CMOSFB

FBCLK

FBCLKB

SCL

SDA

+1.2V

+2.5V Ref

Address is 1001101

C47

0.1uF

C47

0.1uF

J16J16

1 2

R63 1.02KR63 1.02K

MMBD3004S-7-F

C51

0.1uF

C51

0.1uF

C49

0.1uF

C49

0.1uF

R96

R97

825

R97

825

J19

HEADER 2x2

J19

HEADER 2x2

Green

USB

Green

USB

R50

R103

511

R103

511

R61

R55

J18J18

1 2

J20J20

1 2

C42

0.1uF

C42

0.1uF

C43

0.1uF

C43

0.1uF

R54

NLSV1T244

VCCA

GND

OEB

VCCB

C48

10uF

C48

10uF

C50

0.1uF

C50

0.1uF

C55

0.1uF

C55

0.1uF

ADG728

U13

ADG728

U13

SDA

RESETB

VDD

GND

SCL

R60

R49

1.02K

R49

1.02K

C34

1uF

C34

1uF

R46

1.02K

R46

1.02K

J17J17

1 2

C38

0.1uF

C38

0.1uF

C56

0.1uF

C56

0.1uF

R69 220R69 220

J23

CONN SOCKET 5x2 Shrouded

J23

CONN SOCKET 5x2 Shrouded

SW PUSHBUTTON

R67

220

R67

220

C35

0.1uF

C35

0.1uF

R52

C59

1uF

C59

1uF

R53

R621K R621K

C52

1uF

C52

1uF

MMBD3004S-7-F

R76

C8051F340

VDD

REGIN

GND

VBUS

D+

D-

P0.0

P0.1

P0.2

P0.3

P0.4

P0.5

P0.6

P0.7

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

P3.1

P3.2

P3.3

P3.4

P3.5

P3.6

P3.7

P4.0

P4.1

P4.2

P4.3

P4.4

P4.5

P4.6

P4.7

RST/C2CK

C2D

J22J22

1 2

R101

511

R101

511

C37

0.1uF

C37

0.1uF

R99

511

R99

511

Green

I2C

Green

I2C

NLSV1T244

U10

NLSV1T244

U10

VCCA

GND

OEB

VCCB

J21

USB Type B

J21

USB Type B

C57

0.1uF

C57

0.1uF

J25J25

1 2

C31

0.1uF

C31

0.1uF

R66

412

R66

412

Red

INTR

Red

INTR

C87

10uF

C87

10uF

R98

511

R98

511

C32

0.1uF

C32

0.1uF

R110

TP11

GND

Test Point

TP11

GND

Test Point

TP3

SDA

Test Point

TP3

SDA

Test Point

NLSV1T244

VCCA

GND

OEB

VCCB

C36

0.1uF

C36

0.1uF

C46

0.1uF

C46

0.1uF

PCA9517A

VCCA

SCLA

SDAA

GND

VCCB

SCLB

SDAB

R64

1.02K

R64

1.02K

NLSV1T244

U11

NLSV1T244

U11

VCCA

GND

OEB

VCCB

ADG728

U14

ADG728

U14

SDA

RESETB

VDD

GND

SCL

R65 1KR65 1K

J15J15

1 2

C33

4.7uF

C33

4.7uF

Green

RDY

Green

RDY

R68

220

R68

220

R111

2.5V

VOUT

GND

VIN

TP4

SCL

Test Point

TP4

SCL

Test Point

J24J24

1 2

C39

0.1uF

C39

0.1uF

R102

825

R102

825

R104

825

R104

825

R100

825

R100

825

R51

Figure 10. Si5338-EVB MCU Schematic

Si5338-EVB

12 Rev. 1.4

VDDO1_int_en

VDDO0_int_en

VDDO3_int_en

VDDO2_int_en

VDD_int_en

VDDO3_int_en

VDDO2_int_en

VDDO1_int_en

VDDO0_int_en

+5V_USB

VDD

VDDO0

VDDO1

VDDO2

VDDO3

+3.3V

VDDO0_pin

VDDO1_pin

VDDO2_pin VDDO3_pin

VDD_pin

SDA_5V

SCL_5V

SDA_5V

SCL_5V

SDA_5V

SCL_5V

Address is 0101100

Address is 0101101

Address is 0101110

Voltage

Regulators

C84

0.1uF

C84

0.1uF

J28

JUMPER

J28

JUMPER

1 2

C83

0.01uF

C83

0.01uF

R73 10KR73 10K

U17

MAX8869

U17

MAX8869

GND

OUT

RSTB

SET

SHDNB

OUT

EPAD

C66

1uF

C66

1uF

C63

10uF

C63

10uF

J27

JUMPER

J27

JUMPER

1 2

R105 10R105 10

U21

MAX8869

U21

MAX8869

GND

OUT

RSTB

SET

SHDNB

OUT

EPAD

R74

47.5K

R74

47.5K

TP8

VDDO3

Test Point

TP8

VDDO3

Test Point

R71

10K

R71

10K

C69

1uF

C69

1uF

TP17

GND

Test Point

TP17

GND

Test Point

J29

JUMPER

J29

JUMPER

1 2

C75

0.01uF

C75

0.01uF

C91

1uF

C91

1uF

C62

1uF

C62

1uF

U16

MAX8869

U16

MAX8869

GND

OUT

RSTB

SET

SHDNB

OUT

EPAD

C64

1uF

C64

1uF

U20

AD5263

U20

AD5263

GND

NC/O2

SDO/O1

VLOGIC

CSB/AD0

RESB/AD1

SHDN_B

VDD

DIS

SDI/SDA

CLK/SCL

VSS

C73

1uF

C73

1uF

TP16

GND

Test Point

TP16

GND

Test Point

U22

MAX8869

U22

MAX8869

GND

OUT

RSTB

SET

SHDNB

OUT

EPAD

C61

10uF

C61

10uF

C60

1uF

C60

1uF

R106 10R106 10

C67

10uF

C67

10uF

C81

1uF

C81

1uF

TP15

GND

Test Point

TP15

GND

Test Point

R72 10KR72 10K

U18

MAX8869

U18

MAX8869

GND

OUT

RSTB

SET

SHDNB

OUT

EPAD

U23

AD5263

U23

AD5263

GND

NC/O2

SDO/O1

VLOGIC

CSB/AD0

RESB/AD1

SHDN_B

VDD

DIS

SDI/SDA

CLK/SCL

VSS

C80

1uF

C80

1uF

C89

1uF

C89

1uF

R109 10R109 10

TP13

VDD

Test Point

TP13

VDD

Test Point

C68

1uF

C68

1uF

TP14

GND

Test Point

TP14

GND

Test Point

C88

1uF

C88

1uF

C78

1uF

C78

1uF

C72

0.01uF

C72

0.01uF

C90

1uF

C90

1uF

R75

15.4K

R75

15.4K

C71

0.01uF

C71

0.01uF

U15

MAX8869

U15

MAX8869

GND

OUT

RSTB

SET

SHDNB

OUT

EPAD

C85

1uF

C85

1uF

TP5

VDDO0

Test Point

TP5

VDDO0

Test Point

C86

0.01uF

C86

0.01uF

C65

10uF

C65

10uF

J26

JUMPER

J26

JUMPER

1 2

C76

0.01uF

C76

0.01uF

TP6

VDDO1

Test Point

TP6

VDDO1

Test Point

C79

10uF

C79

10uF

J30

JUMPER

J30

JUMPER

1 2

TP7

VDDO2

Test Point

TP7

VDDO2

Test Point

C82

10uF

C82

10uF

C74

0.1uF

C74

0.1uF

C70

1uF

C70

1uF

C77

0.1uF

C77

0.1uF

C92

1uF

C92

1uF

R70

10K

R70

10K

U19

AD5263

U19

AD5263

GND

NC/O2

SDO/O1

VLOGIC

CSB/AD0

RESB/AD1

SHDN_B

VDD

DIS

SDI/SDA

CLK/SCL

VSS

R107 10R107 10

R108 10R108 10

TP10

+3.3V

Test Point

TP10

+3.3V

Test Point

Figure 11. Si5338-EVB Voltage Regulation Schematic

Si5338-EVB

Rev. 1.4 13

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

C79,C82

7 17 C60,C62,C64,C66,C68,C69, 1 µF Venkel C0603X7R100-105K

C70,C73,C78,C80,C81,C85,

C88,C89,C90,C91,C92

8 2 D1,D2 MMBD3004S-7-F Diodes Inc. MMBD3004S-7-F

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

J9,J10,J11,J12,J13,J14

12 13 J15,J16,J17,J18,J20,J22, JUMPER Samtec TSW-102-07-T-S

J24,J25,J26,J27,J28,J29,J30

13 1 J19 HEADER 2x2 Samtec TSW-102-07-T-D

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

R50,R51,R60,R61,R62,R65,R7

23 4 R46,R49,R63,R64 1.02K Venkel TFCR0402-16W-E-1021B

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

Si5338-EVB

14 Rev. 1.4

32 4 R97,R100,R102,R104 825 Venkel CR0603-10W-8250F

33 4 R98,R99,R101,R103 511 Venkel CR0603-10W-5110F

34 5 R105,R106,R107,R108,R109 10 Venkel CR2512-2W-10R0D

35 8 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

Do Not Populate

2 NI 9 C4,C7,C14,C18, 0.1 µF Venkel C0402X7R100-104K

C22,C23,C20, C24,C28,C30,

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

R41

17 NI 20 R2,R3,R5,R6,R9,R11,R15, 2K Venkel TFCR0402-16W-E-2001B

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

TP7,TP8,TP9,TP10,TP12,TP13

38 NI 1 U7 25 MHz Epson FA-238 25.0000MB-W

Table 2. Si5338-EVB Bill of Materials (Continued)

Item NI Qty Reference Value Manufacturer Part Number

Si5338-EVB

Rev. 1.4 15

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.

Disclaimer

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reserves the right to make changes without further notice and limitation to product information, specifications, and descriptions herein, and does not give warranties as to the accuracy

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