Silicon Laboratories Si5-EVB Series Manuel utilisateur

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

VCO input

GND

CLKP

CLKN

NC/FS/VC/OE

NC/FS/OE

1 (1)

3 (2)

4 (3)

6 (4)

CLKP

CLKN

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

 

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

VCO input

GND

CLKP

CLKN

NC/FS/VC/OE

NC/FS/OE

1 (1)

3 (2)

4 (3)

6 (4)

CLKP

CLKN

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

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

J12J12

R6 0 ohmR6 0 ohm

100N

100

4.99K

R7 0 ohmR7 0 ohm

SI5306_6_PIN

NC/FS/SDA/SCL/VC/SD/OE1

NC/FS/SDA/SCL/VC/SD/OE2

GND

CLK 4

CLK 5

VDD 6

R10

49.9

R10

49.9

4.99K

R12 0R12 0

CLKOB

100N

R2 0R2 0

R13

J4J4

100N

R11

127

R11

127

100N

127

J5J5

CLKOB

100N

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

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