CML Microcircuits EV9910B Bedienungsanleitung

CMLMicrocircuits

COMMUNICATION SEMICONDUCTOR

EV9910B/EV9920B

Evaluation Kit

User Manual

UM9910/6 September 2010 Advance Information

Features

• CMX991 and CMX992 Evaluation

• Receiver:

o LNA

o I/Q or IF Output

o Selectable IF Filters

o Test Access

• 450-470 MHz default operation

• 100MHz to 1GHz evaluation

• Transmitter (CMX991 Only)

o IF and RF Outputs

o I/Q Input Interface

o Gain Control

o Optional o/p Filter and Buffer

• PC control interface available

• Interface to EV9810 or EV9100

1. Brief Description

The EV9910B allows the evaluation of the CMX991 RF Quadrature Transceiver and the EV9920B allows

the evaluation of the CMX992 Quadrature / Low IF Receiver. Both Evaluation Kits use the same printed

circuit board, but with different components fitted. This User Manual is also common to both kits. The

CMX991 is an RF Transceiver IC providing I/Q modulator and up-conversion, superheterodyne receiver

and IF local oscillator. The CMX992 includes only the receiver and IF LO sections of the CMX991 and is

ideal for applications that do not require the CMX991 transmitter, for example when a linearised

transmitter is required, in which case the CMX998 Cartesian Loop Transmitter IC could be used for Tx

and the CMX992 for Rx.

Evaluation Kit for CMX991 and CMX992 EV9910B/EV9920B

Access is provided to all CMX991 (CMX992) RF, baseband and control signals by either connector or test

points. Test access points are available to accept common test equipments, such as RF and baseband

signal generators and spectrum analysers. All signal paths are matched by suitable components. The

EV9910B also provides an optional lumped bandpass filter plus buffer amplifier at 460MHz (default) to aid

evaluation. The overall evaluation frequency range of this Evaluation Kit is for RF frequencies between

100MHz and 1GHz, with default operation over 450MHz to 470MHz. In the form of a populated PCB, this

flexible Evaluation Kit enables users to configure and evaluate the CMX991 (CMX992) devices for various

applications and frequency bands.

The on-board CMX991 (CMX992) is controlled via its C-BUS serial interface. The PE0002 Interface Card

is available separately to support PC-based control of the EV9910B/EV9920B. The PE0002 uses

ES9910xx.exe PC software, part of the ES9910xx.zip file, which is available from the CML website. This

software enables the PE0002 to control either an EV9910B or an EV9920B Evaluation Kit.

Evaluation Kit for CMX991 and CMX992 EV9910B/EV9920B

CONTENTS

Section Page

1. Brief Description.....................................................................................1

2. Preliminary Information..........................................................................6

2.1. Laboratory Equipment ........................................................................ 6

2.2. Power Supply ..................................................................................... 6

2.3. Handling Precautions ......................................................................... 7

2.3.1. Static Protection ........................................................................... 7

2.3.2. Contents - Unpacking .................................................................. 7

2.4. Approvals............................................................................................ 7

3. Quick Start...............................................................................................8

3.1. First – Initial Setup.............................................................................. 8

3.1.1. Make External Connections and Apply Power ............................ 8

3.1.2. Hardware/Software Installation (for PE0002) ............................ 10

3.2. Second – Configure.......................................................................... 11

3.2.1. Rx Configuration ........................................................................ 11

3.2.2. Tx Configuration (CMX991 Only)............................................... 12

3.3. Third – Operate ................................................................................ 14

4. Signal Lists............................................................................................15

5. Circuit Schematics and Board Layouts..............................................21

6. Detailed Description .............................................................................23

6.1. Hardware Description ....................................................................... 23

6.1.1. Receiver (CMX991 and CMX992) ............................................. 23

6.1.2. Transmitter (CMX991 only)........................................................ 25

6.1.3. Local Oscillator (LO) .................................................................. 26

6.1.4. Power Supply............................................................................. 26

6.2. Adjustments and Controls ................................................................ 27

6.2.1. Operation on other frequency bands ......................................... 27

6.2.2. 2nd IF Operation ......................................................................... 27

6.2.3. External IF LO............................................................................ 28

6.2.4. Input to CMX991 (CMX992) 1st Mixer........................................ 28

6.3. Software Description ........................................................................ 28

6.3.1. The ‘C-BUS Control’ Tab ........................................................... 29

6.3.2. The ‘C-BUS Control Extended’ Tabs (C-BUS Ctrl Ext. 1 and 2)29

6.3.3. The ‘CMX991\CMX992 (1)’ Tab ................................................ 31

6.3.4. The ‘CMX991\CMX992 (2)’ Tab ................................................ 32

6.3.5. The Script Handler Tab.............................................................. 33

6.4. Application Information ..................................................................... 36

6.4.1. Rx Testing the CMX991 (CMX992) with the CMX910............... 36

6.5. Troubleshooting................................................................................ 37

6.5.1. General (CMX991 and CMX992)............................................... 37

6.5.2. Receiver Operation (CMX991 and CMX992) ............................ 37

6.5.3. Transmitter Operation (CMX991 only)....................................... 38

7. Performance Specification...................................................................39

7.1. Electrical Performance ..................................................................... 39

7.1.1. Absolute Maximum Ratings ....................................................... 39

7.1.2. Operating Limits......................................................................... 39

7.1.3. Operating Characteristics .......................................................... 40

Evaluation Kit for CMX991 and CMX992 EV9910B/EV9920B

Table Page

Table 1 – Signal List....................................................................................................................... 16

Table 2 – C-BUS 1 Interface.......................................................................................................... 17

Table 3 – EV9810 Auxiliary ADC/DAC Interface ........................................................................... 18

Table 4 – Test Loops ..................................................................................................................... 18

Table 5 – Test Points ..................................................................................................................... 19

Table 6 – Jumper Links.................................................................................................................. 20

Table 7 – EV9910B/EV9920B and EV9100 interconnection details ............................................. 36

Table 8 – Typical sensitivity performance...................................................................................... 36

Table 9 – Typical Adjacent Channel Rejection performance......................................................... 36

Table 10 – Possible general errors................................................................................................ 37

Table 11 – Possible receiver errors ............................................................................................... 37

Table 12 – Transmitter possible errors ..........................................................................................38

Figure Page

Figure 1 – BlockDiagram ................................................................................................................ 5

Figure 2 – Typical Evaluation Connections for EV9910B/EV9920B ............................................... 9

Figure 3 – EV9910B/EV9920B Connection to PC Using PE0002................................................. 10

Figure 4 – USB Driver Installation Message Box........................................................................... 11

Figure 5 – PCB Layout: top............................................................................................................ 21

Figure 6 – PCB Layout: bottom...................................................................................................... 22

Figure 7 – Typical LNA S21 and S11 response ............................................................................... 24

Figure 8 – Typical response of optional Tx filter + buffer............................................................... 26

Figure 9 – The ‘C-BUS Control’ Tab..............................................................................................29

Figure 10 – The ‘C-BUS Control Extended’ Tab............................................................................ 30

Figure 11 – The ‘CMX991\CMX992 (1)’ Tab ................................................................................. 31

Figure 12 – The ‘CMX991\CMX992 (2)’ Tab ................................................................................. 32

Figure 13 – The ‘Script Handler’ Tab............................................................................................. 33

Figure 14 – Loading a Script File................................................................................................... 34

Figure 15 – The ‘Trace Dialog’ Box ............................................................................................... 35

It is always recommended that you check for the latest product datasheet version from the

Datasheets page of the CML website: [www.cmlmicro.com].

This is Advance Information; changes and additions may be made to this specification. Parameters

marked TBD or left blank will be included in later issues. Items that are highlighted or greyed out should

be ignored. These will be clarified in later issues of this document. Information in this advance document

should not be relied upon for final product design.

Evaluation Kit for CMX991 and CMX992 EV9910B/EV9920B

Control

Registers

External

Resonator &

Varactors

Integer-

N PLL

C-BUS

1st IF Xtal

Filters

Differential

RXI & RXQ O/P

2nd IF O/P

Div

Tx I/Q Conditioning

Amps

2nd IF Ceramic Filter

19.2MHz

VCTCXO

LNA

CMX991/

CMX992

C-BUS

Interface

RXIN1

TX_LO

IQMOD_OUT

J11

TXQ

J10

TXI

Differential

IQ Inputs

LNA Control

RXIN2

Tx Buffer Tx Filter

J15

EXT_IF_LO

REFIN

J12

991Tx_OUT

Differential

Amplifiers

J22

RXQ

J23

RXI

IFOUT

IFIN

KEY

Interface Connector

Coax Connector

Test Access Connections

Not Fitted on EV9920B

CMX991 only

J14

TXOUT

Div

RXLO

Figure 1 – Block Diagram

Evaluation Kit for CMX991 and CMX992 EV9910B/EV9920B

2. Preliminary Information

The EV9910B/EV9920B provides a platform for evaluation of either the CMX991 or the CMX992.

The PCB is fitted with either a CMX991 (EV9910B) or a CMX992 (EV9920B).

To use the EV9910B/EV9920B, a separate PC or

micro-controller is required to control the CMX991

(CMX992) via its C-BUS interface. This controller is

not part of the EV9910B/EV9920B kit. A separate

CML product (PE0002) is available which provides

the controller functionality and interfaces to a

standard PC by means of a USB cable.

Part Numbers:

• EV9910B – PCB fitted with CMX991 and fully

populated.

• EV9920B – PCB fitted with CMX992 and with

only LO and Receiver sections populated.

• PE0002 – Universal Controller Card which can

be used for EV9910B/EV9920B.

Note: This kit is referenced generically as

EV9910B/EV9920B throughout this document and

this covers both build states: EV9910B and

EV9920B. Where features are specific to EV9910B

or EV9920B, this is noted, for example ‘CMX991

only’ implies the feature is only available on an

EV9910B kit and not on kits supplied as EV9920B.

2.1. Laboratory Equipment

The following laboratory equipment is

recommended for use with this evaluation kit:

• Power Supply

(Dual Power Supply if using PE0002).

• Spectrum Analyser (100MHz to 1GHz)

• RF Signal Generator(s) (100MHz to 2GHz)

• I/Q Signal Source

• Oscilloscope

• Personal Computer + PE0002 or other C-BUS micro-controller

For more detailed design or investigation work, other RF test equipment may be required.

2.2. Power Supply

The supply input voltage to the PCB is 7.2V (5.25V to 8V acceptable). On board regulators are

provided to generate all voltage rails used on the PCB (3.3V and 5V rails are used).

The 7.2V supply should be rated at 1A.

NOTE: Care should be exercised with the supplies, as they are not protected from reverse

polarity.

NOTE: When using the EV9910B/EV9920B kit with a PE0002 kit, power is not supplied to

the PE0002 via the C-BUS connector (J18). The PE0002 must be connected directly to a

separate +5V regulated power supply.

Glossary

ADC Analogue to Digital Converter

B/B Baseband

BER Bit Error Rate

C-BUS 4-Wire control interface, see

CMX991 (CMX992) Datasheet

CW Continuous Wave

DAC Digital to Analogue Converter

DC Direct Current

EMC Electro-Magnetic Compatibility

ESD Electro-Static Discharge

GUI Graphical User Interface

IF Intermediate Frequency

LNA Low Noise Amplifier

LO Local Oscillator

NF Not Fitted

PA Power Amplifier

PC Personal Computer

PCB Printed Circuit Board

PER Packet Error Rate

PLL Phase Locked Loop

RF Radio Frequency

Rx Receiver

SLI Signal Level Indicator

TBD To Be Decided

Tx Transmitter

VCO Voltage Controlled Oscillator

VGA Variable Gain Amplifier

Evaluation Kit for CMX991 and CMX992 EV9910B/EV9920B

2.3. Handling Precautions

Like most evaluation kits, this product is designed for use in office and laboratory environments.

The following practices will help ensure its proper operation.

2.3.1. Static Protection

This product uses circuits that can be damaged by electrostatic discharge. Partially damaged

circuits can function erroneously, leading to misleading results. Observe ESD precautions at all

times when handling this product.

2.3.2. Contents - Unpacking

Please ensure that you have received all of the items on the separate information sheet (EK9910)

and notify CML within 7 working days if the delivery is incomplete.

2.4. Approvals

This product is not approved to any EMC or other regulatory standard. Users are advised

to observe local statutory requirements, which may apply to this product and the radio

frequency signals that may emanate from it.

Evaluation Kit for CMX991 and CMX992 EV9910B/EV9920B

3. Quick Start

This section provides instructions, in three steps, for users who wish to experiment immediately

with the evaluation kit at 460MHz. This is the default frequency of the kit’s hardware configuration.

A more complete description of the kit and its use appears later in this document. The EV9910B

includes a CMX991 and the EV9920B includes a CMX992 integrated circuit.

Accordingly, before using the EV9910B/EV9920B, the user should read the current CMX991

or CMX992 datasheet.

3.1. First – Initial Setup

3.1.1. Make External Connections and Apply Power

Perform the following steps in sequence:

1. Connect test leads as shown below in Figure 2.

2. Connect a Controller to C-BUS interface J17 or J18 (PE0002 can be used – see Figure 3).

3. Install PE0002 hardware/software and apply power to PE0002 – see section 3.1.2.

4. Power should be applied to the main supply (7.2V nominal).

Evaluation Kit for CMX991 and CMX992 EV9910B/EV9920B

RF Signal

Generator (Signal)

+7.2VGND

Baseband IQ

Generator

Receiver

I/Q

Output RF Signal

Generator (LO)

RF Spectrum

Analyser

CMX991

(CMX992)

J18

J16

J23

J15

J11 J10 J14

J12

J22

EV9910B

EV9920B

C-BUS

Figure 2 – Typical Evaluation Connections for EV9910B/EV9920B

Evaluation Kit for CMX991 and CMX992 EV9910B/EV9920B

GND+5V

PE0002

USB

Connection

to PC

CMX991

(CMX992)

J18

J16

J23

J15

J11 J10 J14

J12

J22

EV9910B

EV9920B

+7.2VGND

Figure 3 – EV9910B/EV9920B Connection to PC Using PE0002

3.1.2. Hardware/Software Installation (for PE0002)

• Copy the file ‘ES9910xx.zip’, which is downloaded from the CML website following

registration, to the hard drive of your host PC. This is a customised version of the

‘ES0002xx.zip’ software.

• Extract the files to the hard drive of your host PC.

• Connect the PE0002 Interface Card to the EV9910B/EV9920B via the right angle connector,

either J5 or J3. C-BUS port 1 (connector J5) is recommended, for full software functionality.

• Connect a dc supply to the PE0002 Interface Card and set to the voltage level to 5V.

• Connect a dc supply to the EV9910B/EV9920B and set voltage level to 7.2V.

• Attach a USB cable from connector J2 of the PE0002 Interface Card to the PC USB port.

• Turn on the power supply to the PE0002. The power on indicator D6 will light.

• Install the USB driver when requested. The driver is in the same folder where the

’ES9910xx.zip’ files were extracted to, in ‘..\Driver’. Follow instructions on the screen to install

the USB driver. Click the ‘Continue Anyway’ button when the Message Box in Figure 4 is

shown.

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