EV9930W CML Microcircuits

EV9930/EV9930W CML Microcircuits Evaluation Kit User Manual COMMUNICATION SEMICONDUCTORS UM9930/2 September 2009 Provisional Issue Features Operational range: 30MHz to 1GHz Differential or single-ended I/Q inputs Allows full evaluation and investigation of Can utilise PE0002 EvKit interface the CMX993 and CMX993W quadrature card for PC interface or work with modulators custom interface equipment Access to RF, control and baseband Interfaces to CMX910 or CMX981 EvKit signals via connectors and test points 1 Brief Description The EV9930 and EV9930W EvKits allow for rapid and full evaluation of the CMX993 or the CMX993W Quadrature Modulator IC by providing a populated pcb with access to all RF, baseband and control signals by either connectors or test points. Test access points are available to accept common test equipments such as RF and baseband signal generators and spectrum analysers. Control of the CMX993/CMX993W is by registers, which are accessible over the C-BUS interface (an SPI-like serial interface). A PE0002 Interface Card (not supplied) allows the C-BUS interface to be controlled from a PC, via its USB port. Alternatively, the C-BUS interface can be controlled by an external microprocessor. RF signal paths are matched by suitable components and the operating frequency range of the EvKit is for RF frequencies between 200MHz and 1GHz. A simple component change allows a lower operating frequency range of 30MHz to 200MHz. The EV9930/EV9930W baseband inputs can be configured to work with the CMX910 AIS Baseband Processor IC or the CMX981 Advanced Digital Radio Baseband Processor IC standard test equipment or with a custom baseband system. 2009 CML Microsystems Plc Evaluation Kit for CMX993 and CMX993W EV9930/EV9930W CONTENTS Section Page 1 Brief Description .................................................................................................1 1.1 History......................................................................................................4 2 Preliminary Information......................................................................................6 2.1 Laboratory Equipment..............................................................................6 2.1.1 Power Supply..............................................................................6 2.2 Handling Precautions...............................................................................6 2.2.1 Static Protection..........................................................................6 2.2.2 Contents - Unpacking .................................................................6 2.3 Approvals .................................................................................................6 3 Quick Start...........................................................................................................7 3.1 Make External Connections and Apply Power ........................................7 3.2 Typical Configure .....................................................................................8 3.3 Operate ....................................................................................................8 4 Signal Lists..........................................................................................................9 5 Circuit Schematics and Board Layouts..........................................................13 6 Detailed Description .........................................................................................15 6.1 Hardware Description ............................................................................15 6.1.1 Quadrature (I/Q) Modulator ......................................................15 6.1.2 Local Oscillator (LO) .................................................................15 6.1.3 I/Q Baseband Inputs .................................................................15 6.1.4 Differential I/Q Interface............................................................16 6.1.5 Power Supply............................................................................16 6.2 Software Description..............................................................................17 6.2.1 The CMX993(W) Regs ( 02 - 08) Tab..................................17 6.2.2 The Script Handler Tab.............................................................18 6.3 Application Information ..........................................................................19 6.3.1 Typical Performance.................................................................19 6.4 Troubleshooting .....................................................................................21 7 Performance Specification...............................................................................22 7.1 Electrical Performance...........................................................................22 7.1.1 Absolute Maximum Ratings ......................................................22 7.1.2 Operating Limits........................................................................22 7.1.3 Operating Characteristics .........................................................23 2009 CML Microsystems Plc 2 UM9930/2