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CML Microcircuits
COMMUNICA TION SEMICONDUCTORS
UM6180/5 September 2016
Features
• Evaluation platform for CMX608, CMX618 and
CMX638 RALCWI Vocoder ICs
• 3.5mm stereo jack socket microphone
connections to integral audio CODEC
• Single-ended or differential audio CODEC I/O
• Requires a single, external +5Vdc power supply
• EV6180: For CMX608 and CMX618
1.
Brief Description
This document details the use of two Evaluation Kits: EV6180 for CMX608 and CMX618, EV6380 for
CMX638. The EV6180 and EV6380 Evaluation Kits each provide the means to demonstrate and evaluate
the operation of CMX6x8 RALCWI Vocoder ICs. The boards are operated from a single, external +5Vdc
power supply. On-board voltage regulators provide the required analogue and digital supply voltages.
Each board can be controlled with a PE0003 Evaluation Kit Interface Card and ES0003 GUI software. To
use this software, a host PC and PE0003 Evaluation Kit Interface Card are required. Additionally, an
external audio CODEC is required to demonstrate the CMX608 option (EV6180).
Connectors are provided to allow direct interfacing to the C-BUS and SPI interfaces on the CMX6x8
devices. The on-chip audio CODEC (CMX618/638 devices only) is accessible through two 3.5mm stereo
jack sockets. The audio CODEC signal paths can be configured as single-ended or differential.
2016 CML Microsystems Plc
EV6180/6380
Evaluation Kit
User Manual
• Header connections to the SPI
interface: for use with external
rd
3
party CODECs
• Header connections to the C-BUS
interface: for PE0003 Evaluation
Kit Interface Card or 3
microcontroller (not supplied)
• EV6380: For CMX638
rd
party
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Table of Contents
Related Manuals for CML EV6180
Summary of Contents for CML EV6180
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Page 1: Brief Description
• EV6380: For CMX638 Brief Description This document details the use of two Evaluation Kits: EV6180 for CMX608 and CMX618, EV6380 for CMX638. The EV6180 and EV6380 Evaluation Kits each provide the means to demonstrate and evaluate the operation of CMX6x8 RALCWI Vocoder ICs. The boards are operated from a single, external +5Vdc power supply. -
Page 2: Table Of Contents
2.2.2. Contents - Unpacking............6 2.3. Approvals ..................6 Quick Start ....................7 3.1. Setting-Up the EV6180/6380 with the PE0003 ......7 3.2. Adjustments ................. 7 3.3. Operation ..................7 Signal Lists ....................8 Circuit Schematics and Board Layouts ..........11 Detailed Description ................ - Page 3 Figure 3 – PCB Layout: bottom ...................... 11 Figure 4 – ‘Import Raw Data’ Dialog Box ..................15 It is always recommended that you check for the latest product datasheet version from the Datasheets page of the CML website: [www.cmlmicro.com]. 2016 CML Microsystems Plc UM6180/5...
- Page 4 Evaluation Kit for CMX608/618/638 EV6180/6380 Loudspeaker output Power Supply EV6180/ EV6380 PE0003 EvKit Interface Card Soundcard output Figure 1 – Evaluation Layout Diagram 2016 CML Microsystems Plc UM6180/5...
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Page 5: Preliminary Information
An external voice CODEC is required for demonstrating the CMX608 functionality. This connects to the SPI port connector (J4) on the EV6180. The CMX608/618/638 datasheet contains a section documenting external voice CODEC support. The external CODEC must be supplied by the customer. -
Page 6: Host Pc
2.2.2. Contents - Unpacking Please ensure that you have received all of the items on the separate information sheet (EK6380) and notify CML within 7 working days if the delivery is incomplete. 2.3. Approvals There are no approvals for this product. -
Page 7: Quick Start
Plug the right-angled connector J3 on the EV6180/6380 board directly into right-angled connector J3 on the PE0003. Connect the output of a regulated DC power supply to J2 on the EV6180/6380 and J11 on the PE0003. The supply voltage should be set at +5V. -
Page 8: Signal Lists
External/internal CODEC select INPUTP Positive audio CODEC input INPUTN Negative audio CODEC input OUTP Positive audio CODEC output OUTN Negative audio CODEC output 2, 4, 6, 8 GNDA Analogue ground Table continued on next page…. 2016 CML Microsystems Plc UM6180/5... -
Page 9: Table 1 – Signal List
Digital ground 2, 4 GNDD Table 1 – Signal List TEST POINTS Test Point Default Description Ref. Measurement TP1, TP2 Digital ground TP3, TP4 Analogue ground +1.65V Analogue bias output Table 2 – Test Points 2016 CML Microsystems Plc UM6180/5... -
Page 10: Table 3 – Default Jumper Tab Settings
3 – 4 Short 5 –6 Open IRQN drive select pin 1 – 2 Open 3 – 4 Open 5 – 6 Short Table 3 – Default jumper tab settings Notes: Input Output Power 2016 CML Microsystems Plc UM6180/5... -
Page 11: Circuit Schematics And Board Layouts
Circuit Schematics and Board Layouts For clarity, circuit schematics are available as separate high-resolution files. These can be obtained via the CML website. The layout on each side of the PCB is shown in figures 2 and 3 shown below. -
Page 12: Detailed Description
PE0003 Evaluation Kit Interface Card. This allows the CMX6x8 C-BUS to be driven directly by the PE0003. J3 also has +3.3V digital supply and ground connections. The +3.3V supply can be connected to pins 19 and 20 on connector J3 by fitting the jumper tab on JP3. 2016 CML Microsystems Plc UM6180/5... -
Page 13: Table 4 – Configuration Options For Voice Codec I/O
These can be used to ground test and measurement equipment. Test point TP5 connects to the bias pin of the CMX6x8 and can be used to monitor the state of the bias voltage (1.65V). J11 is an attachment point for the regulated +3.3V digital voltage. 2016 CML Microsystems Plc UM6180/5... -
Page 14: Full-Duplex Demonstration
Audacity, installed on the host PC, PCM samples can be output from the PC sound card and fed into the CODEC input socket on the EV6180/6380. The PCM sample data will be encoded, decoded and the resultant output from the CODEC output socket of the EV6180/6380 can be played back through the sound card on the host PC. -
Page 15: Figure 4 – 'Import Raw Data' Dialog Box
A short guide to using Audacity with the demonstration is described below. Before running through the demonstration it is assumed that the following has been carried out: The EV6180/6380 has been connected to the PE0003 and both boards powered up The ES0003 application is running ... - Page 16 The play button is displayed within the Control toolbar, which by default is located at the top right corner of the Audacity editor window. For continual looped playback of the audio track hold down the shift key whilst pressing the play button. 2016 CML Microsystems Plc UM6180/5...
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Page 17: Performance Specification
Correct operation of the Evaluation Kit outside these limits is not implied. Notes Min. Max. Units Supply (V 16.0 Xtal/External Clock Frequency 24.0 Notes: 1. Allowable maximum crystal frequency is 12MHz. Frequencies above 12MHz should be generated by an external clock source. 2016 CML Microsystems Plc UM6180/5... -
Page 18: Operating Characteristics
2. Measured whilst driving a 32Ω resistive load between OUTP and OUTN pins. 3. Care should be taken to avoid shorting the OUTP and OUTN pins together, or to V or V 2016 CML Microsystems Plc UM6180/5... - Page 19 CML does not assume any responsibility for the use of any circuitry described. No IPR or circuit patent licences are implied. CML reserves the right at any time without notice to change the said circuitry and any part of this product specification.
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