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October 2002

Data Acquisition Products

User’s Guide

SLAU097

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Содержание TLV320AIC12

Страница 1: ... October 2002 Data Acquisition Products User s Guide SLAU097 ...

Страница 2: ...nt that any license either express or implied is granted under any TI patent right copyright mask work right or other TI intellectual property right relating to any combination machine or process in which TI products or services are used Information published by TI regarding third party products or services does not constitute a license from TI to use such products or services or a warranty or end...

Страница 3: ... handling or use of the goods Please be aware that the products received may not be regulatory compliant or agency certified FCC UL CE etc Due to the open construction of the product it is the user s responsibility to take any and all appropriate precautions with regard to electrostatic discharge EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR A...

Страница 4: ...rtainty as to the load specification please contact a TI field representative During normal operation some circuit components may have case temperatures greater than 30 C The EVM is designed to operate properly with certain components above 40 C as long as the input and output ranges are maintained These components include but are not limited to linear regulators switching transistors pass transis...

Страница 5: ...Materials Appendix A TLV320AIC12 13 14 15 Schematic FCC Warning This equipment is intended for use in a laboratory test environment only It gen erates uses and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to subpart J of part 15 of FCC rules which are designed to provide reasonable protection against radio frequency interfe...

Страница 6: ...nstruments Literature Response Center at 800 477 8924 or the Product Information Center PIC at 972 644 5580 When ordering identify this booklet by its title and literature number Updated documents can also be obtained through our website at www ti com Data Sheets Literature Number TLV320AIC12 SLWS115B TLV320AIC13 SLWS139A TLV320AIC14 SLWS140A TLV320AIC15 SLWS141A ...

Страница 7: ...Alone Slave 2 4 2 3 2 Single Master Only 2 5 2 3 3 Master Slave Cascade 2 5 2 3 4 Slave Slave Cascade 2 6 2 4 System Level Considerations 2 6 2 4 1 Grounding Scheme 2 6 2 4 2 I2C Communications 2 6 2 4 3 FSD 2 6 3 Analog Interface 3 1 4 EVM Operation 4 1 5 TLV320AIC12 13 14 15 Bill of Materials 5 1 6 TLV320AIC12 13 14 15 EVM Schematic A 1 ...

Страница 8: ...als 4 2 2 1 Pinout for 40 Pin Connector 2 2 2 2 Jumper Options 2 4 2 3 Stand Alone Slave Jumper Settings 2 5 2 4 Single Master Only Jumper Settings 2 5 2 5 Master Slave Cascade Jumper Settings 2 5 2 6 Slave Slave Cascade Jumper Settings 2 6 3 1 Analog Interface Connectors 3 1 ...

Страница 9: ...TLV320AIC14 TLV320AIC15 This guide refers to the TLV320AIC12 only since the remaining device feature sets are subsets of the TLV320AIC12 Any important differences are noted Figure 1 1 EVM The EVM is split into two complementary halves as shown in Figure 1 1 Slave CODEC Master CODEC Chapter 1 ...

Страница 10: ...1 2 ...

Страница 11: ...terface between the codec EVM and the host system Alternatively if a TI DSK DSP starter kit is the host system a develop ment platform is available from TI This platform provides the additional functions that the codec requires in a convenient form factor Topic Page 2 1 Codec to Platform 2 2 2 2 Codec to Codec 2 3 2 3 Jumper Options 2 4 2 4 System Level Considerations 2 6 Chapter 2 ...

Страница 12: ...5 DIN Data in J1 6 DGND Digital ground J1 7 DOUT Data out J1 8 Reserved Reserved for future use J1 9 FS Frame sync J1 10 Reserved Reserved for future use J1 11 CLKX Transmit clock J1 12 Reserved Reserved for future use J1 13 FSX Frame sync transmit J1 14 Reserved Reserved for future use J1 15 DX Data transmit J1 16 DR Data receive J1 17 RESET Global reset for all devices J1 18 FSR Frame sync recei...

Страница 13: ...t platform Further descriptions regarding the operation of this EVM assumes that the development platform is being used for all additional signals and power 2 2 Codec to Codec It is possible to cascade up to eight EVMs together Since each EVM contains two codecs this enables 16 codec channels to be chained together The EVMs are cascaded simply by mating P1 of the board already resident to J1 of th...

Страница 14: ...ital ground together W9 Gives user the option of disconnecting the 3 3 V driver ground from the regular analog ground W10 Use for odd number codec channels Isolate the data from the co dec not participating in the chain P1 9 P1 10 Last FSD in the chain must be high P1 11 P1 12 SCL must be high P1 13 P1 14 SDA must be high Since the EVM contains two codecs there a variety of options available to th...

Страница 15: ...Only Jumper Settings Jumper 1 2 2 3 W2 Inserted Not inserted W3 Inserted Not inserted W4 Inserted Not inserted P1 9 P1 10 N A N A P1 11 P1 12 Inserted Inserted P1 13 P1 14 Inserted Inserted 2 3 3 Master Slave Cascade This configuration applies to EVM1 only and is the factory set shipping condition When both codecs are used both U1 and U2 are active In this condition U2 is always the master codec a...

Страница 16: ... some system level elements that should be understood with regard to jumper options 2 4 1 Grounding Scheme Each EVM allows the user to connect digital and analog grounds together However when more than one EVM is installed remove this jumper from all EVMs but one to minimize ground loops and maintain audio quality 2 4 2 I2C Communications I2C communications is achieved by the SCL and SDA signals T...

Страница 17: ...n used wherever possible Table 3 1 Analog Interface Connectors TLV320AIC12 TLV320AIC13 TLV320AIC14 TLV320AIC15 Master Slave Master Slave Master Slave Master Slave Input Sources Microphone input J9 J8 J9 J8 J9 J8 J9 J8 INP1 J5 J3 J5 J3 J5 J3 J5 J3 INP2 J4 J2 J4 J2 J4 J2 J4 J2 Output Loads OUTP1 OUTM1 600 Ω line output J7 J6 J7 J6 J7 J6 J7 J6 OUTP2 OUTP3 16 Ω driver output J11 J10 J11 J10 NA NA Chap...

Страница 18: ...3 2 ...

Страница 19: ...cally based on the available MCLK It is now possible to calculate what should be observed after power up by calculating what FS and SCLK should be observed FS J In this example MCLK is generated by the development platform and is equal to 100 MHz J FS MCLK 16 m n p J Default values for m n and p are 16 6 and 8 respectively J FS 100 106 16 16 6 8 J FS 8138 Hz SCLK J SCLK 16 FS number of devices mod...

Страница 20: ...4 2 The captured signals are shown in Figure 4 1 Figure 4 1 EVM Captured Signals FS SCLK ...

Страница 21: ...c ECJ 2YB1H104K 4 1 µF C1 C2 C3 C4 Capacitor 1 µF 10 V ceramic Y5V 0603 Panasonic ECJ 1VF1A105Z 5 10 kΩ R1 R2 R3 R4 R5 Resistor 10 kΩ 1 16 W 5 0603 SMD Panasonic ERJ 3GEYJ103V 2 10 kΩ R6 R7 Resistor 10 0 kΩ 1 8 W 1 1206 SMD Panasonic ERJ 8ENF1002V 2 U1 U2 IC CODEC 1CH 16 bit 3 3 V 30 TSSOP Texas Instruments TLV320AIC12IDBT Alternate IC SGL CH CODEC LP LV 30 TSSOP Texas Instruments TLV320AIC13IDBT ...

Страница 22: ...6 W7 3 Position jumper Samtec TSW 103 07 L S 2 See Assy Dwg 1 000 4 40 Nylon hex thread SP Keystone Electronics 1902E 2 See Assy Dwg 0 500 4 40 Nylon hex thread SP Keystone Electronics 1902C 2 See Assy Dwg 4 40 X 1 4 Machine screw PH SS Building Fasteners PMSSS 440 0025 PH ...

Страница 23: ...A 1 TLV320AIC12 13 14 15 EVM Schematic The TLV320AIC12 13 14 15EVM schematics are provided on the following pages Appendix A ...

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