Texas Instruments TLV320AIC10 EVM User manual


January 2001 AAP Data Converters
User’s Guide
SLWU003D

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Copyright 2001, Texas Instruments Incorporated

How to Use This Manual
iii
Read This First
Preface
Read This First
About This Manual
This document describes of the TLV320AIC10/11 EVM.
How to Use This Manual
This document contains the following chapters:
-Chapter 1 – Introduction
-Chapter 2 – Physical Description
-Chapter 3 – Operation Modes
-Chapter 4 – Analog and Digital Interface
-Chapter 5 – Software Driver
-Chapter 6 – PC Board and Bill of Materials
-Appendix A – Schematics
Trademarks
Code Composer and Code Composer Studio are trademarks of Texas
Instruments.

iv

Running Title—Attribute Reference
v
Chapter Title—Attribute Reference
Contents
1 Introduction 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Features 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 TLV320AIC10/11 Device Block Diagram 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 EVM Block Diagram 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Physical Description 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1 EVM Board Layout 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 EVM Connector Description 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 EVM Jumper Description 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4 EVM Switch Description 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5 EVM Reset Button 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.6 EVM LED Description 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.7 EVM Board Power Supply 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Operation Modes 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 EVM Operation Modes 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.1 AIC10/11 Master Mode 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.2 AIC10/11 Slave Mode 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 Other Basic Configurations 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Analog and Digital Interface 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1 Analog Interface Circuits 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.1 Input Offset Converter Circuits 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.2 DAA Interface 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.3 Microphone Interface 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.4 Speaker Interface 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2 Digital Interface Circuits 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.1 C5402 DSK McBSP Interface 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.2 Host Interface 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.3 MCLK Selection 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.4 AIC10/11 Device Digital Configuration 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Software Driver 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1 AIC10-EVM Test Software 5-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2 TLV320AIC10/11 Plug-In for Code Composer Studio 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3 AIC10/11 EVM Software Driver and Application Examples 5-4. . . . . . . . . . . . . . . . . . . . . . .
5.3.1 Software Structure 5-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.2 System Management Source Programs 5-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.3 Application Programs 5-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Running Title—Attribute Reference
vi
6 PC Board and Bill of Materials (Rev. C) 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1 Printed-Circuit Board (Rev. C) 6-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2 Bill of Materials (Rev. C) 6-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A Schematics A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figures
1–1 TLV320AIC10/11 Device Block Diagram 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1–2 TLV320AIC10/11 EVM Block Diagram 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–1 EVM Board Layout 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–1 Basic Configuration Circuits 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–1 Microphone Interface With TLV320AIC10/11 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4–2 C540x DSP McBSP and AIC10/11 Interface 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5–1 Basic Structure of Software Code 5-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6–1 Printed-Circuit Board (Rev. C, Top) 6-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6–2 Printed-Circuit Board (Rev. C, Bottom) 6-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6–3 Printed-Circuit Board Layer 1 (Rev. C) 6-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6–4 Printed-Circuit Board Layer 2 (Rev. C) 6-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6–5 Printed-Circuit Board Layer 3 (Rev. C) 6-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6–6 Printed-Circuit Board Layer 4 (Rev. C) 6-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6–7 Printed-Circuit Board Layer 5 (Rev. C) 6-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6–8 Printed-Circuit Board Layer 6 (Rev. C) 6-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tables
2–1 EVM Connectors 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–2 EVM Connectors to Power Supplies 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–3 EVM Connectors to Outputs 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–4 EVM Connector to Motherboard 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–5 EVM Jumper Description and Position 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–6 EVM LED Description 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–1 Separate Operation Modes 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3–2 Cascaded Operation Modes 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1
Introduction
This chapter gives a general overview of the TLV320AIC10/11 evaluation
module (EVM) and briefly describes the four functional sections on the EVM
board.
Topic Page
1.1 Features 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 TLV320AIC10/11 Device Block Diagram 1-2. . . . . . . . . . . . . . . . . . . . . . . . .
1.3 EVM Block Diagram 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 1

Features
1-2
1.1 Features
TheTLV320AIC10/11evaluationmodule(EVM)isa daughterboardthatplugs
directlyinto the peripheralconnector of TI’sTMS320C5402DSK(DSPstarter
kit) board. The board is populated with two TLV320AIC10/11 chips and has
footprintsforsixmore.TheEVMprovidesaplatformforevaluatingthevarious
operating modes and applications of AIC10/11 devices.
TLV320AIC10/11 devices are analog interface circuits (AIC), also called mo-
dem CODECs. They have 16-bit resolution and up to 22 kilosamples per sec-
ond (KSPS) speed. The device is designed for use with TI’s TMS320C5402
digital signal processors (DSP), or any other DSP or microprocessor that fea-
turesthemultichannelbufferedserial port(McBSP)orsynchronizedserialpe-
ripheral interface (SPI).
For detailed specifications and applications of the TLV320AIC10/11, refer to
TI’s
General-Purpose3-Vto5.5-V16-bit,22-KSPSDSPCODECDataManual
(SLWS093) and General-Purpose Low-Voltage 1.1-V to 3.6-V I/O, 16-bit,
22-KSPS DSP CODEC Data Manua
l SLWS100).
For more information about TI’s TMS320C5402 DSK, visit TI’s web site at:
http://www.ti.com/sc/docs/tools/dsp/tmdx320005402.htm
1.2 TLV320AIC10/11 Device Block Diagram
The TLV320AIC10/11 device contains both analog-to-digital converter (ADC)
anddigital-to-analogconverter(DAC)datapaths.TheADCdatapathincludes
operational amplifiers for input signal conditioning, an input multiplexer, an
antialiasing filter, a programmable gain amplifier, a Sigma-Delta ADC, and a
decimationfilter.TheDACdatapathcomprisesaninterpolationfilter,aSigma-
Delta DAC, a low-pass reconstruction filter, a programmable gain amplifier,
and output transmit operational amplifiers. DSP interface circuitry, band-gap
voltage reference, and clock generator/control circuits are also present in the
AIC10/11 devices.
Figure 1–1 shows the block diagram of the TLV320AIC10/11 device, and
includes the signal pinouts for the AIC10/11. The signals along the left side of
theillustrationareanalogandinterfacetotheapplication.Signalsshownalong
the right side are digital and interface with the DSP and the other AIC10/11
devices and circuitry. There are four control registers (CR) in each AIC10/11
device. Each register requires configuration for proper operation.

TLV320AIC10/11 Device Block Diagram
1-3
Introduction
Figure 1–1.TLV320AIC10/11 Device Block Diagram
+
–
A1
Receiver Amplifiers
MUX
Ena/Disa Rx Amps CR1-Bit6)
Anti-
Aliasing
Filter PGA Sigma-
Delta
ADC
Ena/Disa Bypass (CR1-Bit5)
Input Gain (CR4-Bits4–7)
Sync Filter FIR
Filter
Decimation
Filter
Sigma-
Delta
ADC Sync
Filter FIR
Filter
Interpolation
Filter
Interface
Circuit
Ena/Disa Bypass (CR1-Bit2)
Ena Digital LoopBack (CR3-Bits7&6 = 10)
Low
Fass
Filter
PGA
Mux Selection (CR1-Bit4)
Output Gain (CR4-Bits0–3)
Ena Analog LoopBack (CR3-Bits7&6 = 01)
+
–
A3
+
–
A4
TransmitterAmps Ena/Disa Tx Amps (CR1-Bit1)
A2 Vref
Generator
Internal
Clock Circuit
Frequency Divider
(CR2-Bits0–4)
1 3 2
47
48
8 9 4
7 6 5
43
AURXPF
AURXCP
AURXM
INP
INM
OUTP
OUTM
DTXOP
DTXIM
DTXIP
DTXOM
VMID
23 26 25 24 16 17
21 22 19 20 27 10
11 13 12
14,2930153833, 40,
42, 46
4534
FLAG ALTIN DCSI FC DOUT
DIN FSD FS SCLK MCLK M/S M0 M1 RESET PWRDWN
AVDD2 AVDD1 AVSS FILT DVDD1 DVDD2 DVSS
TLV320AIC10/11

EVM Block Diagram
1-4
1.3 EVM Block Diagram
The TLV320AIC10/11 EVM system block diagram is illustrated in Figure 1–2.
TheEVMsystemnotonlyprovidesanevaluationtoolfortheAICdevice,italso
gives an indication of the features and functions available for the hardware
system configuration.
Figure 1–2.TLV320AIC10/11 EVM Block Diagram
Buffer and LED
Display Circuit
DAA Circuit
J1
Input
Offset/Condition
J7
Audio Output
Driver
J5
Flag
SCLK
FS
FSD
DIN
DOUT
MCLK
TLV320AIC10/11
U1
8.2 MHZ
CRYSTAL
Digital Signal
Configuration
and Controls
J12
Input
Offset/Condition
J8
J6
Flag
SCLK
FS
DIN
DOUT
MCLK
U2
MCLK
FSD
DB_DET
CLKOUT & RESET
RCLK, XCLK, FSR & FSX
J10
Terminal
FS
SCLK
DIN
DOUT
MCLK
U3
FSD
FS
SCLK
DIN
DOUT
MCLK
U8
FSD
Terminal
Input
Offset/Condition
Audio Output
Driver
J9
J2
J3
J4
DVDB
and
AVDB
Power Supply
Configuring
and
Conditioning
AVSS
DVSS
DVDD
DVDD1
AVDD
5VS
C542
DSK
1.8 V/dc
3.3∼5 V/dc
3.3∼5 V/dc
5 V/dc
From
Phone Line
Analog Input
to Speaker
From
Microphone
Analog Input
to Speaker
TLV320AIC10/11 EVM
Rx & Tx
As shown in Figure 1–2, there are four functional sections on the EVM board:
1) AIC10/11 devices and support circuits.The EVM is populated with two
AIC10/11 devices and has footprints for six more. The unpopulated
devices are illustrated with dashed lines. Also on the board are setup,
configuration, and reset circuits that interface with all AIC10/11 devices.