AIC111EVM
User’s Guide
June 2003
Data Acquisition Products
SLAU108
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Copyright 2003, Texas Instruments Incorporated
EVM IMPORTANT NOTICE
Texas Instruments (TI) provides the enclosed product(s) under the following conditions:
This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION
PURPOSES ONLY and is not considered by TI to be fit for commercial use. As such, the goods being provided
may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective
considerations, including product safety measures typically found in the end product incorporating the goods.
As a prototype, this product does not fall within the scope of the European Union directive on electromagnetic
compatibility and therefore may not meet the technical requirements of the directive.
Should this evaluation kit not meet the specifications indicated in the EVM User’s Guide, the kit may be returned
within 30 days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE
WARRANTY MADE BY SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED,
IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY
PARTICULAR PURPOSE.
The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user
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discharge.
EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY SHALL BE LIABLE
TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.
TI currently deals with a variety of customers for products, and therefore our arrangement with the user is not
exclusive.
TI assumes no liability for applications assistance, customer product design, software performance, or
infringement of patents or services described herein.
Please read the EVM User’s Guide and, specifically, the EVM Warnings and Restrictions notice in the EVM
User’s Guide prior to handling the product. This notice contains important safety information about temperatures
and voltages. For further safety concerns, please contact the TI application engineer.
Persons handling the product must have electronics training and observe good laboratory practice standards.
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Post Office Box 655303
Dallas, Texas 75265
Copyright 2003, Texas Instruments Incorporated
EVM WARNINGS AND RESTRICTIONS
It is important to operate this EVM with an input voltage of 3.3 V and the output voltage range
of 0.9 V to 2.5 V, or an input voltage of 5 V and the output voltage range of 0.9 V to 3.3 V.
Exceeding the specified input range may cause unexpected operation and/or irreversible
damage to the EVM. If there are questions concerning the input range, please contact a TI
field representative prior to connecting the input power.
Applying loads outside of the specified output range may result in unintended operation and/or
possible permanent damage to the EVM. Please consult the EVM User’s Guide prior to
connecting any load to the EVM output. If there is uncertainty as to the load specification,
please contact a TI field representative.
During normal operation, some circuit components may have case temperatures greater than
55°C. The EVM is designed to operate properly with certain components above 60°C as long
as the input and output ranges are maintained. These components include but are not limited
to linear regulators, switching transistors, pass transistors, and current sense resistors. These
types of devices can be identified using the EVM schematic located in the EVM User’s Guide.
When placing measurement probes near these devices during operation, please be aware
that these devices may be very warm to the touch.
Mailing Address:
Texas Instruments
Post Office Box 655303
Dallas, Texas 75265
Copyright 2003, Texas Instruments Incorporated
Related Documentation From Texas Instruments
Preface
Read This First
About This Manual
This user’s guide describes the operation and use of the AIC111 codec. A
complete circuit description as well as a schematic diagram and bill of materials are also included.
How to Use This Manual
This document contains the following chapters:
- Chapter 1—Introduction
- Chapter 2—Digital Interface
- Chapter 3—Analog Interface
- Chapter 4—AIC111 Bill of Materials and Schematic
Related Documentation From Texas Instruments
To obtain a copy of any of the following TI documents, call the Texas
Instruments Literature Response Center at (800) 477–8924 or the Product
Information Center (PIC) at (972) 644–5580. When ordering, please 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
AIC111
SLAS382
SN74AUC1G125
SCES382F
iii
Trademarks
FCC Warning
This equipment is intended for use in a laboratory test environment only. It generates, 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 interference. Operation of this equipment in other environments may cause interference with radio communications, in which case
the user at his own expense will be required to take whatever measures may
be required to correct this interference.
Trademarks
The TI Logo is a trademark of Texas Instruments.
iv
Contents
Contents
1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
2
Digital Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.1
Codec-to-Platform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.2
Jumper Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
3
Analog Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.1
Input Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.2
Output Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
4
Bill of Materials and Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.1
Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4.2
Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
v
Contents
(This page has been left blank intentionally.)
vi
Chapter 1
Introduction
This user guide provides support for the AIC111 device.
The AIC111 features a ∆Σ ADC & DAC, a programmable time-constant
PGA/compressor interface, and a glueless interface to many DSPs.
The device featured on the EVM is a 5x5 QFN (quad flatpack no leads)
1-1
(This page has been left blank intentionally.)
1-2
Chapter 2
Digital Interface
The digital signals required to operate this codec originate from the 40-pin connector – J1. There are two methods to drive the digital interface:
- Create a custom interface 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
2.1
Jumper Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Digital Interface
2-1
Codec-to-Platform
2.1 Codec-to-Platform
The AIC111 mates with the development platform via a 40-pin Samtec
connector. The mating connector (Samtec part number, TSM-120-01-T-DV-P)
is used on the development platform to provide the electrical connections
necessary. Consult Samtec at www.samtec.com or 1-800-SAMTEC-9 for
more information.
The pinout for the 40-pin connector is given below.
2-2
Pin Number
Signal
Description
J1.1
Not used
J1.2
DGND
Digital ground
J1.3
SCLK
Serial data clock
J1.4
DGND
Digital ground
J1.5
DIN
J1.6
DGND
Digital ground
J1.7
DOUT
Data out
Data in
J1.8
LBM
J1.9
Not used
Low battery monitor
J1.10
J1.11
J1.12
J1.13
J1.14
J1.15
J1.16
J1.17
J1.18
J1.19
J1.20
J1.21
J1.22
J1.23
J1.24
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
J1.25
3.3V_D
J1.26
Reserved
J1.27
3.3V_D
Digital 3.3 V
J1.28
DGND
Digital ground
J1.29
Not used
Frame sync
Digital 3.3 V
Reserved for future use
J1.30
DGND
J1.31
Not used
Digital ground
J1.32
DGND
J1.33
Not used
J1.34
AGND
J1.35
Not used
J1.36
AGND
Analog ground
J1.37
3.3V_A
Analog 3.3 V
J1.38
AGND
Analog ground
Digital ground
Analog ground
Jumper Options
Pin Number
Signal
Description
J1.39
3.3V_A
Analog 3.3 V
J1.40
AGND
Analog Ground
The development platform provides a convenient mechanical and electrical
interface between the serial port on the DSK and the EVM.
Refer to Ti literature number SLAU090 for details regarding the development
platform.
Further descriptions regarding the operation of this EVM assumes that the
Development Platform is used. The figure below shows the method necessary
to connect the DSK to the development platform, and the development
platform to the codec.
Development
Platform
AIC111 EVM
DSK
2.2 Jumper Options
There are various jumpers on the board that can be configured in a variety of
ways, depending upon the user’s requirements. Their functions are briefly
presented below:
Jumper
Function
W1
Reserved, never install a jumper at this location
Never install
W2
Supplies bias voltage for AVIN_P, if required
Not installed
W3
Grounds AVIN_M, for single-ended input, if required.
Not installed
W4
Reserved, never install a jumper at this location
Never install
W5
Completes the connection for the codec’s analog and core digital
supplies.
– remove this jumper and place a current meter between TP1 and TP2 to
check current drawn.
Installed
W6
Completes the connection for the codec’s digital I/O supply.
– remove this jumper and place a current meter between TP3 and TP4 to
check current drawn.
Installed
W7
Completes the connection for the codec’s digital H-bridge supply
– remove this jumper and place a current meter between TP5 and TP6 to
check current drawn.
Installed
W8
When inserted, the device is permanently reset.
Not installed
W9
Reserved, never install a jumper at this location
W10
Selects the digital interface
Never install
W11
Input for add-on conditioning board
Never install
P1.32–P1.34
Connect AGND and DGND together
Installed
Install between
pins 2 and 3
Digital Interface
2-3
(This page has been left blank intentionally.)
2-4
Chapter 3
Analog Interface
Topic
Page
3.1
Input Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.2
Output Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Analog Interface
3-1
Input Connections
3.1 Input Connections
Analog input is via a screw terminal – J2. The input can be single ended or
differential.
Bias current and voltage for an external microphone is provided via a screw
terminal – J3.
3.2 Output Connections
The output from the AIC111 is from an H-bridge driver. These output topologies
generally require a filter to recover the analog output signal. The output signal
is available at J4.
The prototype area on the EVM can be used to build a simple filter, or
alternatively, it is possible to build a small conditioning board which fits on top
of the prototype area. Check with the factory for availability of filter boards.
Convenient points for picking-up the H-bridge ground are located around the
prototype area and are indicated on the silkscreen by circles around the plated
through holes.
DVSS for H-Bridge
3-2
DVSS for H-Bridge
Chapter 4
Bill of Materials and Schematic
The bill of materials and schematic for the AIC111EVM are provided in this
chapter.
Topic
Page
4.1
Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4.2
Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Bill of Materials and Schematic
4-1
Bill of Materials
4.1 Bill of Materials
The following table contains a complete Bill of Materials for the AIC111EVM.
The schematic diagram is also provided for reference. Contact the Product
Information Center or e-mail dataconvapps@list.ti.com for questions
regarding this EVM.
Used
Value
Ref Des
Description
Vendor
Part Number
6
0R
R1 R8 R9
R10 R11
R12
Resistor 0 Ω 1/8W 5% 1206
SMD
Panasonic
ERJ-8GEY0R00V
1
10K
R2
Resistor 10 kΩ 1/8W 5%
1206 SMD
Panasonic
ERJ-8GEYJ103V
2
61.9K
R6 R7
Resistor 61.9 kΩ 1/8W 1%
1206 SMD
Panasonic
ERJ-8ENF6192V
1
130K
R5
Resistor 130 kΩ 1/4W 5%
1206 SMD
Panasonic
ERJ-8GEYJ134V
2
169K
R3 R4
Resistor 169 kΩ 1/8W 1%
1206 SMD
Panasonic
ERJ-8ENF1693V
3
100K
RV1 RV2
RV3
TRIMPOT 100 kΩ 4MM
TOP ADJ SMD
Bourns
3214W-1-104E
3
0.047 µF
C23 C25
C27
Capacitor 47000 pF 50 V
ceramic X7R 1206
Kemet
C1206C473K5RACTU
13
0.1 µF
C6 C7 C8
C9 C10 C11
C12 C13
C14 C15
C16 C18
C20
Capacitor 0.1 µF 25 V
ceramic X7R 0805
Panasonic
ECJ-2YB1H104K
5
1 µF
C1 C2 C3
C4 C5
Capaciator 1 µF 10 V
Ceramic X5R 0805
Panasonic
ECJ-2YB1A105K
3
4.7 µF
C22 C24 C26
Solid tantalum capacitor,
ESR = 3.5R
Kemet
T494A475(1)006AS
3
NI
C17 C19 C21
*
*
*
1
SM_FB_2773044447
FB1
Fair-Rite SM beads
#24--44447
Fair-Rite
2744044447
8
SN74AUC1G125
U1 U2 U3
U5 U6 U7
U8 U9
Single bus buffer with
3-state output
Texas
Instruments
SN74AUC1G125DBVR
3
TPS77001
U10 U11
U12
Ultralow power 50-mA LDO
regulator
Texas
Instruments
TPS77001DBVT
1
AIC111
U4
Codec
Texas
Instruments
AIC111
PWB
Texas
Instruments
6448740
1
8
2POS_JUMPER
W1 W2 W3
W4 W5 W6
W7 W8
2-position jumper
Samtec
TSW-102-07-L-S
3
3POS_JUMPER
W9 W10 W11
3-position jumper
Samtec
TSW-103-07-L-S
1
40-Pin plug
P1
40-PIN SMT PLUG
Samtec
TSM-120-01-T-DV-P
1
40-Pin socket
J1
40-Pin SMT socket
Samtec
SSW-120-22-F-D-VS-K
3
Screw terminal 2X1
J2 J3 J4
2-pole screw terminal
3,5 mm pitch black
On Shore
Technology
ED-555-2-BK
4-2
Bill of Materials
Used
Value
Ref Des
Description
Vendor
Part Number
1
SW-PB
S1
Switch LT TOUCH 6X3.5
240GF SMD
Panasonic
EVQ-PJU04K
12
TP_0.025
AVss
B_MCLK
DVss_Hbr
Dvss_Buff
MCLKIN TP1
TP2 TP3
TP4 TP5
TP6 Vpp
Test Point - single 0.025”
pin
Keystone
Electronics
5000
2
TP_TURRENT
AGND DGND
Turret terminal test point
Cambion
180-7337-02-05
5
Shunt
Samtec
SNT-100-BK-T
2
1.000/4-40 nylon hex
thread SP
Keystone
Electronics
1902E
2
4-40 X 1/4 machine screw
PH SS
Building
Fasteners
PMSSS 440 0025 PH
Bill of Materials and Schematic
4-3
Schematic
4.2 Schematic
The schematics are shown on the following pages.
4-4
1
2
3
4
5
6
Revision History
REV
ECN Number
Approved
D
D
CODEC
Power & Interface
C
C
B
B
ti
A
A
12500 TI Boulevard. Dallas, Texas 75243
Title:
AIC111 Top Level diagram
Engineer:
Joe Purvis
Drawn By:
FILE:
1
2
3
4
5
DOCUMENTCONTROL #
Joe Purvis
DATE:
AIC111 RevA_Schematic Page 1
13-May-2003
REV:
6448741
SIZE:
6
SHEET:
A
1 OF: 3
1
2
3
4
5
6
Revision History
REV
ECN Number
Approved
U1A
SN74AUC1G125
4
Y
SYNC_RESET*
2
A
OE*
1
D
D
U2A
SN74AUC1G125
DVss_Buff
LBM
2
A
1
Vpp
W1
W9
DV_REG
2
A
1
AVdd
25
26
27
28
29
30
31
32
FS
FS
SCLK
Vpp
LBM
RESET*
AVdd
VRFILT
AVss_REF
2
A
U5A
SN74AUC1G125
U4
OE*
4
Y
A
2
1
DIN
Y
B_FS
4
C
OE*
DVss_Buff
AVss_1
SDIN
24
OE*
1
B_DIN
U7A
SN74AUC1G125
DVss_Buff
2
B_SCLK
4
DVss_Buff
AVss
AVss_2
AVss
Y
U6A
SN74AUC1G125
1uF
1
OE*
DVss_Buff
DVss_Buff
C
B_LBM
4
U3A
SN74AUC1G125
SCLK
C1
Y
SDOUT
DOUT
23
2
A
Y
B_DOUT
4
DVss_Buff
J2
C2
3
2
AVIN_P
BUF_DVss
1
22
DVss_Buff
1uF
C5
1
DVdd_Buff
4
W3
AVIN_M
BUF_DVdd
MCLKIN
21
1uF
C3
W2
OE*
VMID_FILT
DVdd
20
10K
DVss_Buff
W4
1uF
R2
U9A
SN74AUC1G125
DVdd_Core
5
4
AVss
Y
A
2
AVss
B
B
6
J3
2
MIC_BIAS
DVss
19
OE*
1
U8A
SN74AUC1G125
C4
DVss_Buff
7
1
VREF
MCLK
18
MCLK
2
A
Y
1uF
AVss
OE*
DV_REG
8
HB_Vss_M
Vout_M
Vout_P
Vss_OSC
Vdd_OSC
SUB_Vss
0.1uF
HB_Vdd
IMODE
HB_Vss_P
MIC_VSUP
C6
17
4
B_MCLK
1
R1
DVss_Buff
0R
W10
AVdd
16
15
14
13
12
11
9
10
AIC111
AVss
DVss_Buff
DVdd_Hbr
W11
AVss
AVss
DVss_Hbr
DVss_Hbr
R11
0R
A
ti
R12
0R
A
12500 TI Boulevard. Dallas, Texas 75243
1
2
DVss_Hbr
Title:
AIC111 CODEC
J4
Engineer:
Joe Purvis
Drawn By:
FILE:
1
2
3
4
5
DOCUMENTCONTROL #
Joe Purvis
DATE:
AIC111 RevA_Schematic Page 2
13-May-2003
6448741
SIZE:
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SHEET:
REV:
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2 OF:
3
1
2
3
4
5
6
Revision History
REV
DVdd_Core
AVdd
TP1
TP2
U10
ECN Number
Approved
AV_in
W5
FB1
5
OUT
IN
1
DV_in
SM_FB_2773044447
GND
D
+
C16
4.7uF
0.1uF
2
RV1
100K
C22
4
NC/FB
EN
C17
C23
NI
0.047uF
R5
SYNC_RESET*
130K
D
R4
169K
3
S1
W8
TPS77001
C7
AGND
0.1uF
R3
169K
J1
AVss
B_SCLK
DVdd_Buff
TP3
TP4
DV_REG
DV_in
U11
W6
5
OUT
IN
DIN
1
B_DOUT
B_FS
GND
+
C18
4.7uF
4
NC/FB
EN
NI
3
TPS77001
DGND
R6
61.9K
DV_in
DVss_Buff
DVdd_Hbr
TP6
U12
W7
5
OUT
+
IN
0.1uF
B
1
AV_in
C21
2
4
4.7uF
NC/FB
EN
C27
0.047uF
NI
RV3
100K
C26
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
DGND
DGND
B_SCLK
DGND
DIN
B_LBM
B_DOUT
B_FS
SYNC_RESET*
DV_in
DV_in
GND
C20
2
0.047uF
SYNC_RESET*
TP5
1
C25
C19
2
RV2
100K
C24
0.1uF
C
P1
DGND
3
AV_in
DGND
40-PIN SOCKET
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
DGND
DGND
DGND
B_LBM
C
DGND
DGND
AGND
B
40-PIN PLUG
AGND
AGND
TPS77001
DGND
R7
61.9K
DVss_Hbr
U6B
DV_REG
SN74AUC1G125
5
Vcc
3
GND
C8
0.1uF
DV_REG
U7B
SN74AUC1G125
5
Vcc
3
GND
C10
0.1uF
DV_REG
U8B
SN74AUC1G125
5
Vcc
3
GND
DV_REG
U9B
SN74AUC1G125
5
Vcc
3
C12
0.1uF
GND
C14
0.1uF
Dvss_Buff
R9
DVss_Buff
DVss_Buff
DVss_Buff
0R
DVss_Buff
DVss_Buff
AVss
U1B
U2B
DV_REG
SN74AUC1G125
5
Vcc
DV_REG
SN74AUC1G125
5
Vcc
A
3
GND
C9
0.1uF
3
GND
C11
0.1uF
U3B
DV_REG
SN74AUC1G125
5
Vcc
3
GND
U5B
DV_REG
SN74AUC1G125
5
Vcc
3
C13
0.1uF
GND
AGND
DVss_Hbr
R8
AGND
DVss_Buff
DVss_Buff
R10
DGND
0R
0R
C15
0.1uF
Title:
AGND
AIC111 DSP Interface & Power
DGND
Engineer:
2
DVss_Buff
3
Joe Purvis
Drawn By:
FILE:
1
A
12500 TI Boulevard. Dallas, Texas 75243
DVss_Hbr
AVss
DVss_Buff
ti
DGND
4
5
DOCUMENTCONTROL #
Joe Purvis
DATE:
AIC111 RevA_Schematic Page 3
13-May-2003
6448741
SIZE:
6
SHEET:
3
REV:
A
OF:
3
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