Texas Instruments
Digital Audio
Kevin Belnap
Product Marketing Manager
High Performance Analog
Texas Instruments
Market Focus for Home Audio Amplifiers
 HDTV
 DLP, Plasma, LCD
 Home Theater
 DVD Receiver
 Home Theater in a Box
 A/V Receiver
 5.1 Subwoofer Amps
 Mini-component Systems
and MP3 Docking Stations
 Wireless Speakers
TI Provides Complete A/V Solution for HDTV
RF
Tuner
Demod
DRAM
Memory Clock
Management
Power
Management
CVBS
NTSC/PAL
Audio
Memory
Video
Decoder
System
Clock
Generator
Optional
Video
Link
SVideo
TV Processor
SD
Comp
Audio
Processor
Audio
ADC
Optional
Microcontroller
Audio
Audio
DAC
Optional
Memory Stick
Timing
Optional
Buttons, LEDs, IR receiver
Audio Amp
TV Audio – Class D Roadmap
30W
Output Power
20W
Upgrade Path
Mono Class-D
TPA3001D1
Digital Input
Mono Class-D
TPA3200D1
>32”
Stereo Class-D,
DC Volume Control
TPA3004D2
Digital Power
Stage
TPA3300D2
10W
Stereo Class-D
TPA3101D2
Stereo Class-D
4-Step Gain
TPA3008D2
23”-32”
10W
20W
Stereo Class-D
TPA3100D2
Stereo Class-D
4-Step Gain
TPA3005D2
17”-23”
5W
Stereo Class-AB
DC Volume Control
TPA6030A4
Monitors
Past
2004
Stereo Class-D,
DC Volume Control
TPA2008D2
Digital
Stereo
Headphone
Cap-less
TPA4411
Analog
2005
2006
Clocks for all High-Performance
Audio and Video Systems
Rambus Clock Generators
CDCR83, CDCR61
 DRCG Rambus
Clock Generator
System Clocks
CDCVF25x
 1:5, 1:8, 1:9 PLL
distribution
 Up to 200MHz
 Single Ended
CDC5806
CDCD5804
 Rambus XDR Clock
Generator (XCG)
 400MHz - 800MHz
 Rambus V.81
Compliant
EMI Supression
CDCE906
 Advanced Memory Card
 Integrated SSC for EMI control
clock generator
 54MHz input
 3 PLLs drive 6 outputs –
74MHz, 16.9344 MHz, 64MHz,
32 MHz, 48MHz, 38.4MHz
 0PPM stability for Audio/Video
applications
 60 ps of jitter
TI Audio Pumps Up the Home Theater
• Matt will send to me
– Use ASG system overview
– Mention ADCs and PCM1850 specifically
Multi-channel
Broad Portfolio of High-Performance DACs
for Dynamic Range and SNR
High
Performance
PCM1602/08
 105dB Dynamic Range
PCM1680
 105dB Dynamic Range
PCM1606
 103dB Dynamic Range
Stereo Channel
Cost effective, Integrated Solution
PCM1730/38
PCM1780/81/82
 117dB Dynamic Range,
 106dB Dynamic Range
 132dB Dynamic
Range
DSD
PCM1791A/93
DSD1791
PCM1753/54/55
 106dB Dynamic Range
PCM1792/94
DSD1792
 113dB Dynamic Range
PCM1796/98
DSD1796
 123dB Dynamic
Range
PCM1770/71/72/73
 96dB Dynamic Range
Low
PCM1742K/28K
 106dB Dynamic Range
PCM1702/04
 112dB Dynamic Range
dB
High
TPA3100D2 and 3101D2
Features
Benefits
 Efficient Class-D operation
 Eliminates need for heat sink
 Wide 10V to 26V supply voltage
operation
 Eliminates need for DC-DC converter;
operates from 24V LCD backlight supply
 Four integrated gain settings
 Eliminates four external resistors
 Thermal and short circuit
protection
 Excellent reliability and
robust operation
 Fault reporting
 Allows processor to reset the device after
an over current event
3100D2
 20 Watts per channel
and 92% efficiency
3101D2
 10 Watts per channel
Tuner
Stereo
Class-D Amp
Audio
Processor
TPA3100D2
and 85% efficiency
 Price: 1Ku / $3.50
 RTM: Dec. 2005
 Packaging: 48pin QFN 7mmx7mm
Power
Supply
24 VDC
7x7 QFN,
SMT Package
TPA3300D2
First TI Power Stage with Feedback Architecture
Features
Benefits
 Efficient Class-D operation
 Eliminates need for heat sink
 Wide 10V to 26V supply
voltage operation
 Eliminates need for DC-DC converter; can
operate from most LCD backlight supplies
 Direct connection to PWM processor
 No digital or analog conversion
 Power Supply Noise Rejection: - 70dB
 Reduces cost and design constraints
of power supplies
 Thermal and short circuit protection
 Excellent reliability and robust operation
 Fault reporting
 Allows processor to reset the device after
an over current event
Digital
Tuner
I2S
 Price: 1Ku / $2.95
 RTM: Dec. 2005
 Packaging: 32 pin QFP 7mmx7mm
Audio
Processor
Control
Inputs
Class-D
PWM
Processor
OUTA_P
PWM_AP
Power
Stage
OUTA_M
PWM_AM
OUTB_P
PWM_BP
OUTB_M
PWM_BM
TAS5504
LC
Filter
TPA3300D2
VALID
SHUTDOWN
FAULT
ERROR
GND
Power
Supply
10 - 26VDC
LC
Filter
VDD
PurePath Digital™ for Compact Audio Systems
Two chips can do complete 6-channel system
System
Decoder
TI
Digital Audio
Processor
Digital
Amplifier
Digital from beginning to speaker!
48-bit processing eliminates noise!
TI Digital Amp Gives More Audio With Less Heat
Easier layout – audio remains digital
so no fine tuning in analog is required –
 TI Digital amp SNR up to 110dB
>90% efficiency reduces or eliminates
need for heat sink
PWM processor can do volume control/
equalization/bass management and more!
Digital Amplifier Power Stages
Released
In development
Product Proposals
TAS5261
Power & Integration
Pin Compatible
Outputs are BTL
unless noted.
1Ch 125W @ 8W
6Ch (5x30W+1x60W) @ 10%
3Ch 70W @ 6W 10%
TAS5186
44 HTSSOP/PSOP
2Ch 125W @ 4W 10%
36 PSOP
TAS5152
TAS5142
2Ch 100W @ 4W 10%
4Ch 40W @ 3W 10%
44HTSSOP/36PSOP
TAS511x
TAS512x
Up to 50W @6Ω 2 Ch
Up to 100W @ 4Ω 1 Ch
Existing Products
Please note that product
proposals are still open for
customer feedback and the
definition may change.
Future Products
DVD Receiver with TAS5086/5186
Valid/Reset
MCLK
Analog
Line
Input
R L
AM/FM
Tuner
S/PDIF
(Decode,
Tone,
& Bass
Mgmt.)
SCLK
48/64Fs
LRCLK
SData 1-3
PWM Conv.
RCA S/PDIF
Input(s)
MPEG
Decoder
CH Mux
SRAM
Bias
Out
TAS5086
Sub Filtering
Volume
64/128/192/
256/384/512 Fs
SDIN
DVD
Control
LC
TAS5186DDV
LC
LC
SData4
System
MCU
LT/RT
IIS Out
LC
LC
LC
Dolby
Downmix
AIC23B
Stereo
ADC
w/Mux
LC
AIC23B
Stereo
DAC
R
L
RS
LS
C
Sub
R L
Line Output
HP Amp Headphones
w/Vol Ctl.
Digital Amplifiers for Full Range
of Home Theater Systems
TAS5518 - 8 Channel
Equalization/volume/mixer/PWM
TAS5086 - 6 Channel
Bass/Volume Management/PWM
TAS5504 - 4 Channel
Equalization/volume/mixer/PWM
2.1/3.1
5.1
7.1
TI’s Broad Spectrum of Audio Amps & Processors
High-quality digital audio processing
 TAS5518 48 bit data path/76 bit accumulators
 110 dB performance
 Lossless bass management, compression
 Configurability for 5.1, 6.1 or 7.1 channel systems
 Treble, bass, loudness, parametric EQ
Extensive power stage product line
 15 to 125 watts per channel
From cost-focused to audiophile-grade
 Shipping today in $10,000 (USD) systems
 Shipping in $99 DVDRs
Mini-Component Systems/MP3 Docking Stations
PurePath Digital™ Perfect for Wireless Speakers
System
Decoder
Squeak
Wireless
Processor
Squeak
Wireless
Processor
TI
Digital Audio
Processor
Digital
Amplifier
Wireless digital from beginning to speaker!
Example of Complete Wireless Reference System
Receiver Card
Transmitter Card
BackUp Slides
PCM1780/81/82/1680
Stereo / Multi channel DAC
PCM1780/81/82: Stereo, PCM1680: 8 channels
Features











New Concept Stereo/Multi channel DAC
Improved clock jitter performance
High PSRR performance
Dynamic Range: 106dB Typ
THD+N: 0.002% Typ
Full-Scale Output: 3.9Vp-p Typ
Sampling Frequency: 32k - 192kHz
System clock: 128fs - 1152fs
Single 5V power supply operation
I2C/SPI Interface: PCM1680
Pin to Pin Compatible Solution
 PCM1780/81/82:16 pin SSOP 150mil
 PCM1680:28 pin SSOP 150mil
PCM1680
PCM178x
16 SSOP
28 SSOP
PCM1807
Cost Effective 24-bit 97dB Stereo Audio ADC
Features
•
•
•
•
•
•
•
Dynamic Range: 97dB
THD+N: -87dB
No external RC filter required
Stop band Attenuation: -60dB
Single end voltage input : 3.0Vp-p
Sampling Frequency: 16k - 96kHz
Dual power supply operation:
• +5V for Analog, 3.3V for Digital
•
•
Master/Slave mode selectable
Default / power-up conditions
• PCM1807 Slave, I2S
•
14 pin TSSOP Lead free Package
PCM1806/07
1
VREF
VINR
14
2
AGND
VINL
13
3
VCC
MS
12
4
VDD
MC
11
5
DGND
MD
10
6
SCKI
DOUT
9
7
LRCK
BCK
8
8
BYPAS
DGND
13
9
TEST
DOUT
12
CDCE906/706
3 x PLL Clock Generator
Divider
PLL1
80-300 MHz
LVCMOS (2.3V to 3.6V)
Single-Ended or Differential
/1,/2,/3 ... /127
Divider
Crystal or
LVCMOS or
Differential
1-200 MHz
/1,/2,/3 ... /127
PLL2
non-SSC
Divider
/1,/2,/3 ... /127
80-300 MHz
PLL2
w/ SSC
Divider
/1,/2,/3 ... /127
80-167 MHz
Divider
/1,/2,/3 ... /127
PLL3
80-300MHz
SMBus
Interface
Divider
/1,/2,/3 ... /127
internal
EEPROM
programmable
Slew Rate
Application: CDCE906 generating digital video /
audio clocks with 0ppm offset
CDCE906
64 MHz
CPU Clock
384fs
768fs
27 MHZ
Crystal
256fs
27 MHz
Karaoke
DSP
MPEG/AC-3
Audio Dec
DVD-DSP
Front
Surround
Center
Subwoofer
PCM1716
Typical applications for the CDCE906 are digital HDTV systems, gaming consoles,
DVD players, DVD add-on cards for multimedia PCs, and step-top boxes.
fin =27MHz
Audio Rate
KHz
fs x
256
divider
N
P
error
ppm
2048
392
768
2048
1568
2048
2048
36
25
27
18
10
12
6
0
0
0
0
0
0
0
divider
N
1
8
P
4
error
ppm
0
M
MHz
16
22.05
24
32
44.1
48
96
Video Rate
MHz
divider
N
P
error
ppm
125 768
125 588
125 768
375 2048
125 784
125 768
375 2048
27
15
18
12
10
9
4
0
0
0
0
0
0
0
divider
N
-
P
1
error
ppm
0
M
MHz
4.096
5.6448
6.144
8.192
11.2896
12.288
24.576
375
75
125
375
375
375
375
2
M
MHz
27
fs x
384
54
fs x
512
M
divider
N
P
error
ppm
2048
1568
2048
2048
1568
2048
2048
18
10
12
9
5
6
3
0
0
0
0
0
0
0
divider
N
-
P
2
error
ppm
0
MHz
6.144
8.4672
9.216
12.288
16.9344
18.432
36.864
1
MHz
27
M
-
8.192
11.2896
12.288
16.384
22.5792
24.576
49.152
13.5
M
divider
N
P
error
ppm
2048
784
768
2048
784
2048
2048
12
10
9
6
5
4
2
0
0
0
0
0
0
0
MHz
375
375
375
375
375
375
375
0.5
MHz
fs x
768
M
-
12.288
16.9344
18.432
24.576
33.8688
36.864
73.728
375
125
125
375
125
375
375
CDCEx06 SSC: Center & Down Spread
Down Spread 3%
9th Harmonic, fm = 60KHz
11.3dB
Center Spread ± 0.4%
9th Harmonic, fm = 60KHz
7dB
TI Digital Amp Advantage
TI Digital Amp Advantage
TAS5086 5.1 Channel PWM Processor
• Six channel PWM Processor
•
•
•
•
•
– Eight PCM inputs
– Six PWM outputs
– Stereo IIS lineout (5.1 channel downmix)
Bass management (config 1)
Master/independent volume control
Symmetrical PWM
100 dB dynamic range
PWM processor for Class AB price competitive
solution
• AM avoidance algorithm
• Automatic clock detection
• Input/output mux
TAS5186 5.1 Channel Power Stage
•
200W, 5.1 channels in single package
•
Two-stage over current detector
–
–
30Wx5/6 ohms
60Wx1/3 ohms
–
First Stage
–
•
•
•
•
•
OC detector reset after each PWM cycle
Effectively acts as a current limiter
Prevents premature shutdowns due to high level music/source transients with extreme
speaker impedance drops
Low level click
Allows wider tolerance for speaker
•
OC shutdown occurs if first stage occurs for more than 1.5 ms
Second stage
•
•
•
•
Pre-charge control to reduce power-on/power-off/mute pops/clicks
Over-temperature, under-voltage protection
DDV, low profile package for cost-optimized applications
Used in conjunction with TAS5086 for class AB price competitive chipset
•
•
Samples now
RTM Feb ‘05