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Texas Instruments Digital Audio

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TV Audio Class D Roadmap. Past. 2005. Output Power. 2004. 2006. Analog. Digital ... Direct connection to PWM processor. Power Supply Noise Rejection: - 70dB ... – PowerPoint PPT presentation

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Title: Texas Instruments Digital Audio


1
Texas InstrumentsDigital Audio
  • Kevin Belnap
  • Product Marketing Manager
  • High Performance Analog
  • Texas Instruments

2
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

3
TI Provides Complete A/V Solution for HDTV
TunerDemod
RF
Power Management
Memory ClockManagement
DRAM
CVBS
NTSC/PAL Video Decoder
System ClockGenerator
Memory
Audio
Optional
TV Processor
VideoLink
SVideo
AudioProcessor
SDComp
Audio Amp
Audio DAC
Audio ADC
Optional
Optional
Microcontroller
Audio
Memory StickTiming
Optional
Buttons, LEDs, IR receiver
4
TV Audio Class D Roadmap
30W
Upgrade Path
20W Stereo Class-D TPA3100D2
Digital Input Mono Class-D TPA3200D1
Digital Power Stage TPA3300D2
Mono Class-D TPA3001D1
20W
32
Stereo Class-D, DC Volume Control TPA3004D2
10W Stereo Class-D TPA3101D2
23-32
10W
Output Power
Stereo Class-D 4-Step Gain TPA3005D2
17-23
5W
Stereo Class-D, DC Volume Control TPA2008D2
Stereo Class-AB DC Volume Control TPA6030A4
Digital
Stereo Headphone Cap-less TPA4411
Monitors
Analog
Past
2005
2004
2006
5
Clocks for all High-Performance Audio and Video
Systems
Rambus Clock Generators
  • Rambus XDR Clock Generator (XCG)
  • 400MHz - 800MHz
  • Rambus V.81 Compliant
  • DRCG Rambus Clock Generator

EMI Supression
System Clocks
  • Integrated SSC for EMI control
  • 0PPM stability for Audio/Video applications
  • 60 ps of jitter
  • Advanced Memory Card clock generator
  • 54MHz input
  • 3 PLLs drive 6 outputs 74MHz, 16.9344 MHz,
    64MHz, 32 MHz, 48MHz, 38.4MHz
  • 15, 18, 19 PLL distribution
  • Up to 200MHz
  • Single Ended

6
TI Audio Pumps Up the Home Theater
  • Matt will send to me
  • Use ASG system overview
  • Mention ADCs and PCM1850 specifically

7
Broad Portfolio of High-Performance DACs for
Dynamic Range and SNR
High Performance
PCM1602/08
  • 105dB Dynamic Range

Multi-channel
PCM1680
  • 105dB Dynamic Range

PCM1606
  • 103dB Dynamic Range

Cost effective, Integrated Solution
PCM1792/94 DSD1792
PCM1730/38
PCM1780/81/82
  • 132dB Dynamic Range
  • 117dB Dynamic Range, DSD

Stereo Channel
  • 106dB Dynamic Range

PCM1796/98 DSD1796
PCM1753/54/55
PCM1791A/93 DSD1791
  • 106dB Dynamic Range
  • 123dB Dynamic Range
  • 113dB Dynamic Range

PCM1742K/28K
PCM1702/04
  • 106dB Dynamic Range
  • 112dB Dynamic Range
  • 96dB Dynamic Range

High
Low
dB
8
TPA3100D2 and 3101D2
Features
Benefits
  • Efficient Class-D operation
  • Wide 10V to 26V supply voltage operation
  • Four integrated gain settings
  • Thermal and short circuit protection
  • Fault reporting
  • Eliminates need for heat sink
  • Eliminates need for DC-DC converter operates
    from 24V LCD backlight supply
  • Eliminates four external resistors
  • Excellent reliability and robust operation
  • Allows processor to reset the device after an
    over current event

Tuner
3100D2
3101D2
Stereo Class-D Amp
  • 10 Watts per channel and 85 efficiency
  • 20 Watts per channel and 92 efficiency
  • Price 1Ku / 3.50
  • RTM Dec. 2005
  • Packaging 48pin QFN 7mmx7mm

7x7 QFN, SMT Package
9
TPA3300D2First TI Power Stage with Feedback
Architecture
Benefits
Features
  • Efficient Class-D operation
  • Wide 10V to 26V supply voltage operation
  • Direct connection to PWM processor
  • Power Supply Noise Rejection - 70dB
  • Thermal and short circuit protection
  • Fault reporting
  • Eliminates need for heat sink
  • Eliminates need for DC-DC converter can operate
    from most LCD backlight supplies
  • No digital or analog conversion
  • Reduces cost and design constraints of power
    supplies
  • Excellent reliability and robust operation
  • Allows processor to reset the device after an
    over current event
  • Price 1Ku / 2.95
  • RTM Dec. 2005
  • Packaging 32 pin QFP 7mmx7mm

10
PurePath Digital for Compact Audio Systems
Two chips can do complete 6-channel system
System Decoder
TI Digital Audio Processor
Digital Amplifier
11
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!
12
Digital Amplifier Power Stages
Pin Compatible
  • 1Ch 125W _at_ 8W

Outputs are BTL unless noted.
  • 6Ch (5x30W1x60W) _at_ 10
  • 3Ch 70W _at_ 6W 10
  • 44 HTSSOP/PSOP
  • 2Ch 125W _at_ 4W 10
  • 36 PSOP

Power Integration
  • 2Ch 100W _at_ 4W 10
  • 4Ch 40W _at_ 3W 10
  • 44HTSSOP/36PSOP
  • Up to 50W _at_6? 2 Ch
  • Up to 100W _at_ 4? 1 Ch

Please note that product proposals are still open
for customer feedback and the definition may
change.
Future Products
Existing Products
13
DVD Receiver with TAS5086/5186
Valid/Reset
DVD Control
Bias Out
LC
MCLK 64/128/192/ 256/384/512 Fs
TAS5086
TAS5186DDV
R L RS LS C Sub
LC
MPEG Decoder (Decode, Tone, Bass Mgmt.)
SRAM
SCLK 48/64Fs
PWM Conv.
SDIN
Volume
CH Mux
Sub Filtering
LC
LRCLK
LC
RCA S/PDIF Input(s)
SData 1-3
S/PDIF
LC
LC
SData4
LC
Dolby Downmix
R L
Analog Line Input
R L
LT/RT IIS Out
Line Output
System MCU
AM/FM Tuner
Headphones
HP Amp w/Vol Ctl.
14
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
5.1
7.1
2.1/3.1
15
TIs 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

16
Mini-Component Systems/MP3 Docking Stations
17
PurePath Digital Perfect for Wireless Speakers
Squeak Wireless Processor
Squeak Wireless Processor
System Decoder
TI Digital Audio Processor
Digital Amplifier
Wireless digital from beginning to speaker!
18
Example of Complete Wireless Reference System
Receiver Card
Transmitter Card
19
BackUp Slides
20
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
  • THDN 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
  • PCM1780/81/8216 pin SSOP 150mil
  • PCM168028 pin SSOP 150mil

21
PCM1807
Cost Effective 24-bit 97dB Stereo Audio ADC
  • Features
  • Dynamic Range 97dB
  • THDN -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
22
CDCE906/7063 x PLL Clock Generator
23
Application CDCE906 generating digital video /
audio clocks with 0ppm offset
Typical applications for the CDCE906 are digital
HDTV systems, gaming consoles, DVD players, DVD
add-on cards for multimedia PCs, and step-top
boxes.
24
CDCEx06 SSC Center Down Spread
25
TI Digital Amp Advantage
26
TI Digital Amp Advantage
27
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

28
TAS5186 5.1 Channel Power Stage
  • 200W, 5.1 channels in single package
  • 30Wx5/6 ohms
  • 60Wx1/3 ohms
  • Two-stage over current detector
  • 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
  • Second stage
  • OC shutdown occurs if first stage occurs for more
    than 1.5 ms
  • Pre-charge control to reduce power-on/power-off/mu
    te 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
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