Home Theater Products
DVD Receivers
6-Channel Digital Audio PWM Processor
TAS5086
Get samples, datasheets and app reports at:
15
6-Channel, 5 x 30-W + 1 x 60-W Power Stage
TAS5186A
Get samples, datasheets and app reports at:
TAS5086 is a 6-channel digital pulse width modulator
(PWM) that provides both advanced performance and a
high level of system integration. TAS5086 is designed
to interface seamlessly with most audio digital signal processors and
MPEG decoders accepting a wide range of input data and clock formats.
Key Features
• 6-channel PWM
• > 100-dB dynamic range
• Record-line output with down-mixing
• Headphone output
• Bass management
• +48 to –100-dB soft volume control
• Input and output muxes
• < 0.1% THD+N (typ with TAS5186A)
• 32- to 192-kHz sampling rates supported
• 16-, 20- or 24-bit input format
• Low EMI design passes regulatory requirements
• Click and pop free
• Intelligent AM interference solution
• No external crystal required
Applications
• DVD receivers
RESET
PDIN
MUTE
/Backend
Error
The TAS5186A provides an industry leading complete
5.1 channel power solution with more than 200 W of
total power in a single surface mount package. It is
designed to drive five 6-Ω satellite speakers with a rated output
power of 30 W per channel @ 10% distortion and one 3-Ω subwoofer
speaker with 60 W of power. This highly integrated and compact
solution is made possible by TI’s PurePath Digital™ technology.
Key Features
• Six-channel power stage with 210 W of total output power
@ 10% THD
•
5 x 30 W @ 10%THD, single-ended 6-Ω load (satellites)
•
1 x 60 W @ 10%THD, single-ended 3-Ω load (subwoofer)
• 100 dB SNR (A-weighted)
• < 0.1% THD+N @ 1 W
• < 0.5% THD+N @ 0 dBFS
• Power stage efficiency > 92% into recommended loads (SE)
• Integrated self-protection circuits: under voltage, over temperature,
and short circuit
• Over current protection is programmable and has limit before latch
function
• Quiet Power on Reset for protected power up without power supply
sequencing
• Integrated active bias circuit to pre-charge split-cap (or DC-blocking)
capacitors
• Standalone protection recovery
• EMI compliant when used with recommended system design
• Packaging: 44-pin HTSSOP and 44-pin SSOP
Applications
• DVD receivers
SDA
SCL
PLL FLTM
PLL_FLTP
SCLK
LRCLK
MCLK
SDIN1
SDIN2
SDIN3
SDIN4
SDOUT1
(IIS Line Out)
Clock, PLL, IIC
Interface
Reset, Power-
Down, Status
Power Regulation
Power Regulation
PWM Conv.
Master
Volume
with
Auto
Mute
PWM Conv.
PWM Conv.
PWM Conv.
PWM Conv.
PWM Conv.
VALID2
VALID1
PWM1
PWM2
PWM3
Ch Vol
8-Ch
Serial
Audio
Input and
Mapping
Bass
Management
and
DC
Blocking
Ch Vol
Ch Vol
Ch Vol
Ch Vol
Ch Vol
Gate Drive A
PWM4
PWM5
PWM6
H-Bridge A
H-Bridge B
H-Bridge C
H-Bridge D
H-Bridge E
H-Bridge F
Soft
Start
Bias
Gate Drive B
PWM
Receivers
Gate Drive C
Gate Drive D
Gate Drive E
Gate Drive F
Over-Temp
Protection
Quiet Power-On
Reset Control
Supplies &
Reference
Timing
Control
Dolby
Downmix
3.3 V I/O
5.0 V Tolerant
TAS5086 block diagram.
Over-Current
Limit/Latch
TAS5186A block diagram.
Texas Instruments 1Q 2006
Audio Solutions Guide
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