TEXAS INSTRUMENTS TAS5010 Technical data

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TAS5010

SLAS328 – SEPTEMBER 2001

TRUE DIGITAL AUDIO AMPLIFIER

TAS5010 DIGITAL AUDIO PWM PROCESSOR

FEATURES

TAS5010 + TAS5100 TDAA System – High

D

Quality Digital Audio Amplification

D 96-dB Dynamic Range (TAS5010 Device)
D 93-dB Dynamic Range (TAS5010 & TAS5100

System Measured at Speaker Terminals)

D THD+N < 0.08% (1 kHz, 1 to 30W RMS into 6 Ω)
D Power Efficiency Is 90% Into 8-Ω Load
D 16-, 20-, or 24-Bit Input Data
D 44.1-kHz, 48-kHz, 88.2-kHz, 96-kHz, 176.4-kHz,

192-kHz Sampling Rates

D Economical 48-Pin TQFP Package
D Lower-Jitter Internal PLL
D 3.3-V Power Supply
D Mute
D Clicks and Pops Reduction (Patent Pending)

APPLICATIONS

DVD-Audio

D

D Home Theater
D Car Audio Amplifiers and Head Units
D Internet Music Appliance
D Mini/Micro Component Systems

DESCRIPTION

The true digital audio amplifier (TDAA) is a new
paradigm in digital audio. One TDAA system consists of
the TAS5010 PCM-PWM modulator device + a
TAS5100 PWM power output device. This system
accepts a serial PCM digital audio stream and converts
it to a 3.3-V PWM audio stream (TAS5010). The
TAS5100 device then provides a large-signal PWM
output. This digital PWM signal is then demodulated
providing power output for driving loudspeakers. This
patented technology provides low-cost, high-quality,
high- efficiency digital audio applicable to many audio
systems developed for the digital age. The T AS5010 is
an innovative, cost-effective, high-performance 24-bit
stereo PCM-PWM modulator based on Equibit
technology. It has a wide variety of serial input options
including right-justified (16, 20, or 24 bits), IIS (16, 20,
or 24 bits), left-justified (16 bits), or DSP (16 bits) data
formats. It is fully compatible with AES standard
sampling rates of 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz,

176.4 kHz, and 192 kHz. The T AS5010 also provides a
de-emphasis function for 44.1-kHz and 48-kHz
sampling rates.

Digital Audio

• TAS3001

• DSP

TAS5010

• S/PDIF

• 1394

• Serial Audio Input Port

• Volume

• EQ

• DRC

• Internal PLL

• Equibit Modulator

• Up to 192-kHz Sampling

• Bass

• Treble

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Equibit is a trademark of Toccata Technology ApS, Denmark.

PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.

Left

Right

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TAS5100

TAS5100

• H-Bridges

Power Devices

L-C

Filter

L-C

Filter

Copyright  2001, Texas Instruments Incorporated

1

TAS5010

SLAS328 – SEPTEMBER 2001

terminal assignments

48-Pin TQFP PACKAGE

(TOP VIEW)

AVDD1

XTL_IN

XTL_OUT

OSC_CAP

AVSS1

DEM_EN

DEM_SEL

FTEST

STEST

DBSPD

MUTE

DVSS3_L

references

MCLK_IN

AVDD2

PLL_FLT_OUT

PLL_FLT_RET

AVSS2

RESET

PDN

VALID_R

M_S

DVDD1

NC – No internal connection

NC

NC

1
2
3
4
5
6
7
8
9
10
11
12

13

47 46 45 44 4348 42 40 39 3841

14 15

DVSS1

16

DVSS1

DVDD1

17 18 19 20

SCLK

LRCLK

MCLK_OUT

SDIN

MOD2

22 23 24

21

MOD1

37

MOD0

VALID_L

DVDD3_L

36

PWM_AP_L

35

PWM_AM_L

34
33

NC

32

NC
DVDD2

31

DVSS2

30

PWM_AP_R

29

PWM_AM_R

28

NC

27

NC

26

DVDD3_R

25

DVSS3_R

D True Digital Audio Amplifier TAS5100 Power Output Stage – Texas Instruments publication SLLS419A
D Design Considerations for TAS5000/TAS5100 True Digital Audio Power Amplifiers – Texas Instruments

publication SLAA117

D Digital Audio Measurements – Texas Instruments publication SLAA114
D PowerPAD Thermally Enhanced Package – Texas Instruments publication SLMA002

PowerPAD is a trademark of Texas Instruments.

2

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functional block diagram

PLL_FLT_RET

PLL_FLT_OUT

MCLK_IN

VALID_R

VALID_L

MCLK_OUT

XTL_IN

XTL_OUT

OSC_CAP

TAS5010

SLAS328 – SEPTEMBER 2001

LRCLK

SCLK

SDIN

Serial
Audio

Port

Control Section

Audio Port

Configuration

MOD0

MOD1

MOD2

PLL/Clock
Generator

Digital

Interpolation

Filter

PDN

MUTE

DEM_EN

DEM_SEL

–40°C to 85°C TAS5010IPFB

†

These packages are available taped and reeled. Add an R suffix to
device type (e.g., TAS5010PFBR).

FTEST

RESET

0°C to 70°C TAS5010PFB

STEST

AVAILABLE OPTIONS

T

A

M_S

DBSPD

Equibit

Modulator

DVDD1

DVSS1

DVDD2

OSC

DVSS2

DVSS3_L

DVDD3_L

PACKAGE

Buffer

AVDD1

DVSS3_R

DVDD3_R

†

AVSS1

AVSS2

AVDD2

PWM_AP_L
PWM_AM_L

PWM_AP_R
PWM_AM_R

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3

TAS5010

SLAS328 – SEPTEMBER 2001

Terminal Functions

TERMINAL

NAME NO.

AVDD1 48 I Analog supply for oscillator
AVDD2 2 I Analog supply for PLL
AVSS1 44 I Analog ground for oscillator
AVSS2 5 I Analog ground for PLL
DBSPD 39 I Indicates sample rate is double speed (88.2 kHz or 96 kHz), active high
DEM_EN 43 I De-emphasis enable, active high
DEM_SEL 42 I De-emphasis select (0 = 44.1 kHz, 1 = 48 kHz)
DVDD1 12, 14 I Digital voltage supply for logic
DVDD2 31 I Digital voltage supply for PWM reclocking
DVDD3_L 36 I Digital voltage supply for PWM output (left)
DVDD3_R 25 I Digital voltage supply for PWM output (right)
DVSS1 13, 15 I Digital ground for logic
DVSS2 30 I Digital ground for PWM reclocking
DVSS3_L 37 I Digital ground for PWM output (left)
DVSS3_R 24 I Digital ground for PWM output (right)
FTEST 41 I Tied to DVSS1 for normal operation
LRCLK 18 I/O Left/right clock (input when M_S = 0; output when M_S = 1)
MCLK_IN 1 I MCLK input
MCLK_OUT 16 O Buffered system clock output if M_S = 1; otherwise set to 0
MOD0 22 I Serial interface selection pin, bit 0
MOD1 21 I Serial interface selection pin, bit 1
MOD2 20 I Serial interface selection pin, bit 2 (MSB)
M_S 10 I Master/slave, master=1, slave=0
MUTE 38 I Muted signal = 0, normal mode = 1
NC 6, 11, 26,

27, 32, 33
OSC_CAP 45 I Oscillator cap return
PDN 8 I Power down, active low
PLL_FLT_OUT 3 O Output terminal for external PLL filter
PLL_FLT_RET 4 I Return for external PLL filter
PWM_AM_L 34 O PWM left output (differential –)
PWM_AM_R 28 O PWM right output (differential –)
PWM_AP_L 35 O PWM left output (differential +)
PWM_AP_R 29 O PWM right output (differential +)
RESET 7 I Reset (active low)
SCLK 17 I/O Shift clock (input when M_S = 0, output when M_S = 1)
SDIN 19 I Stereo serial audio data input
STEST 40 I Tied to DVSS1 for normal operation
VALID_L 23 O PWM left outputs valid (active high)
VALID_R 9 O PWM right outputs valid (active high)
XTL_IN 47 I Crystal or clock input (MCLK input)
XTL_OUT 46 O Crystal output (not for external usage).NC when XTL_IN is MCLK input

I/O

DESCRIPTION

No connection

4

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SLAS328 – SEPTEMBER 2001

functional description

serial audio port

The serial audio port consists of a shift clock (SCLK pin), a left/right frame synchronization clock (LRCLK pin),
and a data input (SDIN pin). The serial audio port supports standard serial PCM formats (Fs = 44.1 kHz, 48 kHz,

88.2 kHz, 96 kHz, 176.4kHz, or 192kHz) stereo. See serial interface formats section.

system clocks—master mode and slave mode

The TAS5010 allows multiple system clocking schemes. In this document, master mode indicates that the
T AS5010 provides system clocks to other parts of the system (M_S=1). Audio system clocks of frequency 256Fs
MCLK_OUT , 64 Fs SCLK, and Fs LRCLK are output from this device when it is configured in master mode. Slave
mode indicates that a system master other than the TAS5010 provides system clocks (LRCLK, SCLK, and
MCLK_IN) to the T AS5010 (M_S = 0). The TAS5010 operates with LRCLK and SCLK synchronized to MCLK.
TAS5010 does not require any specific phase relationship between LRCLK and MCLK, but there must be
synchronization. In the slave mode MCLK_OUT is driven low. Table 1 shows all the possible master and slave
modes. When operating in quad mode (Fs = 176.4kHz or 192 kHz), the device works in slave mode only with
MCLK_IN = 128 Fs.

oscillator/sampling frequency

The sampling frequency is determined by the crystal (master mode) or master clock in (slave mode) which
should be either 11.2896 MHz (Fs = 44.1 kHz) or 12.288 MHz (Fs = 48 kHz). Twice the normal sampling
frequency can be selected by using the DBSPD pin which allows usage of Fs = 88.2 kHz or Fs = 96 kHz. In the
double-speed slave mode (DBSPD = 1, M_S = 0), the external clock input is either 22.5796 MHz (Fs = 88.2 kHz)
or 24.576 MHz (Fs = 96 kHz). Table 1 explains the proper clock selection.

TAS5010

Table 1. Oscillator, External Clock, and PLL Functions

DESCRIPTION M_S DBSPD

Master, normal speed 1 0 11.2896 — 2.8224 44.1 11.2896
Master, normal speed 1 0 12.288 — 3.072 48 12.288
Master, double speed 1 1 — 22.5792
Master, double speed 1 1 — 24.576
Slave, normal speed 0 0 — 11.2896
Slave, normal speed 0 0 — 12.288
Slave, double speed 0 1 — 22.5792
Slave, double speed 0 1 — 24.576

Slave, quad speed
Slave, quad speed

†

Either a crystal oscillator or an external clock of the specified frequency can be connected to XTL_IN.

‡

MCLK_IN tied low when input to XTL_IN is provided; XTL_IN tied low when MCLK_IN is provided.

§

External MCLK connected to MCLK_IN input

¶

SCLK and LRCLK are outputs when M_S=1, inputs when M_S=0.

#

MCLK_OUT is driven low when M_S=0.

||

Quad speed mode is detected automatically.

||
||

0 0 — 22.5792§11.2896 176.4 Digital GND
0 0 — 24.576

XTL_IN
(MHz)

†

MCLK_IN

‡

(MHz)

SCLK

(MHz)

§

5.6448 88.2 22.5792

§

§

2.8224 44.1 Digital GND

§

§

5.6448 88.2 Digital GND

§

§

12.288 192 Digital GND

LRCLK

¶

6.144 96 24.576

3.072 48 Digital GND

6.144 96 Digital GND

(kHz)

¶

MCLK_OUT

(MHz)

phase-locked loop (PLL)/clock generation

A low jitter PLL is incorporated for internal use. Connections for the PLL external loop filter are provided as
PLL_FL T_RET and PLL_FL T_OUT . If the PLL loses lock, the PWM output status pins (V ALID_L and V ALID_R)
go low. Note that VALID_L and VALID_R can go low for other conditions as well. See error status reporting
section.

#

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5

TAS5010

SLAS328 – SEPTEMBER 2001

functional description (continued)

digital interpolation filter

The 24-bit high-performance linear phase FIR interpolation filter up-samples the input digital data at a rate of
2 times (quad speed mode = 176.4kHz or 192kHz), 4 times (double speed mode = 88.2 kHz or 96 kHz), or 8
times (normal mode = 44.1 kHz or 48 kHz) the incoming sample rate. This filter provides very low pass-band
ripple and optimized time domain transient response for accurate music reproduction.

digital PWM modulator

The interpolation filter output is sent to the modulator. This modulator consists of a high performance fourth order
digital noise shaper and a PCM-to-PWM converter. Following the noise shaper , the PCM signal is fed into a very
low distortion PCM-to-PWM conversion block, buffered, and output from the chip. The modulation scheme is
based on a 2-state control of the H-bridge output.

control, status, and operational modes

The T AS5010 control section consists of several control-input pins. Three serial mode pins (MOD0, MOD1, and
MOD2) are provided to select various serial data formats. During normal operating conditions if any of the
MOD0, MOD1, or MOD2 pins changes state, a reset sequence is initiated. Also provided are separate
power-down (PDN

), reset (RESET), and mute (MUTE) pins.

power up

At power up the V ALID_L and VALID_R pins are asserted low and the PWM outputs go to the hard mute state
in which the P outputs are held low and the M outputs are held high. Following initialization, the T AS5010 comes
up in the operational state (differential PWM audio). There are two cases of power-up timing. The first case is
shown in Figure 1 with RESET
RESET

.

RESET

PDN

VALID_L

VALID_R

preceding PDN. The second case is shown in Figure 2 with PDN preceding

Initialization Time = 100 ms max

Figure 1. Power-Up Timing (RESET Preceding PDN)

Greater Than 16 MCLK Periods

RESET

PDN

Initialization Time = 5 ms max

VALID_L

VALID_R

Figure 2. Power-Up Timing (PDN Preceding RESET)

6

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