sta333mlj13tr STMicroelectronics, sta333mlj13tr Datasheet

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sta333mlj13tr

Manufacturer Part Number
sta333mlj13tr
Description
Sound Terminal Tm 2 Channel Microless High Efficiency Digital Audio System
Manufacturer
STMicroelectronics
Datasheet

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Features
Applications
Order codes
February 2007
This is preliminary information on a new product foreseen to be developed. Details are subject to change without notice.
Wide supply voltage range (4.5-18 V)
2 x 20 W @ 8
3 power output configurations; 2 channels of
ternary PWM
PowerSSO-36 exposed pad package
2 channels of 24-Bit DDX®
100 dB SNR and dynamic range
32 kHz to 48 kHz input sample rates
Soft volume update
Automatic zero-detect mute
Automatic invalid input detect mute
2-channel I
Selectable clock input ratio (256 / 364 Fs)
Max power correction for lower full power
96 kHz internal processing sample rate, 24-bit
precision
Thermal overload and short-circuit protection
embedded
LCD
DVD
Cradle
Digital speaker
Wireless speaker cradle
STA333ML13TR
Part number
STA333ML
2
S input data interface
2 channel microless high efficiency digital audio system
Ω,
Vcc = 18 V
PowerSSO36 (slug down)
PowerSSO36 (slug down)
Package
Rev 1
Description
STA333ML is a single die embedding digital audio
processing and high efficiency power
amplification, capable of operating without the aid
of an external micro controller.
The STA333ML is part of the Sound Terminal
family that provides full digital audio streaming to
the speaker offering cost effectiveness, low
energy dissipation and sound enrichment.
The STA333ML combines a unique 24-bit DDX®
digital Class-D ternary modulator together with an
extremely low RDSON stereo power Dmos stage.
The latter is capable of a total output power of
2 x 20 W with outstanding performances in terms
of efficiency (>90 %), THD, SNR and EMI.
The microless feature allows the use in low cost
applications (cradle, digital speakers, audio
terminals) where no micro controller is needed.
The serial audio data interface accepts the world
wide used I
oversampling clock, gain, I
using a minimal number of selection pins.
STA333ML is self-protected against thermal
overload, overcurrent, short circuit and
overvoltage conditions.
The fault condition is also exported to an external
pin (INT-LINE) for specific requirements.
2
S format; basic features (for example,
PowerSSO36 slug down
Sound Terminal
Tape and reel
2
S format) can be set
STA333ML
Packing
Tube
Target Specification
www.st.com
TM
TM
1/15
15

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sta333mlj13tr Summary of contents

Page 1

Features ■ Wide supply voltage range (4.5-18 V) Ω, ■ Vcc = 18 V ■ 3 power output configurations; 2 channels of ternary PWM ■ PowerSSO-36 ...

Page 2

Contents Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 3

STA333ML 1 Block diagram Figure 1. Block diagram interface Power control Volume control DDX PLL Protection current/thermal Channel 1A Channel 1B Logic Channel 2A Regulators Channel 2B Bias Block diagram 3/15 ...

Page 4

Pin description 2 Pin description Figure 2. Pin connection (Top view) TEST_MODE GND_REG Table 1. Pin description Pin 4/15 1 GND_SUB 2 FMT 3 4 VSS_REG 5 VCC_REG ...

Page 5

STA333ML Table 1. Pin description (continued) Pin Type Name I/O OUT1A GND GND_REG Power VDD_REG I ...

Page 6

Electrical specifications 3 Electrical specifications 3.1 Thermal data Table 2. Thermal data Symbol R Thermal resistance junction to case (thermal pad) Th(j-case) T Thermal shut-down junction temperature sd T Thermal warning temperature w T Thermal shut-down hysteresis hsd 3.2 Absolute ...

Page 7

STA333ML 3.4 Electrical characteristics Table 5. Electrical characteristics ( V,VDD_DIG=3 specified) Symbol Parameter Po Output power BTL Power Pchannel/Nchannel R dsON MOSFET (Total Bridge) Power Pchannel/Nchannel l dss leakage Power Pchannel RdsON gP Matching Power ...

Page 8

Electrical specifications Table 5. Electrical characteristics (continued V,VDD_DIG=3 specified) Symbol Parameter X Crosstalk TALK η Peak efficiency, DDX mode Table 6. Functional pin status Pin name PWRDN PWRDN 8/15 = 384 kHz ...

Page 9

STA333ML 4 Testing Figure 3. Resistive load Duty cycle = 50% Figure 4. Test circuit Duty cycle=A DTin(A) INA Low current dead time = MAX(DTr,DTf) +Vcc M58 OUTxY INxY M57 gnd High Current Dead time for Bridge application = ABS(DTout(A)-DTin(A))+ABS(DTOUT(B)-DTin(B)) ...

Page 10

Functional description 5 Functional description 5.1 Serial audio interface protocols 2 Figure Lrclki Bicki Sdi Figure 6. Left justified Lrclki/ Lrclko Biclki/ Biclko Sdatai/ 1 Sdatao 5.2 Fault detect recovery bypass The on-chip STA333ML power output block ...

Page 11

STA333ML 5.3 Zero-detect mute enable If this function is enabled, the zero-detect circuit examines each processing channel to see if 2048 consecutive zero value samples (regardless of fs) are received the channel is muted. Functional description 11/15 ...

Page 12

Package thermal characteristics 6 Package thermal characteristics A thermal resistance of 25 °C per Watt can be achieved using a ground copper area cm, and using 16 vias, on the PCB (see within the device depends ...

Page 13

STA333ML 7 Package information In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner ...

Page 14

Revision history 8 Revision history Table 7. Document revision history Date 1-Feb-2007 14/15 Revision 1 Initial release. STA333ML Changes ...

Page 15

... STA333ML Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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