TA2024B Tripath Technology Inc., TA2024B Datasheet

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TA2024B

Manufacturer Part Number
TA2024B
Description
Stereo 15w 4 ? Class-t ?igital Audio Amplifier Using Digital Power Processing ?echnology
Manufacturer
Tripath Technology Inc.
Datasheet

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TA2024B
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TA2024B
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A B S O L U T E M A X I M U M R A T I N G S
TA2024B
STEREO 15W (4:) CLASS-T™ DIGITAL AUDIO AMPLIFIER USING
DIGITAL POWER PROCESSING™ TECHNOLOGY
G E N E R A L D E S C R I P T I O N
The TA2024B is a 15W/ch continuous average two-channel Class-T Digital Audio Power Amplifier IC
using Tripath’s proprietary Digital Power Processing™ technology. Class-T amplifiers offer both the
audio fidelity of Class-AB and the power efficiency of Class-D amplifiers.
A P P L I C A T I O N S
¾Computer/PC Multimedia
¾DVD Players
¾Cable Set-Top Products
¾Televisions
¾Video CD Players
¾Battery Powered Systems
B E N E F I T S
¾Fully integrated solution with FETs
¾Easier to design-in than Class-D
¾Reduced system cost with no heat sink
¾Dramatically improves efficiency versus Class-
¾Signal fidelity equal to high quality linear
¾High dynamic range compatible with digital
1
T e c h n i c a l I n f o r m a t i o n
TYPICAL PERFORMANCE
AB
amplifiers
media such as CD, DVD, and Internet audio
(Note 1)
F E A T U R E S
¾Class-T architecture
¾Single Supply Operation
¾“Audiophile” Quality Sound
¾High Power
¾High Efficiency
¾Dynamic Range = 98 dB
¾Mute and Sleep inputs
¾Turn-on & turn-off pop suppression
¾Over-current protection
¾Over-temperature protection
¾Bridged outputs
¾36-pin Power SOP package
T r i p a t h T e c h n o l o g y , I n c . - T e c h n i c a l I n f o r m a t i o n
¾0.03% THD+N @ 9W, 4:
¾0.10% IHF-IM @ 1W, 4:
¾11W @ 4:, 0.1% THD+N
¾6W @ 8:, 0.1% THD+N
¾15W @ 4:, 10% THD+N
¾10W @ 8:, 10% THD+N
¾81% @ 15W, 4:
¾90% @ 10W, 8:
R e v i s i o n 1 . 2 – J a n u a r y 2 0 0 6
TA2024B –KL/1.2/01.06

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TA2024B Summary of contents

Page 1

... The TA2024B is a 15W/ch continuous average two-channel Class-T Digital Audio Power Amplifier IC using Tripath’s proprietary Digital Power Processing™ technology. Class-T amplifiers offer both the audio fidelity of Class-AB and the power efficiency of Class-D amplifiers ...

Page 2

... (Note 4) MIN. 8.5 3.5 PARAMETER Value UNITS 16 V 6.0 V -0.3 to 6.0 V -0.3 to V5+0.3 V -40 to 150 150 qC TYP. MAX. UNITS 12 13 VALUE UNITS 2 C/W TA2024B –KL/1.2/01.06 ...

Page 3

... VDD = 9V to 13.2V Vripple = 100mVrms, f=1kHz P = 10W/Channel OUT L No Load, MUTE = Logic Low A-Weighted, input AC grounded TYP. MAX. UNITS 0.03 % 0.10 0 150 V 3 100 PV TA2024B –KL/1.2/01.06 ...

Page 4

... A logic high output indicates thermal overload output is shorted to ground, or another output. 20, 35 PGND2, PGND1 Power Grounds (high current) 22 DGND Digital Ground. Connect to AGND locally (near the TA2024B). 24, 27; OUTP2 & OUTM2; Bridged output pairs 31, 28 OUTP1 & OUTM1 25, 26, VDD2, VDD2 Supply pins for high current H-bridges, nominally 12VDC ...

Page 5

... Note: Analog and Digital/Power Grounds must be connected locally at the TA2024B Analog Ground Digital/Power Ground All Diodes Motorola MBRS130T3 * Use ...

Page 6

... A C Charge pump input capacitor. This capacitor should be connected directly between D pins 2 (DCAP2) and 3 (DCAP1) and located physically close to the TA2024B. C Charge pump output capacitor that enables efficient high side gate drive for the P internal H-bridges. To maximize performance, this capacitor should be connected directly between pin 36 (CPUMP) and pin 33 (VDDA) ...

Page 7

... TA2024B –KL/1.2/01.06 ...

Page 8

... Both C2 and C3 may decouple VDD1 to a ground plane, but it is critical that the return path to the PGND1 pin of the TA2024B, whether ground plane or a trace short and direct low impedance path. Effectively decoupling VDD will shunt any power supply trace length inductance. ...

Page 9

... TA2024B output pins is to reduce the trace length of the switching outputs. This will aid in reducing radiated emissions. Please see the External Component Description section on page 6 for more details on the above- mentioned components. The Application/ Test Circuit refers to the low side diodes as D ...

Page 10

... Copper Area (square inches) In the above graph Copper Area is the size of the copper pad on the PC board to which the heat slug of the TA2024B is soldered. The heat slug must be soldered to the PC Board to increase the maximum power dissipation capability of the TA2024B package. Soldering will minimize the likelihood of an over-temperature fault occurring during continuous heavy load conditions. The vias used for connecting the heatslug to the copper area on the PCB should be 0.013” ...

Page 11

... Tripath amplifiers switching pattern will degrade the measurement. One feature of the TA2024B is that it does not require large multi-pole filters to achieve excellent performance in listening tests, usually a more critical factor than performance measurements. Though using a multi-pole filter may remove high-frequency noise and improve THD+N type measurements (when they are made with wide-bandwidth measuring equipment), these same filters degrade frequency response ...

Page 12

... The package for the TA2024B is a 36-Lead Power Small Outline Package (PSOP), similar to JEDEC outline MO-166, variation AE. Tripath currently has two suppliers for this package. We recommend that the exposed copper heatslug width for the PCB design be at least 7.3mm wide to accommodate the heatslug width variation for each package ...

Page 13

... MAX DIM MIN MAX 3.600 E1 11.00 BSC - E2 - 3.300 E3 6.300 0.152 E4 2.700 E5 - 13.000 L 0.800 1.100 L1 1.60 REF 1.000 L2 0.350 BSC All DIM measured in mm 2.900 7.300 2.900 1.000 1.100 TA2024B –KL/1.2/01.06 ...

Page 14

... Orchard Parkway, San Jose, CA 95131 408.750.3000 - P 408.750.3001 - F For more Sales Information, please visit us @ For more Technical Information, please visit www.tripath.com/cont_s.htm www.tripath.com/data.htm TA2024B –KL/1.2/01.06 ...

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