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TPA2000D1_06

更新时间： 2024-09-21 03:58:47
品牌 Logo 应用领域
德州仪器 - TI 放大器功率放大器LTE
页数 文件大小 规格书
20页 268K
描述
2-W FILTERLESS MONO CLASS-D AUDIO POWER AMPLIFIER

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TPA2000D1_06 数据手册

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TPA2000D1  
GQC  
PW  
www.ti.com  
SLOS328F–JUNE 2000–REVISED MARCH 2004  
2-W FILTERLESS MONO CLASS-D AUDIO POWER AMPLIFIER  
FEATURES  
PW PACKAGE  
•
Modulation Scheme Optimized to Operate  
(TOP VIEW)  
Without a Filter  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
INP  
INN  
SHUTDOWN  
GAIN0  
BYPASS  
AGND  
COSC  
ROSC  
V
DD  
PV  
DD  
•
4 mm × 4 mm MicroStar Junior BGA and  
TSSOP Package Options  
•
•
•
2 W Into a 4-Ω Speaker (THD+N<1%)  
<0.2% THD+N at 1.5 W, 1 kHz, Into a 4-Ω Load  
GAIN1  
PV  
DD  
Extremely Efficient Third Generation 5-V  
Class-D Technology:  
OUTP  
PGND  
OUTN  
PGND  
– Low-Supply Current (No Filter): 4 mA  
– Low-Supply Current (Filter): 7.5 mA  
– Low-Shutdown Current: 0.05 µA  
MicroStar Juniort (GQC) Package  
(TOP VIEW)  
INP  
AGND BYPASS  
– Low-Noise Floor: 40 µVRMS (No-Weighting  
Filter)  
A2  
A6  
A1  
B1  
A7  
B7  
INN  
SHUTDOWN  
GAIN0  
NC  
COSC  
ROSC  
– Maximum Efficiency Into 8 Ω, 75 - 85 %  
– 4 Internal Gain Settings: 6 to 23.5 dB  
– PSRR: -77 dB  
C1  
D1  
C7  
D7  
V
DD  
GAIN1  
E1  
E7  
PV  
PV  
PV  
PV  
OUTN  
DD  
DD  
DD  
F1  
F7  
DD  
•
•
Integrated Depop Circuitry  
G1  
G7  
OUTP  
Short-Circuit Protection (Short to Battery,  
Ground, and Load)  
PGND  
(SIDE VIEW)  
APPLICATIONS  
•
High-Efficiency For Extended Battery Run  
Time  
NC – No internal connection, still requires a pad for the ball.  
NOTE: The shaded terminals are used for thermal  
connections to the ground plane.  
DESCRIPTION  
The TPA2000D1 is a 2-W mono bridge-tied-load (BTL) class-D amplifier designed to drive a speaker with at least  
4-Ω impedance. The amplifier uses TI's third generation modulation technique, which results in improved  
efficiency and SNR. It also allows the device to be connected directly to the speaker without the use of the LC  
output filter commonly associated with class-D amplifiers (this results in EMI that must be shielded at the system  
level). These features make the device ideal for use in devices where high efficiency is needed to extend battery  
run time.  
The gain of the amplifier is controlled by two input terminals, GAIN1 and GAIN0. This allows the amplifier to be  
configured for a gain of 6, 12, 18, and 23.5 dB. The differential input terminals are high-impedance CMOS inputs,  
and can be used as summing nodes.  
The class-D BTL amplifier includes depop circuitry to reduce the amount of turnon pop at power up and when  
cycling SHUTDOWN.  
The TPA2000D1 is available in the 16-pin TSSOP and MicroStar Junior™ BGA packages that drive 2 W of  
continuous output power into a 4-Ω load. TPA2000D1 operates over an ambient temperature range of -40°C to  
85°C.  
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.  
MicroStar Junior is a trademark of Texas Instruments.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2000–2004, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
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