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TPA2001D1_06

更新时间： 2024-11-08 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
15页 221K
描述
1-W FILTERLESS MONO CLASS-D AUDIO POWER AMPLIFIER

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TPA2001D1_06 数据手册

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TPA2001D1  
1-W FILTERLESS MONO CLASS-D AUDIO POWER AMPLIFIER  
SLOS338D – SEPTEMBER 2000 – REVISED DECEMBER 2002  
PW PACKAGE  
(TOP VIEW)  
D
Modulation Scheme Optimized to Operate  
Without a Filter  
D
D
D
D
TSSOP Package Options  
1 W Into an 8-Ω Speaker (THD+N<1%)  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
INP  
INN  
SHUTDOWN  
GAIN0  
BYPASS  
AGND  
COSC  
ROSC  
<0.2% THD+N at 1 W, 1 kHz, Into an  
8-Ω Load  
GAIN1  
V
DD  
Extremely Efficient Third Generation 5-V  
Class-D Technology:  
– Low-Supply Current (No Filter) . . . 4 mA  
– Low-Supply Current (Filter) . . . 7.5 mA  
– Low-Shutdown Current . . . 0.05 µA  
PV  
PV  
DD  
OUTN  
PGND  
DD  
OUTP  
PGND  
– Low-Noise Floor . . . 40 µV  
RMS  
(No-Weighting Filter)  
– Maximum Efficiency Into 8 Ω, 75 – 85%  
– 4 Internal Gain Settings . . . 6 – 23.5 dB  
– PSRR . . . –77 dB  
D
D
Integrated Depop Circuitry  
Short-Circuit Protection (Short to Battery,  
Ground, and Load)  
description  
The TPA2001D1 is a 1-W mono bridge-tied-load (BTL) class-D amplifier designed to drive a speaker with at  
least 8-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 which must be shielded at the  
systemlevel). Thesefeaturesmakethedeviceidealforuseindeviceswherehigh-efficiencyisneededtoextend  
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 TPA2001D1 is available in the 16-pin TSSOP package that drives 1 W of continuous output power into an  
8-Ω load. TPA2001D1 operates over an ambient temperature range of –40°C to 85°C.  
AVAILABLE OPTIONS  
PACKAGED DEVICES  
T
A
†
TSSOP (PW)  
TPA2001D1PW  
–40°C to 85°C  
†
The PW package is available taped and reeled. To order a taped and reeled  
part, add the suffix R to the part number (e.g., TPA2001D1PWR).  
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.  
Copyright 2002, Texas Instruments Incorporated  
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.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...15

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