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PDF TMPA205DS Data sheet ( Hoja de datos )
| Número de pieza | TMPA205DS | |
| Descripción | 2.45-W/Ch STEREO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER | |
| Fabricantes | ETC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TMPA205DS (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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Tai-1 Microelectronics
www.taimec.com.tw
TMPA205DS
December 2004
2.45-W/Ch STEREO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER
GENERAL DESCRIPTION
The TMPA205DS is a stereo class-D filter–free audio power
amplifier IC. It delivers up to 2.45W/Ch power into a 4 ohm
load or 1.5W/Ch power into an 8 ohm load. Two patents are
pending.
With common mode input structure, TMPA205DS requires no
input or output coupling capacitors. It also features high
Common Mode Rejection Ratio and Power Supply Rejection
Ratio.
For multiple-input applications, independent gain control and
corner frequency can be implemented by summing the input
sources through resistor ratio and input capacitor values.
Analog input signal is converted into digital output which
drives directly to the speaker. High power efficiency is
achieved due to digital output at the load. The audio
information is embedded in PWM（Pulse Width Modulation）.
APPLICATIONS
Multimedia application includes Cellular Phones, PDAs,
DVD/CD players, TFT LCD TVs/Monitors, 2.1 channel/5.1
channel audio systems, USB audio. It is also ideal for other
portable devices like Wireless Radios.
FEATURES
♦ 2.5V to 5.5V Single Supply
♦ Up to 5.3W/Ch Max. Power or 2.45W/Ch rms.
♦ Up to 92% Power Efficiency
♦ 3.5mA Quiescent Current
♦ Less Than 0.3uA Shutdown Current
♦ Popless Power-Up, Shutdown and Recovery
♦ Differential 250 KHz PWM Allows Bridge-Tied Load to
Doubles Output Power and Eliminates LC Output Filter
♦ Common Mode Structure Requires No Input Capacitors
♦ BTL Output Requires No Output Capacitors
♦ Thermal Shutoff and Automatic Recovery
♦ Short-Circuit Protection
♦ Differential Signal Processing Improves CMRR &
Eliminates Power Regulation & Bypass Capacitor
♦ Package：TSSOP, PDIP, SOP Available
REFERENCE CIRCUIT（Please refer to TMPA002.APP for application）
To PS
VDD
Cs
Vi1-
Differential
Input
Vi1+
Ri1 IN1-
Ri1 IN1+
-
+
SDN1
SDN2
Vi2-
Differential
Input
Vi2+
Ri2 IN2-
Ri2 IN2+
-
+
PWM
Power
Drive
Vo1+
Vo1-
Control
Circuitry
PWM
Power
Drive
GND
Vo2+
Vo2-
TMPA205DS
VDD
Vo1-
GND
SDN1
VDDA
GNDA
IN2+
IN2-
GND
Vo2+
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
Vo1+
GND
IN1-
IN1+
GNDA
VDDA
SDN2
GND
Vo2-
VDD
Copyright©2003, Tai-1 Microelectronics Corp.
PDF created with pdfFactory Pro trial version www.pdffactory.com
1
1 page  
Tai-1 Microelectronics
www.taimec.com.tw
Physical Dimensions (IN MILLIMETERS)
6.5± 0.1
-A-
20 11
TMPA205DS
December 2004
6.4
3.2
PIN#1
IDENT.
1
4.4 ± 0.1
-B-
10 0.2 C B A
ALL LEAD TIPS
1.1 MAX
TYP
0.1 C
ALL LEAD TIPS
-C-
0.65 TYP
0.19 - 0.30 TYP
0.13 M A B S C S
(0.9)
0.10 ±0.05 TYP
7.72 TYP
4.16 TYP
(1.78 TYP)
0.42 TYP
0.65 TYP
LAND PATTERN
TSSOP20
Copyright©2003, Tai-1 Microelectronics Corp.
PDF created with pdfFactory Pro trial version www.pdffactory.com
12
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet TMPA205DS.PDF ] | |
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