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参数资料
| 型号： | TDA7266D |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 5 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO20 |
| 封装： | POWERSO-20 |
| 文件页数： | 10/13页 |
| 文件大小： | 194K |
| 代理商： | TDA7266D |
TDA7266D
6/13
Figure 3. Stand-alone low-cost Application
PCB Layout and External Components:
Regarding the PCB layout care must be taken for three main subjects:
c) Signal and Power Gnd separation
d) Dissipating Copper Area
e) Filter Capacitors positioning
)Signal and Power Gnd separation:
c To the Signal GND must be referred the Audio Input Signals, the Mute and Stand-by Voltages and
the device PIN.13. This Gnd path must be as clean as possible in order to improve the device
THD+Noise and to avoid spurious oscillations across the speakers.
The Power GND is directly connected to the Output power Stage transistors (Emitters) and is crossed
by large amount of current, this path is also used in this device to dissipate the heating generated (no
needs of external heatsinker).
Referring to the typical application circuit, the separation between the two GND paths must be ob-
tained connecting them separately (star routing) to the bulk
Electrolithic capacitor C1 (470
F).
Regarding the Power Gnd dimensioning we have to consider the Dissipated Power the Thermal Pro-
tection Threshold and the Package thermal Characteristics.
2
5
7
Vref
ST-BY
9
IN1
C3 0.22
F
VCC
15
6
D02AU1410
+
-
+
OUT1+
OUT1-
19
16
14
MUTE
8
IN2
C5 0.22
F
+
-
+
OUT2+
OUT2-
20
13
S-GND
PW-GND
C1
470
F
C2
100nF
C7
100nF
R1
47K
C4
10
F
R2
47K
1
10
11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA7266D13TR | 功能描述:音频放大器 7+7W DUAL BRIDGE AMP RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TDA7266G-J15-A-T | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:7+7W DUAL BRIDGE AMPLIFIER |
| TDA7266G-J15-B-T | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:7+7W DUAL BRIDGE AMPLIFIER |
| TDA7266G-J15-D-T | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:7+7W DUAL BRIDGE AMPLIFIER |
| TDA7266-J15-A-T | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:7+7W DUAL BRIDGE AMPLIFIER |
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