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参数资料
| 型号： | TDA7263L |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 6 W, 2 CHANNEL, AUDIO AMPLIFIER, PSFM10 |
| 封装： | SIP-10 |
| 文件页数： | 7/10页 |
| 文件大小： | 142K |
| 代理商： | TDA7263L |
Obsolete
Product(s)
- Obsolete
Product(s)
TDA7263L
6/10
4
APPLICATION SUGGESTION
The recommended values of the components are those shown on the typical application circuit. Different
values can be used; the following table can help the designer.
(*) Closed loop gain must be higher than 26dB
5
BUILT-IN PROTECTION SYSTEMS
5.1 Thermal Shut-down
The presence of a thermal limiting circuit offers the following advantages:
1 an overload on the output (even if it is permanent), or an excessive ambient temperature can be easily
withstood.
2 the heatsink can have a smaller factor of safety compared with that of a conventional circuit. There is no
device damage in the case of excessive junction temperature; if for any reason the junction temperature
increases up to 145°C. the thermal shutdown simply reduces the output power and therefore the power
dissipation.
The maximum allowable power dissipation depends upon the thermal resistance junction-ambient. Figure
15 shows the dissipable power as a function of ambient temperature for different heatsink thermal resis-
tance.
5.2 Short Circuit (AC Conditions)
The TDA7263L can withstand accidental short circuits across the speaker made by a wrong connection
during normal play operation.
Component
Recomm.
Value
Purpose
Larger Than
Smaller Than
R1 and R3
1.5K
Close loop gain setting (*)
Increase of gain
Decrease of gain
R2 and R4
47
Close loop gain setting (*)
Decrease of gain
Increase of gain
R5 and R6
4.7
Frequency stability
Danger of oscillations
C1 and C2
100nF
Input DC decoupling
Higher SVR
Higher low frequency cutoff
C3
47
F
- Ripple Rejection
- Mute time constant
Increase of the Switch-on
time
- Degradation of SVR
- Worse turn-off pop by muting
C4
100nF
Supply Voltage Bypass
Danger of oscillations
C5
1000
F
Supply Voltage Bypass
C6 and C7
47
F
Feedback input DC
decoupling
Increase of the Switch-on
time
Danger of Switch-on time
C8 and C9
0.1
F
Frequency stability
Danger of oscillations
C10 and C11
1000
F
Output DC decoupling
Higher low-frequency cut-off
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA7263M | 功能描述:音频放大器 12W Stereo Amplifier 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 |
| TDA7264 | 功能描述:音频放大器 25W Stereo Amplifier 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 |
| TDA7264A | 功能描述:音频放大器 25/25W STEREO 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 |
| TDA7265 | 功能描述:音频放大器 25W Stereo Amplifier 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 |
| TDA7265A | 功能描述:音频放大器 25 25W STEREO AMP Mute ST-BY AB DUAL 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 |
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