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参数资料
| 型号： | TS4956EIKJT |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 1.055 W, 2 CHANNEL, AUDIO AMPLIFIER, PBGA18 |
| 封装： | ROHS COMPLIANT, FCP-18 |
| 文件页数： | 38/52页 |
| 文件大小： | 1709K |
| 代理商： | TS4956EIKJT |
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TS4956
Application information
43/51
4.6
Decoupling of the circuit
Two capacitors are needed to properly bypass the TS4956 — a power supply capacitor Cs
and a bias voltage bypass capacitor Cb.
Cs has a strong influence on the THD+N at high frequencies (above 7 kHz) and indirectly on
the power supply disturbances.
With a Cs value of about 1 F, you can expect to obtain THD+N performances similar to
those shown in the datasheet.
If Cs is lower than 1 F, THD+N increases in high frequency and disturbances on power
supply rail are less filtered.
On the contrary, if Cs is higher than 1 F, disturbances on the power supply rail are more
filtered.
Cb has an influence on THD+N at lower frequencies, but its value has critical impact on the
final result of PSRR with inputs grounded at lower frequencies:
●
If Cb is lower than 1 F, THD+N increases at lower frequencies and the PSRR
worsens upwards.
●
If Cb is higher than 1 F, the benefit on THD+N and PSRR in the lower
frequency range is small.
The value of Cb also has an influence on startup time.
4.7
Power On Reset
When power is applied to VCC, an internal Power On Reset holds the TS4956 in a reset
state (shutdown) until the supply voltage reaches its nominal value. The Power On Reset
has a typical threshold of 1.75 V.
During this reset state the output configuration is the same as in the shutdown mode.
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PDF描述 |
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| TS4956EKIJT | 1.06 W, 2 CHANNEL, AUDIO AMPLIFIER, PBGA18 |
| TS4961TIQT | 1.5 W, 1 CHANNEL, AUDIO AMPLIFIER, QCC16 |
| TS4962EIJT | 3 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9 |
| TS4962EIKJT | 3 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9 |
| TS4962EKIJT | 3 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TS4961TIQT | 功能描述:音频放大器 MONO CLASS D AUDIO PWR 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 |
| TS4962 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:2.8W filter-free mono class D audio power amplifier |
| TS4962_07 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:2.8W filter-free mono class D audio power amplifier |
| TS4962_10 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:2.8 W filter-free mono class D audio power amplifier |
| TS4962EIJT | 制造商:STMicroelectronics 功能描述:AUD AMP SPKR 1CH MONO 2W CLS-D 9PIN FLIP-CHIP - Tape and Reel |
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