- 您现在的位置：买卖IC网 > PDF目录98290 > TS4984EIKJT (STMICROELECTRONICS) 1.2 W, 2 CHANNEL, AUDIO AMPLIFIER, PBGA15 PDF资料下载
参数资料
| 型号： | TS4984EIKJT |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 1.2 W, 2 CHANNEL, AUDIO AMPLIFIER, PBGA15 |
| 封装： | LEAD FREE, FCP-15 |
| 文件页数： | 16/30页 |
| 文件大小： | 1644K |
| 代理商： | TS4984EIKJT |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页当前第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页
TS4984FC
Application Information
23/30
4.8
Pop performance
Pop performance is intimately linked with the size of the input capacitor Cin and the bias voltage
bypass capacitor Cb.
The size of Cin is dependent on the lower cut-off frequency and PSRR values requested. The
size of Cb is dependent on THD+N and PSRR values requested at lower frequencies.
Moreover, Cb determines the speed with which the amplifier turns ON. In order to reach near
zero pop and click, the equivalent input constant time,
τin =(Rin +2k)xCin (s) with Rin ≥ 5k
must not reach the
By following the previous rules, the TS4984 can reach near zero pop and click even with high
gains such as 20dB.
Example calculation:
With Rin =22k and a 20Hz, -3dB lower cut-off frequency, Cin = 361nF.
So, Cin =390nF with standard value which gives a lower cut-off frequency equal to 18.5Hz.
In this case, (Rin +2k)x Cin =9.36ms.
When referring to the previous graph, if Cb =1F and VCC = 5V, we read 20 ms max.
This value is twice as high as our current value, thus we can state that pop and click will be
reduced to its lowest value. Minimizing both Cin and the gain benefits both the pop phenomena,
and the cost and size of the application.
Figure 66.
τin max. versus bypass capacitor
12
34
0
40
80
120
160
Vcc=5V
Vcc=3.3V
Vcc=2.6V
Tamb=25
°C
in
m
ax.
(m
s)
Bypass Capacitor Cb ( F)
相关PDF资料 |
PDF描述 |
|---|---|
| TS4984EKIJT | 1.2 W, 2 CHANNEL, AUDIO AMPLIFIER, PBGA15 |
| TS4984IQT | 1 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC16 |
| TS4990EIKJT | 1.2 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9 |
| TS4990EKIJT | 1.2 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9 |
| TS4990EIJT | 1.2 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TS4984FC | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:1.2W Stereo Audio Power Amplifier with Active Low Standby Mode |
| TS4984IQT | 功能描述:音频放大器 2x1W stereo 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 |
| TS4985 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:2x1.2w Stereo Audio Power Amplifier with Dedicated Standby Pins |
| TS4985EIJT | 功能描述:音频放大器 2x1.2W stereo audio 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 |
| TS4985EIKJT | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:2x1.2w Stereo Audio Power Amplifier with Dedicated Standby Pins |
发布紧急采购，3分钟左右您将得到回复。