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參數資料
| 型號： | TS4604IPT |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.065 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO28 |
| 封裝： | 0.65 MM PITCH, ROHS COMPLIANT, TSSOP-28 |
| 文件頁數： | 19/31頁 |
| 文件大小： | 644K |
| 代理商： | TS4604IPT |
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Application information
TS4604
26/31
Doc ID 17913 Rev 1
With a gain set at G = 0 dB, a Rin = 10 k
Ω and Cin = 2.2 F, to charge Cin to 95% of its final
value, 66 ms are necessary.
Wake-up time of the TS4604
The total startup sequence with the settings described being 66 ms, and since the TS4604
needs 30 ms to wake up, the Enable pin for the line driver and/or headphone can be set high
36 ms after the power supply has reached its normal value (Figure 55).
With a lower input capacitance, the startup phase is quicker.
Figure 55.
Power-up/down sequence
6.13
Layout recommendations
Particular attention must be given to the correct layout of the PCB traces and wires between
the amplifier, load and power supply.
The power and ground traces are critical since they must provide adequate energy and
grounding for all circuits. Good practice is to use short and wide PCB traces to minimize
voltage drops and parasitic inductance.
Proper grounding guidelines help improve audio performances, minimize crosstalk between
channels, and prevent switching noise from coupling into the audio signal. It is also
recommended to use a large-area and multi-via ground plane to minimize parasitic
impedance.
Connect all the VCC tracks (PVCCLD and PVCCHP) to one point one the board.
The copper traces that connect the output pins to the load and supply pins should be as
wide as possible to minimize the trace resistances.
The gain setting resistors must be placed as close as possible to the input in order to
minimize the parasitic capacitors on these inputs pins.
Supply
EN_xx
36 ms
Vout
30 ms
Supply ramp
66 ms
AM06148
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相關代理商/技術參數 |
參數描述 |
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| TS461 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:OUTPUT RAIL TO RAIL OPERATIONAL AMPLIFIERS |
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| TS461CD | 功能描述:運算放大器 - 運放 Single Rail-to-Rail RoHS:否 制造商:STMicroelectronics 通道數量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| TS461CD | 制造商:STMicroelectronics 功能描述:IC OP AMP RRO/P SMD SOIC8 461 |
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