參數(shù)資料
型號(hào)： TDA8589AJ
廠商： NXP SEMICONDUCTORS
元件分類： 消費(fèi)家電
英文描述： I2C-bus controlled 4 45 Watt power amplifier and multiple voltage regulator
中文描述： SPECIALTY CONSUMER CIRCUIT, PZFM37
封裝： PLASTIC, SOT725-1, 37 PIN
文件頁(yè)數(shù)： 49/55頁(yè)
文件大?。?/td> 561K
代理商： TDA8589AJ
2004 Feb 24
49
Philips Semiconductors
Product speci
cation
I
2
C-bus controlled 4 45 Watt power
ampli
er and multiple voltage regulator
TDA8589J; TDA8589xJ
Beep input circuit
Beep input circuit to amplify the beep signal from the microcontroller to all 4 amplifiers (gain = 0 dB). Note that this circuit
will not affect amplifier performance.
Noise
The outputs of regulators 1 to 5 are designed to give very lownoise with good stability. The noise output voltage depends
on output capacitor C
o
. Table 11 shows the affect of the output capacitor on the noise figure.
Table 11
Regulator noise
gures
Note
1.
Measured in the frequency range 20 Hz to 80 kHz.
Stability
The regulators are made stable by connecting capacitors to the regulator outputs. The stability can be guaranteed with
almost any output capacitor if its Electric Series Resistance (ESR) stays below the ESR curve shown in Fig.34. If an
electrolytic capacitor is used, its behaviour with temperature can cause oscillations at extremely low temperature.
Oscillation problems can be avoided by adding a 47 nF capacitor in parallel with the electrolytic capacitor. The following
example describes how to select the value of output capacitor.
REGULATOR
NOISE FIGURE ( V) at I
REG
= 10 mA; note
1
C
o
= 10 F
225
750
120
225
320
C
o
= 47 F
195
550
100
195
285
C
o
= 100 F
185
530
95
185
270
1
2
3
4
5
From
microcontroller
1.7 k
0.22 F
100
2.2 F
47 pF
TDA8589
ACGND
Fig.33 Application diagram for beep input.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA8589AJ/N3 功能描述:音頻放大器 POWER AMPL + STABI RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TDA8589AJ/N3,112 功能描述:音頻放大器 POWER AMPL + STABI RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TDA8589BJ 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:I2C-bus controlled 4 45 Watt power amplifier and multiple voltage regulator
TDA8589BJ/N3 功能描述:音頻放大器 POWER AMPL + STABI RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
TDA8589BJ/N3,112 功能描述:音頻放大器 POWER AMPL + STABI RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
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