參數(shù)資料
型號(hào)： TDA8559
廠商： NXP Semiconductors N.V.
元件分類： 音頻放大器
英文描述： Low-voltage stereo headphone amplifier
中文描述： 低電壓立體聲耳機(jī)放大器
文件頁數(shù)： 8/32頁
文件大?。?/td> 264K
代理商： TDA8559
1997 Jun 27
8
Philips Semiconductors
Product specification
Low-voltage stereo headphone amplifier
TDA8559
APPLICATION INFORMATION
General
For applications with a maximum supply voltage of 6 V
(input mode LOW) the input pins need a DC path to ground
(see Figs 3 and 4). For applications with supply voltages in
the range from 6 to 18 V (input mode HIGH) the input DC
level is 0.5V
P
+ 0.6 V. In this situation the input
configurations illustrated in Figs 5 and 6 have to be used.
The capacitor Cb is recommended for stability
improvement. The value may vary between
10 and 100 nF. This capacitor should be placed close to
the IC between pin 12 and pin 13.
Heatsink design
The standard application is stereo headphone
single-ended with a 32
load impedance to buffer
(see Fig.9). The headphone amplifier can deliver a peak
output current of 150 mA into the load.
For the DIP16 envelope R
th j-amb
= 52 K/W; the maximum
sine wave power dissipation for T
amb
= 25
°
C is:
25
–
52
For T
amb
= 60
°
C the maximum total power dissipation is:
60
–
52
For the SO16 envelope R
th j-amb
= 105 K/W; the maximum
sinewave power dissipation for T
amb
= 25
°
C is:
25
–
105
For T
amb
= 60
°
C the maximum total power dissipation is:
60
–
105
2.4 W
150
=
1.7 W
150
=
1.2 W
150
=
0.85 W
150
=
Test conditions
T
amb
= 25
°
C; unless otherwise specified: V
P
= 3 V,
f = 1 kHz, R
L
= 32
, Gain = 26 dB, low input mode,
band-pass filter: 22 Hz to 30 kHz. The total harmonic
distortion as a function of frequency was measured with
low-pass filter of 80 kHz. The quiescent current has been
measured without any load impedance.
In applications with coupling capacitors towards the load,
an electrolytic capacitor has to be connected to pin 4
(SVRR).
The graphs for the single-ended application have been
measured with the application illustrated in Fig.9; input
configuration for input mode low (Fig.4) and input
configuration for input mode high (Fig.6).
The graphs for the BTL application ‘input mode low’
have been measured with the application circuit
illustrated in Fig.11 and the input configuration
illustrated in Fig.4.
The graphs for the line-driver application have been
measured with the application circuit illustrated in Fig.13
and the input configuration illustrated in Fig.6; input
mode high.
Input configurations
The IC can be applied in two ways, ‘input mode low’ and
‘input mode high’. This can be selected by the input mode
at pin 8:
1.
Input mode low: pin 8 floating:
The DC level of the input pins has to be between 0 V
and (V
P
1.8 V). A DC path to ground is needed.
The maximum output voltage is approximately
2.1 V (RMS). Input configurations illustrated in
Figs 3 and 4 should be used.
2.
Input mode high: pin 8 is connected to V
P
:
This mode is intended for supply voltages >6 V. It can
deliver a maximum output voltage of approximately
6 V (RMS) at THD = 0.5%. The DC voltage level of the
input pins is (0.5V
P
+ 0.6 V). Coupling capacitors are
necessary. Input configurations illustrated in
Figs 5 and 6 should be used.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA8559T 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low-voltage stereo headphone amplifier
TDA8559T/N1 制造商:NXP Semiconductors 功能描述:AMP STEREO HEADPHONE SMD SO-16
TDA8559T/N1,512 功能描述:音頻放大器 HEADPHONE AMP LV 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
TDA8559T/N1,518 功能描述:音頻放大器 LOW VOLTAGE STEREO HEADPHN AMP 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
TDA8559TD 功能描述:音頻放大器 HEADPHONE AMP LV 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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