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參數(shù)資料
| 型號： | TDA8566TH/N2,512 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 55 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO20 |
| 封裝： | PLASTIC, SOT-418-3, HSOP-20 |
| 文件頁數(shù)： | 18/21頁 |
| 文件大?。?/td> | 129K |
| 代理商： | TDA8566TH/N2,512 |
TDA8566_6
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 06 — 15 October 2007
6 of 21
NXP Semiconductors
TDA8566
2
× 40 W/2 stereo BTL car radio power amplier
7.
Functional description
The TDA8566 contains 2 identical ampliers and can be used for BTL applications. The
gain of each amplier is xed at 26 dB. Special features of this device are:
Mode select switch
Clip detection
Short-circuit diagnostic
Temperature pre-warning
Open-collector diagnostic outputs
Differential inputs
7.1 Mode select switch (pin MODE)
Standby: low supply current
Mute: input signal suppressed
Operating: normal on condition
Since this pin has a very low input current (< 40
A), a low-cost supply switch can be
applied. To avoid switch-on plops, it is advisable to keep the amplier in the mute mode for
a period of
≥ 150 ms (charging the input capacitors at pins IN1+, IN1, IN2+ and IN2).
This can be realized by using a microcontroller or by using an external timing circuit as
illustrated in Figure 8.
7.2 Clip detection (pin CLIP)
When clipping occurs at one or more output stages, the dynamic distortion detector
becomes active and pin CLIP goes LOW. This information can be used to drive a sound
processor or a DC volume control to attenuate the input signal and so limit the level of
distortion. The output level of pin CLIP is independent of the number of channels that are
being clipped. The clip detection circuit is disabled in a short-circuit condition, so if a fault
condition occurs at the outputs, pin CLIP will remain at a HIGH level. The clip detection
waveforms are illustrated in Figure 5.
OUT2+
10
channel 2 output positive
PGND2
11
power ground 2
OUT2
12
channel 2 output negative
VP2
13
supply voltage 2
MODE
14
mode select switch input (standby/mute/operating)
DIAG
15
short-circuit and temperature pre-warning diagnostic output
IN2+
16
channel 2 input positive
IN2
17
channel 2 input negative
Table 4.
Pin description TDA8566Q …continued
Symbol
Pin
Description
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| TDA8567 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:4 x 25 W BTL quad car radio power amplifier |
| TDA8567Q | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:4 x 25 W BTL quad car radio power amplifier |
| TDA8567Q/N3,112 | 功能描述:音頻放大器 4X25W BTL/LOW GAIN 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 |
| TDA8567Q/N3C | 功能描述:音頻放大器 CARRADIO POWER AMPS 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 |
| TDA8567Q/N3C,112 | 功能描述:音頻放大器 CARRADIO POWER AMPS 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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