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參數資料
| 型號： | TDA8566 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 2 x 25 W BTL stereo car radio power amplifier with differential inputs and diagnostic outputs |
| 中文描述： | 2 × 25瓦橋接立體聲汽車收音機的差分輸入和輸出功率放大器診斷 |
| 文件頁數： | 4/12頁 |
| 文件大?。?/td> | 110K |
| 代理商： | TDA8566 |
1998 Sep 23
4
Philips Semiconductors
Product specification
2
×
25 W BTL stereo car radio power amplifier
with differential inputs and diagnostic outputs
TDA8566Q
PINNING
SYMBOL
PIN
DESCRIPTION
IN1+
IN1
SGND
CLIP
V
P1
OUT1+
PGND1
1
2
3
4
5
6
7
channel 1 input positive
channel 1 input negative
small signal ground
clip-detection
supply voltage 1
channel 1 speaker output positive
channel 1 negative power supply
(ground)
channel 1 speaker output negative
not connected
channel 2 speaker output positive
channel 2 negative power supply
(ground)
channel 2 speaker output negative
supply voltage 2
mode select switch
(stand-by/mute/operating)
short-circuit and temperature
pre-warning diagnostic
channel 2 input positive
channel 2 input negative
OUT1
n.c.
OUT2+
PGND2
8
9
10
11
OUT2
V
P2
MODE
12
13
14
DIAG
15
IN2+
IN2
16
17
Fig.2 Pin configuration.
handbook, halfpage
TDA8566Q
MGD101
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
IN1
+
IN1
SGND
CLIP
VP1
OUT1
+
PGND1
OUT1
n.c.
IN2
IN2
+
DIAG
MODE
VP2
OUT2
PGND2
OUT2
+
FUNCTIONAL DESCRIPTION
The TDA8566Q contains two identical amplifiers and can
be used for BTL applications. The gain of each amplifier is
fixed at 26 dB. Special features of this device are:
1.
Mode select switch
2.
Clip detection
3.
Short-circuit diagnostic
4.
Temperature pre-warning
5.
Open-collector outputs
6.
Differential inputs.
Mode select switch (pin 14)
Standby: low supply current (< 100
μ
A)
Mute: input signal suppressed
Operating: normal on condition.
Since this pin has a very low input current (< 40
μ
A), a low
cost supply switch can be applied. To avoid switch-on
plops, it is advisable to keep the amplifier in the mute mode
for a period of
≥
150 ms (charging the input capacitors at
pins 1, 2, 16 and 17). This can be realized by
microcontroller control or by an external timing circuit
(see Fig.7).
Clip detection (pin 4)
When clipping occurs at one or more output stages, the
dynamic distortion detector becomes active and pin 4
goes low. This information can be used to drive a sound
processor or DC volume control to attenuate the input
signal and so limit the level of distortion. The output level
of pin 4 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 4 will remain at a high level. The clip detection
waveforms are illustrated in Fig.3.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TDA8566Q | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2 x 25 W BTL stereo car radio power amplifier with differential inputs and diagnostic outputs |
| TDA8566Q/N2,112 | 功能描述:音頻放大器 CARRADIO POWER AMPLIFIERS RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA8566Q/N2C | 功能描述:音頻放大器 2X25W BTL STEREO RADIO PWR AMP RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA8566Q/N2C,112 | 功能描述:音頻放大器 2X25W BTL STEREO RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA8566Q/N2S,112 | 功能描述:音頻放大器 BTL CAR RADIO PWRAMP DIFF INPT DIAG OUTPT RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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