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參數(shù)資料
| 型號： | TDA8542AT-T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1.5 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO20 |
| 文件頁數(shù)： | 16/20頁 |
| 文件大小： | 158K |
| 代理商： | TDA8542AT-T |
1998 Mar 25
5
Philips Semiconductors
Product specication
2
× 1.5 W BTL audio amplier
TDA8542AT
FUNCTIONAL DESCRIPTION
The TDA8542AT is a 2
× 1.5 W BTL audio power amplifier
capable of delivering 2
× 1.5 W output power to an 8
load at THD = 10% using a 6 V power supply. Using the
MODE pin the device can be switched to standby and
mute condition. The device is protected by an internal
thermal shutdown protection mechanism. The gain can be
set within a range from 6 to 30 dB by external feedback
resistors.
Power amplier
The power amplifier is a Bridge-Tied Load (BTL) amplifier
with a complementary PNP-NPN output stage.
The voltage loss on the positive supply line is the
saturation voltage of a PNP power transistor, on the
negative side the saturation voltage of a NPN power
transistor. The total voltage loss is <1 V and with a 6 V
supply voltage and an 8
loudspeaker an output power of
1.5 W can be delivered.
Mode select pin
The device is in the standby mode (with a very low current
consumption) if the voltage at the MODE pin is
>(VCC 0.5 V), or if this pin is floating. At a MODE voltage
level of less than 0.5 V the amplifier is fully operational.
In the range between 1.5 V and VCC 1.5 V the amplifier
is in mute condition. The mute condition is useful to
suppress plop noise at the output caused by charging of
the input capacitor.
Headphone connection
A headphone can be connected to the amplifier using two
coupling capacitors for each channel. The common GND
pin of the headphone is connected to the ground of the
amplifier (see Fig.14). In this case the BTL/SE pin must be
either on a logic HIGH level or not connected at all.
The two coupling capacitors can be omitted if it is allowed
to connect the common GND pin of the headphone jack
not to ground, but to a voltage level of 1
2VCC (see Fig.14).
In this case the BTL/SE pin must be either on a logic LOW
level or connected to ground. If the BTL/SE pin is on a
LOW level, the power amplifier for the positive
loudspeaker terminal is always in mute condition.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
QUALITY SPECIFICATION
In accordance with
“SNW-FQ-611-E”.
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
VCC
supply voltage
operating
0.3
+18
V
VI
input voltage
0.3
VCC + 0.3
V
IORM
repetitive peak output current
1A
Tstg
storage temperature
non-operating
55
+150
°C
Tamb
operating ambient temperature
40
+85
°C
Vsc
AC and DC short-circuit safe voltage
10
V
Ptot
total power dissipation
2.2
W
SYMBOL
PARAMETER
CONDITIONS
VALUE
UNIT
Rth(j-a)
thermal resistance from junction to ambient
in free air
60
K/W
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TDA8542N | 1.2 W, 2 CHANNEL, AUDIO AMPLIFIER, PDIP16 |
| TDA8547T-T | 1.2 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO16 |
| TDA8547TS-T | 1.2 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO20 |
| TDA8551N | 1 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDIP8 |
| TDA8551T-T | 1 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA8542T | 制造商:NXP Semiconductors 功能描述: 制造商:NXP Semiconductors 功能描述:Audio Amplifier Circuit, Dual, 16 Pin, Plastic, SOP |
| TDA8542TS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2 x 0.7 W BTL audio amplifier |
| TDA8542TS/N1 | 制造商:NXP Semiconductors 功能描述:AMP AUDIO PWR 1.2W AB 20SSOP 制造商:NXP Semiconductors 功能描述:AMP, AUDIO, PWR, 1.2W, AB, 20SSOP 制造商:NXP Semiconductors 功能描述:AMP, AUDIO, PWR, 1.2W, AB, 20SSOP; Amplifier Class:AB; No. of Channels:2; Output Power:1.2W; Supply Voltage Range:2.2V to 18V; Amplifier Case Style:SSOP; No. of Pins:20; Load Impedance:16ohm; Operating Temperature Min:-40C; ;RoHS Compliant: Yes |
| TDA8542TS/N1,112 | 功能描述:音頻放大器 2X1.5W BTL POWER 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 |
| TDA8542TS/N1,118 | 功能描述:音頻放大器 2X1.5W BTL PWR 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 |
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