參數(shù)資料
型號(hào)： SA58632
廠商： NXP Semiconductors N.V.
英文描述： 2 x 2.2 W BTL audio amplifier
中文描述： 2 × 2.2糯橋接音頻放大器
文件頁(yè)數(shù)： 5/26頁(yè)
文件大?。?/td> 174K
代理商： SA58632
SA58632_1
Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet
Rev. 01 — 27 June 2006
5 of 26
Philips Semiconductors
SA58632
2
×
2.2 W BTL audio amplifier
8.
Functional description
The SA58632 is a two-channel BTL audio amplifier capable of delivering 2
×
1.5 W output
power to an 8
load at THD+N = 10 % using a 6 V power supply. It is also capable of
delivering 2
×
2.2 W output power to an 8
load at THD+N = 10 % using a 9 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 of 6 dB to 30 dB by external feedback resistors.
8.1 Power amplifier
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 an NPN
power transistor. The total voltage loss is < 1 V. With a supply voltage of 6 V and an 8
loudspeaker, an output power of 1.5 W can be delivered to the load, and with a 9 V supply
voltage and an 8
loudspeaker an output power of 2.2 W can be delivered.
8.2 Mode select pin (MODE)
The device is in Standby mode (with a very low current consumption) if the voltage at the
MODE pin is greater than V
CC
0.5 V, or if this pin is floating. At a MODE voltage in the
range between 1.5 V and V
CC
1.5 V the amplifier is in a mute condition. The mute
condition is useful to suppress plop noise at the output, caused by charging of the input
capacitor. The device is in Active mode if the MODE pin is grounded or less than 0.5 V
(see
Figure 6
).
8.3 BTL/SE output configuration
To invoke the BTL configuration (see
Figure 3
), the BTL/SE pin is taken to logic HIGH or
not connected. The output differentially drives the speakers, so there is no need for
coupling capacitors. The headphone can be connected to the amplifier negative outputs
using a coupling capacitor for each channel. The headphone common ground is
connected to the amplifier ground.
To invoke the Single-Ended (SE) configuration (see
Figure 15
), the BTL/SE pin is taken to
logic LOW or connected to ground. The positive outputs are muted with a DC level of
0.5V
CC
. Using a coupling capacitor for each channel, speakers can be connected to the
amplifier negative outputs. The speaker common ground is connected to the amplifier
ground. Headphones can be connected to the negative outputs without using output
coupling capacitors. The headphone common ground pin is connected to one of the
amplifier positive output pins.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SA58632BS 制造商:NXP Semiconductors 功能描述:IC AMP AUDIO 2.2W STER 20HVQFN 制造商:NXP Semiconductors 功能描述:IC, AMP, AUDIO, 2.2W, STER, 20HVQFN
SA58632BS,118 功能描述:音頻放大器 2X2.2W BTL PWR AMP RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)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
SA58632BS118 制造商:NXP Semiconductors 功能描述:IC AUDIO AMP AB 2.2W SON-20
SA58632BS-T 功能描述:音頻放大器 2X2.2W BTL PWR AMP RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)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
SA58635UK,027 功能描述:音頻放大器 2x25mW cls-G stereo headphone driver RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)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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