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| 型號： | AS1703-T |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1.6W Single-Channel Audio Power Amplifiers |
| 中文描述： | 1.6 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO10 |
| 封裝： | 3 X 3 MM, 0.80 MM HEIGHT, MSOP-10 |
| 文件頁數(shù)： | 5/13頁 |
| 文件大小： | 187K |
| 代理商： | AS1703-T |
www.austriamicrosystems.com
Revision 1.01
5 - 13
AS1702, AS1703, AS1704, AS1705
Data Sheet
austria
micro
systems
Bias
6 Detailed Description
The AS1702, AS1703, AS1704, and AS1705 are 1.6W high output-current audio amplifiers (configured as BTL ampli-
fiers), and contain integrated low-power shutdown and click- and pop-suppression circuitry. Two inputs (SHDM and
SHDN) allow shutdown mode to be configured as active-high or active-low (see Section 6.2 Shutdown Mode on
page 5).
Each device has either adjustable or fixed gains (0dB, 3dB, 6dB) (see Section 9 Ordering Information on page 12).
6.1 Bias
The devices operate from a single 2.7 to 5.5V supply and contain an internally generated, common-mode bias voltage
of:
V
CC
/2
referenced to ground. Bias provides click-and-pop suppression and sets the DC bias level for the audio outputs. Select
the value of the bias bypass capacitor as described in Section 7.4.3 BIAS Capacitor on page 9.
(EQ 1)
Note:
Do not connect external loads to BIAS as this can adversely affect overall device performance.
6.2 Shutdown Mode
All devices implement a 100nA, low-power shutdown circuit which reduces quiescent current consumption. As shut-
down mode commences, the bias circuitry is automatically disabled, the device outputs go high impedance, and bias is
driven to GND.
The SHDM input controls the polarity of SHDN:
!
Drive SHDM high for an active-low SHDN input.
!
Drive SHDM low for an active-high SHDN input.
6.3 Click-and-Pop Suppression
During power-up, the device common-mode bias voltage (V
BIAS
(page 3)) ramps to the DC bias point. When entering
shutdown, the device outputs are driven high impedance to 100k
between both outputs minimizing the energy
present in the audio band, thus preventing clicks and pops.
Table 4. Shutdown Mode Selection Configurations
SHDM
SHDN
0
0
0
1
1
0
1
1
Mode
Shutdown Mode Enabled
Normal Operation Enabled
Normal Operation Enabled
Shutdown Mode Enabled
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AS1704-T | 1.6W Single-Channel Audio Power Amplifiers |
| AS1705 | 1.6W Single-Channel Audio Power Amplifiers |
| AS1705-T | ECONOLINE: REC3-S_DR/H1 - 3W DIP Package- 1kVDC Isolation- Regulated Output- UL94V-0 Package Material- Continuous Short Circiut Protection- Internal SMD design- 100% Burned In- Efficiency to 75% |
| AS1710A-ASCT | Single, 100mA, 10MHz, 10V/us; Package Type: SC70-6; Shutdown: Yes |
| AS1710B-ASCT | Single, 100mA, 10MHz, 10V/us; Package Type: SC70-5 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AS1703V | 功能描述:IC AMP AUDIO MONO 1.8W 10-DFN RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:- 類型:AB 類 輸出類型:2 通道（立體聲） 在某負載時最大輸出功率 x 通道數(shù)量:- 電源電壓:4 V ~ 18 V 特點:- 安裝類型:通孔 供應(yīng)商設(shè)備封裝:8-DIP 封裝/外殼:8-DIP（0.300"，7.62mm） 包裝:管件 |
| AS1703V-T | 功能描述:IC AMP AUD 1.8W 0DB GAIN 10-DFN RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:DirectDrive® 類型:D 類 輸出類型:1-通道（單聲道），帶立體聲耳機 在某負載時最大輸出功率 x 通道數(shù)量:930mW x 1 @ 8 歐姆; 40mW x 2 @ 16 歐姆 電源電壓:2.7 V ~ 5.5 V 特點:消除爆音，差分輸入，I²C，靜音，關(guān)閉，音量控制 安裝類型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR) 其它名稱:MAX97000EWA+T-ND |
| AS1704 | 功能描述:音頻放大器 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 |
| AS1704-T | 功能描述:IC AMP AUD 1.8W 3DB GAIN 10-MSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:DirectDrive® 類型:D 類 輸出類型:1-通道（單聲道），帶立體聲耳機 在某負載時最大輸出功率 x 通道數(shù)量:930mW x 1 @ 8 歐姆; 40mW x 2 @ 16 歐姆 電源電壓:2.7 V ~ 5.5 V 特點:消除爆音，差分輸入，I²C，靜音，關(guān)閉，音量控制 安裝類型:表面貼裝 供應(yīng)商設(shè)備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR) 其它名稱:MAX97000EWA+T-ND |
| AS1704V | 功能描述:IC AMP AUDIO MONO 1.8W 10-DFN RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:- 類型:AB 類 輸出類型:2 通道（立體聲） 在某負載時最大輸出功率 x 通道數(shù)量:- 電源電壓:4 V ~ 18 V 特點:- 安裝類型:通孔 供應(yīng)商設(shè)備封裝:8-DIP 封裝/外殼:8-DIP（0.300"，7.62mm） 包裝:管件 |
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