- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄16847 > TPA3005D2EVM (Texas Instruments)EVAL MODULE FOR TPA3005D2 PDF資料下載
參數(shù)資料
| 型號： | TPA3005D2EVM |
| 廠商： | Texas Instruments |
| 文件頁數(shù)： | 8/31頁 |
| 文件大小： | 0K |
| 描述： | EVAL MODULE FOR TPA3005D2 |
| 標準包裝： | 1 |
| 放大器類型： | D 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： | 6W x 2 @ 8 歐姆 |
| 電源電壓： | 8.5 V ~ 18 V |
| 工作溫度： | -40°C ~ 85°C |
| 板類型： | 完全填充 |
| 已用 IC / 零件： | TPA3005D2 |
| 已供物品： | 板 |
| 產(chǎn)品目錄頁面： | 877 (CN2011-ZH PDF) |
| 相關(guān)產(chǎn)品： | TPA3005D2PHPRG4-ND - IC AMP AUDIO PWR 6W STER 48TQFP TPA3005D2PHPG4-ND - IC AMP AUDIO PWR 6W STER 48TQFP TPA3005D2PHP-ND - IC AMP AUDIO PWR 6W STER 48TQFP 296-17058-6-ND - IC AMP AUDIO PWR 6W STER 48TQFP 296-17058-1-ND - IC AMP AUDIO PWR 6W STER 48TQFP 296-17058-2-ND - IC AMP AUDIO PWR 6W STER 48TQFP |
| 其它名稱： | 296-18924 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁當前第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁
fc +
1
2 p Z
i
C
i
3 dB
fc
C
i +
1
2p Z
i fc
SLOS427A – MAY 2004 – REVISED AUGUST 2010
www.ti.com
INPUT CAPACITOR, CI
In the typical application an input capacitor (Ci) is required to allow the amplifier to bias the input signal to the
proper dc level for optimum operation. In this case, Ci and the input impedance of the amplifier (Zi) form a
high-pass filter with the corner frequency determined in Equation 6.
(6)
The value of Ci is important, as it directly affects the bass (low frequency) performance of the circuit. Consider
the example where Zi is 137 k and the specification calls for a flat bass response down to 20 Hz. Equation 6 is
reconfigured as Equation 7.
(7)
In this example, Ci is 58 nF, so one would likely choose a value of 0.1 F as this value is commonly used. If the
gain is known and is constant, use Zi from Table 2 to calculate Ci. A further consideration for this capacitor is the
leakage path from the input source through the input network (Ci) and the feedback network to the load. This
leakage current creates a dc offset voltage at the input to the amplifier that reduces useful headroom, especially
in high gain applications. For this reason, a low-leakage tantalum or ceramic capacitor is the best choice. When
polarized capacitors are used, the positive side of the capacitor should face the amplifier input in most
applications as the dc level there is held at 2.5 V, which is likely higher than the source dc level. Note that it is
important to confirm the capacitor polarity in the application.
For the best pop performance, CI should be less than or equal to 1F.
Power Supply Decoupling,CS
The TPA3005D2 is a high-performance CMOS audio amplifier that requires adequate power supply decoupling
to ensure the output total harmonic distortion (THD) is as low as possible. Power supply decoupling also
prevents oscillations for long lead lengths between the amplifier and the speaker. The optimum decoupling is
achieved by using two capacitors of different types that target different types of noise on the power supply leads.
For higher frequency transients, spikes, or digital hash on the line, a good low equivalent-series-resistance (ESR)
ceramic capacitor, typically 0.1 F placed as close as possible to the device VCC lead works best. For filtering
lower-frequency noise signals, a larger aluminum electrolytic capacitor of 10 F or greater placed near the audio
power amplifier is recommended. The 10-F capacitor also serves as local storage capacitor for supplying
current during large signal transients on the amplifier outputs.
BSN and BSP Capacitors
The full H-bridge output stages use only NMOS transistors. Therefore, they require bootstrap capacitors for the
high side of each output to turn on correctly. A 220-nF ceramic capacitor, rated for at least 25 V, must be
connected from each output to its corresponding bootstrap input. Specifically, one 220-nF capacitor must be
connected from xOUTP to xBSP, and one 220-nF capacitor must be connected from xOUTN to xBSN. (See the
application circuit diagram in Figure 15).
The bootstrap capacitors connected between the BSxx pins and corresponding output function as a floating
power supply for the high-side N-channel power MOSFET gate drive circuitry. During each high-side switching
cycle, the bootstrap capacitors hold the gate-to-source voltage high enough to keep the high-side MOSFETs
turned on.
16
Copyright 2004–2010, Texas Instruments Incorporated
Product Folder Link(s): TPA3005D2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ESM10DTMD-S189 | CONN EDGECARD 20POS R/A .156 SLD |
| H0PPH-1406M | DIP CABLE - HDP14H/AE14M/HDP14H |
| GBC12DREH-S93 | CONN EDGECARD 24POS .100 EYELET |
| EGM10DTMH-S189 | CONN EDGECARD 20POS R/A .156 SLD |
| ESM10DTMH-S189 | CONN EDGECARD 20POS R/A .156 SLD |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPA3005D2PHP | 功能描述:音頻放大器 Stereo Med Power Filter-Free Class-D 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA3005D2PHPG4 | 功能描述:音頻放大器 Stereo Med Power Filter-Free Class-D 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA3005D2PHPR | 功能描述:音頻放大器 Stereo Med Power Filter-Free Class-D 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA3005D2PHPRG4 | 功能描述:音頻放大器 Stereo Med Power Filter-Free Class-D 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA3007D1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:6.5-W MONO CLASS-D AUDIO POWER AMPLIFIER |
發(fā)布緊急采購，3分鐘左右您將得到回復。