- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385010 > TPA032D04DCAR (Texas Instruments, Inc.) Dual Audio Amplifier PDF資料下載
參數(shù)資料
| 型號： | TPA032D04DCAR |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 運動控制電子 |
| 英文描述： | Dual Audio Amplifier |
| 中文描述： | 雙音頻放大器 |
| 文件頁數(shù)： | 20/24頁 |
| 文件大?。?/td> | 350K |
| 代理商： | TPA032D04DCAR |
TPA032D04
10-W STEREO CLASS-D AUDIO POWER AMPLIFIER
SLOS203A – DECEMBER 1999 – REVISED MARCH 2000
20
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
crest factor and thermal considerations
A typical music CD requires 12 dB to 15 dB of dynamic headroom to pass the loudest portions without distortion
as compared with the average power output. From the TPA032D04 data sheet, one can see that when the
TPA032D04 is operating from a 12-V supply into a 4-
speaker that 20-W peaks are available. Converting watts
to dB:
P
dB
10Log
P
W
P
ref
10Log
20
1
6 dB
(17)
Subtracting the crest factor restriction to obtain the average listening level without distortion yields:
6.0 dB
6.0 dB
6.0 dB
6.0 dB
6.0 dB
15 dB
12 dB
9 dB
6 dB
3 dB
9 dB (15 dB crest factor)
6 dB (12 dB crest factor)
3 dB (9 dB crest factor)
0 dB (6 dB crest factor)
3 dB (3 dB crest factor)
6.0 dB
18 dB
12 dB (15 dB crest factor)
Converting dB back into watts:
P
W
10
PdB 10
P
ref
630 mW (15 dB crest factor)
1.25 W (12 dB crest factor)
2.5 W (9 dB crest factor)
5 W (6 dB crest factor)
10 W (3 dB crest factor)
(18)
315 mW (18 dB crest factor)
This is valuable information to consider when attempting to estimate the heat dissipation requirements for the
amplifier system. Comparing the absolute worst case, which is 10 W of continuous power output with a 3 dB
crest factor, against 12 dB and 15 dB applications drastically affects maximum ambient temperature ratings for
the system. Using the power dissipation curves for a 12-V, 4-
system, the internal dissipation in the
TPA032D04 and maximum ambient temperatures are shown in Table 3.
相關PDF資料 |
PDF描述 |
|---|---|
| TPA2010D1YEF | 2.5-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER |
| TPA2010D1YZF | 2.5-W MONO FILTER-FREE CLASS-D AUDIO POWER AMPLIFIER |
| TPA4411YZH | Filter Module with Resistor Network |
| TPA4411RTJ | 80-mW CAPLESS STEREO HEADPHONE DRIVER |
| TPA751GQS | 700-mW MONO LOW-VOLTAGE AUDIO POWER AMPLIFIER WITH DIFFERENTIAL INPUTS |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TPA032D04DCARG4 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-W STEREO CLASS-D AUDIO POWER AMPLIFIER |
| TPA032D04EVM | 制造商:Texas Instruments 功能描述:EVAL KIT FOR 10-W STEREO CLS-D AUD PWR AMP - Bulk |
| TPA-10 | 功能描述:保險絲 TELPOWER ALARM FUSE RoHS:否 制造商:Littelfuse 產(chǎn)品:Surface Mount Fuses 電流額定值:0.5 A 電壓額定值:600 V 保險絲類型:Fast Acting 保險絲大小/組:Nano 尺寸:12.1 mm L x 4.5 mm W 安裝風格: 端接類型:SMD/SMT 系列:485 |
| TPA100 | 功能描述:TVS 二極管 - 瞬態(tài)電壓抑制器 100V 50uA Bidirect RoHS:否 制造商:Vishay Semiconductors 極性:Bidirectional 工作電壓: 擊穿電壓:58.9 V 鉗位電壓:77.4 V 峰值浪涌電流:38.8 A 系列: 封裝 / 箱體:DO-214AB 最小工作溫度:- 55 C 最大工作溫度:+ 150 C |
| TPA100RL | 功能描述:TVS 二極管 - 瞬態(tài)電壓抑制器 100V 50uA Bidirect RoHS:否 制造商:Vishay Semiconductors 極性:Bidirectional 工作電壓: 擊穿電壓:58.9 V 鉗位電壓:77.4 V 峰值浪涌電流:38.8 A 系列: 封裝 / 箱體:DO-214AB 最小工作溫度:- 55 C 最大工作溫度:+ 150 C |
發(fā)布緊急采購，3分鐘左右您將得到回復。