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数据: TPA3251D2 175W 立体声/350W 单声道 PurePath™ 超高清模拟输入 D 类放大器 数据表 (Rev. C)
TPA3251D2是一款高性能D类功率放大器,它具有D类效率并且能够带来真正的高端音质。该器件特有高级集成反馈设计和专有高速栅极驱动器错误校正功能(PurePath™超高清)。该技术可使器件在整个音频频带内保持超低失真,同时展现完美音质。该器件最多可驱动2个175W /4Ω负载和2个220W /3Ω负载,并且特有一个2 VRMS模拟输入接口,支持与高性能DAC(例如,TI的PCM5242)的无缝连接。除了出色的音频性能外,TPA3251D2还兼具高功率效率和超低功率级空闲损耗(1W以下)两大优点。这可以利用60mΩMOSFET以及优化型栅极驱动器方案来实现,该方案相比传统的分立实现方案可显着降低空闲损耗。
所有商标均为他们各自的主人。
Audio Input Type |
Architecture |
Speaker Channels (Max) |
Power Stage Supply (Min) (V) |
Power Stage Supply (Max) (V) |
Output Power (W) |
Load (Min) (ohms) |
SNR (dB) |
THD + N @ 1 kHz (%) |
Iq (Typ) (mA) |
Control Interface |
Closed/Open Loop |
Analog Supply (V) (Min) |
Analog Supply (V) (Max) |
Power to Parallel Bridge Tied Load (Max) (W) |
PSRR (dB) |
Operating Temperature Range (C) |
Rating |
TPA3251 | TPA3220 | TPA3221 | TPA3244 | TPA3245 | TPA3250 | TPA3255 |
---|---|---|---|---|---|---|
Analog Input | Analog Input | Analog Input | Analog Input | Analog Input | Analog Input | Analog Input |
Class-D | Class-D | Class-D | Class-D | Class-D | Class-D | Class-D |
4 | Stereo | Stereo | 4 | 4 | 4 | 4 |
12 | 7 | 7 | 12 | 12 | 12 | 18 |
36 | 30 | 30 | 30 | 30 | 36 | 53.5 |
175 | 100 | 100 | 100 | 115 | 130 | 315 |
1.5 | 1 | 1 | 1.5 | 1.5 | 1.5 | 4 |
111 | 108 | 108 | 110 | 112 | 110 | 112 |
0.005 | 0.02 | 0.02 | 0.005 | 0.005 | 0.005 | 0.006 |
12.5 | 15 | 15 | 15 | 12.5 | 24 | |
Hardware | Hardware | Hardware | Hardware | Hardware | Hardware | Hardware |
Closed | Closed | Closed | Closed | Closed | Closed | Closed |
10.8 | 5 | 5 | 10.8 | 10.8 | 10.8 | 10.8 |
13.2 | 30 | 30 | 13.2 | 13.2 | 13.2 | 13.2 |
355 | 200 | 200 | 160 | 230 | 189 | 600 |
80 | 60 | 60 | 60 | 60 | 60 | 80 |
0 to 70 | -40 to 85 | -40 to 85 | 0 to 70 | 0 to 70 | 0 to 70 | 0 to 70 |
Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |