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參數(shù)資料
| 型號： | TDA8922B |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 2 X 50 W class-D power amplifier |
| 中文描述： | 2 × 50瓦D類功率放大器 |
| 文件頁數(shù)： | 10/32頁 |
| 文件大?。?/td> | 201K |
| 代理商： | TDA8922B |
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9397 750 13357
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Preliminary data sheet
Rev. 01 — 1 October 2004
10 of 32
Philips Semiconductors
TDA8922B
2
×
50 W class-D power amplifier
[1]
Hysteresis of 20 degrees will influence restart timing depending on heatsink size.
[2]
Only complete shut-down of amplifier if short-circuit impedance is below threshold of 1
. In all other cases
current limiting: resulting in clipping output signal.
[3]
Fault condition detected during (every) transition between standby-to-mute and during restart after
activation of OCP (short to one of the supply lines).
8.4 Differential audio inputs
For a high common mode rejection ratio and a maximum of flexibility in the application, the
audio inputs are fully differential. By connecting the inputs anti-parallel the phase of one of
the channels can be inverted, so that a load can be connected between the two output
filters. In this case the system operates as a mono BTL amplifier and with the same
loudspeaker impedance an approximately four times higher output power can be
obtained.
The input configuration for a mono BTL application is illustrated in
Figure 6
.
In the stereo single-ended configuration it is also recommended to connect the two
differential inputs in anti-phase. This has advantages for the current handling of the power
supply at low signal frequencies.
Table 4:
Protection name
OTP
OCP
WP
UVP
OVP
UBP
Overview protections TDA8922B
Complete shut-down
Y
N
[2]
Y
[3]
Y
Y
Y
Restart directly
Y
[1]
Y
[2]
Y
N
Y
N
Restart every 100 ms
N
[1]
N
[2]
N
Y
N
Y
Fig 6.
Input configuration for mono BTL application.
V
in
IN1P
OUT1
power stage
mbl466
OUT2
SGND
IN1M
IN2P
IN2M
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TDA8922BJ | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2 X 50 W class-D power amplifier |
| TDA8922BJ/N2,112 | 功能描述:音頻放大器 2X50W CLASSD PWR AMP 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 |
| TDA8922BTH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2 X 50 W class-D power amplifier |
| TDA8922BTH/N2,118 | 功能描述:音頻放大器 2X50W CLASSD PWR AMP 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 |
| TDA8922BTH-T | 功能描述:音頻放大器 2X50W CLASSD PWR AMP 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 |
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