参数资料
型号: TDA749213TR
厂商: STMICROELECTRONICS
元件分类: 音频/视频放大
英文描述: 50 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO36
封装: ROHS COMPLIANT, SSOP-36
文件页数: 17/32页
文件大小: 599K
代理商: TDA749213TR
Applications information
TDA7492
Doc ID 14926 Rev 4
6.2
Gain setting
The gain of the TDA7492 is set by the two inputs, GAIN0 (pin 30) and GAIN1 (pin31).
Internally, the gain is set by changing the feedback resistors of the amplifier.
6.3
Input resistance and capacitance
The input impedance is set by an internal resistor Ri = 60 k
(typical). An input capacitor
(Ci) is required to couple the AC input signal.
The equivalent circuit and frequency response of the input components are shown in
Figure 31. For Ci = 470 nF the high-pass filter cut-off frequency is below 20 Hz:
fc = 1 / (2 *
π * Ri * Ci)
Figure 31.
Device input circuit and frequency response
Table 7.
Gain settings
GAIN0
GAIN1
Nominal gain, Gv (dB)
0021.6
0127.6
1031.1
1133.6
Ri
Input
Ci
Rf
Input
pin
signal
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TDA7492 50 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO36
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TDA7492MV13TR 功能描述:音频放大器 50W Mono BTL Class D Audio Amp EPD PKG RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel
TDA7492P 功能描述:音频放大器 50W Mono BTL Class D 10 to 26V 4Select dB RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel
TDA7492P13TR 功能描述:音频放大器 50W Mono BTL Class D 10 to 26V 4Select dB RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel