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参数资料
| 型号： | TDA7449 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频控制 |
| 英文描述： | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDIP20 |
| 封装： | DIP-20 |
| 文件页数： | 14/19页 |
| 文件大小： | 198K |
| 代理商： | TDA7449 |
TDA7449
4/19
Note: 1. The device is functionally good at Vs = 5V. a step down, on Vs, to 4V does’t reset the device.
2. BASS and TREBLE response: The center frequency and the response quality can be chosen by the external circuitry.
SPEAKER ATTENUATORS
CRANGE
Control Range
76
dB
SSTEP
Step Resolution
0.5
1
1.5
dB
EA
Attenuation Set Error
AV = 0 to -20dB
-1.5
0
1.5
dB
AV = -20 to -56dB
-2
0
2
dB
VDC
DC Step
adjacent attenuation steps
0
3
mV
Amute
Mute Attenuation
80
100
dB
AUDIO OUTPUTS
VCLIP
Clipping Level
d = 0.3%
2.1
2.6
VRMS
RL
Output Load Resistance
2
K
RO
Output Impedance
10
40
70
W
VDC
DC Voltage Level
3.8
V
GENERAL
ENO
Output Noise
All gains = 0dB;
BW = 20Hz to 20KHz flat
515
V
Et
Total Tracking Error
AV = 0 to -24dB
0
1
dB
AV = -24 to -47dB
0
2
dB
S/N
Signal to Noise Ratio
All gains 0dB; VO = 1VRMS ;
106
dB
SC
Channel Separation Left/Right
80
100
dB
d
Distortion
AV = 0; VI = 1VRMS ;
0.01
0.08
%
BUS INPUT
VIL
Input Low Voltage
1
V
VIH
Input High Voltage
3
V
IIN
Input Current
VIN = 0.4V
-5
5
A
VO
Output Voltage SDA
Acknowledge
IO = 1.6mA
0.4
0.8
V
Table 5. Electrical Characteristcs (continued)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA7449_04 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR |
| TDA7449D | 制造商:STMicroelectronics 功能描述: |
| TDA7449D13TR | 功能描述:音频 DSP Audio Tone CTRL 2 Stereo Inputs 1 dB RoHS:否 制造商:Texas Instruments 工作电源电压: 电源电流: 工作温度范围: 安装风格: 封装 / 箱体: 封装:Tube |
| TDA7449L | 功能描述:音频 DSP Tone Control Digital RoHS:否 制造商:Texas Instruments 工作电源电压: 电源电流: 工作温度范围: 安装风格: 封装 / 箱体: 封装:Tube |
| TDA7449L_04 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:LOW COST DIGITALLY CONTROLLED AUDIO PROCESSOR |
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