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参数资料
| 型号： | TDA7445D |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO28 |
| 封装： | SO-28 |
| 文件页数： | 2/14页 |
| 文件大小： | 194K |
| 代理商： | TDA7445D |
the PROLOGIC value, the Pink Noise is any-
way OFF.
The DELAY register contains the delay in ms
for the surround between 0 and following val-
ues (grater values are undefined):
Frequency
Max value
32kHz
53ms
44.1kHz
38ms
48kHz
35ms
The default is 20ms for all frequencies.
FUNCTIONAL DESCRIPTION
Basically
the
TDA7445
chip
performs
the
ProLogic decoding from a two inputs signal to a
four outputs signal. The internal resolution is 20
bits, only 16 bit are used by the ADC/DAC but all
the resolutions can be accessed using the I
2S in-
terface.
The following table lists all I2C registers (already
described) that affect the TDA7445 application
behaviour, for each application function, the con-
cerned registers are shown with their "logical" val-
ues.
Function
Register Name
Register Values
Function
selection
SOURCE
ANALOG
DIGITAL
Function
Selection
PROCESS
PRO_ONLY
PRO_VMAX
PRO_TRUSURR.
SRS_3D
SRS_MONO
NO_PROCESS
REVERB
DELAY
CHORUS
FLANGER
LOUDNESS
LOUDNESS_ON
LOUDNESS_OFF
ProLogic
AUDIO_FREQ
32kHz
44.1kHz
48kHz
MODE
PHANTOM_CENTER
NO_SURROUND
SPLIT_SURROUND
AUTOBALANCE AUTOBALANCE_ON
AUTOBALANCE_OFF
WIDE_
SURROUND
WIDE_SURR_ON
WIDE_SURR_OFF
PINK_NOISE
PINK_NOISE_ON
PINK_NOISE_OFF
DELAY
delay value (ms)
Loudness
AUDIO_FREQ
32kHz
44.1kHz
48kHz
Volume
Control
AUDIO_FREQ
32kHz
44.1kHz
48kHz
VOLUME_L
MUTED
volume value (dB)
VOLUME_R
VOLUME_C
VOLUME_S
AUDIO_MODE 16
18
20
Loudness
LOUDNESS=
LOUDNESS_ON
Volume
Control
2
3
D98AU917
LOUDNESS=
LOUDNESS_OFF
4
3
4
Figure 5. Audio processor algorithms
selection
IN
ProLogic
ProLogic
PROCESS=
PRO_ONLY
Audio
Processor
Loudness
Vol. Control
PROCESS=
NO_PROCESS
2
4
OUT
D98AU932
Figure 4. Application flow.
TDA7445 - TDA7445D
10/14
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PDF描述 |
|---|---|
| TDA7445 | SPECIALTY CONSUMER CIRCUIT, PDIP28 |
| TDA7448 | 6 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO20 |
| TDA744813TR | 6 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO20 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA7448 | 功能描述:音频放大器 6 Ch Volume CNTRL 0 to -79dB 1.0dB CNT 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 |
| TDA7448_04 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:6 CHANNEL VOLUME CONTROLLER |
| TDA744813TR | 功能描述:音频放大器 6 Ch Volume CNTRL 0 to -79dB 1.0dB CNT 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 |
| TDA7448-EVB | 功能描述:音频 IC 开发工具 Eval Brd for TDA7448 RoHS:否 制造商:Texas Instruments 产品:Evaluation Kits 类型:Audio Amplifiers 工具用于评估:TAS5614L 工作电源电压:12 V to 38 V |
| TDA7449 | 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 |
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