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参数资料
| 型号： | TDA7444 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP28 |
| 封装： | DIP-28 |
| 文件页数： | 3/18页 |
| 文件大小： | 211K |
| 代理商： | TDA7444 |
FUNCTIONAL DESCRIPTION
Basically
the
TDA7444
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 TDA7444 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)
SRS3Dstereo AUDIO_FREQ
32kHz
44.1kHz
48kHz
CENTER
MUTED
centre value (dB)
SPACE
MUTED
space value (dB)
TruSurround
AUDIO_freq
32kHz
44.1kHz
48kHz
VMax
SRSmono
Reverb
DELAY
delay value (ms)
DELAY_RATIO percentage value
Delay
DELAY
delay value (ms)
DELAY_RATIO percentage value
Chorus
DELAY
delay value (ms)
DELAY_RATIO percentage value
DELAY_PERIOD delay value (ms)
Flanger
DELAY
delay value (ms)
DELAY_RATIO percentage value
DELAY_PERIOD delay value (ms)
Equalizer
AUDIO_FREQ
32kHz
44.1kHz
48kHz
BASS_L
level value (dB)
BASS_R
level value (dB)
MIDDLE_L
level value (dB)
MIDDLE_R
level value (dB)
TREBLE_L
level value (dB)
TREBLE_R
level value (dB)
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
Figure 4 outlines how TDA7444 macro-functions
can be combined depending on the PROCESS
register settings: channels (Left, Right, Centre,
Surround) processed by each function can be 2
(L, R), 3 (L, R, C) or 4.
Two input signals are originated from analog
or digital source at 32KHz, 44.1KHz or 48KHz.
The first function selection is operated on the
PROCESS register, switching values can acti-
vate the following functions:
- ProLogic (PRO_ONLY)
- ProLogic and VMax (PRO_VMAX)
- ProLogic and TruSurround
(PRO_TRUSURROUND)
- SRS 3D Stereo (SRS_3D)
- SRS 3D Mono (SRS_MONO)
- none (NO_PROCESS)
TDA7444 - TDA7444D
11/18
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相关代理商/技术参数 |
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|---|---|
| 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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