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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： | 14/14页 |
| 文件大小： | 194K |
| 代理商： | TDA7445D |
The 4 bit data interface protocol are set following
the table below:
Audio_Mode
Register
Protocol
oh00
MSB first / 32fs / Master
oh04
MSB first / 64fs / Master
oh08
LSB first / 32fs / Master
oh0C
LSB first / 64fs / Master
oh20
MSB first / 32fs / Slave
The
SOURCE
register
selects
the
input
source:
- 0 ANALOG source
- 1 Digital source
Other values set Digital source
The PROCESS register selects the process,
the Xtra Audio processes (Volume control and
Loudness) are available for all the processes.
PROCESS
register
OUTPUTS
0h00
PROLOGIC
other values are undefined
0h09
NO_PROCESS
0
The VOLUME registers set the volume for
each one of the 4 channels, this allow to do a
balance function between the right and left
channels and a fade function between the
front channels and the surround ones.
The volume control add an attenuation from
0dB (no attenuation) to -79dB.
A mute is also available to zero the output sig-
nal.
The following table explain values for the 4
channels.
Volume
Data
MUTED
0h00
-79dB
0h01
-78dB
0h02
...
-1dB
0h4F
0dB
0h50
Undefined
>0h50
The LOUDNESS register enables or disables
the loudness filter on the Right, Left and Cen-
tre channels:
0 Loudness OFF
1 Loudness ON
Other values set Loudness ON
The MODE register sets the Pro Logic mode,
only the 3 low significant bits are used, the oth-
ers must be set to zero.
MODE register
Protocol
0h00
3/1 - default
0h01
3/0 3-stereo
0h02
2/1 phantom center
0h03
2/0 stereo
0h04
3/2 split surround
0h06
2/2 phantom center, split surround
MSB
LSB
210
XXX
XX
0
bit 0:
1 Surround off
0 Surround on
bit 1:
1 Phantom Center on
0 Phantom Center off
bit 2:
1 Split Surround on
0 Split Surround off
Phantom on/off
= set/reset bit 1
Normal
= reset bit 0 e 2
Split
= set bit 2, reset bit 0
No Surround
= se bit 0, reset bit 2
The AUTOBALANCE register enables or dis-
ables the autobalance for Pro Logic:
0 Autobalance ON
1 Autobalance OFF
Other values set Autobalance OFF
The WIDE_SURROUND register enables or
disables the Wide Surround for Pro Logic:
0 Wide Surround ON
1 Wide Surround OFF
Other values set Wide Surround OFF
The PINK_NOISE register enables or disables
the pink noise for Pro Logic:
0 Pink noise OFF
1 Pink noise ON
Other values set Pink noise ON
If the PROCESS register has not been set with
TDA7445 - TDA7445D
9/14
相关PDF资料 |
PDF描述 |
|---|---|
| TDA7445 | SPECIALTY CONSUMER CIRCUIT, PDIP28 |
| TDA7448 | 6 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO20 |
| TDA744813TR | 6 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO20 |
| TDA7449L | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDIP20 |
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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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