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參數(shù)資料
| 型號： | TDA7445 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP28 |
| 封裝： | DIP-28 |
| 文件頁數(shù)： | 14/14頁 |
| 文件大?。?/td> | 194K |
| 代理商： | TDA7445 |
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
相關PDF資料 |
PDF描述 |
|---|---|
| TDA7448 | 6 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO20 |
| TDA744813TR | 6 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO20 |
| TDA7449L | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDIP20 |
| TDA7449 | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDIP20 |
| TDA7449D | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO20 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7448 | 功能描述:音頻放大器 6 Ch Volume CNTRL 0 to -79dB 1.0dB CNT RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA7448_04 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:6 CHANNEL VOLUME CONTROLLER |
| TDA744813TR | 功能描述:音頻放大器 6 Ch Volume CNTRL 0 to -79dB 1.0dB CNT RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA7448-EVB | 功能描述:音頻 IC 開發(fā)工具 Eval Brd for TDA7448 RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| TDA7449 | 功能描述:音頻 DSP Tone Control Digital RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風格: 封裝 / 箱體: 封裝:Tube |
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