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参数资料
| 型号： | TDA7449D |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频控制 |
| 英文描述： | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO20 |
| 封装： | SO-20 |
| 文件页数： | 2/19页 |
| 文件大小： | 198K |
| 代理商： | TDA7449D |
TDA7449
10/19
6.2 Incremental Bus
The TDA7449 receive a start conditions, the correct chip address, a subaddress with the B = 1 incremental
bus): now it is in a loop condition with an autoincrease of the subaddress whereas SUBADDRESS from
"XXX1000" to "XXX1111" of DATA are ignored.
The DATA 1 concern the subaddress sent, and the DATA 2 concern the subaddress sent plus one in the
loop etc, and at the end it receivers the stop condition.
Figure 17.
Table 6. POWER ON RESET CONDITION
7
DATA BYTES
Address = 88 HEX (ADDR:OPEN).
Table 7. FUNCTION SELECTION: First byte (subaddress)
B = 1: INCREMENTAL BUS ACTIVE
B = 0: NO INCREMENTAL BUS
X = DON’T CARE
INPUT SELECTION
IN2
INPUT GAIN
28dB
VOLUME
MUTE
BASS
0dB
TREBLE
2dB
SPEAKER
MUTE
MSB
LSB
SUBADDRESS
D7
D6
D5
D4
D3
D2
D1
D0
X
B
0
INPUT SELECT
X
B
0
1
INPUT GAIN
X
XB0
0
1
0
VOLUME
X
XB0
0
1
NOT ALLOWED
X
XB0
1
0
BASS
X
XB0
1
0
1
TREBLE
X
B
0
1
0
SPEAKER ATTENUATE "R"
X
B
0
1
SPEAKER ATTENUATE "L"
S
1
0
1
0
ACK
DATA
ACK
P
MSB
LSB
MSB
LSB
MSB
LSB
CHIP ADDRESS
D96AU422
X
D3
SUBADDRESS
DATA 1 to DATA n
X
1
D2 D1 D0
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| 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 |
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| TDA7451 | 功能描述:音频放大器 Car Power Amplifier 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 |
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