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参数资料
| 型号： | TDA7404DTR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频控制 |
| 英文描述： | 1 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28 |
| 封装： | SOP-28 |
| 文件页数： | 8/28页 |
| 文件大小： | 521K |
| 代理商： | TDA7404DTR |
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TDA7404D
16/26
The External AC - Coupling is selected in position of four switches controlled by the lower 2bit in the Others
selection. (See table)
Others selection
1.10 Speaker Attenuator
Due to practical aspects the steps in the speaker-attenuators are not linear over the full range. At attenuations
more than 24dB the steps increase from 1.5dB to 10dB (please see data byte specification).
1.11 Subwoofer Attenuator
The Subwoofer output is a single ended stereo output. The attenuator is exactly the same like the other speak-
ers.
2.0 I2C BUS INTERFACE
2.1 Interface Protocol
The interface protocol comprises:
s
a start condition (S)
s
a chip address byte (the LSB bit determines read / write transmission)
s
a subaddress byte
s
a sequence of data (N-bytes + acknowledge)
s
a stop condition (P)
s
the max. CLOCK SPEED is 500kbits/s
S = Start
R/W ="0" -> Receive-Mode (Chip could be programmed by P)
"1" -> Transmission-Mode (Data could be received by P)
ACK = Acknowledge
P = Stop
2.2 TRANSMITTED DATA (send mode)
SM = Soft mute activated
X = Not Used
The transmitted data is automatic updated after each ACK. Transmission can be repeated without new chipaddress.
D1
D0
Switch position
X
0
SW3 = ON , SW4 = ON (selected internal pass), SW1 = b , SW2 = open
0
1
SW3 = OFF , SW4 = ON, SW1 = a , SW2 = a
1
SW3 = ON , SW4 = OFF, SW1 = b , SW2 = b
MSB
LSB
XX
X
SM
S
1
0
1
0
R/W
ACK
P
MSB
LSB
MSB
LSB
MSB
LSB
CHIP ADDRESS
D99AU1044
I3
I0
SUBADDRESS
DATA 1 to DATA n
I2 I1
A3 A2 A1 A0
相关PDF资料 |
PDF描述 |
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| TDA7404D | 1 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28 |
| TDA7405TR | SPECIALTY CONSUMER CIRCUIT, PQFP44 |
| TDA7405 | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PQFP44 |
| TDA7406T | SPECIALTY CONSUMER CIRCUIT, PQFP44 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA7405 | 功能描述:音频 DSP EQUALIZER CAR RADIO SIGNAL PROCESSOR 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 |
| TDA7405_04 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:EQUALIZER CARRADIO SIGNAL PROCESSOR |
| TDA7405TR | 功能描述:处理器 - 专门应用 EQUALIZER CAR RADIO SIGNAL PROCESSOR RoHS:否 制造商:Freescale Semiconductor 类型:Multimedia Applications 核心:ARM Cortex A9 处理器系列:i.MX6 数据总线宽度:32 bit 最大时钟频率:1 GHz 指令/数据缓存: 数据 RAM 大小:128 KB 数据 ROM 大小: 工作电源电压: 最大工作温度:+ 95 C 安装风格:SMD/SMT 封装 / 箱体:MAPBGA-432 |
| TDA7406 | 功能描述:音频 DSP Car Radio Signal 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 |
| TDA7406T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:CAR RADIO SIGNAL PROCESSOR |
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