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參數(shù)資料
| 型號： | TDA7439 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻控制 |
| 英文描述： | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDIP30 |
| 封裝： | 0.400 INCH, SDIP-30 |
| 文件頁數(shù)： | 5/23頁 |
| 文件大?。?/td> | 296K |
| 代理商： | TDA7439 |
TDA7439
I2C bus transmission examples
13/23
5
I2C bus transmission examples
5.1
No address incrementing
The TDA7439 receives a start condition followed by the correct chip address, then a sub
address with the bit B = 0 (for no address increment), then the data bytes to be sent to the
sub address and finally a stop condition.
Figure 16.
SDA addressing and data for B = 0
5.2
Address incrementing
The TDA7439 receives a start condition followed by the correct chip address, then a sub
address with the B = 1 for address incrementing; now it is in a loop condition with an
automatic increase of the sub address up to D[3:0] = 0x7. That is, the data for sub
addresses from D[3:0] = 1000 (binary) to 1111 are ignored.
In Figure 17 below, DATA1 is directed to the sub address sent (that is, D[3:0]), DATA2 is
directed to the sub address incremented by 1 (that is, 1 + D[3:0]) and so forth until a stop
condition is received to terminate the transmission.
Figure 17.
SDA addressing and data for B = 1
S
1
0
1
0
ACK
DATA
ACK
P
MSB
LSB
MSB
LSB
MSB
LSB
CHIP ADDRESS
D96AU421
X
D3
SUBADDRESS
DATA
X
0
D2 D1 D0
Table 6.
Power-on-reset conditions
Parameter
POR value
Input selection
IN2
Input gain
28 dB
Volume
MUTE
Bass
0 dB
Mid-range
2 dB
Treble
2 dB
Speaker
MUTE
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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| TDA7439_08 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Three-band digitally-controlled audio processor |
| TDA7439B | 功能描述:音頻 DSP 3-Band Digital Cont 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(fēng)格: 封裝 / 箱體: 封裝:Tube |
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