TDA1551Q 查看數據表（PDF） - Philips Electronics
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TDA1551Q Datasheet PDF : 17 Pages
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Philips Semiconductors
2 x 22 W BTL car radio power amplifier
with diagnostic facility
I2C-bus protocol
Preliminary specification
TDA1551Q
SLAVE ADDRESS
DATA
handbook, full pagewidth
S 1 1 0 1 1 0 0 R/W ACK D7 D6 D5 D4 D3 D2 D1 D0 ACK P
MLA006
S: start condition.
R/W: read/write bit; LOW = write.
ACK: acknowledge, generated by the receiving device.
DATA: see Tables 1 and 3.
P: stop conditions.
Fig.4 I2C-bus protocol.
Table 1 WRITE definition (R/W = LOW)
MSB
DATA
LSB
Function
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
0
SLEEP condition
0
0
0
0
0
0
0
1
MUTE condition
0
0
0
0
0
0
1
0
not allowed(1)
0
0
0
0
0
0
1
1
ON condition(2)
Notes
1. For test purposes only; I2C-bus is in the ON condition, amplifier is in the stand-by condition.
2. To get into the ON condition without switch-on plops, the device should be switched from the SLEEP condition to the
MUTE condition and then, after a period of 150 ms, to the ON condition.
Bit D0 switches from SLEEP to the ON condition
Bit D1 switches the MUTE condition
July 1994
10
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