TDF8553J NXP Semiconductors, TDF8553J Datasheet - Page 16

• Manufacturer Part Number: TDF8553J
• Description: I2C-bus controlled 4 X 50 Watt power amplifier and multiple voltage regulator
• Manufacturer: NXP Semiconductors

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NXP Semiconductors
TDF8553J_1
Objective data sheet
Fig 10. I
SDA
SDA
SCL
SCL
I
I
2
R/W
2
2
C-bus read and write modes
C-bus WRITE
C-bus READ
S
P
A
S
S
: generated by master (microcontroller)
: generated by slave (TDF8553)
: start
: stop
: acknowledge
: read / write
MSB
MSB
1
1
Table 4.
Bit
7
6
5
4
3
2
1
MSB
MSB
ADDRESS
ADDRESS
2
2
1
1
Symbol
D7
D6
D5
D4
D3
D2
D1
Instruction byte IB1 bit description
LSB + 1
LSB + 1
7
7
Rev. 01 — 3 December 2008
W
R
Description
regulator 5 output voltage control; see
SW2 control
SW1 control
AC-load or DC-load detection switch
8
8
0 = SW2 off
1 = SW2 on
0 = SW1 off
1 = SW1 on
0 = AC-load or DC-load detection off; resets DC-load detection bits
and AC-load detection peak current counter
1 = AC-load or DC-load detection on
4
ACK
ACK
A
A
50 Watt power amplifier and multiple voltage regulator
9
9
MSB
MSB
1
1
To stop the transfer, the last byte must not be acknowledged
MSB
MSB
2
2
WRITE DATA
1
1
READ DATA
To stop the transfer, after the last acknowledge (A)
and a stop condition (P) must be generated
LSB + 1
LSB + 1
a stop condition (P) must be generated
7
7
Table 5
LSB
LSB
8
8
TDF8553J
ACK
ACK
A
A
© NXP B.V. 2008. All rights reserved.
9
9
001aai674
P
P
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