参数资料
型号: TDF8554J/N4
厂商: NXP SEMICONDUCTORS
元件分类: 音频/视频放大
英文描述: 44 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM37
封装: PLASTIC, SOT725-1, 37 PIN
文件页数: 18/56页
文件大小: 597K
代理商: TDF8554J/N4
TDF8554J
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 1 — 31 August 2011
25 of 56
NXP Semiconductors
TDF8554J
4
45 W power amplifier with multiple voltage regulator
9.1 I2C-bus instruction bytes
I2C-bus mode:
If R/W bit = 0, the TDF8554J expects five instruction bytes; IB1, IB2, IB3, IB4, IB5
After a power-on reset, all instruction bits are set to zero
Fig 18. I2C-bus read and write modes
001aam705
ACK
MSB
1
MSB
1
LSB + 1
LSB
LSB + 1
12
78912
789
12
78912
789
: generated by master (microcontroller)
to stop the transfer, after the last acknowledge (A)
a stop condition (P) must be generated
to stop the transfer, the last byte must not be acknowledged
and a stop condition (P) must be generated
: generated by slave
: start
: stop
: acknowledge
: read / write
S
P
A
R/W
SCL
SDA
SCL
SDA
ACK
MSB
1
MSB
1
LSB + 1
LSB
LSB + 1
ACK
SA
A
AP
ADDRESS
WRITE DATA
READ DATA
W
S
ADDRESS
R
I2C-bus WRITE
I2C-bus READ
Table 9.
Instruction byte IB1 bit description
Bit
Symbol
Description
7
D7
regulator 5 (display) output voltage control; see Table 10
6D6
5D5
4D4
3
D3
SW2 control
0 = SW2 off
1 = SW2 on
2
D2
SW1 control
0 = SW1 off
1 = SW1 on
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