TDF8555J NXP Semiconductors, TDF8555J Datasheet - Page 27

• Manufacturer Part Number: TDF8555J
• Description: The TDF8555J is one of a new generation of complementary quad Bridge-Tied Load(BTL) audio power amplifiers with full I²C-bus controlled diagnostics, multiple voltageregulator and two power switches intended for automotive applications
• Manufacturer: NXP Semiconductors

NXP Semiconductors
TDF8555J
Product data sheet
Table 9.
Table 10.
Table 11.
Bit
1
0
Bit
D7
1
1
1
1
1
1
Bit
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
1
1
Symbol
D1
D0
Symbol
D7
D6
D5
D4
D3
D2
D1
Instruction byte IB1 bit description
Regulator 5 (display) output voltage control
Instruction byte IB2 bit description
All information provided in this document is subject to legal disclaimers.
D6
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Rev. 1 — 15 September 2011
Description
enable or disable AC/DC-load detection/start-up diagnostic
enable or disable amplifier start
Description
regulator 4 (mechanical drive) output voltage control; see
regulator 3 (mechanical digital) control
regulator 1 (audio) control; see
enable or disable soft mute all amplifier channels
0 = AC-load or DC-load detection off/start-up diagnostic disabled
1 = AC-load or DC-load detection on/start-up diagnostic enabled
0 = amplifier off; pin DIAG remains LOW
1 = amplifier on; when power-on occurs, DB2[D7] is reset and
pin DIAG is released
0 = regulator 3 off
1 = regulator 3 on
0 = soft mute off
1 = soft mute on
4 45 W power amplifier with multiple voltage regulator
D5
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
…continued
Table 13
D4
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
TDF8555J
© NXP B.V. 2011. All rights reserved.
Output (V)
0 (off)
6.0
7.0
8.2
9.0
9.5
10.0
10.4
12.5
 V
5.0
3.3
-
-
-
-
P
 0.5 (switch)
Table 12
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