TDF8555J NXP Semiconductors, TDF8555J Datasheet - Page 7

• 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
6.2 Pin description
Table 3.
Symbol
PGND2/TAB
SDA
OUT2
SCL
OUT2+
V
OUT1
PGND1
OUT1+
SVR
IN1
IN2
SGND
IN4
IN3
ACGND
OUT3+
PGND3
OUT3
V
OUT4+
STB
OUT4
PGND4
DIAG
V
SW2
REG6
SW1
REG1
REG3
GND
REG4
REG5
P2
P1
DCDC
Pin description
All information provided in this document is subject to legal disclaimers.
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
Rev. 1 — 15 September 2011
Description
power ground 2 and connection for heatsink
I
channel 2 negative output
I
channel 2 positive output
power supply voltage 2 to amplifiers
channel 1 negative output
power ground 1
channel 1 positive output
half supply voltage filter capacitor
channel 1 input
channel 2 input
signal ground
channel 4 input
channel 3 input
AC ground
channel 3 positive output
power ground 3
channel 3 negative output
power supply voltage 1 to amplifiers
channel 4 positive output
standby or operating mode select input
channel 4 negative output
power ground 4
diagnostic and clip detection output, active LOW
power supply voltage from optional DC-to-DC converter
antenna switch; supplies unregulated voltage to car aerial motor
regulator 6 output; supply voltage for I
amplifier switch output
regulator 1 output; supply voltage for audio section of radio and CD
player
regulator 3 output; supply voltage for signal processor section
(mechanical digital) of CD player
combined voltage regulator, power and signal ground
regulator 4 output; supply voltage for mechanical section
(mechanical drive) of CD player
regulator 5 output; supply voltage for display section of radio and
CD player
2
2
4 45 W power amplifier with multiple voltage regulator
C-bus data input and output
C-bus clock input
2
C-bus
TDF8555J
© NXP B.V. 2011. All rights reserved.
7 of 57