TDF8546_SDS All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product short data sheet Rev. 8 — 27 September 2013 6 of 21
NXP Semiconductors
TDF8546
I
2
C-bus controlled 4 45 W best efficiency amplifier
5.2 Pin description
Table 3. Pin description
Symbol Pin Description
TDF8546J/JS TDF8546TH
ADSEL 1 10 I
2
C-bus address select
STB 2 11 Standby (I
2
C-bus mode) or mode pin (legacy mode)
programmable second clip indicator
PGND2 3 14 channel 2 power ground
OUT2 4 15 channel 2 negative output (right rear)
DIAG 5 9 diagnostic and clip detection output
OUT2+ 6 13 channel 2 positive output (right rear)
V
P2
7 16 power supply voltage 2
OUT1 8 18 channel 1 negative output (right front)
PGND1 9 23 channel 1 power ground
OUT1+ 10 17 channel 1 positive output (right front)
SVR 11 24 half supply voltage filter capacitor
IN1 12 25 channel 1 input
IN2 13 26 channel 2 input
SGND 14 27 signal ground
IN4 15 28 channel 4 input
IN3 16 29 channel 3 input
ACGND 17 30 AC ground
OUT3+ 18 2 channel 3 positive output (left front)
PGND3 19 32 channel 3 power ground
OUT3 20 1 channel 3 negative output (left front)
V
P1
21 3 power supply voltage 1
OUT4+ 22 6 channel 4 positive output (left rear)
SCL 23 7 I
2
C-bus clock input
OUT4 24 4 channel 4 negative output (left rear)
PGND4 25 5 channel 4 power ground
SDA 26 8 I
2
C-bus data input and output
TAB 27 36 heatsink connection; must be connected to ground
n.c. - 12, 19, 20,
21, 22, 31,
33, 34, 35
not connected
