2002 Jan 14
10
Philips Semiconductors
Preliminary specification
4
×
44 W into 4
Ω
or 4
×
75 W into 2
Ω
quad BTL car radio power amplifier
TDA8591J
handbook, halfpage
MGU513
MICRO-
CONTROLLER
V
R
DIAG
handbook, halfpage
MGU514
MICRO-
CONTROLLER
V
R
DIAG
handbook, halfpage
MGU515
MICRO-
CONTROLLER
5 V
IN1
R1
R2
DIAG
handbook, halfpage
MGU516
MICRO-
CONTROLLER
5 V
IN1
R1
R2
IN2
DIAG
Fig.8 Connecting the DIAG output to a microcontroller input.
a. Internal pull-up.
b. External pull-up.
c. Level shifter.
d. Two-pin diagnostics.