TDA7502_06 Datasheet, PDF (6/25 Pages) STMicroelectronics – In-car remote amplifier DSP

Block diagram and PIN description
TDA7502
Table 1. Pin description
N.
Name
Type
Reset
status
Function
1
VDD1
P
– 3.3V core supply.
2
GND1
G
– Core ground.
External interrupt line (Input/Output). When this line is
3
INT
I/O
– asserted low, the DSP may be interrupted. Acts as IRQA
line of DSP core.
4
SCANEN
I
–
SCAN enable when active with TESTEN also active,
controls theshifting of the internal scan chains.
5
TESTEN
Test enable when active, puts the chip into test mode and
I
– muxes the XTI clock to all flip-flops. When SCANEN is also
active, the scan chain shifting
6
DBRQN
I
–
Debug port request Input. A means of entering the Debug
mode of operation.
7 DBOUT/GPIO2 I/O
8
VDD2
I
I
The serial data output for the Debug port. Can also be
used as a GPIO.
– 3.3V core supply.
9
GND2
I
10 DBCK/GPIO0 I/O
11 DBIN/GPIO1 I/O
– Core ground.
Debug port Bit Clock/Chip status 1. The serial clock for the
I
Debug Port is provided when an input. When an output,
provides information about the chip status. Can also be
used as GPIO
Debug port Serial Input/Chip status 0. The serial data
I
input for the Debug Port is provided when an input. When
an output, provides information about the chip status. Can
also be used as GPIO.
12
CLKOUT
13
PGND
O
– Output clock.
G
–
PLL clock ground Input. Ground connection for oscillator
circuit.
14
PVCC
15
XTO ⁽¹⁾
P
–
PLL clock power supply. Positive supply for PLL clock
oscillator.
O High Crystal oscillator output. Crystal oscillator output drive.
16
XTI ⁽¹⁾
I
–
Crystal oscillator input. External clock input or crystal
connection.
System reset. A logic low level applied to RESET input
17
RESET
I/O
I
initializes DSPs. During debug mode if this pin is pulled
low in while the DBRQN line is pulled low then the DSP
pointed to by the DBSEL pin will be reset.
18
VDD3
P
– 3.3V supply.
19
GND3
20
SDI0
21
SDI1
22
SDI2
G
– Ground.
I
– SDI0 is a stereo digital audio data input pin channel 0.
I
– SDI1 is a stereo digital audio data input pin channel 1.
I
– SDI2 is a stereo digital audio data input pin channel 2.
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