Audioprocessor
TDA 4390-2X
1
Overview
The TDA 4390-2X is a single-chip audio sound system.
The circuit can be partitioned into two functional
blocks.
P-DSO-28-3
1.1
Features
1. Stereo sound processing
• Four stereo AF inputs
• Input/Output interface for external equalizer
• Max. gain switchable between 0 dB and 6 dB
• Bass and treble control
• Four independent attenuators for volume balance and fader control
2. Control part
•
I
2
C Bus interface compatible for standard and fast mode
• Control of sound processing
Type
TDA 4390-2X
Semiconductor Group
Ordering Code
Q67000-A5183
1
Package
P-DSO-28-3
02.96
TDA 4390-2X
1.2
Pin Configuration
(top view)
P-DSO-28-3
Figure 1
Semiconductor Group
2
02.96
TDA 4390-2X
1.3
Pin No.
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
Pin Definitions and Functions
Symbol
Function
AF input 1 left
AF input 2 left
AF input 3 left
AF input 3 left
AF output switch left
AF input tone control volume left
Reset (all functions in power ON status)
I
2
C Bus SCL
I
2
C Bus SDA
Supply voltage
Corner frequency treble left
Corner frequency treble right
AF output right front
AF output right rear
AF output left rear
AF output left front
Corner frequency bass right output
Corner frequency bass right input
Corner frequency bass left output
Corner frequency bass left input
Ground
Blocking AF operating point
AF input tone control volume right
AF output switch right
AF input 4 right
AF input 3 right
AF input 2 right
AF input 1 right
Semiconductor Group
3
02.96
TDA 4390-2X
1.3.1
Pin Description
Figure 2
AF Inputs PIN 1/2/3/4/6/23/25/26/27/28
Figure 3
AF Outputs PIN 5/24
Semiconductor Group
4
02.96
TDA 4390-2X
Figure 4
Reset PIN 7,
I
2
C Bus SCL PIN 8
Figure 5
I
2
C Bus SDA PIN 9
Semiconductor Group
5
02.96
