TDA7448 STMicroelectronics, TDA7448 Datasheet - Page 4
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TDA7448
Manufacturer Part Number
TDA7448
Description
IC, VOLUME CNTRL, 6CH, 20SO
Manufacturer
STMicroelectronics
Datasheet
1.TDA7448.pdf
(14 pages)
Specifications of TDA7448
Audio Control Type
Volume
Control Interface
I2C
Operating Temperature Range
0°C To +70°C
Audio Ic Case Style
SO
No. Of Pins
20
Svhc
No SVHC (15-Dec-2010)
Base Number
7448
Control / Process
RoHS Compliant
Supply Voltage Range
4.75V To 10V
Rohs Compliant
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TDA7448
Manufacturer:
ST
Quantity:
20 000
Part Number:
TDA7448D13TR
Manufacturer:
ST
Quantity:
20 000
TDA7448
Figure 4. Test circuit
3
The volume control range is 0 to -79dB, by 1dB step
resolution.
The very high resolution allows the implementation of
systems free from any noise acoustical effect.
3.1 CREF
The suggested 10 F reference capacitor (CREF)
value can be reduced to 4.7 F if the application re-
quires faster power ON.
Figure 5. THD vs. frequency
4/14
APPLICATION SUGGESTIONS
IN1
IN2
IN3
IN4
IN5
IN6
0.47 F
0.47 F
0.47 F
0.47 F
0.47 F
0.47 F
10 F
CREF
GND
IN1
IN2
IN3
IN4
IN5
IN6
2
19
3
18
4
17
11
20
50K
50K
50K
50K
50K
50K
VOLUME
VOLUME
VOLUME
VOLUME
VOLUME
VOLUME
SUPPLY
Figure 6. THD vs. R
Figure 7. Channel separation vs. frequency
V
S
1
DECODER
I
2
C BUS
D02AU1406
14
15
16
10
11
7
6
5
9
LOAD
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
SCL
SDA
ADDR