SA575DG ON Semiconductor, SA575DG Datasheet - Page 6
![IC COMPANDOR 2CHAN GAIN 20-SOIC](/photos/7/4/70410/sa575dg_sml.jpg)
SA575DG
Manufacturer Part Number
SA575DG
Description
IC COMPANDOR 2CHAN GAIN 20-SOIC
Manufacturer
ON Semiconductor
Type
Compandorr
Datasheet
1.SA575DTBR2.pdf
(16 pages)
Specifications of SA575DG
Applications
Cellular Radio, Mixers
Mounting Type
Surface Mount
Package / Case
20-SOIC (7.5mm Width)
Package
20SOIC W
Operating Temperature
-40 to 85 °C
Product
General Purpose Audio Amplifiers
Output Type
Programmable Analog
Available Set Gain
+/- 1.5 dB
Common Mode Rejection Ratio (min)
80 dB
Thd Plus Noise
0.12 %
Operating Supply Voltage
5 V
Supply Current
4.2 mA
Maximum Power Dissipation
1116 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Audio Load Resistance
600 Ohms
Input Bias Current (max)
+/- 1 uA
Input Offset Voltage
3 mV
Minimum Operating Temperature
- 40 C
Supply Voltage (max)
7 V
Supply Voltage (min)
3 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
SA575DG
SA575DGOS
SA575DGOS
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SA575DG
Manufacturer:
PANASONIC
Quantity:
201
Part Number:
SA575DG
Manufacturer:
ON/安森美
Quantity:
20 000
Compressor
Figure 3. In this mode, the rectifier cell and variable gain
cell are in the feedback path. R
feedback to the summing amplifier. The input is AC
coupled through C
In a system with inputs and outputs AC coupled, C
could be eliminated and only R
required. If the external components R
eliminated, then the output of the summing amplifier will
motor-boat in absence of signals or at extremely low
signals. This is because there is no DC feedback path from
The typical compressor configuration is shown in
COMP IN
12
V
and output is AC coupled through C
C
10mF
REF
12
13
6
, R
6
8
and R
7
, C
10kW
Figure 3. Typical Compressor Configuration
7
, and C
7
6
, R
provide the DC
C
15
9
7
D
13
G
and C
8
would be
2.2mF
and C
http://onsemi.com
12
7
are
3.8kW
10kW
12
8
30kW
S
R
.
SA575
6
6
C7
the output to input. In the presence of an AC signal this
phenomenon is not observed and the circuit will appear to
function properly.
release time constant is given by Equation 3 and
Equation 4, respectively.
14
11
The compressor gain expression and the attack and
16
1mF
Compressor gain =
30kW
R
7
C
4.7mF
t
13
R
where V
= t
A
= 10 kW x C
IN
10mF
C
(avg) = 0.95V
8
3.8 kW x 100 mA
RECT
4V
= 10 kW x C
IN
(avg)
IN(RMS)
COMP OUT
4
1/2
(eq. 3)
(eq. 4)