GL6552
GL6552
Low Voltage Compander
General Descriptions
The GL6552 is a Compander IC, which
contains two variable gain circuits configured
for compressing and expanding the dynamic
range, and improving of S/N ratio of audio
signal. It consists of compressor, expander, Mic
Amp,
limiter,
ALC(Automatic
Level
Control)and mute logic. The compressor circuit
has the 2/1 ratio of input/output ratio by
logarithm, and the expander circuit by
logarithm. An internal, temperature stable
bandgap reference provides the necessary
precision voltage and current. Applications
include cordless telephone and most voice RF
links.
•
Operating Supply Voltage: 2 ~ 6 V
•
Built in ALC circuit
•
Built in Mute logic circuit
•
Easy gain control to use external component
Pin Configuration
V
REF
EXP IN
EXP RECT
EXP OUT
IN
EXP MUTE
COMP MUTE
GND
GL6552
VCC
ALC
COMP OUT
C-ACF
COMP RECT
COMP NF
COMP IN
Features
14 DIP, 14 SOP(150mil)
Absolute Maximum Ratings(Ta = 25
¡ É
.
)
Parameter
Max. Supply Voltage
Power Dissipation
Storage Temperature
Symbol
V
CC, MAX
P
D.MAX
T
STG
Spec.
7
600
-55 ~+150
Unit
V
mW
Remark
¡ É
Stress above those listed under “Absolute Maximum Rating” may cause permanent damage of device.
This is stress rating only and functional operation of the device at these or any other conditions above
those indicated in the operational sections of this specification is not implied.
Exposure to absolute maximum rating conditions for longer periods may affect device reliability.
During overload conditions (V
IN
> V
CC
or V
IN
<GND), those voltage on V
CC
pins with respect to ground
must not exceed the values defined by the absolute maximum ratings.
Operating Conditions (Ta = 25¡
É
)
Parameter
Operating Voltage
Operating Temperature
symbol
V
OP
T
OP
Spec.
2~6
-20 ~ +70
Unit
V
¡ É
Remark
1
HYNIX [ HYNIX SEMICONDUCTOR ]
