GL6552 Datasheet, PDF (1/6 Pages) Hynix Semiconductor – Low Voltage Compander

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.
Features
• 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
EXP MUTIEN
COMP MUTE
GND
GL6552
VCC
ALC
COMP OUT
C-ACF
COMP RECT
COMP NF
COMP IN
14 DIP, 14 SOP(150mil)
Absolute Maximum Ratings(Ta = 25¡ É.)
Parameter
Symbol
Spec.
Unit
Remark
Max. Supply Voltage
V_{CC, MAX}
7
V
Power Dissipation
P_D.MAX
600
mW
Storage Temperature
T_STG
-55 ~+150
¡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
symbol
V_OP
Spec.
2~6
Unit
Remark
V
Operating Temperature
T_OP
-20 ~ +70
¡É
1