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| KK6270 Datasheet, PDF (1/5 Pages) KODENSHI KOREA CORP. – GAIN CONTROLLED MICROPHONE PREAMPLI- FIER/VOGAD | |||
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TECHNICAL DATA
GAIN CONTROLLED MICROPHONE PREAMPLI-
FIER/VOGAD
The KK6270 is a silicon integrated circuit combining the functions of audio amplifier and voice operated gain ad-
justing device (VOGAD).
It is designed to accept signals from a low sensitivity microphone and to provide an essentially constant output
signal for a 50dB range of input. The dynamic range, attack and decay times are controlled by external components.
FEATURES
⢠Constant Output Signal
⢠Fast Attack
⢠Low Power Consumption
⢠Simple Circuitry
APPLICATIONS
⢠Audio AGC Systems
⢠Transmitter Overmodulation Protection
⢠Tape recorders
QUICK REFERENCE DATA
⢠Supply Voltage: 4.5V to 10V
⢠Voltage Gain: 52dB
ABSOLUTE MAXIMUM RATINGS
⢠Supply Voltage: 12V
⢠Storage Temperature: -550C to +1250C
N â index of DIP
8
1
D â index of SOIC
8
1
Tamb = -30ºC - +70ºС for any type of package
Fig.1
PIN CONNECTION
AGC Time Const 1
Preamp Output 2
UCC 3
Preamp Input 4
8 Main Amp Output
7 Main Amp Input
6 OV
5 Preamp Input
Fig.2
1
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