GS3026 Datasheet | Gennum Corporation

.. AGC-O in a CIC Size Hybrid - DATA SHEET Features - CIC suitable package size 8:1 pression ratio 38 d B maximum system gain, adjustable over a 38 d B range output pression threshold, adjustable over 16 d B range designed to drive a class D integrated receiver averaging detector DESCRIPTION The GS3026 CIC hybrid Features AGC-O capability for low distortion output limiting and offers a package size suitable for CIC instruments. The circuit consists of a newly designed AGC preamplifier and output stage, capable of driving the class D integrated receiver. The pression control circuit varies the current controlled resistance, connected between the input and output of the AGC preamplifier. The pression circuit operates with an 8:1 pression ratio and uses an averaging detector with a time constant of 270 ms, selected to provide optimal sound quality over the full range of sound and listening environments. The actual attack and release times are typically 40 ms and 150 ms respectively when the circuit is fully in the pression region of operation (measured times will vary depending on gain and threshold settings). The system gain and pression control can be adjusted by the choice of two independent resistors. Maximum system gain is 38 d B and it can be adjusted within a 38 d B range. The output pression threshold can be adjusted within a 16 d B range. - - - - - STANDARD PACKAGING Hybrid typical dimensions: 0.162 in x 0.094 in x 0.070 in (4.11 mm x 2.39 mm x 1.78 mm) VB 1 Rvc 4 RTH 6 C3 0µ15 VREG 3 C1 0µ1 REG. 8:1 PRESSION CONTROL RECT. VB 48k C4 C2 IN 2 0µ1 -A 12k B 48k 5 OUT 33n GND 7 C5 22n All resistors in ohms, all capacitors in farads unless otherwise stated. BLOCK DIAGRAM Revision Date: July 1998 Document No. 521 - 71 - 02 GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3 tel. +1 (905) 632-2996 Web Site: .gennum. E-mail: hipinfo@gennum. .. ABSO...