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GS3024A Dataheets PDF



Part Number GS3024A
Manufacturers Gennum Corporation
Logo Gennum Corporation
Description CLASS-D HYBRID
Datasheet GS3024A DatasheetGS3024A Datasheet (PDF)

www.DataSheet4U.com CIC, Class D Hybrid GS3024A - DATA SHEET FEATURES • small outline for CIC applications • designed to drive class D integrated receivers • on chip voltage regulator for improved end of battery life operation • adjustable symmetrical peak clipper for MPO control • low current drain (150 µA typical) STANDARD PACKAGING • Hybrid Typical Dimensions 0.145 in. x 0.085 in. x 0.065 in. (3.68 mm x 2.16 mm x 1.65 mm) DESCRIPTION The GS3024A is a Gennum proprietary hybrid for CIC applica.

  GS3024A   GS3024A


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www.DataSheet4U.com CIC, Class D Hybrid GS3024A - DATA SHEET FEATURES • small outline for CIC applications • designed to drive class D integrated receivers • on chip voltage regulator for improved end of battery life operation • adjustable symmetrical peak clipper for MPO control • low current drain (150 µA typical) STANDARD PACKAGING • Hybrid Typical Dimensions 0.145 in. x 0.085 in. x 0.065 in. (3.68 mm x 2.16 mm x 1.65 mm) DESCRIPTION The GS3024A is a Gennum proprietary hybrid for CIC applications. It incorporates a newly designed integrated circuit which offers optimum performance in class D receiver applications. The system consists of a voltage regulator, a single low noise inverting preamplifier and a mid supply referenced output stage. The voltage regulator provides a clean DC voltage for the microphone and preamplifier, so that at end of battery life conditions when the output impedance of the battery is high, the system maintains stable operation. The preamplifier and output stage have been optimally compensated to minimize aliasing effects normally associated with class D operation. The two stages have been DC coupled to reduce the external components required, thereby minimizing the hybrid footprint. The hybrid incorporates a decoupling capacitor for the regulator as well as input and output coupling capacitors for the microphone and receiver. In a minimum parts configuration, a microphone, receiver and gain set resistor, need to be added to the hybrid for a fully functional hearing instrument. Should the application require the Maximum Power Output (MPO) to be adjusted, a potentiometer can be added from pad 6 of the hybrid to ground. VREG 4 C1 0µ1 REGULATOR 1 VB 50kΩ -A -B 50kΩ IN 5 C2 0µ1 C3 22n 8 OUT GS3024A 3 AIN All resistors in ohms, all capacitors in farads unless otherwise stated. 2 6 7 AOUT MPO GND BLOCK DIAGRAM Revision Date: May 1998 Document No. 521 - 24 - 03 GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3 tel. +1 (905) 632-2996 Web Site: www.gennum.com E-mail: [email protected] www.DataSheet4U.com ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Power Dissipation Operating Temperature Storage Temperature VALUE & UNITS 3 V DC 8 25 mW -10 to + 40 °C -20 to +70 °C 1 OUT PIN CONNECTION GND MPO IN 7 6 5 2 3 4 CAUTION CLASS 1 ESD SENSITIVITY VB AOUT AIN VREG ELECTRICAL CHARACTERISTICS Conditions: Supply Voltage VB = 1.3VDC, Temperature 25 oC, Frequency = 1 kHz. PARAMETER Amplifier Current Regulator Voltage Regulator Power Supply Rejection Input Referred Noise STAGE A Input Bias Voltage Input Bias Current Output Voltage Swing Low Open Loop Voltage Gain STAGE B Maximum Output Level MPO Range Output Impedance SYSTEM AC Voltage Gain Change in Gain SYMBOL IAMP VREG PSRR IRN CONDITION MIN 80 0.87 - TYP 150 0.92 63 2 MAX 220 0.97 - UNITS µA V dB µVRMS NFB at 200 Hz to 10 kHz - VBIAS IBIAS VOL AOL At DC 500 -25 200 46 570 0 250 53 630 25 - mV nA mV dB MPO ∆MPO ROUT VIN = -50 dBV VIN = -50 dBV, RMPO = 50 kΩ -14.5 14 20 -12.5 16 25 -10.5 18 30 dBV dB kΩ GAIN ∆GAIN VIN = -66 dBV RMPO = 100 kΩ VIN = -78 dBV 40 - 42 0 44 2.5 dB dB All conditions and parameters remain as shown in test circuit unless stated in "conditions " column. 521 - 24 - 03 2 www.DataSheet4U.com 1.3VDC 4 C1 0µ1 3k9 5 VIN 1kHz 0dBV C2 0µ1 REGULATOR 1 50kΩ -A -B 50kΩ C3 22n 8 VOUT 50k GS3024A 3 2 6 7 100k All resistors in ohms, all capacitors in farads unless otherwise stated. RMPO=0Ω Fig. 1 Production Test Circuit VB 4 C1 0µ1 REGULATOR 1 50kΩ -A -B 50kΩ EM3046 or MODEL 39 5 C2 0µ1 C3 22n 8 2µ2 ES3127 GS3024A 3 RVC 100k All resistors in ohms, all capacitors in farads unless otherwise stated. 2 6 7 Fig. 2 Typical Hearing Instrument Application (Minimum Parts Configuration) 3 521 - 24 - 03 www.DataSheet4U.com BATTERY RVC - + 4 + MIC EM3046 or MODEL 39 5 3 2 1 + 6 7 8 2µ2 REC ES3127 Fig. 3 Typical Instrument Assembly Diagram (Minimum Parts Configuration) 1.3VDC 4 C1 0µ1 3k9 5 VIN C2 0µ1 REGULATOR 1 50kΩ -A -B 50kΩ C3 22n 8 VOUT 50k GS3024A 3 RVC 100k All resistors in ohms, all capacitors in farads unless otherwise stated. 2 6 7 RMPO=0Ω Fig. 4 Characterization Circuit (Used to generate typical curves) 521 - 24 - 03 4 www.DataSheet4U.com -10 -15 -25 -35 -10 -15 -20 R MPO=0Ω RMPO=3.3k R MPO=10k R MPO=22k R MPO=50k R VC = 100k OUTPUT (dBV) -45 -55 -65 -75 -85 -95 -140 R VC = 33k RVC = 10k OUTPUT (dBV) -20 -25 -30 -35 -40 -45 -50 RVC = 3.3k -120 -100 -80 -60 -40 -90 -80 -70 -60 -50 -40 -30 -20 INPUT (dBV) INPUT (dBV) Fig. 5 I/O for Various R VC Settings Fig. 6 I/O for Various RMPO Settings 1 0 -2 -4 -6 -8 -10 10 9 RELATIVE OUTPUT (dBV) RVC =10k RVC=50k THD (%) 20k 8 7 6 5 4 3 RVC =100k -12 -14 -16 100 1k 10k 2 1 0 -90 -86 -82 -78 -74 -70 -66 -62 -58 -54 FREQUENCY (Hz) INPUT (dBV) Fig. 7 Frequency Response for Various RVC Values Fig. 8 Distortion vs Input Leve.


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