Features: • designed to drive class D integrated receivers• adjustable peak clipper• low current drain (150 mA typical)• 46 dB of adjustable gain• low external parts required (RVC, RMPO)• low noise and distortion• mid supply referenced outputPinoutSpecific...
GS3001: Features: • designed to drive class D integrated receivers• adjustable peak clipper• low current drain (150 mA typical)• 46 dB of adjustable gain• low external parts re...
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Features: Very high output power (300W)High efficiency (80%min.)Parallel operation with current sh...
PARAMETER VALUE & UNITS |
Supply Voltage 3 V DC Power Dissipation 25 mW Operating Temperature -10 to + 40 °C Storage Temperature -20 to +70 °C |
The GS3001 incorporates Gennum's GL504 preamp, all the required coupling and decoupling capacitors, and a midsupply referencing 48 kW resistor. GS3001 is required further for a fully functioning hearing aid system is the addition of a microphone, receiver, volume control and an MPO adjusting potentiometer.
The GS3001 can be mounted on the back of the hearing aid's battery compartment. GS3013 has several access pads allowing for adjustment of the frequency characteristics. An additional ground pad (8a) is also included to aid in the manufacturability of the system.
The GL504 chip is Gennum's proprietary low current preamplifier designed to drive class D integrated receivers. This preamp GS3001 has a built-in symmetrical peak clipping output limiter and up to 46 dB of adjustable gain.
The major advantage of the GL504 over other preamplifiers is the electronic MPO adjustment. Since conventional MPO is not possible for integrated receivers, GS3013 is provided in the preamp. The maximum output swing is easily set using an RMPO resistor. The receiver output level of GS3001 is thus limited, preventing it from exceeding the discomfort level.