CA3189

Features: • Includes IF Amplifier, Quadrature Detector, AF Preamplifier, and Specific Circuits for AGC, AFC, Tuning Meter, Deviation-Noise Muting, and ON Channel Detector• FM IF Amplifier Applications in High-Fidelity, Automotive, and Communications Receivers• Exceptional Limitin...

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SeekIC No. : 004310292 Detail

CA3189: Features: • Includes IF Amplifier, Quadrature Detector, AF Preamplifier, and Specific Circuits for AGC, AFC, Tuning Meter, Deviation-Noise Muting, and ON Channel Detector• FM IF Amplifie...

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Part Number:
CA3189
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/3/10

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Product Details

Description



Features:

• Includes IF Amplifier, Quadrature Detector, AF Preamplifier, and Specific Circuits for AGC, AFC, Tuning Meter, Deviation-Noise Muting, and ON Channel Detector
• FM IF Amplifier Applications in High-Fidelity, Automotive, and Communications Receivers
• Exceptional Limiting Sensitivity -12V (Typ) at -3dB Point
• Low Distortion -0.1% (Typ) (with Double-Tuned Coil)
• Single-Coil Tuning Capability
• Improved S + N/N Ratio
• Externally Programmable Recovered Audio Level
• Provides Specific Signal for Control of Interchannel Muting (Squelch)
• Provides Specific Signal for Direct Drive of a Tuning Meter
• On Channel Step for Search Control
• Provides Programmable AGC Voltage for RF Amplifier
• Provides a Specific Circuit for Flexible Audio Output
• Internal Supply Voltage Regulators
• Externally Programmable "On" Channel Step Width, and Deviation at Which Muting Occurs



Pinout

  Connection Diagram


Specifications

DC Supply Voltage
(Between Terminals 11 and 4) . . . . . . . . . . . . . . . . . . . . . . . . 16V
(Between Terminals 11 and 14) . . . . . . . . . . . . . . . . . . . . . . . 16V
DC Current (Out of Terminal 15) . . . . . . . . . . . . . . . . . . . . . . . .2mA



Description

The Harris CA3189E is a monolithic integrated circuit that provides all the functions of a comprehensive FM-lF system. The block diagram of the CA3189E includes a three-stage FM-lF amplifier/limiter configuration with level detectors for each stage, a doubly-balanced quadrature FM detector and an audio amplifier that features the optional use of a muting (squelch) circuit.

The advanced circuit design of the IF system includes desirable deluxe features such as programmable delayed AGC for the RF tuner, an AFC drive circuit, and an output signal to drive a tuning meter and/or provide stereo switching logic. In addition, internal power-supply regulators maintain a nearly constant current drain over the voltage supply range of +8.5V to +16V.

The CA3189E is ideal for high-fidelity operation. Distortion in a CA3189E FM-lF System is primarily a function of the phase linearity characteristic of the outboard detector coil. The CA3189E has all the features of the CA3089E plus additions. See CA3189E features compared to the CA3089E in Table 1.




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