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The HA12442V is a hybrid integrated circuit (HIC) manufactured by HIT (Hitachi). Below are the factual specifications, descriptions, and features of the part:

Manufacturer:

• HIT (Hitachi)

Part Number:

• HA12442V

Description:

• The HA12442V is a hybrid IC designed for FM IF (Intermediate Frequency) amplification and demodulation applications.
• It integrates multiple functions, including IF amplification, quadrature detection, and signal processing for FM radio receivers.

Key Features:

1. FM IF Amplifier:

• High-gain IF amplification for FM signals.
• Optimized for 10.7 MHz IF frequency (common in FM radio systems).

2. Quadrature Detector:

• Built-in quadrature demodulator for FM signal detection.
• Low distortion and high linearity.

3. Wide Operating Voltage Range:

• Typically operates at 4.5V to 12V DC.

4. Low Power Consumption:

• Designed for efficient power usage in portable and automotive FM receivers.

5. Integrated Limiter Amplifier:

• Provides amplitude limiting to suppress noise and interference.

6. Signal Strength Indicator (RSSI):

• Includes an output for Received Signal Strength Indication (RSSI).

Applications:

• FM Radio Receivers (car stereos, portable radios).
• Communication equipment requiring FM demodulation.

Package:

• Typically housed in a SIP (Single In-line Package) or DIP (Dual In-line Package).

Datasheet Reference:

• For detailed electrical characteristics and application circuits, refer to the official Hitachi (HIT) datasheet.

This information is based on the manufacturer's specifications. For exact performance parameters, consult the datasheet or technical documentation from HIT (Hitachi).