radio

CD2003GP Datasheet PDF – FM/AM RADIO IC – WUXI CHINA

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Part Number: CD2003GP

Function: Miltimedia IC / FM / AM RADIO IC

Package: DIP16 / SOP16

Manufacturer: Wuxi China Resources Silicon Microelectronics

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CD2003GP image

Description

The CD2003GP, CD2003GB  is  a monolithic IC designed for use as a FM/ AM radio system. The CD2003GP is a monolithic integrated circuit designed for FM/AM radio receiver systems, operating over a wide supply voltage range of 1.8V to 7V. It integrates key radio frequency and intermediate frequency stages, eliminating the need for external FM/AM IFTs and FM detector coils while simplifying circuit alignment. This IC is typically used in portable radios, compact audio receivers, and low-power radio applications when combined with an external audio amplifier.

Pinout

CD2003GP Datasheet

Features

  • Integrated FM/AM radio receiver functionality
  • No need for FM IFT, AM IFT, or FM detector coil
  • Adjustment-free FM detector circuit
  • Wide operating voltage range VCC = 1.8~7V
  • Reduced external component count
  • Low power consumption suitable for battery operation
  • Compact design for portable applications

Test Circuit

CD2003GP Circuit

Design Notes

  • Minimize RF trace lengths and use proper grounding to reduce noise coupling
  • Use high-quality tuning components for stable frequency selection
  • Decouple VCC with low-ESR capacitors close to the IC
  • Shield sensitive RF sections to improve reception performance
  • Pair with a suitable audio amplifier IC for complete radio system design

How to Choose This Part

  • Select for compact FM/AM receiver designs with minimal external components
  • Suitable for low-voltage, battery-powered radio applications
  • Ideal when simplified alignment and tuning are required
  • Consider RF layout complexity and shielding requirements
  • Ensure compatibility with desired frequency bands and audio stages

Applications

  • Portable FM/AM radios
  • Pocket radio receivers
  • Consumer audio devices
  • Embedded radio modules
  • Educational and DIY radio kits

Alternative / Equivalent Products

  • CD2003
  • TA2003
  • KA22495
  • CXA1019
  • LA1800

Other data sheets are available within the file: CD2003

CD2003GP Datasheet PDF Download

CD2003GP pdf

CV203 Datasheet PDF – Car Radio Audio Amplifer

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Part Number: CV203 ( = TDA2003 )

Function: Car Radio Audio Amplifer

Package: TO-220-5 Pin, Pentawatt 5 Pin Type

Manufacturer: Huajing Microelectronics

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CV203 datasheet

Description

The CV203 is Car radio audio amplifier.

The TDA2003 has improved performance with the same pin configuration as the TDA2002. The additional features of TDA 2002, very low number of external components, ease of assembly, space and cost saving, are maintained. The device provides a high output current capability (up to 3.5A) very low harmonic and cross-over distortion. Completely safe operation is guaranteed due to protection against DC and AC short circuit between all pins and ground, thermal over-range, load dump voltage surge up to 40V and fortuitous open ground.

Pinout

CV203 pinout

Pin Configuration (TO-220-5)

  • Pin 1: Non-inverting input (+)
  • Pin 2: Inverting input (−)
  • Pin 3: Ground
  • Pin 4: Output
  • Pin 5: Supply voltage (VS)

Key Features

  • High output current capability: up to 3.5A
  • Low harmonic distortion
  • Low crossover distortion
  • Wide supply voltage range (typically 8V–18V, up to 28V absolute max)
  • Low external component count
  • Same pinout as TDA2002 (drop-in replacement)

Applications

  • Car audio amplifiers
  • Portable speakers
  • TV audio output stages
  • DIY audio amplifier projects
  • Alarm and announcement systems

Alternative Devices

  • TDA2002 (lower power predecessor)
  • TDA2030 (higher power, dual supply capable)
  • LM1875 (hi-fi class alternative)
  • TDA2050 (higher output power)

CV203 Datasheet PDF