Overview
The TEF6903AH/V5S,557 is a highly integrated single-chip car radio integrated circuit developed by NXP USA Inc. This component is designed to support a wide range of radio functionalities, including FM/AM tuning, stereo decoding, and radio data system (RDS)/Radio Broadcast Data System (RBDS) demodulation. It is optimized for use in automotive audio systems, providing comprehensive audio processing and control features.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VCC) | Analog supply voltage | 8 | 8.5 | 9 | V |
| Supply Current in FM Mode (ICC) | Total supply current inclusive | - | 60 | 102 | mA |
| Supply Current in AM Mode (ICC) | Total supply current inclusive | - | 60 | 89 | mA |
| AM Tuning Frequency | LW, MW, SW | 144 kHz - 288 kHz (LW) 522 kHz - 1710 kHz (MW) 2.3 MHz - 26.1 MHz (SW) | - | - | kHz / MHz |
| Sensitivity Voltage | fRF = 990 kHz; m = 0.3; fmod = 1 kHz; BAF = 2.15 kHz | - | 50 | - | µV |
| S/N Ratio | Ultimate signal-to-noise ratio | 54 | 58 | - | dB |
| THD | Total harmonic distortion | - | 0.4 | 1 | % |
Key Features
- Integrated FM/AM tuner with double conversion for both IF1 and IF2, supporting US FM, Europe FM, Japan FM, and Eastern Europe FM, as well as Long Wave (LW), Medium Wave (MW), and full range Short Wave (SW).
- Radio Data System (RDS)/Radio Broadcast Data System (RBDS) demodulator for radio data reception.
- Multiplex (MPX) stereo decoder with integrated channel filter and variable bandwidth control.
- Flexible audio input source selection and integrated audio processing with tone filtering, including treble, bass, and loudness tone control.
- Volume, balance, fader, and input gain control, with Audio Step Interpolation (ASI) for pop-free function.
- Optional connection of external sound processor, navigation voice, or beep input.
- Compact Disc (CD) dynamics compression and Volume Unit (VU)-meter audio level read-out.
Applications
The TEF6903AH/V5S,557 is primarily designed for use in automotive audio systems. It is suitable for a variety of car radio applications, including:
- Automotive infotainment systems
- Car stereos and audio systems
- Aftermarket car radio installations
- Integrated car audio solutions requiring FM/AM tuning and RDS/RBDS capabilities
Q & A
- What is the TEF6903AH/V5S,557? The TEF6903AH/V5S,557 is a single-chip car radio integrated circuit developed by NXP USA Inc.
- What radio frequencies does it support? It supports FM (US, Europe, Japan, Eastern Europe) and AM (LW, MW, SW) frequencies.
- Does it include RDS/RBDS demodulation? Yes, it includes RDS/RBDS demodulation for radio data reception.
- What are the key audio processing features? It includes integrated audio processing with tone filtering, volume, balance, fader, and input gain control, as well as CD dynamics compression and VU-meter audio level read-out.
- Can it connect to external sound processors? Yes, it allows for the optional connection of external sound processors, navigation voice, or beep input.
- What is the supply voltage range? The supply voltage range is from 8 V to 9 V.
- What are the typical supply currents in FM and AM modes? The typical supply current in FM mode is 60 mA, and in AM mode is 60 mA.
- What is the sensitivity voltage for AM tuning? The sensitivity voltage for AM tuning is typically 50 µV.
- What is the ultimate signal-to-noise ratio? The ultimate signal-to-noise ratio is between 54 dB and 58 dB.
- What are the applications of this component? It is primarily used in automotive audio systems, car stereos, aftermarket car radio installations, and integrated car audio solutions.
