Overview
The SAF7741HV/N125YY, produced by NXP USA Inc., is a sophisticated integrated circuit designed for car radio and audio processing. This device combines Intermediate-Frequency (IF) car radio and audio Digital Signal Processor (DSP) functionalities on a single chip. It integrates analog IF input, digital radio and audio processing, sample-rate converters, and digital and analog audio output, enhancing listening clarity and noise suppression while reducing multipath channel effects. The SAF7741HV is compatible with the TEF7000 and TEF6730 integrated tuners for analog and digital AM/FM decoding and sound processing.
Key Specifications
| Parameter | Description |
|---|---|
| Package Type | HLQFP144 |
| Supply Voltage | 1.8 V (digital core), 3.3 V (IF ADCs and RGPDACs) |
| Processing Blocks | Radio processing block and audio processing block |
| Interfaces | RDS bit clock/output, RDS data output, general reset, system clock in/output, etc. |
| Environmental Compliance | PbFree, EU RoHS, Halogen Free, REACH SVHC compliant |
| Status | No Longer Manufactured/End of Life |
Key Features
- Improved FM weak-signal processing and integrated 19 kHz Multiplexed (MPX) filter and de-emphasis.
- Electronic adjustment of FM/AM level and FM channel separation.
- Variable IF bandwidth controlled by DSP software.
- Digital stereo decoder for FM and AM.
- Advanced digital Interference Absorption Circuit (IAC) for FM and AM.
- Digital Automatic Frequency Control (AFC).
- RDS demodulation and pause detection for RDS updates with audio mute during RDS updates.
- Baseband audio processing (treble, bass, balance).
- Possibility of powering down unused blocks to reduce power dissipation.
- Qualified in accordance with AEC-Q100.
Applications
The SAF7741HV/N125YY is primarily used in car radio systems, providing advanced digital signal processing for both radio and audio functions. It is designed to work with various car radio manufacturers' systems, offering a high level of product differentiation. Key applications include:
- Analog and digital AM/FM radio systems.
- Car audio systems requiring advanced signal processing.
- Systems integrating RDS (Radio Data System) features.
Q & A
- What is the primary function of the SAF7741HV/N125YY?
The primary function is to serve as a combined Intermediate-Frequency (IF) car radio and audio Digital Signal Processor (DSP).
- What type of package does the SAF7741HV/N125YY come in?
The device comes in a HLQFP144 package.
- What are the supply voltages for the SAF7741HV/N125YY?
The device requires 1.8 V for the digital core and 3.3 V for IF ADCs and RGPDACs.
- Does the SAF7741HV/N125YY support RDS features?
Yes, it supports RDS demodulation and related features.
- Is the SAF7741HV/N125YY environmentally compliant?
Yes, it is PbFree, EU RoHS, Halogen Free, and REACH SVHC compliant.
- What is the current manufacturing status of the SAF7741HV/N125YY?
The device is no longer manufactured or has reached end of life.
- Can the SAF7741HV/N125YY be used in various car radio systems?
Yes, it is designed to work with different car radio manufacturers' systems, offering product differentiation.
- Does the SAF7741HV/N125YY support variable IF bandwidth?
Yes, the IF bandwidth is variable and controlled by DSP software.
- What kind of audio processing does the SAF7741HV/N125YY support?
The device supports baseband audio processing including treble, bass, and balance adjustments.
- Is power management a feature of the SAF7741HV/N125YY?
Yes, it allows powering down unused blocks to reduce power dissipation.
