Overview
The TEF6721HL/V1S,557 is a single-chip car radio tuner front-end designed by NXP USA Inc. (formerly Freescale). This integrated circuit supports AM, FM standard, FM In-Band On-Channel Digital Audio Broadcast (IBOC DAB), and weather band reception. It provides combined AM and FM gain-controlled differential Intermediate Frequency (IF) output, making it a comprehensive solution for car radio systems.
The device is part of the TEF6721HL series and is packaged in a 64-pin Low-Profile Quad Flat Package (LQFP) with dimensions of 10x10 mm. It is lead-free and compliant with RoHS and EU RoHS standards, ensuring environmental sustainability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | 64-LQFP (10x10) | - |
| Supply Voltage | 5V, 8.5V | V |
| Operating Temperature | -40°C to 85°C | °C |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | - |
| Modulation or Protocol | AM, FM, WB | - |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant | - |
Key Features
- Single-chip car radio tuner for AM, FM, FM IBOC DAB, and weather band reception.
- Combined AM and FM gain-controlled differential Intermediate Frequency (IF) output.
- FM mixer for conversion of FM Radio Frequency (RF) to an IF of 10.7 MHz with inherent image rejection.
- AM up-conversion tuner to an IF frequency of 10.7 MHz for Long Wave (LW), Medium Wave (MW), and Short Wave (SW) bands.
- Tuning system includes Voltage-Controlled Oscillator (VCO), crystal oscillator, and Phase-Locked Loop (PLL) synthesizer.
- Fast synthesizer PLL tuning system with local control for inaudible Alternative Frequency (AF) updating.
- Optional crystal oscillator frequency pulling via I2C-bus.
- Several test modes for fast Integrated Circuit (IC) tests.
- Software programmable ports and flag outputs for interfacing with IF DSP.
Applications
- AM/FM Radio Receivers
- Car Radio Systems
- Weather Band Receivers
- Digital Audio Broadcast (DAB) Systems
- Automotive Infotainment Systems
Q & A
- What is the TEF6721HL/V1S,557 used for?
The TEF6721HL/V1S,557 is used as a single-chip car radio tuner front-end for AM, FM, FM IBOC DAB, and weather band reception.
- What package type does the TEF6721HL/V1S,557 come in?
The TEF6721HL/V1S,557 is packaged in a 64-pin Low-Profile Quad Flat Package (LQFP) with dimensions of 10x10 mm.
- What are the supply voltage requirements for the TEF6721HL/V1S,557?
The device operates with supply voltages of 5V and 8.5V.
- Is the TEF6721HL/V1S,557 environmentally compliant?
Yes, it is lead-free and compliant with RoHS and EU RoHS standards.
- What is the operating temperature range of the TEF6721HL/V1S,557?
The operating temperature range is from -40°C to 85°C.
- What modulation protocols does the TEF6721HL/V1S,557 support?
The device supports AM, FM, and weather band (WB) modulation protocols.
- How does the TEF6721HL/V1S,557 handle frequency tuning?
The device uses a tuning system that includes a Voltage-Controlled Oscillator (VCO), crystal oscillator, and Phase-Locked Loop (PLL) synthesizer.
- Can the TEF6721HL/V1S,557 be programmed via an I2C-bus?
Yes, the device can be programmed and controlled via an I2C-bus interface.
- What are some of the key features of the TEF6721HL/V1S,557's tuning system?
The tuning system includes fast synthesizer PLL tuning with local control for inaudible AF updating and optional crystal oscillator frequency pulling via I2C-bus.
- Are there any test modes available for the TEF6721HL/V1S,557?
Yes, the device includes several test modes for fast Integrated Circuit (IC) tests.
