Overview
The TEF6721HL/V1,518 is a highly integrated single-chip car radio tuner front-end designed by NXP Semiconductors. This component is tailored for use in AM, FM, and weather band radio receivers, as well as for FM In-Band On-Channel Digital Audio Broadcast (IBOC DAB). It combines the functions of AM and FM gain-controlled differential Intermediate Frequency (IF) output, making it a versatile solution for modern car radio systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | NXP Semiconductors / Freescale | |
| Package / Case | 64-LQFP (10x10) | |
| Voltage - Supply | 5V, 8.5V | V |
| Operating Temperature | -40°C ~ 85°C | °C |
| Modulation or Protocol | AM, FM, WB | |
| Data Interface | PCB, Surface Mount | |
| Applications | AM/FM Radio Receiver, Antenna Connector |
Key Features
- 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)/Short Wave (SW) bands.
- Integrated 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.
- Timing function for AF updating algorithm and control signal output for interfacing with IF DSP.
- Three hardware programmable I2C-bus addresses and two software-controlled flag outputs.
- Several test modes for fast Integrated Circuit (IC) tests.
Applications
- AM/FM Radio Receivers
- FM In-Band On-Channel Digital Audio Broadcast (IBOC DAB)
- Weather band reception
- Car radio systems
Q & A
- What is the primary function of the TEF6721HL/V1,518?
The primary function of the TEF6721HL/V1,518 is to serve as a single-chip car radio tuner front-end for AM, FM, and weather band radio receivers.
- What are the supported modulation protocols?
The component supports AM, FM, and weather band (WB) protocols.
- What is the operating temperature range of the TEF6721HL/V1,518?
The operating temperature range is -40°C to 85°C.
- What type of package does the TEF6721HL/V1,518 come in?
The component comes in a 64-LQFP (10x10) package.
- What are the supply voltages for the TEF6721HL/V1,518?
The supply voltages are 5V and 8.5V.
- Does the TEF6721HL/V1,518 have built-in image rejection for FM signals?
Yes, the FM mixer provides inherent image rejection.
- How does the TEF6721HL/V1,518 handle frequency tuning?
The component uses a Voltage-Controlled Oscillator (VCO), crystal oscillator, and Phase-Locked Loop (PLL) synthesizer for frequency tuning.
- What interface does the TEF6721HL/V1,518 use for data transfer?
The component uses an I2C-bus interface for data transfer.
- Are there any test modes available for the TEF6721HL/V1,518?
Yes, the component has several test modes for fast Integrated Circuit (IC) tests.
- What is the purpose of the PLL synthesizer in the TEF6721HL/V1,518?
The PLL synthesizer is used for fast tuning and local control for inaudible Alternative Frequency (AF) updating.
