Overview
The TEF6721HL/V1,557 is a car radio tuner front-end integrated circuit (IC) designed by NXP USA Inc. This single-chip solution is engineered to support AM, FM, and weather band reception, including FM In-Band On-Channel Digital Audio Broadcast (IBOC DAB). The IC integrates various functions necessary for car radio systems, such as AM and FM gain-controlled differential Intermediate Frequency (IF) output, and it includes a tuning system with a Voltage-Controlled Oscillator (VCO), crystal oscillator, and Phase-Locked Loop (PLL) synthesizer.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer Part Number | TEF6721HL/V1,557 |
| Manufacturer | NXP USA Inc. |
| Description | IC DIGITAL IF FRONT END 64LQFP |
| Voltage - Supply | 5V, 8.5V |
| Supplier Device Package | 64-LQFP (10x10) |
| Package / Case | 64-LQFP |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Modulation or Protocol | AM, FM, WB |
| Applications | AM/FM Radio Receiver |
| Antenna Connector | PCB, Surface Mount |
Key Features
- Single-chip car radio tuner for AM, FM, and weather band reception, including FM IBOC DAB.
- Integrated FM mixer for converting FM Radio Frequency (RF) to an Intermediate Frequency (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.
- Software programmable ports and I2C-bus interface for configuration and control.
- Automatic Gain Control (AGC) for both AM and FM front-ends.
Applications
The TEF6721HL/V1,557 is primarily used in car radio systems, supporting a wide range of radio bands including AM, FM, and weather bands. It is also suitable for systems requiring FM In-Band On-Channel Digital Audio Broadcast (IBOC DAB) capabilities.
Q & A
- What is the TEF6721HL/V1,557 used for?
The TEF6721HL/V1,557 is used as a car radio tuner front-end for AM, FM, and weather band reception.
- What are the supply voltages for the TEF6721HL/V1,557?
The supply voltages are 5V and 8.5V.
- What is the package type of the TEF6721HL/V1,557?
The package type is 64-LQFP (10x10).
- What is the operating temperature range of the TEF6721HL/V1,557?
The operating temperature range is -40°C to 85°C.
- Does the TEF6721HL/V1,557 support I2C-bus interface?
Yes, it supports I2C-bus interface for configuration and control.
- What modulation protocols does the TEF6721HL/V1,557 support?
The IC supports AM, FM, and WB modulation protocols.
- Is the TEF6721HL/V1,557 RoHS compliant?
Yes, the TEF6721HL/V1,557 is RoHS compliant.
- What are the key components of the tuning system in the TEF6721HL/V1,557?
The tuning system includes a Voltage-Controlled Oscillator (VCO), crystal oscillator, and Phase-Locked Loop (PLL) synthesizer.
- Does the TEF6721HL/V1,557 have Automatic Gain Control (AGC)?
Yes, it has AGC for both AM and FM front-ends.
- Is the TEF6721HL/V1,557 still in production?
No, the TEF6721HL/V1,557 is no longer manufactured by NXP USA Inc.
