ATR4251C Low-noise, High-dynamic-range AM/FM Antenna Amplifier IC
■The Atmel® ATR4251C is an integrated low-noise AM/FM antenna amplifier with integrated AGC in BiCMOS2S technology. The device is designed in particular for car applications, and is suitable for windshield and roof antennas.
●Functional Description
■The Atmel® ATR4251C is an integrated AM/FM antenna impedance matching circuit. It compensates cable losses between the antenna (for example windshield, roof, or bumper antennas) and the car radio which is usually placed far away from the antenna.
■AM refers to the long wave (LW), medium wave (MW) and short wave (SW) frequency bands (150kHz to 30MHz) that are usually used for AM transmission, and FM means any of the frequency bands used world-wide for FM radio broadcast (70MHz to 110MHz).
■Two separate amplifiers are used for AM and FM due to the different operating frequencies and requirements in the AM and FM band. This allows the use of separate antennas (for example, windshield antennas) for AM and FM. Of course, both amplifiers can also be connected to one antenna (for example, the roof antenna).
■Both amplifiers have automatic gain control (AGC) circuits in order to avoid overdriving the amplifiers under large-signal conditions. The two separate AGC circuits prevent strong AM signals from blocking FM stations, and vice versa.
●Features：
■High dynamic range for AM and FM
■Integrated AGC for AM and FM
■High intercept point 3rd order for FM
■FM amplifier adjustable to various cable impedances
■High intercept point 2nd and 3rd order for AM
■Low noise output voltage
■Low power consumption
■Low output impedance AM
|
|
|
|
Datasheet |
|
|
|
|
Please see the document for details |
|
|
|
|
|
|
|
|
QFN24;SSO20 |
|
|
English Chinese Chinese and English Japanese |
|
|
11/14 |
|
|
Revision 9258E |
|
|
9258E |
|
|
1.1 MB |
- +1 Like
- Add to Favorites
Recommend
- ATP SATA SSDs Qualify for Compatibility and Interoperability with Microchip‘s New Tri-Mode Storage Adapters
- Acroview universal programmer heavyweight IC programming of the 32-bit microcontroller N32G4FRREL7
- How to Buy the Smart TV WIFI Module?
- EPC‘s Power Conversion Demonstration Board Delivers Best-in-Class Power Density of 1226 W/in3
- 9 Amazing Embedded WIFI Camera Module Hacks
- EPC Launches 2kW, 48 V/12 V DC-DC converter for More Efficient, Smaller, Faster, Bidirectional Converters for Mild-Hybrid Cars
- EPC Launches Scalable DC-DC Demonstration Board for Mild-Hybrid Cars and Battery Power Backup Units
- Acroview Programmer AP8000 Support the Programming of TI Texas Instruments Fuel Gauge BQ27500DRZR-V130
All reproduced articles on this site are for the purpose of conveying more information and clearly indicate the source. If media or individuals who do not want to be reproduced can contact us, which will be deleted.
Integrated Circuits
Discrete Components
Connectors & Structural Components
Assembly UnitModules & Accessories
Power Supplies & Power Modules
Electronic Materials
Instrumentation & Test Kit
Electrical Tools & Materials
Mechatronics
Processing & Customization
