ATR4252-RAPW

ATR4252-RAPW Datasheet


The ATR4252 is a highly integrated high performance AM/FM antenna amplification IC with several features. The device has built-in AGC's for both AM and FM, antenna detection, a power supply regulator as well as additional pre-integrated peripherals.

Part Datasheet
ATR4252-RAPW ATR4252-RAPW ATR4252-RAPW (pdf)
Related Parts Information
ATR4252-RAQW ATR4252-RAQW ATR4252-RAQW
PDF Datasheet Preview
• Highly Integrated - All-in-one Active Antenna IC
• Integrated AGC for AM and FM
• Integrated Driver for AM and FM PIN Diodes
• Integrated Power Supply Regulator
• Integrated Antenna Sensor
• Separated AM LNA, AM Buffer and FM Amplifier
• High Dynamic Range for AM and FM
• Excellent Noise Performance
• 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
• Only Small Capacitor Values Necessary at AM AGC
• Large AM Frequency Range to Cover DRM Broadcast Signals

The ATR4252 is a highly integrated high performance AM/FM antenna amplification IC with several features. The device has built-in AGC's for both AM and FM, antenna detection, a power supply regulator as well as additional pre-integrated peripherals.

The ATR4252 is based on BICMOS technology. The device is designed in particular for car application and is suitable for active antennas located in several positions on the car such as bumpers, windscreen, mirrors or windows.

Figure

Block Diagram

AM LNA

BIAS REF AMPD GND2 BIAS

FMB 17

FME FMPD

AM LNA IN 23

AM LNA

AM LNA SOURCE

CASCODE FILTER

Voltage Supply

FM Amplifier

AGC FM
14 FMC 13 FMDET 12 FMTC

AM LNA OUT 26
11 VS

AMBIAS 27

AMBUF IN 28

AM Buffer

Antenna Detect

Over Voltage

AGC AM
10 AMOUT 9 GND1

ANTENNA VS VSTART OVDET VREGO AMTC1 AMTC2 AMDET SENSE FILTER

All-in-One IC Solution for Active Antennas ATR4252 Summary

NOTE This is a summary document. The complete document is available under NDA. For more information, please contact your local Atmel sales office.

Pin Configuration

Figure Pinning VQFN 4x5 / 28L

AM LNABIAS REF AMPD GND2 FMBIAS FMB FME FMPD
22 21 20 19 18 17 16 15

AM LNA IN 23
14 FMC

AM LNA SOURCE 24
13 FMDET

CASCODE FILTER 25 AM LNA OUT 26

ATR4252
12 FMTC 11 VS

AMBIAS 27
Ordering Information

Extended Type Number ATR4252-RAPW ATR4252-RAQW

Package VQFN 4x5 / 28L VQFN 4x5 / 28L

Remarks Taped on reel, 1.5k volume Taped on reel, 6k volume
8 ATR4252

Package Information

Top View D
28 1 PIN 1 ID

Side View

ATR4252
technical drawings according to DIN specifications

Dimensions in mm

Bottom View D2
22 23 e

Z 10:1

COMMON DIMENSIONS

Unit of Measure = mm

Symbol MIN NOM MAX NOTE

Package Drawing Contact Package VQFN_4x5_28L Exposed pad 2.6x3.6

Headquarters

Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131 USA Tel 1 408 441-0311 Fax 1 408 487-2600

International

Atmel Asia Unit 1-5 & 16, 19/F BEA Tower, Millennium City 5 418 Kwun Tong Road Kwun Tong, Kowloon Hong Kong Tel 852 2245-6100 Fax 852 2722-1369

Atmel Europe Le Krebs 8, Rue Jean-Pierre Timbaud BP 309 78054 Saint-Quentin-en-Yvelines Cedex France Tel 33 1-30-60-70-00 Fax 33 1-30-60-71-11

Atmel Japan 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan Tel 81 3-3523-3551 Fax 81 3-3523-7581

Product Contact

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Datasheet ID: ATR4252-RAPW 519302