ATR2732M1-PBPW datasheet, PDF - EEWORLD Datasheet

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ATR2732M1-PBPW: DescriptionTelecom Circuit, 1-Func, BICMOS, 9 X 9 MM, 0.50 MM PITCH, LEAD FREE, VQFN-64; CategoryWireless rf/communication Telecom circuit; File Size299KB，15 Pages; ManufacturerAtmel (Microchip)

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ATR2732M1-PBPW Overview

Telecom Circuit, 1-Func, BICMOS, 9 X 9 MM, 0.50 MM PITCH, LEAD FREE, VQFN-64

ATR2732M1-PBPW Parametric

Parameter Name	Attribute value
Parts packaging code	QFN
package instruction	HVQCCN,
Contacts	64
Reach Compliance Code	unknown
JESD-30 code	S-XQCC-N64
length	9 mm
Number of functions	1
Number of terminals	64
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	UNSPECIFIED
encapsulated code	HVQCCN
Package shape	SQUARE
Package form	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Certification status	Not Qualified
Maximum seat height	1 mm
Nominal supply voltage	3.3 V
surface mount	YES
technology	BICMOS
Telecom integrated circuit types	TELECOM CIRCUIT
Temperature level	INDUSTRIAL
Terminal form	NO LEAD
Terminal pitch	0.5 mm
Terminal location	QUAD
width	9 mm
Base Number Matches	1

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Features

•

ATR2732M1 is a Special Version of ATR2732 Recommended for Automotive

•

Applications

Highly Integrated DAB Front-end Solution Covering Band III and L-band Reception

Convenient Internal Clock Generation, Single Reference Clock

Fractional PLL for VHF

Fully Integrated VCOs

High-precision Digitally Tunable Reference Oscillator

Integrated High-performance LNAs

Very Flexible Programming of the AGC

Automatically Aligned External Filter Tuning

Simple Three-wire Digital Control Interface for Easy Handling

Single Low Voltage (3.3V) Supply Operation

Low Current Consumption Due to Several Power-down Options

Small SMD Package (QFN 9 mm

9 mm)

Integrated DAB

One-chip Front

End

ATR2732M1

Summary

Preliminary

Applications

•

Commercial DAB Receivers

•

DAB Receiver Solutions for Car Radio Applications

•

Portable DAB Solutions

1. Description

The ATR2732M1 is a front-end monolithic integrated circuit, manufactured using

Atmel

’s silicon-germanium BiCMOS process (SiGMOS).

The ATR2732M1 carries out all functions of RF and IF processing, as well as the

clock-signal generation for these functions. Therefore, there is an integrated fractional

PLL, which, equivalent to most of the other functions, can be controlled via an external

digital bus. The RF functions include LNA, down-conversion mixing, amplifying, detec-

tion, and gain control. An external SAW filter is required in the signal path after the RF

functions. Additional amplifiers with detection and control functions are integrated IF

functions.

The device offers several tuning support functions, and was created to simplify the

design and manufacturing process. To this end, the number of external components

are minimal.

The part fits perfectly to Atmel’s DAB baseband processor ATR2740.

NOTE:

This is a summary document.

The complete document is available

under NDA. For more information,

please contact your local Atmel sales

office.

4993BS–DAB–10/07

ATR2732M1 [Preliminary]

3. Functional Description

The ATR2732M1 front-end IC was developed as a tuner IC for DAB reception. It was designed

for operation in L-band (1452 MHz to 1492 MHz) and VHF BIII (167 MHz to 240 MHz). The front

end contains gain-controlled LNAs, an L-band mixer with a corresponding PLL, and a VHF-band

mixer with a fractional PLL. The IF path contains three gain-controlled amplifiers. The front-end

IC allows the use of automatic tuning, which contains an adjustable input filter for VHF BIII and

an adjustable preselection filter for L-band and VHF reception.

The high dynamic range of the RF inputs, the use of gain-controlled amplifiers and gain-con-

trolled mixers in the RF and IF path, and an integrated driver for an external PIN diode

attenuator (VHF band) offer the possibility of handling even strong RF input signals.

The RF and IF parts include AGC functional blocks, which are needed for proper operation. The

thresholds are programmable via a simple serial bus.

The SPI bus is used to adjust and control all functional blocks.

The following sections briefly describe the major functions and features.

3.1

Main Functions

The following description gives a short overview of the general signal flow using the

ATR2732M1 front-end IC for reception of DAB signals. Numbers in the text refer to the numbers

Figure 3-1 on page 6.

A DAB signal in the L-band frequency range (1452 MHz to 1492 MHz) is received by the L-band

antenna; a separate LNA with a separate input is available for the VHF Band III signals. In both

cases, the signal is band-pass filtered using a filter with low insertion loss. The internal variable

gain LNA (for L-band (1), for Band III (3)) amplifies the signal. For the L-band reception, a sec-

ond band-pass filter is placed between the LNA output and mixer input at (2). This mixer

converts the L-band signal to the VHF BIII frequency range (167 MHz to 240 MHz). The signal

leaves the IC at point (4), followed by an external preselection filter.

This filter has an automatic tuner adjustment; that is, the tuning-voltage-generation block adjusts

the pass band of this filter to the desired frequency. After passing this filter, the RF signal is

down-mixed to a fixed IF frequency of 38.912 MHz. The IF signal is amplified and passed to a

SAW filter (5). The first IF variable-gain amplifier is followed by an IF filter at position (6). This fil-

ter is used as an anti-alias-filter. Finally, the DAB signal is amplified using the 2nd IF amplifier.

The signal leaves the front-end IC at (7), giving the signal to the DAB baseband IC.

4993BS–DAB–10/07

ATR2732M1-PBPW Related Products

	ATR2732M1-PBPW	ATR2732M1-PBQW
Description	Telecom Circuit, 1-Func, BICMOS, 9 X 9 MM, 0.50 MM PITCH, LEAD FREE, VQFN-64	Telecom Circuit, 1-Func, BICMOS, 9 X 9 MM, 0.50 MM PITCH, LEAD FREE, VQFN-64
Parts packaging code	QFN	QFN
package instruction	HVQCCN,	HVQCCN,
Contacts	64	64
Reach Compliance Code	unknown	unknown
JESD-30 code	S-XQCC-N64	S-XQCC-N64
length	9 mm	9 mm
Number of functions	1	1
Number of terminals	64	64
Maximum operating temperature	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C
Package body material	UNSPECIFIED	UNSPECIFIED
encapsulated code	HVQCCN	HVQCCN
Package shape	SQUARE	SQUARE
Package form	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Certification status	Not Qualified	Not Qualified
Maximum seat height	1 mm	1 mm
Nominal supply voltage	3.3 V	3.3 V
surface mount	YES	YES
technology	BICMOS	BICMOS
Telecom integrated circuit types	TELECOM CIRCUIT	TELECOM CIRCUIT
Temperature level	INDUSTRIAL	INDUSTRIAL
Terminal form	NO LEAD	NO LEAD
Terminal pitch	0.5 mm	0.5 mm
Terminal location	QUAD	QUAD
width	9 mm	9 mm
Base Number Matches	1	1

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