AFE8405 datasheet(1/152 Pages) TI

Part #	AFE8405

Description	14-BIT, 85-MSPS, SINGLE-ADC, 8-CHANNEL WIDEBAND RECEIVER

PDF	152 Pages

Scroll/Zoom	100%

Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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1 / 152 page

1

Introduction

1.1 FEATURES

1.2 APPLICATIONS

Contents

AFE8405

14-BIT, 85-MSPS, SINGLE-ADC, 8-CHANNEL WIDEBAND RECEIVER

www.ti.com

SLWS212 – OCTOBER 2008

–

Individual Channel-Specific Power

• 14-Bit 85-MSPS High-Performance Single ADC

Measurements

• At f

in = 140 MHz, SNR ≥ 71 dBFS,

–

A Dedicated Final AGC

SFDR

≥ 79 dBc

• Test Bus to Monitor Data at Different Stages of

• At f

in = 70 MHz, SNR ≥ 73 dBFS,

the DDC Signal Path

SFDR

≥ 85 dBc

• 3.3-V Analog Supplies, 1.5-V Digital Core

• Independent Clocks for ADC and DDC With

Supply, 3.3-V Digital I/O Supply

Built-In FIFO

• 484-Ball Plastic BGA (23 mm × 23 mm) With

• Programmable Closed-Loop VGA Control With

1,0-mm Pitch

6-Bit Outputs for ADC

• Power Dissipation (Eight Active DDC

• Received Total Wideband Power (RTWP)

Channels): 2.3 W

Measurement for the Composite Power Across

Carriers With Programmable Time Window for

Measurement

• 8 UMTS Digital Downconverter (DDC)

• Wireless Base Station Receiver

Channels or 16 CDMA/TD-SCDMA DDC

• Multi-Carrier Digital Receiver

Channels With Programmable 18-Bit Filter

• UMTS (8 Carriers-1 Sector)

Coefficients

• CDMA (16 Carriers-1 Sector)

• Each DDC Channel Provides:

• TD-SCDMA (16 Carriers-1 Sector)

–

Real or Complex DDC Inputs

–

UMTS Mode Rx Filtering: 6-Stage CIC (m =

• Digital Radio Receivers

1 or 2), up to 40-Tap CFIR, up to 64-Tap

• Wideband Receivers

PFIR

• Software Radios

–

CDMA Mode Rx Filtering: 6-Stage CIC (m =

• Wireless Local Loop

1 or 2), up to 64-Tap CFIR, up to 64-Tap

PFIR

• Intelligent Antenna Systems

1

Introduction

............................................... 1

4.5

Factory Test and No-Connect Signals

.............. 15

1.1

FEATURES

........................................... 1

4.6

Power and Ground Signals

.......................... 15

1.2

APPLICATIONS

...................................... 1

4.7

Digital Supply Monitoring

............................ 16

2

General Description

..................................... 3

4.8

JTAG

................................................ 16

3

SPECIFICATIONS

........................................ 4

5

Typical Characteristics

................................ 17

3.1

PACKAGE ORDERING INFORMATION

............. 4

6

ANALOG-TO-DIGITAL CONVERTERS

.............. 24

3.2

ABSOLUTE MAXIMUM RATINGS

................... 4

6.1

ADC Operation

...................................... 24

3.3

RECOMMENDED OPERATING CONDITIONS

...... 4

6.2

ADC Input Configuration

............................ 24

3.4

THERMAL CHARACTERISTICS

..................... 5

6.3

ADC Input Voltage Overstress

...................... 28

3.5

POWER DISSIPATION

............................... 5

6.4

ADC Reference Circuit

.............................. 28

3.6

ANALOG ELECTRICAL CHARACTERISTICS

....... 6

6.5

ADC Clock Input

..................................... 28

3.7

DIGITAL CHIP DC CHARACTERISTICS

............ 8

7

RECEIVE DIGITAL SIGNAL PROCESSING

........ 30

3.8

DIGITAL CHIP AC TIMING CHARACTERISTICS

... 9

7.1

Receive Input Interface

.............................. 30

4

AFE8405 PINS

........................................... 10

7.2

DDC Organization

................................... 43

4.1

Analog Section Signals

.............................. 10

8

AFE8405 GENERAL CONTROL

...................... 73

8.1

Microprocessor Interface Control Data, Address,

4.2

Digital Receive Section Signals

..................... 11

and Strobes

......................................... 73

4.3

Microprocessor Signals

............................. 14

8.2

Synchronization Signals

............................. 76

4.4

JTAG Signals

........................................ 15

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this document.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

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