NANOTRON DS1804C Datasheet

nanoNET TRX Complementary Dispersive Delay Line (CDDL) DS1804C

Datasheet

Version 5.00

NA-04-0143-0276-5.00

Document Information

nanoNET CDDL DS1804C Datasheet

Document Information

Document Title: nanoNET CDDL DS1804C Datasheet Document Version: 5.00 Published (yyyy-mm-dd): 2007-08-21 Current Printing: 2007-8-21, 12:46 pm Document ID: NA-04-0143-0276-5.00 Document Status: Released

Disclaimer

Nanotron Technologies GmbH believes the information contained herein is correct and accurate at the time of release. Nanotron Technologies GmbH reserves the right to make changes without further notice to the product to improve reliability, function or design. Nanotron Technologies GmbH does not assume any liability or responsibility arising out of this product, as well as any application or circuits described herein, neither does it convey any license under its patent rights.

As far as possible, significant changes to product specifications and functionality will be provided in product specific Errata sheets, or in new versions of this document. Customers are encouraged to check the Nanotron website for the most recent updates on products.

Trademarks

nanoNET names are the sole property of their respective owners.

This document and the information contained herein is the subject of copyright and intellectual property rights under international convention. All rights reserv ed. No part of this documen t may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical or optical, in whole or in part, without the prior written permission of Nanotron Technologies GmbH.

is a registered trademark of Nanotron Technologies GmbH. All other trademarks, registered trademarks, and product

Life Support Policy

These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Nanotron Technologies GmbH customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Nanotron Technologies GmbH for any damages resulting from such improper use or sale.

Electromagnetic Interference / Compatibility

Nearly every electronic device is susceptible to electromagnetic interference (EMI) if inadequately shielded, designed, or otherwise configured for electromagnetic compatibility.

To avoid electromagnetic interference and/or compatibility conflicts, do not use this device in any facility where posted notices instruct you to do so. In aircraft, use of any radio frequency devices must be in accordance with applicable regulations. Hospitals or health care facilities may be using equipment that is sensitive to external RF energy.

With medical devices, maintain a minimum separation of 15 cm (6 inches) between pacemakers and wireless devices and some wireless radios may interfere with some hearing aids. If other personal medical devices are being used in the vicinity of wireless devices, ensure that the device has been adequately shielded from RF energy. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.

CAUTION! Electrostatic Sensitive Device. Precaution should be used when handling the device in order to prevent permanent damage.

nanoNET CDDL DS1804C Datasheet

Table of Contents

1 Definition of the CDDL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2 CDDL Detailed Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1 Balanced Filter (Top View) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.2 Balanced Filter (Bottom View). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.3 Housing Layout Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.4 Pad Landing (Top View) – Proposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.5 CDDL on PC board (Top View). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.6 Package Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3 Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.1 Test Board for Measurements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.2 Target Specifications and Measurement Results (03/2003). . . . . . . . . . . . . . . . . . . . . 6

4 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

5 Tape and Reel Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

5.1 Reel Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

5.2 Tape Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

5.2.1 Tape Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

5.2.2 Tape Running Direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

5.2.3 Leader Part and Vacant Position Specifications. . . . . . . . . . . . . . . . . . . . . . . . . 10

5.2.4 Tape Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

6 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Table of Contents

nanoNET CDDL DS1804C Datasheet

Intentionally Left Blank

Definition of the CDDL

nanoNET CDDL DS1804C Datasheet

1 Definition of the CDDL

The Complementary Dispersive Delay Line (CDDL) uses a highly sophisticated SAW (Surface Acoustic Wave) filter device that incorporates two filters within a single device. It is required for

the operation of the nanoNET TRX Transceiver.

While most devices have two ports, the CDDL consists of three ports, as shown below.

Port A = Pin B + Pin H

Pin A Pin B

Pin M

Port C

Pin L

Pin K Pin J Pin H Pin G

Figure 1: Complementary Dispersive Delay Line schematic

Pin C Pin D

ττ

DL1DL2

Pin E

Port B

Pin F

Upchirp and Downchirp

Port A is the common input port. The group delay of the filter from the input to one of the outputs is characteristic for these filters.

The respective impulse response for the dispersive Delay Line 2 (DL2) is an Upchirp (Linear frequency modulation, where frequency increases in time).

The other output is complementary to this, meaning that the impulse response for Delay Line 1 (DL1) is a Downchirp (Linear frequency modulation, where frequency decreases in time).

Within the nanoNET system, the CDDL is responsible for distinguishing between two possible incoming signals generated by another nanoNET TRX Transceiver. This received signal is either an Upchirp or a Downchirp. Both of these signals have the same center frequency and the same bandwidth so that the difference occurs only in the phase information.

This phase information is enough for the CDDL to compress a pulse at one output po rt and expand it at the other (that is, to extend the incoming signal to the doubled duration). In this way the CDDL acts like a matched filter for one of the possible transmitted pulses.

Balanced Mode

Also, within the nanoNET system, the CDDL is directly connected to an RF transceiver. As this transceiver has a differential output and input, the filter is used in a balanced mode.

According to this balanced mode, the housing has 6 signal pins – two on each side and two in the center on opposite sides. The detailed pinning is described on the Balanced Filter (Bottom View) on page 3 and Pad Landing (Top View) – Proposal on pa ge 4. All other pins are co nnected to ground and at least one of them should be connected with the ground of the PC board.

Definition of the CDDL

nanoNET CDDL DS1804C Datasheet

Pin Number Description

A GND

Table 1: CDDL pin description

B C GND D GND E

F G GND H

J GND K GND L

Ap, (port A, line P)

Bn, (port B, line N)

Bp, (port B, line P)

An, (port A, line N)

Cp, (port C, line P)

Cn, (port C, line N)

+ 12 hidden pages

NANOTRON DS1804C Datasheet

Specifications and Main Features

Frequently Asked Questions

User Manual

Document Information

Table of Contents

1 Definition of the CDDL