Texas Instruments CC1000PP User Manual
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User Manual

Rev. 1.22

CC1000PP Plug and Play Module

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Table of contents

 

TABLE OF CONTENTS............................................................................................................

2

INTRODUCTION .......................................................................................................................

3

TYPICAL PERFORMANCE......................................................................................................

3

MECHANICAL DIMENSIONS AND COMPONENT PLACEMENT .........................................

4

CIRCUIT DIAGRAM..................................................................................................................

4

LAYOUT....................................................................................................................................

8

ANTENNAS...............................................................................................................................

8

BILL OF MATERIALS...............................................................................................................

8

BILL OF MATERIALS, CC1000PP-433........................................................................................

9

BILL OF MATERIALS, CC1000PP-868......................................................................................

10

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Introduction

The CC1000 is a very flexible and feature-richsingle-chipverylow-powerRF transceiver. Chipcon has designed the CC1000PPplug-and-playmodule to serve as a reference layout and enable very quick prototyping of an RF system.

The tiny CC1000PP module (28x20 mm) contains all RF components required for proper operation. This includes all the components mentioned in the CC1000 application circuit (see datasheet for details), as well as a reference crystal and a LC output filter. The layout is based on a standard, inexpensive 2-layer1.6mm thickFR-4PCB process, and has been carefully optimised by Chipcon. Components are mounted on one side only, the component side is used for signal routing, and the “solder” (reverse) side is used for a ground plane.

The CC1000PP layout can easily be used as a reference layout by importing it into a PCB CAD program. Chipcon provides the layout in the industry-standardGerber format. To download the files, please visit the Chipcon web site.

As the CC1000PP module contains only the components required for operation, the layout does not require major modifications when used to make a custom PCB, the user can merely delete the connector pins at each end of the module. But it is very important that the component placement, routing and vias are not altered if the same performance is to be achieved.

If a four layer PCB is to be used, either the two top layers should be used for the RF part, or layer 1 and 4. Layer 4 should then be the ground plane and layers 2 and 3 should be masked off.

In a ready-builtform, the CC1000PP is ideal for quick prototyping. The module may be connected to a prototyping board or PCB containing the rest of the system. The CC1000 can in this way be tested in a complete system without having to create a custom RF PCB layout.

Full documentation is provided for this module, including schematics and PCB layout. This information can be downloaded from Chipcon’s web site.

Typical performance

The table below shows typical performance at 3 V / 25°C.

Parameter

CC1000PP-433

CC1000PP-868

 

Unit

 

 

 

 

 

 

433 MHz

868 MHz

915 MHz

 

 

 

 

 

 

Sensitivity, 2.4 kBaud

-111

-107

-105

dBm

 

 

 

 

 

Output power, max

8

2.5

0.5

dBm

 

 

 

 

 

RF frequency accuracy

± 10

± 10

± 10

ppm

 

 

 

 

 

LO leakage

-68

-62

-59

dBm

 

 

 

 

 

2nd harmonic

<-36

<-30

<-40dBc

dBm

3rd harmonic

<-30

<-30

<-40dBc

dBm

Current consumption, TX

24

23

23

mA

 

 

 

 

 

Current consumption, RX

9.7

11.7

11.7

mA

 

 

 

 

 

Current consumption, PD

100

100

100

nA

 

 

 

 

 

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Mechanical dimensions and component placement

The CC1000PP module measures 28x20mm, and has been designed for a two-sided1.6mm thick PCB usingindustry-standardFR-4board material. Components are mounted on only one side, and the result is a very small, inexpensive module that can satisfy regulation requirements.

On each end of the board are connectors for interfacing the module to an external system. An external antenna, and a 2.1-3.6Vpower supply should be connected to the top connector (P2). The RSSI/IF signal can also be accessed via this connector. The lower connector (P1) can be used to connect an externalmicro-controllerto the dataand configuration interface of the CC1000.

Figure 1. Mechanical drawing of CC1000PP module (not to scale)

To ensure optimum RF performance, an external antenna should be soldered directly to the antenna terminals, or a 50 Ohm microstrip line should be used from the antenna terminal to the external antenna connector. For applications not demanding optimum RF performance, a pin-rowconnector may be used to connect the antenna signal to another PCB, but be aware that this can lead tonon-optimalsensitivity and output power, and that measurements using this arrangement should not be used to characterise the RF performance of CC1000. For more information on antennas, please see Chipcon application note AN003.

Circuit diagram

The circuit diagram of the CC1000PP is shown below. There are two versions of the CC1000PP module, the CC1000PP-433for 433 MHz operation, and theCC1000PP-868for operation in the 868 MHz and902-928MHz bands. Since the 868 version covers both the European 868 MHz band and the US902-928MHz band, one system can be used in both Europe and the US using the same hardware, changing the frequency by software control.

The circuit is similar to the application circuit shown in the CC1000 data sheet, with an added LC filter to reduce emitted harmonics.

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The value of the matching components, the VCO inductor and the LC filter will depend on the operating frequency. Bills of materials are supplied for both versions. For operating frequencies other than those listed here, please use the latest version of SmartRF® Studio to calculate the component values.

Pinouts for the connectors are given in the table below. The position of pin number 1 is indicated on the top silkscreen of the PCB. An abbreviated description of the pin functions of P1 is also printed on the silkscreen.

 

P1

 

P2

 

 

 

 

Pin

Function

Pin

Function

 

 

 

 

1

PALE

1

GND

 

 

 

 

2

PDATA

2

ANTENNA

 

 

 

 

3

PCLK

3

GND

 

 

 

 

4

DCLK

4

VDD (2.1 – 3.6 V)

 

 

 

 

5

DIO

5

RSSI / IF

 

 

 

 

6

CHP_OUT / LOCK

6

GND

 

 

 

 

Table 1. Connector pinouts

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Figure 2. Schematic for 433 MHz version

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Figure 3. Schematic for 868/915 MHz version

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