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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Layout

RF circuits working at high frequencies are very sensitive to the physical layout of the PCB. Chipcon has carefully optimised the layout of the CC1000PP in order to provide good RF performance. Chipcon strongly recommends that you use this layout as it is, and that you do not attempt to modify it.

LO leakage is a critical parameter. To meet the ETSI requirement of –57dBm, coupling from the VCO to the antenna or the matching network must be carefully controlled. The VCO inductor must be of the specified type and be mounted with the correct alignment if LO leakage is to meet specifications. The L101 VCO inductor should be oriented with the thick white stripe facing the crystal. To prevent coupling via the power supply, the specified decoupling capacitors must be mounted as shown.

Figure 4. Top and bottom PCB layout, top silkscreen

Antennas

The CC1000PP can be used together with any type of single-sidedantenna. Loop antennas can also be used by grounding one side. If the antenna’s impedance is not close to 50 ohms, matching components should be used to match it to 50 ohms. Aquarter-wavewire antenna can be used directly by removing pins 1, 2 and 3 from P2 and soldering in a piece of wire of the correct length (one quarter wavelength).

Frequency

¼ wavelength

 

 

433 MHz

16.4 cm

 

 

868 MHz

8.2 cm

 

 

915 MHz

7.8 cm

 

 

Table 2: 1/4 wavelength for common frequencies

For more information about antennas, please see application note AN003.

Bill of materials

The CC1000 is designed to be used together with low cost passive components. The components specified for the CC1000PP are the same as those listed in the data sheet. The only critical component is the VCO inductor, which must be the exact type listed in order for LO leakage to meet specifications. All other capacitors and inductors are non-critical,and any manufacturer or type may be used as long as they match the specifications in the component list. The boards manufactured by Chipcon uses CoilcraftHQ-seriesinductors, some of the inductor values may not be available from all manufacturers. Substituting nearby values may be possible.

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Bill of materials, CC1000PP-433

CC1000PP-433

Reference

Description

Value /

Part

 

 

tolerance

 

 

 

 

 

C1

Capacitor, tantal

3.3µF

C_3U3_TAN_B

 

 

 

 

C6

Capacitor 0603

33nF, 10%

C_33N_0603_X7R_K_25

 

 

 

 

C10

Capacitor 0603

12pF, 5%

C_12P_0603_NP0_J_50

 

 

 

 

C11

Capacitor 0603

220pF, 5%

C_220P_0603_NP0_J_50

 

 

 

 

C12

Capacitor 0603

1nF, 10%

C_1N0_0603_X7R_K_50

 

 

 

 

C13

Capacitor 0603, general

 

No Not Mount

 

 

 

 

C14

Capacitor 0603

68pF, 5%

C_68P_0603_NP0_J_50

 

 

 

 

C31

Capacitor 0603

15pF, 5%

C_15P_0603_NP0_J_50

 

 

 

 

C41

Capacitor 0603

8.2pF,

C_8P2_0603_NP0_C_50

 

 

±0.25pF

 

 

 

 

 

C42

Capacitor 0603

5.6pF,

C_5P2_0603_NP0_C_50

 

 

±0.25pF

 

 

 

 

 

C71

Capacitor 0603

22pF, 5%

C_22P_0603_NP0_J_50

 

 

 

 

C72

Capacitor 0603

15pF, 5%

C_15P_0603_NP0_J_50

 

 

 

 

C171

Capacitor 0603

18pF, 5%

C_18P_0603_NP0_J_50

 

 

 

 

C181

Capacitor 0603

22pF, 5%

C_22P_0603_NP0_J_50

 

 

 

 

C210

Capacitor 0603

1.0nF, 10%

C_1N0_0603_X7R_K_50

 

 

 

 

C281

Capacitor 0603

1.0nF, 10%

C_1N0_0603_X7R_K_50

 

 

 

 

L32

Inductor 0805

68nH, 5%

L_68N_0805_J

 

 

 

 

L41

Inductor 0805

6.2nH, 5%

L_6N2_0805_J

 

 

 

 

L71

Inductor 0805

10nH, 5%

L_10N_0805_J

 

 

 

 

L101

Inductor 0805

33nH, 5%

L_33N_0805_J KOA

 

 

 

KL732ATE33NJ

 

 

 

 

L210

EMI filter bead

 

BLM18HG102SN1D, Murata

 

 

 

 

P1

Pin-rowconnector

 

CON6_MALE

 

 

 

 

P2

Pin-rowconnector

 

CON6_MALE

 

 

 

 

R131

Resistor 0603

82kΩ, 1%

R_82K_0603_F

 

 

 

 

R281

Resistor 0603

27kΩ, 2%

R_27K_0603_G

 

 

 

 

U1

Single chip transceiver

 

CC1000

 

 

 

 

X1

Crystal, HC49-SMD

 

X14.7456MHz 10/10/10/16,

 

 

 

(16pF load)

 

 

 

 

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Bill of materials, CC1000PP-868

CC1000PP-868

Reference

Description

Value

Part

 

 

 

 

C1

Capacitor, tantal

3.3µF

C_3U3_TAN_B

 

 

 

 

C6

Capacitor 0603

33nF, 10%

C_33N_0603_X7R_K_25

 

 

 

 

C10

Capacitor 0603

12pF, 5%

C_12P_0603_NP0_J_50

 

 

 

 

C11

Capacitor 0603

 

Do not mount

 

 

 

 

C12

Capacitor 0603

1nF, 10%

C_1N0_0603_X7R_K_50

 

 

 

 

C13

Capacitor 0603

330pF, 5%

C_330P_0603_NP0_J_50

 

 

 

 

C14

Capacitor 0603

8.2pF, ±0.25pF

C_8P2_0603_NP0_C_50

 

 

 

 

C31

Capacitor 0603

10pF, 5%

C_10P_0603_NP0_J_50

 

 

 

 

C41

Capacitor 0603

 

Do not mount

 

 

 

 

C42

Capacitor 0603

4.7pF, ±0.25pF

C_4P7_0603_NP0_C_50

 

 

 

 

C71

Capacitor 0603

8.2pF, ±0.25pF

C_8P2_0603_NP0_C_50

 

 

 

 

C72

Capacitor 0603

6.8pF, ±0.25pF

C_6P8_0603_NP0_C_50

 

 

 

 

C171

Capacitor 0603

18pF, 5%

C_18P_0603_NP0_J_50

 

 

 

 

C181

Capacitor 0603

22pF, 5%

C_22P_0603_NP0_J_50

 

 

 

 

C210

Capacitor 0603

 

Do not mount

 

 

 

 

C281

Capacitor 0603

1nF, 10%

C_1N0_0603_X7R_K_50

 

 

 

 

L32

Inductor 0805

120nF, 5%

L_120N_0805_J

 

 

 

 

L41

Inductor 0805

2.5nH, 5%

L_2N5_0805_J

 

 

 

 

L71

Inductor 0805

5.6nH, 5%

L_5N6_0805_J

 

 

 

 

L101

Inductor 0805

4.7nH, 5%

L_4N7_0805_J, KOA

 

 

 

KL732ATE4N7C

 

 

 

 

L210

EMI filter bead

 

BLM18HG102SN1D, Murata

 

 

 

 

P1

Pin-rowconnector

 

CON6_MALE

 

 

 

 

P2

Pin-rowconnector

 

CON6_MALE

 

 

 

 

R131

Resistor 0603

82kΩ, 1%

R_82K_0603_F

 

 

 

 

R281

Resistor 0603

27kΩ, 2%

R_27K_0603_G

 

 

 

 

U1

Single chip

 

CC1000

 

transceiver

 

 

 

 

 

 

X1

Crystal, HC49-SMD

 

X14.7456MHz 10/10/10/16,

 

 

 

(16pF load)

 

 

 

 

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