Texas Instruments CC2480A1RTCR, CC2480 Datasheet

Z-Accel 2.4 GHz ZigBee® Processor

Accelerate your ZigBee Development

Applications

CC2480

• ZigBee™ systems

• Home/Building automation

• Industrial control and monitoring

Description

The

CC2480

is a cost-effective, low power, Z-Accel ZigBee Processor that provides full ZigBee functionality with a minimal development effort.

Z-Accel is a solution where TI’s ZigBee stack, Z-Stack, runs on a ZigBee Processor and the application runs on an external microcontroller.

CC2480

The processing intensive ZigBee protocol tasks, and leaves the resources of the application microcontroller free to handle the application.

Z-Accel makes it easy to add ZigBee to new or existing products at the same time as it provides great flexibility in choice of microcontroller.

CC2480

an SPI or UART interface. There is no need to learn a new microcontroller or new tools.

CC2480

MSP430.

(formerly known as CCZACC06)

handles all the timing critical and

interfaces any microcontroller through

can for example be combined with an

• Low power wireless sensor networks

• Set-top boxes and remote controls

• Automated Meter Reading

CC2480

has only 10 API calls to learn, which drastically simplifies the development of ZigBee applications.

supports TI’s SimpleAPI. SimpleAPI

Key Features

• Simple integration of ZigBee into any design

• Running the mature and stable ZigBee 2006 compliant TI Z-Stack

• SPI or UART interface to any microcontroller running the application

• Simple API and full ZigBee API supported

• Can implement any type of ZigBee device:

Coordinator, Router or End Device

• Automatically enters low power mode (<0.5 uA) in idle periods when configured as End Device

• Radio

o Fully integrated and robust IEEE

802.15.4-compliant 2.4 GHz DSSS RF transceiver

o Excellent receiver sensitivity and

best in class robustness to interferers

• Power Supply

o Wide supply voltage range (2.0V –

3.6V)

o Low current consumption (RX: 27

mA, TX: 27 mA) and fast transition times.

• External System

o Very few external components o RoHS compliant 7x7mm QLP48

package

• Peripherals and Supporting Functions

o Port expander with 4 general I/O

pins, two with increased sink/source capability

o Battery monitor and temperature

sensor

o 7-12 bits ADC with two channels o Robust power-on-reset and brown-

out-reset circuitry

• Tools and Development

o Packet sniffer PC software o Reference designs

CC2480 Data Sheet SWRS074A Page 1 of 43

CC2480

Table Of Contents

APPLICATIONS..............................................................................................................................................1

DESCRIPTION ................................................................................................................................................1

KEY FEATURES.............................................................................................................................................1

TABLE OF CONTENTS.................................................................................................................................2

1 ABBREVIATIONS................................................................................................................................4

2 REFERENCES...................................................................................................................................... 5

3 ABSOLUTE MAXIMUM RATINGS..................................................................................................6

4 OPERATING CONDITIONS...............................................................................................................6

5 ELECTRICAL SPECIFICATIONS....................................................................................................7

5.1 GENERAL CHARACTERISTICS ................................................................................................................8

5.2 RF RECEIVE SECTION ...........................................................................................................................9

5.3 RF TRANSMIT SECTION......................................................................................................................... 9

5.4 32 MHZ CRYSTAL OSCILLATOR..........................................................................................................10

5.5 32.768 KHZ CRYSTAL OSCILLATOR....................................................................................................10

5.6 32 KHZ RC OSCILLATOR.....................................................................................................................11

5.7 16 MHZ RC OSCILLATOR ...................................................................................................................11

5.8 FREQUENCY SYNTHESIZER CHARACTERISTICS ...................................................................................12

5.9 ANALOG TEMPERATURE SENSOR........................................................................................................12

5.10 ADC ...................................................................................................................................................12

5.11 CONTROL AC CHARACTERISTICS........................................................................................................14

5.12 SPI AC CHARACTERISTICS .................................................................................................................15

5.13 PORT OUTPUTS AC CHARACTERISTICS...............................................................................................15

5.14 DC CHARACTERISTICS ........................................................................................................................15

6 PIN AND I/O PORT CONFIGURATION ........................................................................................17

7 CIRCUIT DESCRIPTION ................................................................................................................. 19

8 APPLICATION CIRCUIT.................................................................................................................20

8.1 INPUT / OUTPUT MATCHING................................................................................................................. 20

8.2 BIAS RESISTORS ..................................................................................................................................20

8.3 CRYSTAL.............................................................................................................................................20

8.4 VOLTAGE REGULATORS ......................................................................................................................20

8.5 POWER SUPPLY DECOUPLING AND FILTERING......................................................................................21

9 PERIPHERALS...................................................................................................................................23

9.1 RESET .................................................................................................................................................23

9.2 I/O PORTS............................................................................................................................................ 23

9.3 ADC...................................................................................................................................................25

9.4 RANDOM NUMBER GENERATOR .........................................................................................................27

9.5 USART...............................................................................................................................................28

10 RADIO..................................................................................................................................................29

10.1 IEEE 802.15.4 MODULATION FORMAT...............................................................................................30

10.2 DEMODULATOR, SYMBOL SYNCHRONIZER AND DATA DECISION .......................................................31

10.3 FRAME FORMAT..................................................................................................................................31

10.4 SYNCHRONIZATION HEADER ...............................................................................................................32

10.5 MAC PROTOCOL DATA UNIT ...............................................................................................................32

10.6 FRAME CHECK SEQUENCE ................................................................................................................... 32

10.7 LINEAR IF AND AGC SETTINGS .......................................................................................................... 33

10.8 CLEAR CHANNEL ASSESSMENT...........................................................................................................33

10.9 VCO AND PLL SELF-CALIBRATION.................................................................................................... 33

10.10 INPUT / OUTPUT MATCHING................................................................................................................33

10.11 SYSTEM CONSIDERATIONS AND GUIDELINES...................................................................................... 34

10.12 PCB LAYOUT RECOMMENDATION...................................................................................................... 35

10.13 ANTENNA CONSIDERATIONS...............................................................................................................35

CC2480 Data Sheet SWRS074A Page 2 of 43

11 VOLTAGE REGULATORS...............................................................................................................36

11.1 VOLTAGE REGULATORS POWER-ON....................................................................................................36

12 PACKAGE DESCRIPTION (QLP 48)..............................................................................................37

12.1 RECOMMENDED PCB LAYOUT FOR PACKAGE (QLP 48)...................................................................... 38

12.2 PACKAGE THERMAL PROPERTIES......................................................................................................... 38

12.3 SOLDERING INFORMAT ION ..................................................................................................................38

12.4 TRAY SPECIFICATION ..........................................................................................................................38

12.5 CARRIER TAPE AND REEL SPECIFICA TION............................................................................................ 38

13 ORDERING INFORMATION...........................................................................................................40

14 GENERAL INFORMATION.............................................................................................................41

14.1 DOCUMENT HISTORY ..........................................................................................................................41

15 ADDRESS INFORMATION.............................................................................................................. 41

16 TI WORLDWIDE TECHNICAL SUPPORT...................................................................................41

CC2480

CC2480 Data Sheet SWRS074A Page 3 of 43

1 Abbreviations

ADC Analog to Digital Converter

AES Advanced Encryption Standard

AGC Automatic Gain Control

API Application Programming Interface

ARIB Association of Radio Industries and

Businesses

BOD Brown Out Detector

BOM Bill of Materials

CCA Clear Channel Assessment

CFR Code of Federal Regulations

CPU Central Processing Unit

CRC Cyclic Redundancy Check

CSMA-CA Carrier Sense Multiple Access with

Collision Avoidance

CW Continuous Wave

DAC Digital to Analog Converter

DC Direct Current

DNL Differential Nonlinearity

DSM Delta Sigma Modulator

DSSS Direct Sequence Spread Spectrum

EM Evaluation Module

ENOB Effective Number of bits

ESD Electro Static Discharge

ESR Equivalent Series Resistance

ETSI European Telecommunications

Standards Institute

EVM Error Vector Magnitude

FCC Federal Communications Commission

FCF Frame Control Field

FCS Frame Check Sequence

I/O Input / Output

I/Q In-phase / Quadrature-phase

IEEE Institute of Electrical and Electronics

Engineers

IF Intermediate Frequency

INL Integral Nonlinearity

ISM Industrial, Scientific and Medical

JEDEC Joint Electron Device Engineering

Council

KB 1024 bytes

kbps kilo bits per second

LFSR Linear Feedback Shift Register

LNA Low-Noise Amplifier

LO Local Oscillator

LQI Link Quality Indication

LSB Least Significant Bit / Byte

CC2480

LSB Least Significant Byte

MAC Medium Access Control

MISO Master In Slave Out

MOSI Master Out Slave In

MPDU MAC Protocol Data Unit

MSB Most Significant Byte

MUX Multiplexer

NA Not Available

NC Not Connected

O-QPSK Offset - Quadrature Phase Shift Keying

PA Power Amplifier

PCB Printed Circuit Board

PER Packet Error Rate

PHY Physical Layer

PLL Phase Locked Loop

PM{0-3} Power Mode 0-3

POR Power On Reset

PWM Pulse Width Modulator

QLP Quad Leadless Package

RAM Random Access Memory

RC Resistor-Capacitor

RCOSC RC Oscillator

RF Radio Frequency

RoHS Restriction on Hazardous Substances

RSSI Receive Signal Strength Indicator

RX Receive

SCK Serial Clock

SFD Start of Frame Delimiter

SHR Synchronization Header

SINAD Signal-to-noise and distortion ratio

SPI Serial Peripheral Interface

SRAM Static Random Access Memory

ST Sleep Timer

T/R Tape and reel

T/R Transmit / Receive

TBD To Be Decided / To Be Defined

THD Total Harmonic Distortion

TI Texas Instruments

TX Transmit

UART Universal Asynchronous

USART Universal Synchronous/Asynchronous

VGA Variable Gain Amplifier

XOSC Crystal Oscillator

Receiver/Transmitter

CC2480 Data Sheet SWRS074A Page 4 of 43

2 References

IEEE std. 802.15.4 - 2006: Wireless Medium Access Control (MAC) and Physical Layer (PHY)

[1]

specifications for Low Rate Wireless Personal Area Networks (LR-WPANs).

http://standards.ieee.org/getieee802/download/802.15.4-2006.pdf

CC2480 Interface Specification

[2]

http://www.ti.com/lit/pdf/swra175

CC2480

CC2480 Data Sheet SWRS074A Page 5 of 43

CC2480

3 Absolute Maximum Ratings

Under no circumstances must the absolute maximum ratings given in Table 1 be violated. Stress exceeding one or more of the limiting values may cause permanent damage to the device.

Table 1: Absolute Maximum Rati ngs

Parameter Min Max Units Condition

Supply voltage, VDD –0.3 3.9 V All supply pins must have the same voltage

Voltage on any digital pin –0.3 VDD+0.3,

Voltage on the 1.8V pins (pin no. 22, 25-40 and 42)

Input RF level 10 dBm

Storage temperature range –50 150

Reflow soldering temperature 260

ESD

–0.3 2.0 V

max 3.9

<500 V

700 V

200 V

Device not programmed

°C

According to IPC/JEDEC J-STD-020C

°C

On RF pads (RF_P, RF_N, AVDD_RF1, and AVDD_RF2), according to Human Body Model, JEDEC STD 22, method A114

All other pads, according to Human Body Model, JEDEC STD 22, method A114

According to Charged Device Model, JEDEC STD 22, method C101

Caution! ESD sensitive device. Precaution should be used

when handling the device in order to prevent permanent damage.

4 Operating Conditions

The operating conditions for

Parameter Min Max Unit Condition

Operating ambient temperature range, T

Operating supply voltage 2.0 3.6 V The supply pins to the radio part must be driven

CC2480

are listed in Table 2.

Table 2: Operating Conditi ons

-40 85

°C

by the 1.8 V on-chip regulator

CC2480 Data Sheet SWRS074A Page 6 of 43

5 Electrical Specifications

CC2480

Measured on Texas Instruments

CC2480

EM reference design with TA=25°C and VDD=3.0V

unless stated otherwise.

Table 3: Electrical Specifications

Parameter Min Typ Max Unit Condition Current Consumption

CPU Active Mode, 16 MHz, low CPU activity

CPU Active Mode, 16 MHz, medium CPU activity

CPU Active Mode, 16 MHz, high CPU activity

CPU Active Mode, 32 MHz, low CPU activity

CPU Active Mode, 32 MHz, medium CPU activity

CPU Active Mode, 32 MHz, high CPU activity

CPU Active and RX Mode 26.7 mA

CPU Active and TX Mode, 0dBm 26.9 mA

Power mode 1 190

Power mode 2 0.5

Power mode 3 0.3

Peripheral Current Consumption

Sleep Timer 0.2

ADC 1.2 mA

Flash write 3 mA

Flash erase 3 mA

4.3 mA

5.1 mA

5.7 mA

9.5 mA

10.5 mA

12.3 mA

Digital regulator on. 16 MHz RCOSC running. No radio, crystals, or peripherals active.

Low CPU activity: no flash access (i.e. only cache hit), no RAM access.

Digital regulator on. 16 MHz RCOSC running. No radio, crystals, or peripherals active.

Medium CPU activity: normal flash access access.

Digital regulator on. 16 MHz RCOSC running. No radio, crystals, or peripherals active.

High CPU activity: normal flash access, extensive RAM access and heavy CPU load.

32 MHz XOSC running. No radio or peripherals active. Low CPU activity : no flash access (i.e. only cache hit),

no RAM access

32 MHz XOSC running. No radio or peripherals active. Medium CPU activity: normal flash access

access.

32 MHz XOSC running. No radio or peripherals active. High CPU activity: normal flash access

access and heavy CPU load.

CPU running at full speed (32MHz), 32MHz XOSC running, radio in RX mode, -50 dBm input power. No peripherals active. Low CPU activity.

CPU running at full speed (32MHz), 32MHz XOSC running, radio in TX mode, 0dBm output power. No peripherals active. Low CPU activity.

Digital regulator on, 16 MHz RCOSC and 32 MHz crystal

µA

oscillator off. 32.768 kHz XOSC, POR and ST active. RAM retention.

Digital regulator off, 16 MHz RCOSC and 32 MHz crystal

µA

oscillator off. 32.768 kHz XOSC, POR and ST active. RAM retention.

No clocks. RAM retention. POR active.

µA

Adds to the figures above if the peripheral unit is activated

Including 32.753 kHz RCOSC.

µA

When converting.

Estimated value

, minor RAM

, extensive RAM

Normal Flash access means that the code used exceeds the cache storage so cache misses will

happen frequently.

CC2480 Data Sheet SWRS074A Page 7 of 43

5.1 General Characteristics

CC2480

Measured on Texas Instruments

CC2480

EM reference design with TA=25°C and VDD=3.0V

unless stated otherwise.

Table 4: General Characteristics

Parameter Min Typ Max Unit Condition/Note

Wake-Up and Timing

Power mode 1 Æ power mode 0

Power mode 2 or 3 Æ power mode 0

Active Æ TX or RX 32MHz XOSC initially OFF. Voltage regulator initially OFF

Active Æ TX or RX Voltage regulator initially OFF

Active Æ RX or TX 192

RX/TX turnaround 192

Radio part

RF Frequency Range 2400 2483.5 MHz Programmable in 1 MHz steps, 5 MHz

Radio bit rate 250 kbps As defined by [1]

4.1

120

525

320

µs

Digital regulator on, 16 MHz RCOSC and 32 MHz crystal oscillator off. Start-up of 16 MHz RCOSC.

Digital regulator off, 16 MHz RCOSC and 32 MHz crystal oscillator off. Start-up of regulator and 16 MHz RCOSC.

Time from enabling radio part in power mode 0, until TX or RX starts. Includes start-up of voltage regulator and crystal oscillator in parallel. Crystal ESR=16Ω.

Time from enabling radio part in power mode 0, until TX or RX starts. Includes start-up of voltage regulator.

Radio part already enabled. Time until RX or TX starts.

between channels for compliance with [1]

Radio chip rate

2.0 MChip/s As defined by [1]

CC2480 Data Sheet SWRS074A Page 8 of 43

5.2 RF Receive Section

CC2480

Measured on Texas Instruments

CC2480

EM reference design with TA=25°C and VDD=3.0V

unless stated otherwise.

Table 5: RF Receive Parameters

Parameter Min Typ Max Unit Condition/Note

Receiver sensitivity

Saturation (maximum input level)

Adjacent channel rejection

+ 5 MHz channel spacing

Adjacent channel rejection

- 5 MHz channel spacing

Alternate channel rejection

+ 10 MHz channel spacing

Alternate channel rejection

- 10 MHz channel spacing

Channel rejection

≥ + 15 MHz

≤ - 15 MHz

Co-channel rejection

Blocking / Desensitization

+ 5 MHz from band edge + 10 MHz from band edge + 20 MHz from band edge + 50 MHz from band edge

- 5 MHz from band edge

- 10 MHz from band edge

- 20 MHz from band edge

- 50 MHz from band edge

Spurious emission

30 – 1000 MHz 1 – 12.75 GHz

Frequency error tolerance ±140 ppm Difference between centre frequency of the received

Symbol rate error tolerance ±900 ppm Difference between incoming symbol rate and the

-92 dBm PER = 1%, as specified by [1]

Measured in 50 Ω single endedly through a balun.

[1] requires –85 dBm

10 dBm PER = 1%, as specified by [1]

Measured in 50 Ω single endedly through a balun.

[1] requires –20 dBm

-6 dB

-42

-29

-26

-22

-31

-36

-24

-25

−64

−75

Wanted signal -88dBm, adjacent modulated channel at +5 MHz, PER = 1 %, as specified by [1].

[1] requires 0 dB

Wanted signal -88dBm, adjacent modulated channel at -5 MHz, PER = 1 %, as specified by [1].

[1] requires 0 dB

Wanted signal -88dBm, adjacent modulated channel at +10 MHz, PER = 1 %, as specified by [1]

[1] requires 30 dB

Wanted signal -88dBm, adjacent modulated channel at -10 MHz, PER = 1 %, as specified by [1]

[1] requires 30 dB

Wanted signal @ -82 dBm. Undesired signal is an

802.15.4 modulated channel, stepped through all

channels from 2405 to 2480 MHz. Signal level for

PER = 1%. Values are estimated.

Wanted signal @ -82 dBm. Undesired signal is

802.15.4 modulated at the same frequency as the desired signal. Signal level for PER = 1%.

dBm

Wanted signal 3 dB above the sensitivity level, CW

dBm

jammer, PER = 1%. Measured according to EN 300

dBm

440 class 2.

dBm

dBm dBm dBm dBm

dBm

Conducted measurement in a 50 Ω single ended

dBm

load. Complies with EN 300 328, EN 300 440 class 2, FCC CFR47, Part 15 and ARIB STD-T-66.

RF signal and local oscillator frequency.

[1] requires minimum 80 ppm

internally generated symbol rate

[1] requires minimum 80 ppm

5.3 RF Transmit Section

Measured on Texas Instruments

CC2480

EM reference design with TA=25°C, VDD=3.0V, and

nominal output power unless stated otherwise.

CC2480 Data Sheet SWRS074A Page 9 of 43

Table 6: RF Transmit Parameters

Parameter Min Typ Max Unit Condition/Note

Nominal output power

Harmonics

harmonic

Spurious emission

30 - 1000 MHz

1– 12.75 GHz

1.8 – 1.9 GHz

5.15 – 5.3 GHz

EVM 11 % Measured as defined by [1]

Optimum load impedance

0 dBm

-50.7

-55.8

-54.2

-53.4

-47

-43

-58

-56

+ j164

Delivered to a single ended 50 Ω load through a balun.

[1] requires minimum –3 dBm

Measurement conducted with 100 kHz resolution bandwidth on

dBm

spectrum analyzer. Output Delivered to a single ended 50 Ω load

dBm

through a balun.

dBm

Maximum output power. Texas Instruments

dBm

EN 300 328, EN 300 440, FCC CFR47 Part 15 and ARIB STD-

dBm

T-66. Transmit on 2480MHz under FCC is supported by duty-cycling

dBm

The peak conducted spurious emission is -47 dBm @ 192 MHz

dBm

which is in an EN 300 440 restricted band limited to -54 dBm. All radiated spurious emissions are within the limits of ETSI/FCC/ARIB. Conducted spurious emission (CSE) can be reduced with a simple band pass filter connected between matching network and RF connector (1.8 pF in parallel with 1.6 nH reduces the CSE by 20 dB), this filter must be connected to good RF ground.

[1] requires max. 35 %

Ω

Differential impedance as seen from the RF-port (

RF_N) towards the antenna

CC2480

EM reference design complies with

RF_P and

5.4 32 MHz Crystal Oscillator

Measured on Texas Instruments

CC2480

EM reference design with TA=25°C and VDD=3.0V

unless stated otherwise.

Table 7: 32 MHz Crystal Oscillator Parameters

Parameter Min Typ Max Unit Condition/Note

Crystal frequency 32 MHz

Crystal frequency accuracy requirement

ESR 6 16 60

C0 1 1.9 7 pF Simulated over operating conditions

CL 10 13 16 pF Simulated over operating conditions

Start-up time 212 µs

- 40 40 ppm Including aging and temperature dependency, as specified by [1]

Simulated over operating conditions

Ω

5.5 32.768 kHz Crystal Oscillator

Measured on Texas Instruments

CC2480

EM reference design with TA=25°C and VDD=3.0V

unless stated otherwise.

This is for 2440MHz

CC2480 Data Sheet SWRS074A Page 10 of 43

Table 8: 32.768 kHz Crystal Oscillator Parameters

Parameter Min Typ Max Unit Condition/Note

Crystal frequency 32.768 kHz

Crystal frequency accuracy requirement

ESR 40 130

C0 0.9 2.0 pF Simulated over operating conditions

CL 12 16 pF Simulated over operating conditions

Start-up time 400 ms Value is simulated.

5.6 32 kHz RC Oscillator

–40 40 ppm Including aging and temperature dependency, as specified by [1]

Simulated over operating conditions

kΩ

CC2480

Measured on Texas Instruments

CC2480

EM reference design with TA=25°C and VDD=3.0V

unless stated otherwise.

Table 9: 32 kHz RC Oscillator parameters

Parameter Min Typ Max Unit Condition/Note

Calibrated frequency 32.753 kHz The calibrated 32 kHz RC Oscillator frequency

Frequency accuracy after calibration

Temperature coefficient +0.4

Supply voltage coefficient +3 % / V Frequency drift when supply voltage changes

Initial calibration time 1.7 ms

±0.2 % Value is estimated.

% / °C

is the 32 MHz XTAL frequency divided by 977

Frequency drift when temperature changes after calibration. Value is estimated.

after calibration. Value is estimated.

When the 32 kHz RC Oscillator is enabled, calibration is continuously done in the background as long as the 32 MHz crystal oscillator is running.

5.7 16 MHz RC Oscillator

Measured on Texas Instruments

CC2480

EM reference design with TA=25°C and VDD=3.0V

unless stated otherwise.

Table 10: 16 MHz RC Oscillator parameters

Parameter Min Typ Max Unit Condition/Note

Frequency 16 MHz The calibrated 16 MHz RC Oscillator

Uncalibrated frequency accuracy

Calibrated frequency accuracy

Start-up time 10 µs

Temperature coefficient -325

Supply voltage coefficient 28

Initial calibration time 50 µs When the 16 MHz RC Oscillator is enabled it

±18

±0.6 ±1

ppm / °C

ppm / mV

frequency is the 32 MHz XTAL frequency divided by 2

Frequency drift when temperature changes after calibration

Frequency drift when supply voltage changes after calibration

will be calibrated continuously when the 32MHz crystal oscillator is running.

CC2480 Data Sheet SWRS074A Page 11 of 43

5.8 Frequency Synthesizer Characteristics

CC2480

Measured on Texas Instruments

CC2480

EM reference design with TA=25°C and VDD=3.0V

unless stated otherwise.

Table 11: Frequency Synthesizer Parameters

Parameter Min Typ Max Unit Condition/Note

Phase noise

−116

−117

−118

PLL lock time

192

dBc/Hz dBc/Hz dBc/Hz

µs

Unmodulated carrier

At ±1.5 MHz offset from carrier At ±3 MHz offset from carrier At ±5 MHz offset from carrier

The startup time until RX/TX turnaround. The crystal oscillator is running.

5.9 Analog Temperature Sensor

Measured on Texas Instruments

CC2480

EM reference design with TA=25°C and VDD=3.0V

unless stated otherwise.

Table 12: Analog Temperature Sensor Parameters

Parameter Min Typ Max Unit Condition/Note

Output voltage at –40°C

Output voltage at 0°C

Output voltage at +40°C

Output voltage at +80°C

Temperature coefficient 2.45

Absolute error in calculated temperature

Error in calculated temperature, calibrated

Current consumption increase when enabled

0.648 V Value is estimated

0.743 V Value is estimated

0.840 V Value is estimated

0.939 V Value is estimated

mV/°C Fitted from –20°C to +80°C on estimated values.

–8

-2 0 2

280 µA

°C From –20°C to +80°C when assuming best fit for

absolute accuracy on estimated values: 0.743V at 0°C and 2.45mV / °C.

°C From –20°C to +80°C when using 2.45mV / °C,

after 1-point calibration at room temperature. Values are estimated. Indicated min/max with 1point calibration is based on simulated values for typical process parameters

5.10 ADC

Measured with T Instruments’

=25°C and VDD=3.0V. Note that other data may result when using Texas

CC2480

EM reference design.

Table 13: ADC Characteristics

Parameter Min Typ Max Unit Condition/Note

Input voltage 0 VDD V VDD is voltage on AVDD_SOC pin

Input resistance, signal 197 kΩ Simulated using 4 MHz clock speed.

Full-Scale Signal3 2.97 V Peak-to-peak, defines 0dBFS

Measured with 300 Hz Sine input and VDD as reference.

CC2480 Data Sheet SWRS074A Page 12 of 43

CC2480

Parameter Min Typ Max Unit Condition/Note

ENOB3 5.7 bits 7-bits setting.

Single ended input 7.5 9-bits setting.

9.3 10-bits setting.

10.8 12-bits setting.

Error! Bookmark not defined.

ENOB

Differential input 8.3 9-bits setting.

10.0 10-bits setting.

11.5 12-bits setting.

Useful Power Bandwidth 0-20 kHz 7-bits setting

THD3

-Single ended input -75.2 dB 12-bits setting, -6dBFS

-Differential input -86.6 dB 12-bits setting, -6dBFS

Signal To Non-Harmonic Ratio3

-Single ended input 70.2 dB 12-bits setting

-Differential input 79.3 dB 12-bits setting

Spurious Free Dynamic Range3

-Single ended input 78.8 dB 12-bits setting, -6dBFS

-Differential input 88.9 dB 12-bits setting, -6dBFS

CMRR, differential input <-84 dB 12- bit setting, 1 kHz Sine (0dBFS), limited by ADC

Crosstalk, single ended input <-84 dB 12- bit setting, 1 kHz Sine (0dBFS), limited by ADC

Offset -3 mV Mid. Scale

Gain error 0.68 %

DNL3 0.05 LSB 12-bits setting, mean

0.9 LSB 12-bits setting, max

INL3 4.6 LSB 12-bits setting, mean

13.3 LSB 12-bits setting, max

SINAD3 35.4 dB 7-bits setting.

Single ended input 46.8 dB 9-bits setting.

(-THD+N) 57.5 dB 10-bits setting.

66.6 dB 12-bits setting.

Error! Bookmark not defined.

SINAD

Differential input 51.6 dB 9-bits setting.

(-THD+N) 61.8 dB 10-bits setting.

70.8 dB 12-bits setting.

Conversion time 20

132

Power Consumption 1.2 mA

6.5 bits 7-bits setting.

resolution

40.7 dB 7-bits setting.

7-bits setting.

µs

9-bits setting.

µs

10-bits setting.

µs

12-bits setting.

µs

CC2480 Data Sheet SWRS074A Page 13 of 43

5.11 Control AC Characteristics

= -40°C to 85°C, VDD=2.0V to 3.6V if nothing else stated.

Table 14: Control Inputs AC Characteristics

Parameter Min Typ Max Unit Condition/Note

CC2480

System clock, f

SYSCLK

= 1/ f

SYSCLK

RESET_N low width

Interrupt pulse width

SYSCLK

16 32 MHz System clock is 32 MHz when crystal oscillator is used.

250 ns See item 1, Figure 1. This is the shortest pulse that is

ns See item 2, Figure 1.This is the shortest pulse that is

SYSCLK

RESET_N

GPIOx

System clock is 16 MHz when calibrated 16 MHz RC oscillator is used.

guaranteed to be recognized as a complete reset pin request. Note that shorter pulses may be recognized but will not lead to complete reset of all modules within the chip.

guaranteed to be recognized as an interrupt request. In PM2/3 the internal synchronizers are bypassed so this requirement does not apply in PM2/3.

Figure 1: Control Inputs AC Characteristics

CC2480 Data Sheet SWRS074A Page 14 of 43

+ 30 hidden pages

Texas Instruments CC2480A1RTCR, CC2480 Datasheet

Specifications and Main Features

Frequently Asked Questions

User Manual

5.3 RF Transmit Section

5.4 32 MHz Crystal Oscillator

5.5 32.768 kHz Crystal Oscillator

5.6 32 kHz RC Oscillator

5.7 16 MHz RC Oscillator

5.8 Frequency Synthesizer Characteristics

5.9 Analog Temperature Sensor