ANALOG DEVICES ADuCRF101 Service Manual

Precision Analog Microcontroller

Cortex™-M3 with ISM band Transceiver

ADuCRF101

SPI

INTERRUPT

CONTROLLER

64/128K BYTES

FLASH/EE

WAKE-UP
TIMER

LOW POWER PROCESSING

BAND GAP

REFERENCE

12/14-BIT
SAR ADC

TEMP

SENSOR

6 I/P
MUX

ADuCRF101

2xGEN PURPOSE

TIMERS

8/16K BYTES

SRAM

SERIAL

WIRE

I2C UART

PWM

GPIOS

POR

OSC

COMMUNICATIONS

PRECISION DATA

ACQUISITION

ON-CHIP PERIPHERALS

WATCHDOG

TIMER

CORTEX
M3 - CPU

LOW POWER
RF TRANSCEIVER

WIRELESS

WIRED

Rev. PrF

Information furnished by Analog
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infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change with
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.

One Technology Way, P.O. Box 9106, Norwood, MA
Tel: [phone]
Fax: [phone] © 2012 Analog Devices, Inc. All rights reserved.

Preliminary Technical Data

FEATURES

Analog I/O

6-Channel 14-bit or 12-bit ADC
Single ended and differential inputs
Programmable data rate up to 842kSPS
On-Chip Voltage Reference and Temperature Sensor

Power

Supply Range: 2.2 V to 3.6 V
Power Consumption

680 nA, in power down mode, non-retained state

1.6 µA, in power down mode, MCU memory and
transceiver memory retained

190 µA / MHz, Cortex in Active mode

12.8 mA transceiver in receive mode, Cortex in power
down mode

9 to 32 mA transceiver in transmit mode, Cortex in power

down mode

RF Transceiver

Frequency bands

862 MHz to 928 MHz

431 MHz to 464 MHz
Multiple Configurations supported
Receiver sensitivity (BER)

-107.5 dBm at 38.4 kbps, 2FSK
Single ended and differential PA
Low External BOM

Microcontroller

ARM Cortex™-M3 32-bit processor
Serial Wire download and debug
External Watch crystal for wakeup timer
16 MHz internal Oscillator with 8-way Programmable

Divider

FUNCTIONAL BLOCK DIAGRAM

Memory

128k/64k Bytes Flash/EE Memory, 16k/8k Bytes SRAM
20000 cycle Flash/EE endurance
10 year Flash/EE retention
In-circuit download via Serial Wire and UART

On-Chip Peripherals

2

UA RT, I

C and SPI Serial I/O
28-Pin GPIO Port
2 General Purpose Timers
Wake -up Ti mer
Watchdog Timer
8-Channel PWM

Packages and Temperature Range

64 lead LFCSP (9mm x 9mm) package –40°C to 85°C

Tools

Low-Cost Development System
Third-Party Compiler and emulator tool Support

APPLICATIONS

Battery powered wireless sensor
Medical telemetry systems
Industrial and home automation
Asset tracking
Security systems (access systems)
Health and fitness applications

Devices is believed to be accurate and reliable.

out notice. No license is granted by implication

Figure 1. ADuCF101 Block Diagram

www.analog.com

02062-9106, U.S.A.

ADuCRF101 Preliminary Technical Data

TABLE OF CONTENTS

Features .............................................................................................. 1

Functional block diagram ................................................................ 1

General Description ......................................................................... 3

Specifications ..................................................................................... 4

Analog Front End Specifications ................................................ 4

Current Consumption Specifications ........................................ 5

RF Link Specifications ................................................................. 6

General Electrical Specifications .................................................8

Absolute Maximum Ratings ............................................................9

ESD Caution...................................................................................9

Pin Configuration and Function Descriptions ........................... 10

Outline Dimensions ....................................................................... 13

Ordering Guide .......................................................................... 13

Rev. PrF | Page 2 of 13

Preliminary Technical Data ADuCRF101

GENERAL DESCRIPTION

The ADuCRF101 is a fully integrated data acquisition solution
designed for low power wireless applications. It features an 14­bit ADC, a low power Cortex™-M3 core from ARM®, a
431 MHz to 464 MHz and 862 MHz to 928 MHz RF transceiver,
and Flash/EE memory packaged in a 9 mm × 9 mm LFCSP.

The acquisition section consists of a 14 bit SAR ADC. The six
inputs can be configured as single ended or differential modes.
When configured in single ended mode, they can be used for
ratiometric measurements on sensors, powered when required
from the internal LDO. An internal battery monitor channel
and an on-chip temperature sensor are also available.

This wireless data acquisition system is designed to operate in
battery-powered applications where low power is critical. The
device can be configured in normal operating mode or different
low power modes under direct program control. In flexi mode
any peripheral can operate and wake-up the device. In
hibernate mode the internal wake-up timer remains active. In
shutdown mode only an external interrupt can wake-up the
device.

The ADuCRF101 integrates a low power Cortex-M3 core from
ARM. It is a 32-bit RISC machine, offering up to 1.25 DMIPS
peak performance. The Cortex-M3 MCU also has a flexible 14­channel DMA controller supporting communication
peripherals SPI, UART and I
Flash/EE memory and 8 kB /16 kB of SRAM are also provided
on-chip.

2

C. 64 kB / 128 kB of nonvolatile

A 16 MHz on-chip oscillator generates the system clock. This
clock can be internally divided for the CPU to operate at lower
frequency for power saving reasons. A low power internal 32
kHz oscillator is available and can used to clock the timers.
There are two general-purpose timers, a wake-up timer and a
system watchdog timer.

A range of communication peripherals can be configured as
required in a specific application. These peripherals include
UA RT, I

The RF transceiver communicates in the 431 MHz to 464 MHz
and 862 MHz to 928 MHz frequency bands using multiple
configurations.

On-chip factory firmware supports in-circuit serial download
via the UART while nonintrusive emulation and program
download is also supported via the serial wire interface. These
features are incorporated into a low cost development system
supporting this precision analog microcontroller family.

The parts operate from 2.2 V to 3.6 V and are specified over an
industrial temperature range of −40°C to +85°C.

Three versions of the ADuCRF101 are available:

14-bit ADC, 128k Byte Flash and 16k Byte SRAM,

12-bit ADC, 128k Byte Flash and 16k Byte SRAM,

12-bit ADC, 64k Byte Flash and 8k Byte SRAM,

2

C, and SPI, GPIO ports, PWM and RF transceiver.

Rev. PrF| Page 3 of 13

ADuCRF101 Preliminary Technical Data

Integral Nonlinearity

±1 ±4 LSB

V

= 1.25V from internal reference

DC Code Distribution

2 8 LSB

ADC input is a DC voltage

Gain Error

±1.25

±5 LSB

Signal-to-Noise Ratio (SNR)

68 80 dB

SPECIFICATIONS

ANALOG FRONT END SPECIFICATIONS

AVDD = IOVDD = VDDBAT1 = VDDBAT2 = 2.2 V to 3.6 V, V
T

to T

MAX

, unless otherwise noted. Default ADC sampling frequency: eight acquisition clocks and ADC clock frequency of 4 MHz.

MIN

Table 1. ADC channel specifications

12-bit model 14-bit model
Parameter Typ Max Typ Max Unit Test Conditions/Comments

DC ACCURACY Single ended input mode. Applies to all

Resolution 12 14 Bits

±2 ±8 LSB V
Differential Nonlinearity ±1 ±1 LSB Guaranteed no missing code

CALIBRATED ENDPOINT ERRORS Measured using the factory-set default

Offset Error ±0.6 ±2.5 LSB
Offset Error Match ±0.25 ±1 LSB

Gain Error Match ±0.25 ±1 LSB

DYNAMIC PERFORMANCE fIN = 10 kHz sine wave.

= 1.25 V internal reference, f

REF

= 16 MHz, all specifications TA =

CORE

ADC input channels.

REF

= 1.8V from LDO

REF

values ADCOF and ADCGN.

Total Harmonic Distortion TBD TBD
Peak Harmonic or Spurious

TBD TBD

Noise (PHSN)
Channel-to-Channel Crosstalk TBD TBD Measured on adjacent channels

Table 2. ADC channel specifications

Parameter Min Typ Max Unit Test Conditions/Comments

ANALOG INPUT

Input Voltage Ranges1

Single ended input 0 V
Differential input 0 VCM ± V

V

REF

/2 V

REF

Leakage Current 100 nA

Input Capacitance 20 pF During ADC Acquisition
ADC Power-up Time 5 µs Excludes reference power up time
ON-CHIP VOLTAGE REFERENCE

Output Voltage 1.25 V
Accuracy ±5 mV Measured at TA = 25°C
Reference Temperature Co ±40 ppm/°C
Power Supply Rejection Ratio 60 dB
Output Impedance 2
Internal V

TEMPERATURE SENSOR

Power-On Time 5 ms 0.47µF external capacitor

REF

1

Indicates die temperature

Ω

Voltage Output at 25°C TBD mV
Voltage TC
Accuracy

TBD mV/°C
TBD °C MCU in low power mode

Thermal impedance TBD

1

These numbers are not production tested, but are guaranteed by design and/or characterization data at production release.

Rev. PrF | Page 4 of 13