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PDF ADuCM320i Data sheet ( Hoja de datos )
| Número de pieza | ADuCM320i | |
| Descripción | Precision Analog Microcontroller | |
| Fabricantes | Analog Devices | |
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Data Sheet
Precision Analog Microcontroller, 14-Bit Analog
I/O with MDIO Interface, ARM Cortex-M3
ADuCM320i
FEATURES
Analog input/output
Multichannel, 14-bit, 1 MSPS analog-to-digital
converter (ADC)
Up to 16 ADC input channels
0 V to VREF analog input range
Fully differential and single-ended modes
AVDD and IOVDD monitors
12-bit voltage output digital-to-analog converters (VDACs)
8 VDACs with a range of 0 V to 2.5 V or AVDD outputs
12-bit current output DACs (IDACs)
4 IDACS with a range of 0 mA to 150 mA outputs
Voltage comparator
Microcontroller
ARM Cortex-M3 processor, 32-bit RISC architecture
Serial wire port supports code download and debug
Clocking options
80 MHz PLL with programmable divider
Trimmed on-chip oscillator (±3%)
External 16 MHz crystal option
External clock source up to 80 MHz
Memory
2 × 128 kB independent Flash/EE memories
10,000 cycle Flash/EE endurance
20-year Flash/EE retention
32 kB SRAM
In circuit reprogrammability via I2C
On-chip peripherals
MDIO slave up to 4 MHz
2 × I2C, 2 × SPI, UART
Multiple general-purpose input/output (GPIO) pins: 3.6 V
compliant
7 × 1.2 V compatible when used for MDIO
32-element programmable logic array (PLA)
3 general-purpose timers
Wake-up timer
Watchdog timer
16-bit pulse width modulator (PWM)
Power
Supply range: 2.9 V to 3.6 V, and 1.8 V to 2.5 V for IDACs
Flexible operating modes for low power applications
Package and temperature range
6 mm × 6mm, 96-ball CSP_BGA package
Fully specified for −40°C to +85°C ambient operation
Tools
Low cost QuickStart development system
Full third party support
APPLICATIONS
Optical networking
Rev. 0
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
©2015 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
1 page  
ADuCM320i
GENERAL DESCRIPTION
The ADuCM320i is a fully integrated single package device that
incorporates high performance analog peripherals together
with digital peripherals controlled by an 80 MHz ARM®
Cortex™-M3 processor and integral flash for code and data.
The ADC on the ADuCM320i provides 14-bit, 1 MSPS data
acquisition on up to 16 input pins that can be programmed for
single-ended or differential operation. The voltage at the IDAC
output pins can also be measured by the ADC, which is useful for
controlling the power consumption of the current DACs.
Additionally, chip temperature and supply voltages can be
measured.
The ADC input voltage is 0 V to VREF. A sequencer is provided,
which allows a user to select a set of ADC channels to be measured
in sequence without software involvement during the sequence.
The sequence can optionally repeat automatically at a user
selectable rate.
Up to eight VDACs are provided with output ranges that are
programmable to one of two voltage ranges.
Four IDAC sources are provided. The output currents are
programmable with a range of 0 mA to 150 mA. A low drift
band gap reference and voltage comparator completes the
analog input peripheral set.
The ADuCM320i can be configured so that the digital and analog
outputs retain their output voltages and currents through a
watchdog or software reset sequence. Thus, a product can remain
functional even while the ADuCM320i is resetting itself.
The ADuCM320i has a low power ARM Cortex-M3 processor
and a 32-bit RISC machine that offers up to 100 MIPS peak
performance. Also integrated on chip are 2 × 128 kB Flash/EE
memory and 32 kB of SRAM. The flash comprises two separate
128 kB blocks supporting execution from one flash block and
simultaneous writing/erasing of the other flash block.
The ADuCM320i operates from an on-chip oscillator or a
16 MHz external crystal and a PLL at 80 MHz. This clock can
optionally be divided down to reduce current consumption.
Additional low power modes can be set via software. In normal
operating mode, the ADuCM320i digital core consumes about
300 µA per MHz.
Data Sheet
The device includes an MDIO interface capable of operating at
up to 4 MHz. The capability to simultaneously execute from
one flash block and write/erase the other flash block makes the
ADuCM320i ideal for 10G, 40G, and 100G optical applications.
User programming is eased by incorporating PHYADR and
DEVADD hardware comparators. In addition, the nonerasable
kernel code plus flags in user flash provide assistance by
allowing user code to robustly switch between the two blocks
of user flash code and data spaces.
The ADuCM320i integrates a range of on-chip peripherals that
can be configured under software control, as required in the appli-
cation. These peripherals include 1 × UART, 2 × I2C, and 2 × SPI
serial input/output (I/O) communication controllers, GPIO,
32-element programmable logic array, 3 general-purpose timers,
plus a wake-up timer and system watchdog timer. A 16-bit
PWM with seven output channels is also provided.
GPIO pins on the device power up in high impedance input
mode. In output mode, the software chooses between open-
drain mode and push-pull mode. The pull-up resistors can be
disabled and enabled in software. In GPIO output mode, the
inputs can remain enabled to monitor the pins. The GPIO pins
can also be programmed to handle digital or analog peripheral
signals, in which case the pin characteristics are matched to the
specific requirement.
A large support ecosystem is available for the ARM Cortex-M3
processor to ease product development of the ADuCM320i.
Access is via the ARM serial wire debug port (SW-DP). On-chip
factory firmware supports in-circuit serial download via I2C.
These features are incorporated into a low cost QuickStart™
development system supporting this precision analog
microcontroller family.
Note that throughout this data sheet, multifunction pins, such
as VDAC0/P5.3, are referred to either by the entire pin name or
by a single function of the pin, for example, VDAC0, when only
that function is relevant.
Rev. 0 | Page 4 of 26
5 Page 
ADuCM320i
Data Sheet
Parameter
VDDx Current
Normal Mode
Symbol Min
CORE_SLEEP Mode
SYS_SLEEP Mode
Hibernate Mode
Additional Power Supply Currents
ADC
ADC Input Buffer
IDAC
DAC
Total Supply Current
35
Typ Max
29
20
10
16
8
6.6
4.1
4.0
16.5
340
40 45
Thermal Performance
Impedance, Junction to
Ambient
45
Unit
mA
mA
mA
mA
mA
mA
mA
mA
mA
µA
mA
°C/W
Test Conditions/Comments
CD = 0 (80 MHz clock)
executing typical code
CD = 1 executing typical code
CD = 7 executing typical code
Continuously converting at
100 kSPS
Both buffers enabled
Excluding load current
Per powered up DAC,
excluding load current
VDD1, IOVDDx, AVDDx
connected together; condition
when entering user code:
peripheral clocks on,
peripherals idle, no load
currents
JEDEC 2S2P
1 These numbers are not production tested but are guaranteed by design and/or characterization data at production release.
2 Enabling the input buffer changes the ADC input characteristics as described in these specifications (the ADC Input Buffer specifications).
3 The data in the Microcontroller Electrical Specifications section also applies for a load of RL = 1 kΩ and CL = 100 pF to ground but only for 0 V to 2.5 V. However, this is
not production tested.
4 DAC linearity is calculated using a reduced code range of 100 to 3900.
5 DAC gain error is calculated using a reduced code range of 100 to an internal 2.5 V VREF.
6 Due to self heating, internal temperature measurements cannot be used to predict external temperatures. This value is only relevant after user calibration and only for
internal and external conditions identical to those at calibration.
7 The average current from all GPIO pins must not exceed 3 mA per pin.
8 Power specifcations exclude any load currents to external circuits.
Rev. 0 | Page 10 of 26
11 Page | ||
| Páginas | Total 27 Páginas | |
| PDF Descargar | [ Datasheet ADuCM320i.PDF ] | |
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