iC-MR
13-BIT S&H SIN/COS
preliminar y
Rev A1, Page 1/44
INTERPOLATOR WITH CONTROLLER INTERFACES
FEATURES
o
Fast 13-bit sine-to-digital conversion within 2 µs
o
Precision PGA for differential and single-ended signals of
up to 500 kHz
o
Voltage or current input mode with signal monitoring
o
Adjustable signal conditioning for offset, amplitude, and phase
o
Input signal stabilization through LED or MR bridge current
control of up to 50 mA
o
8-bit parallel and serial I/O interfaces (BiSS, SSI, and SPI)
o
Absolute data interface (ADI: BiSS/SSI) for position preset
o
Period counter of up to 50 bits with selectable
singleturn/multiturn splitting
o
Position data preset using ST/MT offset registers
o
12-bit A/D converter for temperature sensing
o
Special functions for safety applications (signal monitoring, life
counter, and extended CRC)
o
Current-limited, differential 1 Vpp sine/cosine outputs to 100
Ω
o
Device configurable through I/O interfaces or a serial
EEPROM
o
Single-sided 5 V operation from -40 to +110 °C
APPLICATIONS
o
Fast position decoding for
safety-oriented encoder systems
o
Motor feedback systems
PACKAGES
QFN48 7x7
BLOCK DIAGRAM
TMS
U/U
I/ U
T0
T1
T2
Conditioning
ACO
VDD
VDDA
PSO
SIGNAL CONDITIONING
PSI
NSI
U/U
Conditioning
I/ U
NSO
Amplitude
Control
SIN + COS = 1
2
2
VREF
PCI
NCI
U/U
U/U
Filter
PCO
Conditioning
I/ U
Conditioning
I/ U
NCO
ASLI
AMAO
ABSOLUTE DATA
INTERFACE
(ADI)
iC-MR
PERIOD COUNTER
37...34-bit
SCL
SDA
INTERPOLATOR
13-bit
EEPROM
INTERFACE
RESET
NRES
SAFETY
OFFSET
REGISTER
FEATURES
NERR
Configuration / CRC
Error Monitor
Life Counter
SERIAL I/O INTERFACE
PARALLEL I/O INTERFACE
D7 D6 D5 D4 D3 D2 D1 D0
NWR
NRD
NL NCS
BiSS
MAI
SSI
SLO
SPI
SLI
GND
12-bit
A/D CONVERTER
GNDA
ADC
Copyright © 2013 iC-Haus
ICHAUS [ IC-HAUS GMBH ]
