AMC1210_14 Datasheet, PDF (41/54 Pages) Texas Instruments – Quad Digital Filter for 2nd-Order Delta-Sigma Modulator

AMC1210
www.ti.com.............................................................................................................................................................. SBAS372D – APRIL 2006 – REVISED MAY 2009
If the drive current needed for the PWM1 or PWM2 pin is in excess of 100mA, or if filtering is desired for a
cleaner signal, extra circuitry is required. Figure 25 shows a typical schematic using the AMC1210 and ADS1205
in a resolver application.
5.0V
5.0V
OPA2347
5.0V
5.0V
5kW
5kW
RESOLVER
5.0V
0.1mF
20W
5kW
22pF
5kW
20W
20 W
20W ^22pF
10mF
AVDD BVDD
CH A+
ADS1205
CH A-
OUT A
CLKOUT
OUT B
CH B+
CH B-
REFIN A
REFIN B
REFOUT
CLKIN
CLKSEL
10mF
0.1mF
AVDD
PWM1
PWM2
BVDD CVDD DVDD
5.0V
M0
M1
AMC1210
IN1
CLK1
IN2
CLK2
CLK
AGND
CS
ALE
WR
RD
RST
INT
ACK
AD7
AD6
AD5
AD4
AD3
AD2
AD1
AD0
GND
Microcontroller/
DSP
32 MHz
Figure 25. Typical Schematic for Resolver Application
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