16-BIT MONOLITHIC TRACKING
RESOLVER (LVDT)-TO-DIGITAL
CONVERTER SERIES
Model RDC-19220/2/4 RDC-19220/2S Series
www.ddc-web.com
FEATURES
•
Accuracy to 2.3 Arc Minutes
• Internal Synthesized Reference Option (S Version)
- Up to 45 Degree Phase Shift Correction
• +5 Volt Only Option
• Programmable:
- Resolution 10, 12, 14 or 16 bit
- Bandwidth
- Tracking
• Standard MIL-PRF Selections Available
• -55° to +125° C Operation Temperature Option
• Small Size: Available in DDIP, J-LEAD, and MQFP Packages
DESCRIPTION
The RDC-19220/2/4, RDC-19220/2S Series are 16 bit monolithic tracking resolver to digital converters. These convert-
er selections offer low cost off-the-shelf solutions for today's motion feedback applications. Mil-PRF-38534 processing
options are also available. This single chip converter features programmable resolution of 10, 12, 14 or 16 bits with
accuracies to 2.3 min. This converter can be configured for operation with a single +5VDC power supply.
Programmable bandwidth and a velocity output used to replace tachometers can be scaled to your application needs.
The velocity scale factor / tracking rate is programmed with a single resistor. The optional internal synthesized refer-
ence feature will eliminate errors due to quadrature voltage and ensure operation with a rotor-to-stator phase shift of
up to 45 degrees.
APPLICATIONS
These converters offer versatile performance for use in motion control systems. Standard selections for MIL-PRF
processing reduce lead time costs and no NRE or lot charges are necessary. Typical applications include motor con-
trol, machine tool control, robotics, flight surface control plus many more.
BENEFIT
Reduce in-house risk solutions and resources with faster time to market using these off the shelf solutions.
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© 2006 Data Device Corporation
RDC-19220/2S SPECIFICATIONS
PARAMETER
Frequency Range
Accuracy -XX2
-XX3
(note 1)
Reliability
Differential Linearity
Reference
Type
Voltage: differential
Single ended
Overload
Frequency
Input Impedance
±Sig/Ref Phase Shift
Signal Input
Type
Voltage: operating
Overload
Input Impedance
Power Supplies
(note 4)
Nominal Voltage
Voltage Range
Max Volt w/o Damage
Current
Vrms
V
Ohm
V
%
V
mA
UNIT
Hz
Min
Min
LSB
LSB
VALUE
47-1k
(note 2)
1k-4k
4k-10k
4+1 LSB
4+1 LSB 5+1 LSB
2+1 LSB
2+1 LSB 3+1 LSB
±1
±1
±2
±1
±1
±2
(+Ref, -Ref)
Differential
± 10 max
± 5 max
± 25 continuous 100
transient
47 to 10,000
10M min //20 pF
45 max from 400Hz to 10kHz
(note 3)
(+S, -S, SIN, +C, -C, COS)
Resolver, differential,
groundbase
2 ± 15%
±25 continuous
10M min//10pF
+5
-5
±5
±5
+7
-7
14 typ, 22 max (each)
PARAMETER
RDC-19220/2/4 SPECIFICATIONS
UNIT
Min
Min
LSB
LSB
VALUE
4+1 LSB
2+1 LSB
±1
±1
(+Ref, -Ref)
Differential
± 10 max
± 5 max
± 25 continuous 100
transient
DC to 40kHz
10M min //20 pF
6 max
(+S, -S, SIN, +C, -C, COS)
Resolver, differential,
groundbase
2 ± 15%
±25 continuous
10M min//10pF
+5
-5
±5
±5
+7
-7
14 typ, 22 max (each)
Accuracy -XX2
-XX3
(note 1)
Reliability
Differential Linearity
Reference
Type
Voltage: differential
Single ended
Overload
Frequency
Input Impedance
±Sig/Ref Phase Shift
Signal Input
Type
Voltage: operating
Overload
Input Impedance
Power Supplies
(note 4)
Nominal Voltage
Voltage Range
Max Volt w/o Damage
Current
Vrms
V
Ohm
V
%
V
mA
V
V
V
Hz
Ohm
deg
V
V
V
Hz
Ohm
deg
Notes:
1. Accuracy calculation for LVDT mode is described in the LVDT Accuracy section of the datasheet.
2. If the frequency is between 47Hz and 1kHz, then there may be 1 LSB of jitter at quadrant boundaries.
3. The maximum phase shift tolerance will degrade linearly from 45 degrees at 400 Hz to 30 degrees at 60 Hz.
4. See full datasheet for +5V only option details.
RDC-19220/2/4 and RDC-19220/2S Block Diagram
Figure 2
REFERENCE
INPUT
+REF -REF
SYNTHESIZED
REFERENCE
(RDC1922XS ONLY)
VSUM
C
BW
R
B
VEL
INTEGRATOR
BIT
EXTERNAL
COMPONENTS
SIGNAL
INPUTS
SIN
-S
+S
COS
-C
+C
+5C
+CAP
-CAP
-5C
A GND
+5 V
GND
-5 V
-
+
-
+
CONTROL
TRANSFORMER
GAIN
DEMODULATOR
R
1
C
BW
10
HYSTERESIS
A B
16-BIT
UP/DOWN
COUNTER
E
DATA
LATCH
VCO
&
TIMING
R
V
-5 V
INVERTER
(RDC-19222
ONLY)
VCO
R
S
R
C
INH
EM BIT 1 EL
THRU
BIT 16
A B
RESOLUTION
CONTROL
CB
DIGITAL
OUTPUT
Data Device Corporation
www.ddc-web.com
3
RDC-19220/2, RDC-19220/2S Rev 5
9/13
Ordering Information
RDC-19224 X-X X X X (Plastic Package: 44-pin MQFP)
Supplemental Process Requirements:
T = Tape and Reel (not recommended)
Blank = None of the above
Accuracy:
2 = 4 minutes + 1 LSB
3 = 2 minutes + 1 LSB
Process Requirements:
0 = No Burn-In
Temperature Grade/Data Requirements:
2 = -40°C to +85°C
3 = 0°C to +70°C
A = -40°C to +125°C
Package Options:
Blank = Standard (note 2a, 2b)
G = Lead Free (RoHS Complaint ) (note1)
Package:
4 = MQFP 44 Pin
RDC-1922XX-X X X X
RDC-1922XS- X X X X (Ceramic Package)
Supplemental Process Requirements:
T = Tape and Reel (not recommended)
S = Pre-Cap Source Inspection
L = 100% Pull Test
Q = Pre-Cap Source and 100% Pull Test
K = One Lot Date Code
W = One Lot Date Code and Pre-Cap Source Inspection
Y = One Lot Date Code and 100% Pull Test
Z = One Lot Date Code, Pre-Cap Source Inspection and 100% Pull Test
Blank = None of the above
Accuracy:
2 = 4 minutes + 1 LSB
3 = 2 minutes + 1 LSB
Process Requirements:
0 = No Burn-In
1 = MIL-PRF-38534 Compliant
2 = Standard DDC Processing, with Burn-In
3 = MIL-PRF-38534 Compliant, with PIND testing
4 = MIL-PRF-38534 Compliant, with Solder Dip
5 = MIL-PRF-38534 Compliant, with PIND testing, and Solder Dip
6 = Standard DDC Processing, with PIND testing, and Burn-In
7 = Standard DDC Processing, with Solder Dip, and Burn-In
9 = Standard DDC Processing, with Solder Dip, without Burn-In
Temperature Grade/Data Requirements:
1 = -55°C to +125°C
4 = -55°C to +125°C, with Variables Test Data
Package:
0 = 40-Pin DDIP, (“+5 volt only” power supply feature - not available)
2 = 44-Pin J-Lead
Notes:
1. The lead-free option is available with a matte-tin finish. DDC can provide the reliability and tin whisker growth data associated with these products: however,
tin whisker growth is dependant on the application environment and customers should collect their own reliability data and perform a risk assessment based on their
individual requirements.
2. (a) Parts marked with no revision after the date code are not lead free, plating is 85/15, 85% tin/15% lead.
(b) Parts marked with revision "B" after the date code are not lead free, and are completed by a solder dip process over a tin (Sn) plated lead. Final finish is
63/37, 63% tin/37% lead.
Packaging
RDC-19222/2S and RDC-19224 are shipped in JEDEC trays that are acceptable for use with pick and place operation.
For ordering assistance and technical support,
Call: 1-800-DDC-5757 for North America
(631) 567-5700 for International
E-Mail: service@ddc-web.com
Visit: www.ddc-web.com
Headquarters, N.Y., U.S.A - Tel: (631) 567-5600, Fax: (631) 567-7358
United Kingdom - Tel: +44-(0)1635-811140, Fax: +44-(0)1635-32264
France - Tel: +33-(0)1-41-16-3424, Fax: +33-(0)1-41-16-3425
Germany - Tel: +49-(0)89-1500 -12-11, Fax:+49(0)89-1500 12-22
Japan - Tel: +81-(0)3-3814-7688, Fax: +81-(0)3-3814-7689
Asia - Tel: +65-6489-4801
Data Device Corporation
ST
®
ERED
DATA DEVICE CORPORATION
REGISTERED TO:
ISO 9001:2008, AS9100C:2009-01
EN9100:2009, JIS Q9100:2009
FILE NO. 10001296 ASH09
The information in this Product Brief is believed to be accurate; however, no responsibility
is assumed by Data Device Corporation for its use, and no license or rights are granted
by implication or otherwise in connection therewith. Specifications are subject to change
without notice.
Data Device Corporation
www.ddc-web.com
FI
RM
U
REG
I
4
RDC-19220/2, RDC-19220/2S Rev 5
9/13
Analog electronics
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