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.
