DDC RDC-19220 Series - Page 2

2
Data Device Corporation
www.ddc-web.com
RDC-19220 SERIES
Q-05/05-0
FIGURE 1. RDC-19220 SERIES BLOCK DIAGRAM
SIN
-S
+S
COS
-C
+C
+5C
+CAP
-CAP
-5C
A GND
+5 V
GND
-5 V
CONTROL
TRANSFORMER
-5 V
INVERTER
DATA
LATCH
GAIN
DEMODULATOR
16 BIT
UP/DOWN
COUNTER
HYSTERESIS
+REF -REF BIT
R
1
VCO
&
TIMING
-
+
-
+
AB
INH
EM
BIT 1
THRU
BIT 16
EL
AB CB
E
R
S
R
C
R
V
R
B
C
BW
C
BW
10
-VSUM VEL -VCO
INTEGRATOR