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DR-11800D4-593K PDF预览

DR-11800D4-593K

更新时间: 2024-10-27 23:48:23
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8页 353K
描述
Converter

DR-11800D4-593K 数据手册

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DR-1 1 8 0 0  
1 6 -BIT DIGITAL-TO-RES OLVER CONVERTER  
FEATURES  
DESCRIPTION  
11800 uses high accuracy resistive  
ladder networks and solid state  
switching to control the attenuation of  
the reference voltage. The output  
buffer amplifiers allow for up to 2 mA  
output drive.  
The DR-11800 is a small size, high  
accuracy, 16-bit digital-to-sine/cosine  
converter. Available in accuracies up  
to 1 arc minute, the DR-11800 is con-  
tained in a 28-pin, one-square-inch  
hermetically sealed package and  
requires +15 Vdc and -15 Vdc power  
supplies. The reference conditioner  
allows for either 115 Vrms or 26 Vrms  
reference input for a 6.8 Vrms sin/cos  
output. Two registers for the input of  
the 16-bit (CMOS/TTL) natural binary  
angle data allow for compatibility with  
an 8-bit or 16-bit data bus.  
28-Pin Square Package  
1 Arc Minute Accuracy  
0.03% Radius Accuracy  
Microprocessor Compatible -  
8- and 16-Bit  
APPLICATIONS  
High accuracy, high reliability, small  
size, low power consumption and  
MIL-PRF-38534 processing avail-  
ability, make the DR-11800 suitable  
for industrial and military ground or  
avionics applications. Possible appli-  
cations include digital remote posi-  
tioning, resolver angle simulators,  
flight trainer, flight instrumentation,  
radar and navigational systems, and  
PPI displays including moving target  
indicators. Other applications are syn-  
chro/resolver system development  
and test, and wraparound test of syn-  
chro/resolver-to-digital converters.  
Double-Buffered Inputs  
Pin-Programmable Reference  
Input (for 26 and 115 Vrms)  
DC-Coupled Reference and  
Outputs  
Internally, the DR-11800 has a multi-  
plying digital-to-sin/cos converter  
made of two function generators and  
a quadrant select network. Quadrant  
information is available from the two  
most significant bits. The two function  
generators use the remaining angular  
data along with the buffered reference  
voltage. Similar to a multiplying DAC  
(digital-to-analog converter), the DR-  
Requires Only ±15 V Power  
Supplies  
TTL and CMOS Compatible  
Pin-for-Pin Replacement for  
Natel’s HDR2406  
+V  
–V  
S
S
24  
25  
9
HBE  
(MSB) B1  
1
2
3
4
5
6
7
8
CK  
8-BIT  
INPUT  
REGISTER  
(MSB  
BIT 1)  
B2  
B3  
B4  
B5  
Q1  
D
B6  
B7  
B8  
SINθ  
28  
20  
16-BIT  
HIGH  
ACCURACY  
MULTIPLYING  
DIGITAL  
16-BIT  
HOLDING  
REGISTER  
BUFFER  
AMPLIFIERS  
B9 11  
TO SIN / COS  
CONVERTER  
12  
13  
14  
15  
16  
17  
B10  
B11  
B12  
B13  
COSθ  
D
8-BIT  
INPUT  
REGISTER  
B14  
B15  
BIT 16  
(LSB)  
Q16  
(LSB) B16 18  
CK  
CK PE  
LBE 10  
19  
LDC  
-
+
REFERENCE  
CONDITIONER  
23  
22  
21  
27  
26  
GND  
RL26  
RL115  
RH115  
RH26  
FIGURE 1. DR-11800 BLOCK DIAGRAM  
1996, 1999 Data Device Corporation  
©