tmc2246a Fairchild Semiconductor, tmc2246a Datasheet - Page 7

• Manufacturer Part Number: tmc2246a
• Description: Image Filter 11 X 10 Bit, 60 Mhz
• Manufacturer: Fairchild Semiconductor

TMC2246A
Table 1. Input Register Control
Data Formats
Note: A minus sign indicates the sign bit.
Equivalent Circuits and Threshold
Levels
REV. 1.0.3 9/11/00
Fractional Two’s Complement Format (FSEL = LOW)
Integer Two’s Complement Format (FSEL = HIGH)
Integer Two’s Complement Data / Fractional Two’s Complement Coefficient Format (FSEL = LOW)
-2
-2
-2
ENB1-4
15
15
15
15
15
6
1
1
0
2
2
14
14
14
2
Data or
Control
Input
Figure 2. Equivalent Digital Input Circuit
14
14
5
2
2
13
13
13
2
ENSEL
13
13
4
X
1
0
2
2
12
12
12
2
GND
12
12
3
2
2
11
11
11
2
11
11
2
Input Register Held
-2
-2
2
-2
2
10
10
10
2
10
10
1
10
1
1
Coefficient i
V
-2
DD
2
2
-2
-2
2
2
2
2
Data i
9
9
9
None
0
0
0
9
9
9
0
9
9
p
n
.
.
.
.
2
2
2
2
2
2
2
2
2
8
8
8
-1
-1
-1
-1
8
8
8
8
8
2
2
2
2
2
2
2
2
2
Figure 1. Data Formats
7
7
7
-2
-2
-2
-2
7
7
7
7
7
2
2
2
2
2
2
2
2
2
6
6
6
-3
-3
-3
-3
6
6
6
6
6
2
2
2
2
2
2
2
2
2
5
5
5
-4
-4
-4
-4
5
5
5
5
5
2
2
2
2
2
2
2
2
2
4
4
4
-5
-5
-5
-5
4
4
4
4
4
Figure 3. Equivalent Digital Output Circuit
2
2
2
2
2
2
2
2
2
3
3
3
-6
-6
-6
-6
3
3
3
3
3
2
2
2
2
2
2
2
2
2
2
2
2
-7
-7
-7
-7
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
1
1
-8
-8
-8
-8
1
1
1
1
1
GND
V
DD
2
2
2
2
2
2
2
2
2
0
0
0
p
n
-9
-9
-9
0
0
0
0
-9
0
.
.
.
.
.
BIT
DATA (D1-4)
COEFFICIENT (C1-4)
SUM
BIT
DATA (D1-4)
COEFFICIENT (C1-4)
SUM
BIT
DATA (D1-4)
COEFFICIENT (C1-4)
SUM
PRODUCT SPECIFICATION
Output
7