LF3320QC15 LODEV [LOGIC Devices Incorporated], LF3320QC15 Datasheet - Page 3

• Manufacturer Part Number: LF3320QC15
• Description: Horizontal Digital Image Filter
• Manufacturer: LODEV [LOGIC Devices Incorporated]

DEVICES INCORPORATED
SIGNAL DEFINITIONS
Power
V
+3.3 V power supply. All pins must be
connected.
Clock
CLK — Master Clock
The rising edge of CLK strobes all
enabled registers.
Inputs
DIN
DIN
Filter A. In Dual Filter Mode, DIN
can also be the 12-bit input port to
Filter B. Data is latched on the rising
edge of CLK.
RIN
In Single Filter Mode, RIN
bit reverse cascade input port. This
port is connected to ROUT
another LF3320. In Dual Filter Mode,
RIN
Filter B. Data is latched on the rising
edge of CLK.
CFA
CFA
Filter A coefficient banks (banks 0
through 7) and the configuration/
control registers. Data present on
CFA
Interface
when LDA is LOW (see the LF
Interface
sion).
CAA
CAA
in coefficient banks 0 through 7 is fed
to the multipliers. CAA
into Coefficient Address Register A on
the rising edge of CLK when CENA is
LOW.
CC
11-0
11-0
11-0
and GND
11-0
11-0
11-0
11-0
7-0
7-0
— Coefficient Address A
— Reverse Cascade Input
can be the 12-bit input port to
— Data Input
determines which row of data
is the 12-bit data input port to
— Coefficient A Input
is used to load data into the
is latched into the Filter A LF
TM
TM
on the rising edge of CLK
section for a full discus-
7-0
11-0
11-0
is latched
is the 12-
of
11-0
CFB
CFB
Filter B coefficient banks (banks 8
through 15) and the configuration/
control registers. Data present on
CFB
Interface
when LDB is LOW (see the LF
Interface
CAB
CAB
coefficient banks 8 through 15 is fed to the
multipliers. CAB
Coefficient Address Register B on the
rising edge of CLK when CENB is LOW.
SLCT
F
F
T
00000
00001
00010
01110
01111
10000
IGURE
IGURE
ABLE
11-0
11-0
11-0
7-0
7-0
·
·
·
(Sign)
(Sign)
–2
–2
4-0
— Coefficient Address B
11 10 9
31 30 29
determines which row of data in
— Coefficient B Input
is used to load data into the
is latched into the Filter B LF
Accumulator A Output
TM
TM
11
20
1. O
2. I
3. A
on the rising edge of CLK
section for a full discussion).
2
2
10
19
S
F
F
F
F
F
F
·
·
·
15
16
17
29
30
31
15
Input Data
2
2
NPUT
7-0
UTPUT
18
9
CCUMULATOR
S
F
F
F
F
F
F
2-3
is latched into
·
·
·
14
14
15
16
28
29
30
F
ORMATS
F
S
2
F
F
F
F
F
F
2
2
2
·
·
·
–9
13
14
15
27
28
29
ORMATS
13
2
2
2
1
1
–10
1
2
O
2
· · ·
· · ·
· · ·
· · ·
· · ·
· · ·
· · ·
0
0
–11
0
UTPUT
Horizontal Digital Image Filter
F
Outputs
DOUT
DOUT
output port for the overall filter (Single
Filter Mode) or Filter A (Dual Filter
Mode).
COUT
In Single Filter Mode, COUT
12-bit registered cascade output port.
COUT
DIN
Filter Mode, COUT
registered output port for the lower
twelve bits of the 16-bit Filter B output.
F
F
F
F
ORMATS
S
F
F
Video Imaging Products
·
·
·
10
22
23
24
8
9
8
11-0
(Sign)
(Sign)
–2
–2
11 10 9
31 30 29
F
F
F
S
F
F
F
11-0
·
·
·
11-0
Accumulator B Output
15-0
15-0
21
22
23
7
8
9
20
7
0
of another LF3320. In Dual
2
2
— Cascade Output
Coefficient Data
should be connected to
— Data Output
–1
19
is the 16-bit registered data
2
2
· · ·
· · ·
· · ·
· · ·
· · ·
· · ·
· · ·
–2
18
11-0
2
2
2
2
is a 12-bit
–9
–9
F
F
F
S
F
F
F
·
·
·
08/16/2000–LDS.3320-N
16
17
18
2
3
4
2
2
2
1
1
–10
–10
LF3320
11-0
F
F
F
S
F
F
F
·
·
·
2
2
15
16
17
1
2
3
1
0
0
–11
–11
is a
F
F
F
S
F
F
F
·
·
·
14
15
16
0
1
2
0