LF2272 LODEV [LOGIC Devices Incorporated], LF2272 Datasheet - Page 3

• Manufacturer Part Number: LF2272
• Description: Colorspace Converter/Corrector (3 x 12-bits)
• Manufacturer: LODEV [LOGIC Devices Incorporated]

DEVICES INCORPORATED
SIGNAL DEFINITIONS
Power
V
+5 V power supply. All pins must be
connected.
Clock
CLK — Master Clock
The rising edge of CLK strobes all
enabled registers. All timing specifi-
cations are referenced to the rising
edge of CLK.
Inputs
A
A, B, and C are the 12-bit registered
data input ports. Data presented to
these ports is latched into the multi-
plier input registers.
KA
KA, KB, and KC are the 10-bit regis-
tered coefficient input ports. Data
presented to these ports is latched into
the corresponding internal coefficient
register set defined by CWEL
(Table 3) on the next rising edge of
CLK. Table 2 shows which coefficient
registers are available for each coeffi-
cient input port.
CC
11-0
9-0
and GND
, B
, KB
11-0
9-0
, C
, KC
11-0
9-0
— Data Inputs
— Coefficient Inputs
1-0
Outputs
X
X, Y, and Z are the 12-bit registered
data output ports.
Controls
CWEL
The registered coefficient write enable
inputs determine which internal
coefficient register set to update
(Table 3) on the next clock cycle.
T
INPUT PORT
11-0
ABLE
, Y
KA
KB
KC
1-0
11-0
2. C
— Coefficient Write Enable
, Z
11-0
OEFFICIENT
— Data Outputs
REG. AVAILABLE
3
KA1, KA2, KA3
KB1, KB2, KB3
KC1, KC2, KC3
I
NPUTS
T
CWEL
Video Imaging Products
ABLE
00
01
10
11
Colorspace Converter/
Corrector (3 x 12-bits)
1
-
3. C
0
COEFFICIENT SET
Hold All Registers
KA1, KB1, KC1
KA2, KB2, KC2
KA3, KB3, KC3
OEFF
. R
EG
08/16/2000–LDS.2272-I
. U
LF2272
PDATE