TMC2246AKEC2 Fairchild Semiconductor, TMC2246AKEC2 Datasheet - Page 12

• Manufacturer Part Number: TMC2246AKEC2
• Description: Video ICs Image Filter
• Manufacturer: Fairchild Semiconductor
• Type: Digital Half Band Filtersr

Specifications of TMC2246AKEC2

• Operating Supply Voltage: - 0.5 V to + 7 V
• Supply Current: 170 mA
• Maximum Operating Temperature: 70 C
• Package / Case: MQFP-120
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PRODUCT SPECIFICATION
TMC2246A Applications in Digital
Filtering
Unrestricted access to all input ports of the TMC2246A
allows the user considerable flexibility in realizing numerous
digital filter architectures. Figure 6 illustrates how the device
may be utilized as a flexible high-speed FIR filter with the
ability to modify all of the filter coefficients dynamically or
to store a fixed set if desired.
12
Banded
Source
Image
RAM
SADR 23-8
TMC2302A
DOUT
D1
ADDR
X,Y
“X”
C1
TADR 11-0
SADR 7-4
+1
Target
Image
RAM
DOUT
D2
ADDR
X+1,Y
TMC2246A
Figure 5. Bilinear Interpolation Using the TMC2246A
C2
To Display
S 15-0
D OUT
D IN
+1
DOUT
D3
ADDR
X,Y+1
SADR 23-8
Interpolated Pixel Data
ADDR
TMC2302A
C3
“Y”
DOUT
X+1,Y+1
D4
ADDR
TADR 11-0
U,VAddress
SADR 7-4
C4
Longer filters, with more taps, are realized by including an
external adder (such as the common 74381 type) to cascade
multiple TMC2246As. Alternatively, two additional taps and
a cascading adder are available in the Fairchild TMC2249A
Digital Mixer.
Banded
Interpolation
Coefficient
ROM
Address
Adders
Offset
TMC2011A
Pipeline
Delay
Register
REV. 1.0.3 9/11/00
TMC2246A