LF2250 LODEV [LOGIC Devices Incorporated], LF2250 Datasheet
LF2250
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LF2250 Summary of contents
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... Real-time video image filtering using the convolver modes of the LF2250 can provide edge detection, texture enhancement, and detail smoothing. Both pixel convolver configurations and deliver high-speed data manipulation in a single chip solution ...
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... B NC 11-0 11-0 BIT WEIGHTING The internal sum of products of the LF2250 can grow to 23 bits. However, in order to keep the output format of the matrix multiply mode (Mode 00) identical to the input format, the X, Y, and Z outputs are truncated to 12-bit integer words. In the filter modes (Modes 01, 10, 11), the cascade output is always half-LSB rounded to 16 bits (12 integer bits and 4 fractional bits) ...
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... MODE — Mode Select 1-0 The registered mode select inputs determine the operating mode of the LF2250 (Table 1) for data being input on the next clock cycle. When switch- ing between modes, the internal pipeline latencies of the device must be observed. After switching operat- ing modes, the user must allow ...
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... Convolver — Mode 11 CASOUT(n+7) = A(n+3)KA3(n+3) + A(n+2)KA2(n+2) + A(n+1)KA1(n+1) + A(n)KC3(n+3) + B(n+1)KB1(n+1) + B(n)KC1(n+1) + CASIN(n+4) 4 LF2250 12 x 10-bit Matrix Multiplier 4 x 2-Pixel Convolver — Mode 11 Using the A and B ports, input data is loaded and multiplied by the on- board coefficients. These products are then summed with the CASIN data and rounded to create the 16-bit output ...
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... M M IGURE X ATRIX ULTIPLIER KC1 10 KC — ODE KA1 KA2 21 KB1 KB2 21 KC2 (MSB) 12 (MSB 10-bit Matrix Multiplier KA3 21 21 KB3 21 21 KC3 21 12 (MSB Video Imaging Products 08/16/2000–LDS.2250-L LF2250 ...
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... KB 3 KC1 CASIN 5 10000 (HALF-LSB ROUNDING) NOTE: NUMBERS IN REGISTERS INDICATE NUMBER OF PIPELINE DELAYS 01 ODE KA1 KA2 21 KB1 KB2 21 KC2 10-bit Matrix Multiplier KA3 21 21 KB3 21 21 KC3 (MSB) CASOUT Video Imaging Products 08/16/2000–LDS.2250-L LF2250 ...
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... ONVOLVER KC1 CASIN 5 10000 (HALF-LSB ROUNDING) — ODE KA1 KA2 21 KB1 KB2 21 KC2 LF2250 12 x 10-bit Matrix Multiplier KA3 21 21 KB3 21 21 KC3 (MSB) CASOUT Video Imaging Products 08/16/2000–LDS.2250-L ...
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... KB KC1 CASIN 5 10000 2 (HALF-LSB ROUNDING) NOTE: NUMBERS IN REGISTERS INDICATE NUMBER OF PIPELINE DELAYS — ODE KA1 KA2 21 KB2 KC2 10-bit Matrix Multiplier KA3 21 21 KB3 21 KC3 (MSB) CASOUT Video Imaging Products 08/16/2000–LDS.2250-L LF2250 3 ...
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... Vcc = Min –2 Vcc = Min 4 (Note 3) Ground V V (Note 12 (Note 12) (Notes 5, 6) (Note 25° MHz 25° MHz A 9 LF2250 12 x 10-bit Matrix Multiplier + 0 0 Voltage Supply Min Typ Max 2.4 0.4 2 ...
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... Video Imaging Products 08/16/2000–LDS.2250-L LF2250 20 Max 15 ...
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... M 01 ILTER ODE PWL 11 Kx3 1 Q13 KB1 10-bit Matrix Multiplier KA1 + KB1 + KC1 KA2 + KB2 + KC2 KA3 + KB3 + KC3 KC3 KC2 KC1 Q13 Video Imaging Products 08/16/2000–LDS.2250-L LF2250 ...
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... PWL 11 Kx3 1 10-bit Matrix Multiplier KA3 + KB3 + KC3 KA2 + KB2 + KC2 KA1 + KB1 + KC1 KA3 + KB3 KA2 + KB3 KA1 + KB1 KC1 + KC3 Video Imaging Products 08/16/2000–LDS.2250-L LF2250 ...
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... ENA OE 1 Measured V with I = –10mA and Measured V with I = –10mA and Video Imaging Products 08/16/2000–LDS.2250-L LF2250 test, DIS C IRCUIT EVELS t DIS 3.0V Vth 0 0 Vth = 10mA OL = 10mA OL ...
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... MIL-STD-883 C –55°C to +125°C — MIL-STD-883 C Top View Plastic Quad Flatpack (Q1 CREENING CREENING LF2250QC25 LF2250QC20 S S CREENING CREENING OMPLIANT OMPLIANT 14 LF2250 12 x 10-bit Matrix Multiplier CLK ...
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... GND CWE CWE Video Imaging Products LF2250 08/16/2000–LDS.2250-L ...