LOGIC LF43891JC33

LF43891
LF43891
DEVICES INCORPORATED
9 x 9-bit Digital Filter
9 x 9-bit Digital Filter
DEVICES INCORPORATED
FEATURES
❑
❑
❑
❑
DESCRIPTION
30 MHz Maximum Sampling Rate
320 MHz Multiply-Accumulate Rate
8 Filter Cells
8-bit Unsigned or 9-bit Two’s
Complement Data/Coefficients
❑ 26-bit Data Outputs
❑ Shift-and-Add Output Stage for
Combining Filter Outputs
❑ Expandable Data Size, Coefficient
Size, and Filter Length
❑ User-Selectable 2:1, 3:1, or 4:1
Decimation
❑ Replaces Harris HSP43891
❑ 84-pin PLCC, J-Lead
The LF43891 is a video-speed digital
filter that contains eight filter cells
(taps) cascaded internally and a shiftand-add output stage. A 9 x 9 multiplier, three decimation registers, and a
26-bit accumulator are contained in
each filter cell. The output stage of the
LF43891 contains a 26-bit accumulator
which can add the contents of any
filter stage to the output stage accumulator shifted right by 8 bits. 8-bit
unsigned or 9-bit two’s complement
format for data and coefficients can be
independently selected.
Expanded coefficients and word sizes
can be processed by cascading multiple LF43891s to implement larger
filter lengths without affecting the
sample rate. By reducing the sample
rate, a single LF43891 can process
larger filter lengths by using multiple
passes. The sampling rate can range
from 0 to 40 MHz. Over 1000 taps
may be processed without overflows
due to the architecture of the device.
The output sample rate can be reduced to one-half, one-third, or onefourth the input sample rate by using
the three decimation registers contained in every filter cell. Matrix
multiplication, N x N spatial correlations/convolutions, and other 2-D
operations for image processing can
also be achieved using these registers.
LF43891 BLOCK DIAGRAM
DIENB, CIENB,
ERASE, DCM1-0
DIN8-0
9
CIN8-0
ADR2-0
9
FILTER
CELL 0
9
FILTER
CELL 1
9
FILTER
CELL 2
9
5
FILTER
CELL 3
9
FILTER
CELL 4
9
FILTER
CELL 5
9
FILTER
CELL 6
9
FILTER
CELL 7
3
9
COUT8-0
COENB
26
26
26
26
26
26
26
26
MUX
26
SHADD
OUTPUT
STAGE
SENBL
SENBH
RESET
26
TO ALL CELLS
CLK
TO ALL REGISTERS
SUM25-0
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LF43891
DEVICES INCORPORATED
9 x 9-bit Digital Filter
FIGURE 1. FILTER CELL DIAGRAM
CIENB.D
DCM0.D
C REG
D1 REG
1
LD
LD
D2 REG
D3 REG
TRI-STATE BUFFER
ON FILTER CELL 7 ONLY
1
MUX
CIN8-0
LD
C8-0
MUX
LD
DCM1.D
D8-0
0
COUT8-0
COENB
0
C8-0
DIENB.D
LD
DIN8-0
X8-0
X REG
M REG0
DCM1
DCM1.D
DCM0
DCM0.D
RESET.D
RESET
DIENB.D
DIENB
CIENB
M REG1
LATCHES
SIGN EXTENSION
25-18
CIENB.D
ADR0
ADR0.D
ADR1
ADR1.D
ADR2
ADR2.D
ACC25-0
ERASE.D
ERASE
17-0
RESET.D
ERASE.D
ACCUMULATOR
CELL n
ADR0
ADR1
DECODER
ADR2
CELL 0
CELL 1
CELL 2
CELL 3
CELL 4
CELL 5
CELL 6
CELL 7
CELL n
ACC.D25-0
D
Q
LD T REG
AOUT25-0
CLK
RESET.D
TO ALL REGISTERS
TO ALL REGISTERS (EXCEPT ACCUMULATOR AND T-REGISTER)
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LF43891
DEVICES INCORPORATED
CIENB enables the C and D registers
for coefficient loading. The registers
are loaded on the rising edge of CLK
when CIENB is LOW. CIENB is
latched and delayed internally which
enables the registers for loading one
clock cycle after CIENB goes active
(loading takes place on the second
rising edge of CLK after CIENB goes
LOW). Therefore, CIENB must be
LOW one clock cycle before the
coefficients are placed on the CIN8-0
inputs. The coefficients are held when
CIENB is HIGH.
DIENB enables the X register for the
loading of data. The X register is
loaded on the rising edge of CLK
when DIENB is LOW. DIENB is
latched and delayed internally (loading takes place on the second rising
edge of CLK after DIENB goes LOW).
Therefore, DIENB must be LOW one
clock cycle before the data is placed on
the DIN8-0 inputs. The X register is
loaded with all zeros when DIENB is
HIGH.
The output of the C register (C8-0) and
X register (X8-0) provide the inputs of
the 9 x 9 multiplier. The multiplier is
followed by two pipeline registers,
FIGURE 2.
OUTPUT STAGE DIAGRAM
SHADD
ADR2-0.D
26
26
26
26
26
26
26
26
D
CELL RESULT
MUX
Q
26
0
0
18
ZERO
MUX
9-bit coefficients are loaded into the
C register (CIN8-0 ) and are output as
COUT8-0 (the COENB signal enables
the COUT8-0 outputs). The path
taken by the coefficients varies
according to the decimation mode
chosen. With no decimation, the
coefficients move directly from the
C register, bypassing all decimation
registers, and are available at the
output on the following clock cycle.
When decimation is chosen, the
coefficient output is delayed by 1, 2,
or 3 clock cycles depending on how
many decimation registers the
coefficients pass through (D1, D2, or
D3). The number of decimation
registers the coefficients pass
through is determined by DCM1-0 .
Refer to Table 1 for choosing a
decimation mode.
SIGN
EXTENSION
25-18
17-0
17-0
1
FILTER CELL DESCRIPTION
9 x 9-bit Digital Filter
26
OUTPUT
BUFFER
25-8
26
1
OUTPUT
MUX
0
26
D
Q
SENBL
SENBH
2
CLK
TO ALL REGISTERS
RESET.D
TO ALL REGISTERS
M REG0 and M REG1. The output of
the multiplier is sign extended and is
used as one of the inputs to the 26-bit
adder. The output of the 26-bit
accumulator provides the second
input to the adder. Both the accumulator and T register are loaded simultaneously with the output of the
adder.
The accumulator is loaded with the
output of the adder on every clock
cycle unless cleared. Clearing the
accumulator can be achieved using
two methods. The first method, when
both RESET and ERASE are LOW,
causes all accumulators and all
TRI-STATE
BUFFER
26
registers in the device to be cleared
together. RESET and ERASE are
latched and delayed internally causing the clearing to occur on the second
clock cycle after RESET and ERASE go
active.
The second method, when only
ERASE is LOW, clears a single accumulator of a selected cell. The cell is
selected using the ADR2-0 inputs
(decoded to Cell n). ERASE is latched
and delayed internally causing the
clearing to occur on the second clock
cycle after ERASE goes active. Refer
to Table 2 for clearing registers and
accumulators.
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LF43891
DEVICES INCORPORATED
TABLE 1.
9 x 9-bit Digital Filter
SIGNAL DEFINITIONS
DECIMATION MODE SELECTION
Decimation Function
Power
0
Decimation registers not used
VCC and GND
0
1
One decimation register used (decimation by one-half)
1
0
Two decimation registers used (decimation by one-third)
+5 V power supply. All pins must be
connected.
1
1
Three decimation registers used (decimation by one-fourth)
DCM1
DCM0
0
Clock
TABLE 2.
REGISTER
AND
ACCUMULATOR CLEARING
CLK — Master Clock
ERASE
RESET
Clearing Effect
0
0
All accumulators and all registers are cleared
0
1
Only the accumulator addressed by ADR2-0 is cleared
1
0
All registers are cleared (accumulators are not cleared)
1
1
No clearing occurs, internal state remains the same
OUTPUT STAGE DESCRIPTION
The 26-bit adder contained in the
output stage can add the contents of
any filter cell accumulator (selected by
ADR2-0) with the 18 most significant
bits of the output buffer. The result is
stored back into the output buffer.
The complete operation takes only one
clock cycle. The eight least significant
bits of the output buffer are lost.
The Zero multiplexer is controlled by
the SHADD input signal. This allows
selection of either the 18 most significant bits of the output buffer or all
zeros for the adder input. When
SHADD is LOW, all zeros will be
selected. When SHADD is HIGH, the
18 most significant bits of the output
buffer are selected enabling the shiftand-add operation. SHADD is
latched and delayed internally by one
clock cycle.
The output multiplexer is also controlled by the SHADD input signal.
This allows selection of either a filter
cell accumulator, selected by ADR2-0,
or the output buffer to be output to
the SUM25-0 bus. Only the 26 least
significant bits from either a filter cell
accumulator or the output buffer are
output on SUM25-0. If SHADD is
LOW during two consecutive clock
cycles (low during the current and
previous clock cycle), the output
multiplexer selects the contents of a
filter cell accumulator addressed by
ADR2-0. Otherwise, the output
multiplexer selects the contents of the
output buffer.
If the same address remains on the
ADR2-0 inputs for more than one clock
cycle, SUM25-0 will not change to
reflect any updates to the addressed
cell accumulator. Only the result from
the first selection of the cell (first clock
cycle) will be output. This allows the
interface of slow memory devices
where the output needs to be active
for more than one clock cycle. Normal
FIR operation is not affected because
ADR2-0 is changed sequentially.
NUMBER SYSTEMS
Data and coefficients can be represented as either 8-bit unsigned or 9-bit
two's complement numbers. All
values are represented as 9-bit two's
complement numbers internally. If
the most significant or sign bit is a
zero, the multiplier can multiply 8-bit
unsigned numbers.
The rising edge of CLK strobes all
registers. All timing specifications are
referenced to the rising edge of CLK.
Inputs
DIN8-0 — Data Input
9-bit data is latched into the X register
of each filter cell simultaneously. The
DIENB signal enables loading of the
data.
CIN8-0 — Coefficient Input
9-bit coefficients are latched into the C
register of Filter Cell 0. The CIENB
signal enables loading of the coefficients.
Outputs
SUM25-0 — Data Output
The 26-bit result from an individual
filter cell will appear when ADR2-0 is
used to select the filter cell result.
SHADD in conjunction with ADR2-0 is
used to select the output from the
shift-and-add output stage.
COUT8-0 — Coefficient Output
The 9-bit coefficient output from
Filter Cell 7 can be connected to the
CIN8-0 coefficient input of the same
LF43891 to recirculate the coefficients.
COUT8-0 can also be connected to the
CIN8-0 of another LF43891 to cascade
the devices. The COENB signal
enables the output of the coefficients.
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LF43891
DEVICES INCORPORATED
9 x 9-bit Digital Filter
Controls
DCM1-0 — Decimation Control
SENBH — MSB Output Enable
DIENB — Data Input Enable
The DCM1-0 inputs select the number of decimation registers to use
(Table 1). Coefficients are passed
from one cell to another at a rate
determined by DCM1-0 . When no
decimation registers are selected,
the coefficients are passed from cell
to cell on every rising edge of CLK
(no decimation). When one decimation register is selected, the coefficients are passed from cell to cell on
every other rising edge of CLK (2:1
decimation). When two decimation
registers are selected, the coefficients are passed from cell to cell on
every third rising edge of CLK (3:1
decimation) and so on. DCM1-0 is
latched and delayed internally.
When SENBH is LOW, SUM25-16 is
enabled. When SENBH is HIGH,
SUM25-16 is placed in a high-impedance state.
The DIENB input enables the X
register of every filter cell. While
DIENB is LOW, the X registers are
loaded with the data present at the
DIN8-0 inputs on the rising edge of
CLK. While DIENB is HIGH, all bits
of DIN8-0 are forced to zero and a
rising edge of CLK will load the X
register of every filter cell with all
zeros. DIENB must be low one clock
cycle prior to presenting the input
data on the DIN8-0 input since it is
latched and delayed internally.
CIENB — Coefficient Input Enable
The CIENB input enables the C and D
registers of every filter cell. While
CIENB is LOW, the C and appropriate
D registers are loaded with the
coefficient data on the rising edge of
CLK. While CIENB is HIGH, the
contents of the C and D registers are
held and the CLK signal is ignored.
By using CIENB in its active state,
coefficient data can be shifted from
cell to cell. CIENB must be low one
clock cycle prior to presenting the
coefficient data on the CIN8-0 input
since it is latched and delayed internally.
COENB — Coefficient Output Enable
The COENB input enables the
COUT8-0 output. When COENB is
LOW, the outputs are enabled. When
COENB is HIGH, the outputs are
placed in a high-impedance state.
ADR2-0 — Cell Accumulator Select
The ADR2-0 inputs select which cell’s
accumulator will available at the
SUM25-0 output or added to the
output stage accumulator. In both
cases, ADR2-0 is latched and delayed
by one clock cycle. If the same
address remains on the ADR2-0 inputs
for more than one clock cycle,
SUM25-0 will not change if the contents of the accumulator changes.
Only the result from the first selection
of the cell (first clock cycle) by ADR2-0
will be available. ADR2-0 is also used
to select which accumulator to clear
when ERASE is LOW.
SENBL — LSB Output Enable
When SENBL is LOW, SUM15-0 is
enabled. When SENBL is HIGH,
SUM15-0 is placed in a high-impedance state.
RESET — Register Reset Control
When RESET is LOW, all registers are
cleared simultaneously except the cell
accumulators. RESET can be used
with ERASE to clear all cell accumulators. RESET is latched and delayed
internally. Refer to Table 2.
ERASE — Accumulator Erase Control
When ERASE is LOW, the cell accumulator specified by ADR2-0 is
cleared. When RESET is LOW in
conjunction with ERASE, all cell
accumulators are cleared. Refer to
Table 2.
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LF43891
DEVICES INCORPORATED
9 x 9-bit Digital Filter
MAXIMUM RATINGS Above which useful life may be impaired (Notes 1, 2, 3, 8)
Storage temperature ........................................................................................................... –65°C to +150°C
Operating ambient temperature ........................................................................................... –55°C to +125°C
VCC supply voltage with respect to ground ............................................................................ –0.5 V to +7.0 V
Input signal with respect to ground ............................................................................... –0.5 V to V CC + 0.5 V
Signal applied to high impedance output ...................................................................... –0.5 V to VCC + 0.5 V
Output current into low outputs ............................................................................................................. 25 mA
Latchup current ............................................................................................................................... > 400 mA
OPERATING CONDITIONS To meet specified electrical and switching characteristics
Mode
Temperature Range (Ambient)
Active Operation, Commercial
Active Operation, Military
Supply Voltage
0°C to +70°C
4.75 V ≤ VCC ≤ 5.25 V
–55°C to +125°C
4.50 V ≤ VCC ≤ 5.50 V
ELECTRICAL CHARACTERISTICS Over Operating Conditions (Note 4)
Symbol
Parameter
Test Condition
Min
VOH
Output High Voltage
VCC = Min., IOH = –400 µA
VOL
Output Low Voltage
VCC = Min., IOL = 2.0 mA
VIH
Input High Voltage
VIL
Input Low Voltage
(Note 3)
IIX
Input Current
IOZ
Typ
Max
2.6
Unit
V
0.4
V
2.0
VCC
V
0.0
0.8
V
Ground ≤ VIN ≤ VCC (Note 12)
±10
µA
Output Leakage Current
(Note 12)
±10
µA
ICC1
VCC Current, Dynamic
(Notes 5, 6)
160
mA
ICC2
VCC Current, Quiescent
(Note 7)
750
µA
CIN
Input Capacitance
TA = 25°C, f = 1 MHz
10
pF
COUT
Output Capacitance
TA = 25°C, f = 1 MHz
10
pF
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LF43891
DEVICES INCORPORATED
9 x 9-bit Digital Filter
SWITCHING CHARACTERISTICS
COMMERCIAL OPERATING RANGE (0°C to +70°C) Notes 9, 10 (ns)
Symbol
1234567890123
1234567890123
1234567890123
50*
1234567890123
1234567890123
1234567890123
Min
Max
1234567890123
1234567890123
50
1234567890123
1234567890123
1234567890123
20
1234567890123
1234567890123
1234567890123
1234567890123
16
1234567890123
1234567890123
1234567890123
0
1234567890123
1234567890123
1234567890123
24
1234567890123
1234567890123
1234567890123
27
1234567890123
1234567890123
1234567890123
20
1234567890123
1234567890123
1234567890123
20
1234567890123
Parameter
tCYC
Cycle Time
tPW
Clock Pulse Width
tS
Input Setup Time
tH
Input Hold Time
tODC
Coefficient Output Delay
tODS
Sum Output Delay
tENA
Three-State Output Enable Delay (Note 11)
tDIS
Three-State Output Disable Delay (Note 11)
LF43891–
40
Min
33
Max
Min
39
33
16
13
14
13
0
0
Max
20
18
25
21
15
15
15
15
1234567890123
1234567890123
1234567890123
25*
1234567890123
1234567890123
1234567890123
Min
Max
1234567890123
1234567890123
25
1234567890123
1234567890123
1234567890123
10
1234567890123
1234567890123
1234567890123
1234567890123
10
1234567890123
1234567890123
1234567890123
0
1234567890123
1234567890123
1234567890123
16
1234567890123
1234567890123
1234567890123
18
1234567890123
1234567890123
1234567890123
12
1234567890123
1234567890123
1234567890123
12
1234567890123
MILITARY OPERATING RANGE (–55°C to +125°C) Notes 9, 10 (ns)
Symbol
LF43891–
1234567890123456789012345678901212345
1234567890123456789012345678901212345
*
1234567890123456789012345678901212345
50
40*
33*
1234567890123456789012345678901212345
1234567890123456789012345678901212345
Min
Max
Min
Max
Min
Max
1234567890123456789012345678901212345
1234567890123456789012345678901212345
1234567890123456789012345678901212345
50
39
33
1234567890123456789012345678901212345
1234567890123456789012345678901212345
1234567890123456789012345678901212345
20
16
13
1234567890123456789012345678901212345
1234567890123456789012345678901212345
1234567890123456789012345678901212345
20
17
13
1234567890123456789012345678901212345
1234567890123456789012345678901212345
1234567890123456789012345678901212345
0
0
0
1234567890123456789012345678901212345
1234567890123456789012345678901212345
1234567890123456789012345678901212345
24
20
18
1234567890123456789012345678901212345
1234567890123456789012345678901212345
1234567890123456789012345678901212345
1234567890123456789012345678901212345
31
25
21
1234567890123456789012345678901212345
1234567890123456789012345678901212345
1234567890123456789012345678901212345
20
15
15
1234567890123456789012345678901212345
1234567890123456789012345678901212345
1234567890123456789012345678901212345
20
15
15
1234567890123456789012345678901212345
Parameter
tCYC
Cycle Time
tPW
Clock Pulse Width
tS
Input Setup Time
tH
Input Hold Time
tODC
Coefficient Output Delay
tODS
Sum Output Delay
tENA
Three-State Output Enable Delay (Note 11)
tDIS
Three-State Output Disable Delay (Note 11)
SWITCHING WAVEFORMS
tPW
CLK
tS
tH
tPW
DIN8-0
CIN8-0
CONTROLS*
HIGH IMPEDANCE
OUTPUTS†
tODC
tODS
tDIS
tENA
OUTPUT ENABLES‡
*includes DIENB, CIENB, ERASE, RESET, SHADD, DCM1-0, and ADR2-0.
†includes SUM25-0 and COUT8-0.
‡includes SENBL, SENBH, and COENB.
123456789012345678901234
123456789012345678901234
123456789012345678901234
*DISCONTINUED SPEED GRADE
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LF43891
DEVICES INCORPORATED
9 x 9-bit Digital Filter
NOTES
1. Maximum Ratings indicate stress
specifications only. Functional operation of these products at values beyond
those indicated in the Operating Conditions table is not implied. Exposure to
maximum rating conditions for extended periods may affect reliability.
9. AC specifications are tested with
input transition times less than 3 ns,
output reference levels of 1.5 V (except
tDIS test), and input levels of nominally
0 to 3.0 V. Output loading may be a
resistive divider which provides for
specified IOH and IOL at an output
voltage of VOH min and VOL max
2. The products described by this spec- respectively. Alternatively, a diode
ification include internal circuitry de- bridge with upper and lower current
signed to protect the chip from damagsources of IOH and I OL respectively,
ing substrate injection currents and ac- and a balancing voltage of 1.5 V may be
cumulations of static charge. Neverthe- used. Parasitic capacitance is 30 pF
less, conventional precautions should minimum, and may be distributed.
be observed during storage, handling,
and use of these circuits in order to This device has high-speed outputs caavoid exposure to excessive electrical pable of large instantaneous current
stress values.
pulses and fast turn-on/turn-off times.
As a result, care must be exercised in the
3. This device provides hard clamping of testing of this device. The following
transient undershoot and overshoot. In- measures are recommended:
put levels below ground or above VCC
will be clamped beginning at –0.6 V and a. A 0.1 µF ceramic capacitor should be
VCC + 0.6 V. The device can withstand installed between VCC and Ground
indefinite operation with inputs in the leads as close to the Device Under Test
range of –0.5 V to +7.0 V. Device opera- (DUT) as possible. Similar capacitors
tion will not be adversely affected, how- should be installed between device VCC
ever, input current levels will be well in and the tester common, and device
ground and tester common.
excess of 100 mA.
4. Actual test conditions may vary from b. Ground and VCC supply planes
those designated but operation is guar- must be brought directly to the DUT
anteed as specified.
socket or contactor fingers.
5. Supply current for a given applica- c. Input voltages should be adjusted to
tion can be accurately approximated by: compensate for inductive ground and VCC
noise to maintain required DUT input
NCV2 F
levels relative to the DUT ground pin.
where
4
10. Each parameter is shown as a minN = total number of device outputs
C = capacitive load per output
V = supply voltage
F = clock frequency
6. Tested with all outputs changing every cycle and no load, at a 20 MHz clock
rate.
7. Tested with all inputs within 0.1 V of
VCC or Ground, no load.
8. These parameters are guaranteed
but not 100% tested.
11. For the tENA test, the transition is
measured to the 1.5 V crossing point
with datasheet loads. For the tDIS test,
the transition is measured to the
±200mV level from the measured
steady-state output voltage with
±10mA loads. The balancing voltage, V TH , is set at 3.5 V for Z-to-0
and 0-to-Z tests, and set at 0 V for Zto-1 and 1-to-Z tests.
12. These parameters are only tested at
the high temperature extreme, which is
the worst case for leakage current.
FIGURE A. OUTPUT LOADING CIRCUIT
S1
DUT
IOL
VTH
CL
IOH
FIGURE B. THRESHOLD LEVELS
tENA
OE
Z
tDIS
1.5 V
1.5 V
3.5V Vth
0
1.5 V
1.5 V
Z
1
VOL*
0.2 V
VOH*
0.2 V
0
Z
1
Z
0V Vth
VOL* Measured VOL with IOH = –10mA and IOL = 10mA
VOH* Measured VOH with IOH = –10mA and IOL = 10mA
imum or maximum value. Input requirements are specified from the point
of view of the external system driving
the chip. Setup time, for example, is
specified as a minimum since the external system must supply at least that
much time to meet the worst-case requirements of all parts. Responses from
the internal circuitry are specified from
the point of view of the device. Output
delay, for example, is specified as a
maximum since worst-case operation of
any device always provides data within
that time.
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LF43891
DEVICES INCORPORATED
9 x 9-bit Digital Filter
ORDERING INFORMATION
GND
SUM24
DCM1
SUM25
SENBH
VCC
ADR0
ADR1
GND
DCM0
ADR2
CLK
SHADD
COUT0
COUT1
GND
COUT2
COUT3
COUT4
COUT5
VCC
84-pin
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32
54
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53
COUT6
COUT7
GND
COUT8
COENB
VCC
ERASE
RESET
DIENB
DIN8
DIN7
DIN6
DIN5
DIN4
DIN3
DIN2
DIN1
DIN0
CIENB
CIN8
VCC
SUM6
GND
SUM5
SUM4
VCC
SUM3
SUM2
SUM1
SUM0
GND
SENBL
CIN0
CIN1
VCC
CIN2
CIN3
CIN4
CIN5
GND
CIN6
CIN7
SUM23
SUM22
VCC
SUM21
SUM20
SUM19
SUM18
GND
SUM17
SUM16
VCC
SUM15
SUM14
SUM13
SUM12
GND
SUM11
SUM10
SUM9
SUM8
SUM7
Plastic J-Lead Chip Carrier
(J3)
Speed
0°C to +70°C — COMMERCIAL SCREENING
40 ns
33 ns
LF43891JC40
LF43891JC33
Video Imaging Products
9
08/16/2000–LDS.43891-J
LF43891
DEVICES INCORPORATED
9 x 9-bit Digital Filter
GND
GND
SUM5
SUM4
VCC
SUM3
SUM2
SUM1
SUM0
GND
GND
SENBL
CIN0
CIN1
VCC
CIN2
CIN3
CIN4
CIN5
GND
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
SUM25
SENBH
VCC
VCC
ADR0
ADR1
GND
GND
DCM0
ADR2
CLK
SHADD
VCC
VCC
COUT0
COUT1
GND
GND
COUT2
COUT3
ORDERING INFORMATION
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
100-pin
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
80
DCM1
COUT4
1
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
79
SUM24
COUT5
2
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
78
GND
VCC
3
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
77
VCC
GND
4
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
76
SUM23
COUT6
5
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
75
SUM22
COUT7
6
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
74
VCC
GND
7
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
73
VCC
GND
8
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
72
SUM21
COUT8
9
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
71
SUM20
COENB
10
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
70
SUM19
VCC
11
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
69
SUM
18
VCC
12
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
68
GND
ERASE
13
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
67
GND
RESET
14
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
Top
66
SUM17
DIENB
15
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
65
DIN8
SUM16
16
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
View
64
VCC
DIN7
17
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
63
VCC
DIN6
18
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
62
SUM15
DIN5
19
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
61
SUM14
DIN4
20
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
60
SUM13
DIN3
21
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
59
SUM12
DIN2
22
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
58
GND
DIN1
23
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
57
DIN0
SUM11
24
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
56
SUM10
CIENB
25
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
55
SUM9
CIN8
26
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
54
SUM8
VCC
27
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
53
SUM7
CIN7
28
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
52
NC
CIN6
29
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
51
SUM6
GND
30
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
Discontinued Package
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
Plastic Quad Flatpack
(Q2)
Speed
0°C to +70°C — COMMERCIAL SCREENING
Video Imaging Products
10
08/16/2000–LDS.43891-J
LF43891
DEVICES INCORPORATED
9 x 9-bit Digital Filter
ORDERING INFORMATION
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
84-pin
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1
2
3
4
5
6
7
8
9
10
11
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
A
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
GND COENB VCC RESET DIN7 DIN6 DIN3 DIN0 CIN8 VCC GND
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
B
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
VCC COUT7 COUT8 ERASE DIN8 DIN1 DIN2 CIENB CIN7 CIN6 CIN4
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
C
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
DIENB DIN5 DIN4
CIN5 CIN3
COUT5 COUT6
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
D
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
CIN2 VCC
COUT3 COUT4
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
E
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
Top View
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
CIN1 CIN0 SENBL
COUT1 GND COUT2
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
Through Package
F
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
SUM0 VCC GND
GND COUT0 SHADD
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
(i.e., Component Side Pinout)
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
G
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
SUM1 SUM3 SUM2
ADR2 DCM0 CLK
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
H
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
SUM5 SUM4
ADR1 ADR0
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
J
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
SUM20 SUM17 SUM16
SUM7 GND
VCC SUM25
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
K
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
SENBH SUM24 GND VCC SUM19 GND SUM15 SUM12 SUM10 SUM8 SUM6
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
L
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
DCM1 SUM23 SUM22 SUM21 SUM18 SUM14 VCC SUM13 GND SUM11 SUM9
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
Discontinued Package
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121
Ceramic Pin Grid Array
(G3)
Speed
0°C to +70°C — COMMERCIAL SCREENING
–55°C to +125°C — COMMERCIAL SCREENING
–55°C to +125°C — MIL-STD-883 COMPLIANT
Video Imaging Products
11
08/16/2000–LDS.43891-J