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Mitel Networks Corporation

PDSP16318GC1R Datasheet Preview

PDSP16318GC1R Datasheet

PDSP16256GC1R

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Supersedes version DS3708 - 2.4 September 1996
PDSP16318/PPDDSSPP16131683/1163818AA
Complex Accumulator
Advance Information
DS3708 - 3.1 November 1998
The PDSP16318/A contains two independent 20-bit
Adder/Subtractors combined with accumulator registers and
shift structures. The four port architecture permits full 20MHz
throughout in FFT and filter applications.
Two PDSP16318As combined with a single PDSP16112A
Complex Multiplier provide a complete arithmetic solution for
a Radix 2 DIT FFT Butterfly. A new complex Butterfly result
can be generated every 50ns allowing 1K complex FFTs to be
executed in 256µs.
GC100
FEATURES
s Full 20MHz Throughout in FFT Applications
s Four Independent 16-bit I/O Ports
s 20-bit Addition or Accumulation
s Fully Compatible with PDSP16112 Complex Multiplier
s On Chip Shift Structures for Result Scaling
s Overflow Detection
s Independent Three-State Outputs and Clock
Enables for 2 Port 20MHz Operation
s 1.4 micron CMOS
s 500mW Maximum Power Dissipation
s 100 CQFP package
APPLICATIONS
s High speed Complex FFT or DFTs
s Complex Finite Impulse Response (FIR) Filtering
s Complex Conjugation
s Complex Correlation/Convolution
Fig.1 Pin connections - Top view (GC100)
ASSOCIATED PRODUCTS
PDSP16112 16 x 12 Complex Multiplier
PDSP16116 16 x 16 Complex Multiplier
PDSP1601 ALU and Barrel Shifter
PDSP16330 Pythagoras Processor
ORDERING INFORMATION
Industrial (-40°C to +85°C)
PDSP16318A/IG/GC1R (20MHz - QFP)
Military (-55°C to +125°C)
PDSP16318/MC/GC1R (10MHz - QFP
MIL STD 883C Screened)
N.B. Further details of the Military grade part are available
in a separate datasheet
A REG
DELAY
B
SHIFT
REG
C
A
B REG
A
SHIFT
B
Fig. 2 PDSP16318 simplified block diagram
REG
D
1




Mitel Networks Corporation

PDSP16318GC1R Datasheet Preview

PDSP16318GC1R Datasheet

PDSP16256GC1R

No Preview Available !

PDSP16318/16318A
CEA
16
A
16
A REG
8
CYCLE
DELAY
CLK
16
B
16
REG
CEB
DEL
MUX
ASR
S2:0
20
B
A
20 16
SHIFT
REG
MUX
20
20
REG
20
MUX
MS
20 REG
CLR
A
16
SHIFT
REG
20
B
ASI
Fig. 3 Block diagram
OEC
16
D
OVR
16
D
OED
2


Part Number PDSP16318GC1R
Description PDSP16256GC1R
Maker Mitel Networks Corporation
Total Page 8 Pages
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