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PDF PDSP16318MC Data sheet ( Hoja de datos )
| Número de pieza | PDSP16318MC | |
| Descripción | Complex Accumulator | |
| Fabricantes | Zarlink Semiconductor | |
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PDSP16318 MC
PDSP16318 MC
Complex Accumulator
DS3761
ISSUE 2.1
November 1998
The PDSP16318 contains two independent 20-bit Adder/
Subtractors combined with accumulator registers and shift
structures. The four port architecture permits full 10MHz
throughout in FFT and filter applications.
Two PDSP16318s 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 100ns allowing 1k complex FTT's to
to be executed in 512µs.
FEATURES
s Full 10MHz 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 10MHz Operation
s 1.4 micron CMOS
s 500mW Maximum Power Dissipation
s 100 pin ceramic QFP
ORDERING INFORMATION
PDSP16318/MC/GC1R (Ceramic QFP Package -
MIL STD 883 Screening)
GC100
Fig.1 Pin connections
Rev
Date
AB
MAR 1993 NOV 1998
C
D
NOTE
Polyimide is used as an inter-layer dielectric and as
glassivation.
A REG
DELAY
B
SHIFT
REG
C
A
B REG
A
SHIFT
REG
D
B
Fig.2 PDSP16318 simplified block diagram
1
1 page  
Test
Waveform - measurement level
Delay from ouput
high to output
high impedance
VH
0.5V
Delay from ouput
low to output
high impedance
VL
0.5V
Delay from ouput
high impedance to
Output low
1.5V
0.5V
Delay from ouput
high impedance to
Output high
1.5V
0.5V
NOTES
1. VH - Voltage reached when output driven high
2. VL - Voltage reached when output driven low
PDSP16318 MC
IOL
1.5V
IOH
DUT
100p
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet PDSP16318MC.PDF ] | |
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