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Teilenummer | PDSP16318 |
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Beschreibung | PDSP16256GC1R | |
Hersteller | Mitel Networks Corporation | |
Logo | ||
Gesamt 8 Seiten 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
PDSP16318/16318A
ELECTRICAL CHARACTERISTICS
Test conditions (unless otherwise stated):
Tamb (Commercial) = 0°C to +70°C, VCC = 5.0V ± 5%, GND = 0V
Tamb (Industrial) =-40°C to +85°C, VCC = 5.0V ± 10%, GND = 0V
Tamb (Military) =-55°C to +125°C, VCC = 5.0V ± 10%, GND = 0V
STATIC CHARACTERISTICS
Characteristic
Symbol
Output high voltage
Output low voltage
Input high voltage
Input low voltage
Input leakage current
Output leakage current
Output SC current
Input capacitance
V
OH
VOL
V
IH
VIL
I
IL
loz
IOS
CIN
Min.
2.4
-
3.5
-
-10
-50
20
-
Value
Typ.
-
-
9
Max.
-
0.4
-
0.5
+10
+50
200
-
Units
V
V
V
V
µA
µA
mA
pF
Conditions
IOH = 3.2mA
lOL=-3.2mA
GND < V <V
IN CC
GND <VOUT < VCC
Vcc = Max
SWITCHING CHARACTERISTICS
Characteristic
Clock period
Clock High Time
Clock Low Time
A15:0, B15:0 setup to clock rising edge
A15:0, B15:0 hold after clock rising edge
MS, S2:0, ASI setup to clock rising edge
DEL, ASR, CLR setup to clock rising edge
DEL, ASR, CLR, MS, S2:0, ASI hold after
clock rising edge
CEA, CEB setup to clock falling edge
CEA, CEB hold after clock rising edge
Clock rising edge to OVR, C15:0, D15:0
OEC/OED low to C15:0/D15:0 high data valid
OEC/OED low to C15:0/D15:0 low data valid
OEC/OED high to C15:0/D15:0 high impedance
Vcc current
Vcc current
NOTES
1. LSTTL is equivalent to IOH = 20 microamps, IOL = -0.4mA
2. Current is defined as negative into the device
3. CMOS input levels are defined as:
VIL = 0.5
VIH = VDD - 0.5
6
Value
Industrial
Value
Military
PDSP16318A PDSP16318
Min. Max. Min. Max.
Units
Conditions
50 - 100 - ns
15 - 20 - ns
15 - 20 - ns
5 - 8 - ns
2 - 2 - ns
10 - 10 - ns
5 - 8 - ns
2 - 2 - ns
2 - 2 - ns
8 - 8 - ns
5 30 5 40 ns 2 x LSTTL + 20pF
- 30 - 40 ns 2 x LSTTL + 20pF
- 30 - 40 ns 2 x LSTTL + 20pF
- 30 - 40 ns 2 x LSTTL + 20pF
- 110 - 70 mA VCC = max,
TTL input levels
Outputs unloaded,
fCLK = max
- 60 - 30 mA VCC = max,
CMOS input levels
Outputs unloaded,
fCLK = max
6 Page | ||
Seiten | Gesamt 8 Seiten | |
PDF Download | [ PDSP16318 Schematic.PDF ] |
Teilenummer | Beschreibung | Hersteller |
PDSP16318 | PDSP16256GC1R | Mitel Networks Corporation |
PDSP16318A | PDSP16256GC1R | Mitel Networks Corporation |
PDSP16318GC1R | PDSP16256GC1R | Mitel Networks Corporation |
PDSP16318IG | PDSP16256GC1R | Mitel Networks Corporation |
PDSP16318MC | PDSP16256GC1R | Mitel Networks Corporation |
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