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Mitel Networks Corporation

PDSP16510AB0GC Datasheet Preview

PDSP16510AB0GC Datasheet

Stand Alone FFT Processor

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PDSP1PD6S5P11605A10
Stand Alone FFT Processor
Supersedes version in December 1993 Digital Video & DSP IC Handbook, HB3923-1
DS3475 - 4.4 May 1996
The PDSP16510 performs Forward or Inverse Fast
Fourier Transforms on complex or real data sets containing up
to 1024 points. Data and coefficients are each represented by
16 bits, with block floating point arithmetic for increased
dynamic range.
An internal RAM is provided which can hold up to 1024
complex data points. This removes the memory transfer
bottleneck, inherent in building block solutions. Its organisa-
tion allows the PDSP16510 to simultaneously input new data,
transform data stored in the RAM, and to output previous
results. No external buffering is needed for transforms con-
taining up to 256 points, and the PDSP16510 can be directly
connected to an A/D converter to perform continuous trans-
forms. The user can choose to overlap data blocks by either
0%, 50%, or 75%. Inputs and outputs are synchronous to the
40MHz system clock used for internal operations.
A 1024 point complex transform can be completed in
some 98┬Ás, which is equivalent to throughput rates of 450
million operations per second. Multiple devices can be con-
nected in parallel in order to increase the sampling rate up to
the 40MHz system clock. Six devices are needed to give the
maximum performance with 1024 point transforms.
Either a Hamming or a Blackman-Harris window operator
can be internally applied to the incoming real or complex data.
The latter gives 67dB side lobe attenuation. The operator
values are calculated internally and do not require an external
ROM nor do they incur any time penalty.
The device outputs the real and imaginary components of
the frequency bins. These can be directly connected to the
PDSP16330 in order to produce magnitude and phase values
from the complex data.
ASSOCIATED PRODUCTS
PDSP16540 Bucket Buffer
PDSP16330 Pythagoras Processor.
PDSP16256 Programmable FIR Filter.
PDSP16350 I/Q Splitter / NCO
DATA INPUT
3 TERM
WINDOW
OPERATOR
COEFFICIENT
ROM
WORKSPACE
RAM
WORKSPACE
RAM
FOUR
DATA PATHS
OUTPUT
BUFFER
RESULT OUPUT
Fig. 1. Block Diagram
FEATURES
Completely self contained FFT Processor
Internal RAM supports up to1024 complex points
16 bit data and coefficients plus block floating point for
increased dynamic range
450 MIP operation gives 98 microsecond transforma-
tion times for 1024 points
Up to 40MHz sampling rates with multiple devices.
Internal window operator gives 67dB side lobe
attenuation and needs no external ROM.
84 pin PGA or 132 surface mount package
SAMPLE
CLOCK
ANALOG
INPUT
CONFIGURATION
WORD
DIS
AUX15:0
GND
INEN DOS
R15:0
PDSP16510
A/D D15:0
I15:0
DEF DEN DAV S3:0
CLK
X
PDSP16330
Y
PHASE
MAGNITUDE
GND
RESET
SCALE VALUE
AVAILABLE
Fig. 2. Typical 256 Point Real Only System Performing Continuous Transforms
1




Mitel Networks Corporation

PDSP16510AB0GC Datasheet Preview

PDSP16510AB0GC Datasheet

Stand Alone FFT Processor

No Preview Available !

PDSP16510
N
D9
D10 D12 D14
DIS
VDD
DAV
GND
AUX0
AUX2
AUX4
AUX6
AUX7
M D8
D11
D13
D15
DEF
INEN
SCLK
AUX1
AUX3
AUX5
AUX8
L D6 D7
AUX9 AUX10
K D4
D5
AUX11 AUX12
J D2 D3
AUX13 AUX14
H GND
D1
AUX15
GND
G D0 LFLG
DEN
I15
F VDD
R0
I14 VDD
E R1
R2
I12 I13
D R3
R4
I10 I11
C R5
R6
I8 I9
B R7
R10 R12 R14
S0 DOS S2
I0
I2
I4
I7
A R8
R9
R11 R13 R15 VDD
S1
GND
S3
I1
I3
I5 I6
1 2 3 4 5 6 7 8 9 10 11
Pin Out for 84 PGA Package (AC84) - bottom view
PIN FUNC
1 VDD
2 GND
3 I7
4 I8
5 I9
6 I10
7 VDD
8 I11
9 GND
10 I12
11 VDD
12 I13
13 GND
14 I14
15 VDD
16 I15
17 GND
18 DEN
19 AUX15
20 GND
21 AUX14
22 GND
PIN FUNC
23 AUX13
24 VDD
25 AUX12
26 GND
27 AUX11
28 VDD
29 GND
30 AUX10
31 AUX9
32 AUX8
33 AUX7
34 VDD
35 AUX6
36 VDD
37 AUX5
38 GND
39 AUX4
40 AUX3
41 AUX2
42 VDD
43 AUX1
44 AUX0
PIN FUNC
45 GND
46 VDD
47 SCLK
48 GND
49 GND
50 DAV
51 GND
52 INEN
53 VDD
54 DEF
55 GND
56 DIS
57 VDD
58 D15
59 D14
60 GND
61 D13
62 D12
63 D11
64 D10
65 VDD
66 D9
PIN FUNC
67 D8
68 D7
69 D6
70 D5
71 GND
72 VDD
73 D4
74 GND
75 D3
76 VDD
77 D2
78 GND
79 D1
80 VDD
81 D0
82 LFLG
83 GND
84 R0
85 GND
86 R1
87 VDD
88 R2
PIN FUNC
89 GND
90 R3
91 VDD
92 R4
93 GND
94 R5
95 R6
96 R7
97 R8
98 GND
99 VDD
100 R9
101 VDD
102 R10
103 R11
104 R12
105 R13
106 GND
107 R14
108 R15
109 DISAB
110 S0
12 13
PIN FUNC
111 GND
112 S1
113 GND
114 DOS
115 DOS
116 VDD
117 S2
118 GND
119 S3
120 GND
121 VDD
122 I0
123 I1
124 GND
125 I2
126 I3
127 I4
128 GND
129 VDD
130 I5
131 I6
132 VDD
Pin Out for 132 Leaded Chip Carrier (GC132)
2


Part Number PDSP16510AB0GC
Description Stand Alone FFT Processor
Maker Mitel Networks Corporation
Total Page 25 Pages
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