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GC5337 Datasheet(PDF) 17 Page - Texas Instruments

Part # GC5337
Description  Wideband Transmit-Receive Digital Signal Processors
PDF  49 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

GC5337 Datasheet(HTML) 17 Page - Texas Instruments

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GC5330
GC5337
www.ti.com
SLWS226 B
– DECEMBER 2010 – REVISED JANUARY 2011
The NCO contains a 48-bit frequency word and 48-bit accumulator, and operates at the DUC output sample rate.
The minimum resolution is the DUC output sample rate or DDC input sample rate divided by 248, or about 0.2
μHz for a 61.44-MSPS DUC output rate. The mixer and NCO can be used for frequency planning or fine
frequency control.
Per-channel phase can be adjusted in the mixer/NCO block with a 16-bit phase word, while per channel
fractional delay can be adjusted in the Farrow block.
Table 4. Number of FIR Filter Taps for Example Signal Types
Input
DUC Mode
DDC Mode
BBclk
Sample
Filter Type
Interp.
Decim.
No. of
Rate
Name
Max. Taps
Channels
Sym or
MHz
MSPS
1 or 2
1 or 2
Un-Sym
lte20_1
245.76
30.72
S
1
1
1
159
lte20_2
245.76
30.72
S
1
1
2
79
lte10_2
245.76
15.36
S
1
1
2
159
lte10_3
245.76
15.36
S
1
1
3
99
lte10_4
245.76
15.36
S
1
1
4
79
lte5_4
245.76
7.68
S
1
1
4
159
lte5_8
245.76
7.68
S
1
1
8
79
wimax20_r3
246.4
44.8
S
1
2
3
59
wimax20_t3
246.4
22.4
S
2
1
3
39
wimax20_r2
246.4
44.8
S
1
2
2
99
wimax20_t2
246.4
22.4
S
2
1
2
79
wimax20_r1
246.4
44.8
S
1
2
1
219
wimax20_t1
246.4
22.4
S
2
1
1
199
wimax10_r2
246.4
22.4
S
1
2
2
219
wimax10_t2
246.4
11.2
S
2
1
2
199
wimax10_r3
246.4
22.4
S
1
2
3
139
wimax10_t3
246.4
11.2
S
2
1
3
119
wimax10_r4
246.4
22.4
S
1
2
4
99
wimax10_t4
246.4
11.2
S
2
1
4
79
wimax5_r4
246.4
11.2
S
1
2
4
219
wimax5_t4
246.4
5.6
S
2
1
4
199
wimax5_r8
246.4
11.2
S
1
2
8
99
wimax5_t8
246.4
5.6
S
2
1
8
79
wbcdma_r4
245.76
7.68
S
1
1
4
159
wbcdma_t4
245.76
3.84
S
2
1
4
319
wbcdma_r8
245.76
7.68
S
1
1
8
79
wbcdma_t8
245.76
3.84
S
2
1
8
159
cdma_r12
245.76
2.4576
S
1
1
12
99
cdma_t12
245.76
1.2288
U
2
1
12
100
tdscdma_r12
245.76
2.56
S
1
1
12
99
tdscdma_t12
245.76
1.28
S
2
1
12
199
gsm_12
243.8
0.5417
S
1
1
12
99
eedge_12
243.8
1.625
S
1
1
12
99
wideband_60MHz_r
250
75
S
1
1
1
59
wideband_60MHz_t
250
75
S
2
1
1
39
© 2010–2011, Texas Instruments Incorporated
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