GC5330IZEV Datasheet, PDF (17/49 Pages) Texas Instruments – Wideband Transmit-Receive Digital Signal Processors

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GC5330
GC5337
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.
Name
lte20_1
lte20_2
lte10_2
lte10_3
lte10_4
lte5_4
lte5_8
wimax20_r3
wimax20_t3
wimax20_r2
wimax20_t2
wimax20_r1
wimax20_t1
wimax10_r2
wimax10_t2
wimax10_r3
wimax10_t3
wimax10_r4
wimax10_t4
wimax5_r4
wimax5_t4
wimax5_r8
wimax5_t8
wbcdma_r4
wbcdma_t4
wbcdma_r8
wbcdma_t8
cdma_r12
cdma_t12
tdscdma_r12
tdscdma_t12
gsm_12
eedge_12
wideband_60MHz_r
wideband_60MHz_t
Table 4. Number of FIR Filter Taps for Example Signal Types
BBclk
MHz
245.76
245.76
245.76
245.76
245.76
245.76
245.76
246.4
246.4
246.4
246.4
246.4
246.4
246.4
246.4
246.4
246.4
246.4
246.4
246.4
246.4
246.4
246.4
245.76
245.76
245.76
245.76
245.76
245.76
245.76
245.76
243.8
243.8
250
250
Input
Sample
Rate
MSPS
30.72
30.72
15.36
15.36
15.36
7.68
7.68
44.8
22.4
44.8
22.4
44.8
22.4
22.4
11.2
22.4
11.2
22.4
11.2
11.2
5.6
11.2
5.6
7.68
3.84
7.68
3.84
2.4576
1.2288
2.56
1.28
0.5417
1.625
75
75
Filter Type
Sym or
Un-Sym
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
U
S
S
S
S
S
S
DUC Mode
Interp.
1 or 2
1
1
1
1
1
1
1
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
1
1
2
DDC Mode
Decim.
1 or 2
1
1
1
1
1
1
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
No. of
Channels
1
2
2
3
4
4
8
3
3
2
2
1
1
2
2
3
3
4
4
4
4
8
8
4
4
8
8
12
12
12
12
12
12
1
1
Max. Taps
159
79
159
99
79
159
79
59
39
99
79
219
199
219
199
139
119
99
79
219
199
99
79
159
319
79
159
99
100
99
199
99
99
59
39
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