English
Language : 

ADC32RF80_16 Datasheet, PDF (60/136 Pages) Texas Instruments – Dual-Channel, 3-GSPS Telecom Receiver and Feedback Devices
◁
ADC32RF80, ADC32RF83
SBAS774A – MAY 2016 – REVISED DECEMBER 2016
www.ti.com
8.4.2.6 JESD204B Frame Assembly with Decimation (Dual-Band DDC): Complex Output
Table 21 lists the available JESD204B formats and valid ranges for the ADC32RF8x with decimation (dual-band
DDC) when using a complex output format. The ranges are limited by the SerDes line rate and the maximum
ADC sample frequency. The sample alignment on the different lanes is shown in Table 22.
DECIMATION
SETTING
(Complex)
Divide-by-8
Divide-by-9
Divide-by-10
Divide-by-12
Divide-by-16
Divide-by-18
Divide-by-20
Divide-by-24
Divide-by-32
Table 21. JESD Mode Options: Dual-Band Complex Output
NUMBER OF
ACTIVE DDCS
L
M
F
S
PLL
JESD JESD JESD
MODE MODE0 MODE1 MODE2
8
8
2
1
20X
1
0
0
2 per channel
4
8
4
1
40X
2
0
0
8
8
2
1
20X
1
0
0
2 per channel
4
8
4
1
40X
2
0
0
8
8
2
1
20X
1
0
0
2 per channel
4
8
4
1
40X
2
0
0
8
8
2
1
20X
1
0
0
2 per channel
4
8
4
1
40X
2
0
0
8
8
2
1
20X
1
0
0
2 per channel
4
8
4
1
40X
2
0
0
8
8
2
1
20X
1
0
0
2 per channel
4
8
4
1
40X
2
0
0
8
8
2
1
20X
1
0
0
2 per channel
4
8
4
1
40X
2
0
0
2 per channel
4
8
4
1
40X
2
0
0
2 per channel
4
8
4
1
40X
2
0
0
RATIO
[fSerDes / fCLK
(Gbps / GSPS)]
2.5
5
2.22
4.44
2
4
1.67
3.33
1.25
2.5
1.11
2.22
1
2
1.67
1.25
Table 22. JESD Sample Lane Assignment: Dual-Band Complex Output(1)
OUTPUT LANE
DA0
DA1
DA2
DA3
DB0
DB1
DB2
DB3
LMFS = 8821
A10[15:8]
A1Q0[15:8]
A2I0[15:8]
A2Q0[15:8]
B1I0[15:8]
B1Q0[15:8]
B2I0[15:8]
B2Q0[15:8]
A10[7:0]
A1Q0[7:0]
A2I0[7:0]
A2Q0[7:0]
B1I0[7:0]
B1Q0[7:0]
B2I0[7:0]
B2Q0[7:0]
A1I0[15:8]
A2I0[15:8]
B1I0[15:8]
B2I0[15:8]
LMFS = 4841
A1I0[7:0]
A2I0[7:0]
A1Q0[15:8]
A2Q0[15:8]
B1I0[7:0]
B2I0[7:0]
B1Q0[15:8]
B2Q0[15:8]
A1Q0[7:0]
A2Q0[7:0]
B1Q0[7:0]
B2Q0[7:0]
(1) Blue and green shading indicates the two bands for channel A; yellow and orange shading indicates the two bands for channel B.
60
Submit Documentation Feedback
Copyright © 2016, Texas Instruments Incorporated
Product Folder Links: ADC32RF80 ADC32RF83
 ▷