DAC38RF82_17 Datasheet, PDF (96/140 Pages) Texas Instruments – Dual-Channel, Differential-Output, 14-Bit, 9-GSPS, RF-Sampling DAC With JESD204B Interface, On-Chip PLL and Wide-Band Interpolation

DAC38RF82, DAC38RF89
SLASEA6B – FEBRUARY 2017 – REVISED AUGUST 2017
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8.5.48 JESD M and S Parameters Register (address = 0x4D) [reset = 0x0100]
Figure 99. JESD M and S Parameters Register (JESD_M_S)
15
14
13
12
11
10
9
8
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
7
6
5
4
3
2
1
0
0
1
0
0
1
1
0
1
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 95. JESD_M_S Field Descriptions
Bit Field
15:8 M_M1
7:5 Reserved
4:0 S_M1
Type
R/W
R/W
R/W
Reset
0x01
000
00000
Description
The number of streams per frame - 1. 0 ≤ M - 1 < 256
Reserved
The number of samples per stream per frame - 1.
8.5.49 JESD N, HD and SCR Parameters Register (address = 0x4E) [reset = 0x0F4F]
Figure 100. JESD N, HD and SCR Parameters Register (JESD_N_HD_SCR)
15
14
13
12
11
10
9
8
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
7
6
5
4
3
2
1
0
0
1
0
0
1
1
1
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Bit
15:13
12:8
7
6
5
4:0
Field
Reserved
NPRIME_M1
Reserved
HD
SCR
N_M1
Table 96. JESD_N_HD_SCR Field Descriptions
Type
R/W
R/W
R/W
R/W
R/W
R/W
Reset
000
01111
0
1
0
01111
Description
Reserved
The number of adjusted bits per sample - 1
Reserved
High density mode. Samples can cross the lane boundary
Turn on the scrambler
The number of bits per sample - 1
96
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