LMH6401_16 Datasheet, PDF (23/48 Pages) Texas Instruments – LMH6401 DC to 4.5 GHz, Fully-Differential, Digital Variable-Gain Amplifier

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9.6 Register Maps
Table 3 lists the SPI register map.
ADDRESS
(A[6:0])
0
1
2
3
4
5
6-127
Table 3. SPI Register Map
R/W
REGISTER
R
Revision ID
R
Product ID
R/W
Gain Control
R/W
Reserved
R/W
Thermal feedback gain control
R/W
Thermal feedback frequency control
R
Reserved
LMH6401
SBOS730A – APRIL 2015 – REVISED MAY 2015
DEFAULT (Hex)
03h
00h
20h (minimum gain)
8Ch
27h
45h
00h
9.6.1 Revision ID (address = 0h, Read-Only) [default = 03h]
Figure 53. Revision ID
7
6
5
R-0b
R-0b
R-0b
LEGEND: R = Read only; -n = value after reset
4
3
Revision ID
R-0b
R-0b
2
R-0b
1
R-1b
0
R-1b
Bit Field
7-0 Revision ID
Table 4. Revision ID Field Descriptions
Type
R
Default Description
00000011 Revision identification bits.
9.6.2 Product ID (address = 1h, Read-Only) [default = 00h]
Figure 54. Product ID
7
6
5
R-0b
R-0b
R-0b
LEGEND: R = Read only; -n = value after reset
4
3
Product ID
R-0b
R-0b
2
R-0b
1
R-0b
0
R-0b
Bit Field
7-0 Product ID
Table 5. Product ID Field Descriptions
Type
R
Default Description
00000000 Product identification bits.
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