LMH0394_15 Datasheet, PDF (21/35 Pages) Texas Instruments – 3G HD/SD SDI Low Power Extended Reach Adaptive Cable Equalizer

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LMH0394
SNLS312M – AUGUST 2010 – REVISED JULY 2015
Register Maps (continued)
Address
R/W
Name
Table 1. SPI Registers (continued)
Bits
Field
7:6
Reserved
5
MUTE_REF Mode
03h
R/W
MUTE_REF
4:0
Digital MUTE_REF
Setting
7:6
Reserved
04h
R
Device ID
5:4
EQ ID
3:0
Die Revision
7:6
Reserved
05h
R
Rate Indicator
5
Rate Indicator
4:0
Reserved
06h
R
Cable Length
Indicator
7:0
Cable Length
Indicator
07h
R
Launch Amplitude
7:2
Indication
Launch Amplitude
Indication
1:0
Reserved
Default
00
0
11111
00
01
0011
00
11000
Description
Reserved as 00.
Always write 00 to
these bits.
0: Use MUTE_REF
pin.
1: Use digital
MUTE_REF.
Digital MUTE_REF
(10m per step).
00000: Mute when
cable (EQ boost) ≥
10 m.
......
01111: Mute when
cable (EQ boost) ≥
160 m.
......
11111: Never mute.
Reserved.
00: LMH0384
device.
01: LMH0394
device.
10: LMH0395
device.
11: Reserved.
Die revision.
Reserved.
0: SD.
1: 3G/HD.
Reserved.
Cable Length
Indicator (CLI), with
10% accuracy.
00000000: Short
cable.
......
11110111:
Maximum cable.
11111000:
Reserved.
......
11111111:
Reserved.
Indication of launch
amplitude: 1% or
0.08 dB per step
with 5% accuracy.
000000: Nominal -
32%.
......
011111: Nominal -
1%.
100000: Nominal.
100001: Nominal
+1%.
......
111111: Nominal
+31%.
Reserved.
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