AD8158 查看數據表（PDF） - Analog Devices
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AD8158 Datasheet PDF : 36 Pages
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AD8158
Table 12. Per Lane Disables
Address
Bit 7 Bit 6
0x40
0x80
0xC0
0x48
0x88
0xC8
Bit 5
Bit 4
Bit 3
RXDIS A3
RXDIS B3
RXDIS C3
TXDIS A3
TXDIS B3
TXDIS C3
Bit 2
RXDIS A2
RXDIS B2
RXDIS C2
TXDIS A2
TXDIS B2
TXDIS C2
Bit 1
RXDIS A1
RXDIS B1
RXDIS C1
TXDIS A1
TXDIS B1
TXDIS C1
Bit 0
RXDIS A0
RXDIS B0
RXDIS C0
TXDIS A0
TXDIS B0
TXDIS C0
Function
RXA disable
RXB disable
RXC disable
TXA disable
TXB disable
TXC disable
Table 13. Port-Level EQ Setting
Address
Bit 7 Bit 6 Bit 5
0x41
0x81
0xC1
Bit 4
Bit 3
AEQ[3]
BEQ[3]
CEQ[3]
Bit 2
AEQ[2]
BEQ[2]
CEQ[2]
Bit 1
AEQ[1]
BEQ[1]
CEQ[1]
Bit 0
AEQ[0]
BEQ[0]
CEQ[0]
Function
Port A equalizer
Port B equalizer
Port C equalizer
Table 14. Global Loss-of-Signal Squelch Control Register
Address
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3
0x04
GSQLCH_ENB
Bit 2
Bit 1
Bit 0
Function
Global squelch control
Table 15. Port-Level Loss-of-Signal Control Registers
Address Bit 7
Bit 6
Bit 5
Bit 4
0x50
Set to 0 Set to 0 THRBIT[5] THRBIT[4]
0x51
Set to 0 Set to 0 Set to 0 Set to 0
0x90
Set to 0 Set to 0 THRBIT[5] THRBIT[4]
0x91
Set to 0 Set to 0 Set to 0 Set to 0
0xD0
Set to 0 Set to 0 THRBIT[5] THRBIT[4]
0xD1
Set to 0 Set to 0 Set to 0 Set to 0
Bit 3
THRBIT[3]
Set to 0
THRBIT[3]
Set to 0
THRBIT[3]
Set to 0
Bit 2
THRBIT[2]
LOS_FILT
THRBIT[2]
LOS_FILT
THRBIT[2]
LOS_FILT
Bit 1
THRBIT[1]
LOS_GSEL
THRBIT[1]
LOS_GSEL
THRBIT[1]
LOS_GSEL
Bit 0
THRBIT[0]
LOS_ENB
THRBIT[0]
LOS_ENB
THRBIT[0]
LOS_ENB
Function
RXA LOS threshold
RXA LOS control
RXB LOS threshold
RXB LOS control
RXC LOS threshold
RXC LOS control
Table 16. Loss-of-Signal Configuration Bits
Bit(s)
Function
Description
THRBIT[5:0] LOS threshold
Binary coded value between 0 and 31. Covers ranges of 10 mV to 60 mV and 60 mV
to 250 mV for LOS_GSEL = 0 and LOS_GSEL = 1, respectively.
Recommended setting = 0x10.
LOS_FILT LOS filter
Loss-of-signal filter.
0: LOS integrates 2 ns of data.
1: LOS integrates 10 ns of data.
LOS_GSEL LOS sensitivity
LOS gain select.
Recommended setting = 0.
0: LOS covers an input range of 60 mV to 250 mV.
1: LOS covers an input range of 10 mV to 60 mV.
LOS_ENB LOS enable
LOS enable.
0: LOS function disabled
1: LOS function enabled
Default
0x1C
VIN_DC < 50 mV
1
1
1
Rev. 0 | Page 20 of 36
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