Rainbow-electronics MAX3799 Manual de usuario descargar pdf (Pagina 29)

MAX3799

1Gbps to 14Gbps, SFP+ Multirate Limiting

Amplifier and VCSEL Driver

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FUNCTION/

ADDRESS

NAME

NORMAL

MODE

SETUP

MODE

BIT

NUMBER

/TYPE

BIT NAME

DEFAULT

VALUE

NOTES

Receiver Control

Address = H0x00

RXCTRL1 R RW 1 RATE_SEL 0

Mode-select

0: high-gain mode, 1: high-

bandwidth mode

R RW 6 LOS_EN 1

LOS control

0: disable, 1: enable

(always 0 when RX_EN = 0)

R RW 5 LOS_POL 1

LOS polarity

0: inverse, 1: normal

R RW 4 RX_POL 1

Rx polarity

0: inverse, 1: normal

R RW 3 SQ_EN 0

Squelch

0: disable, 1: enable

R RW 2 RX_EN 1

Rx control

0: disable, 1: enable

R RW 1 RXDE_EN 0

Rx deemphasis

0: disable, 1: enable

Receiver Control

Address = H0x01

RXCTRL2

R RW 0 AZ_EN 1

Rx autozero control

0: disable, 1: enable

(always 0 when RX_EN = 0)

Receiver Status

Address = H0x02

RXSTAT R R 0 (sticky) LOS X Copy of LOS output signal

R RW 7 SET_CML[7] 0 MSB output level DAC

R RW 6 SET_CML[6] 1

R RW 5 SET_CML[5] 0

R RW 4 SET_CML[4] 1

R RW 3 SET_CML[3] 0

R RW 2 SET_CML[2] 0

R RW 1 SET_CML[1] 1

Output CML Level

Setting Register

Address = H0x03

SET_CML

R RW 0 SET_CML[0] 1 LSB output level DAC

R RW 5 SET_LOS[5] 0 MSB LOS threshold DAC

R RW 4 SET_LOS[4] 0

R RW 3 SET_LOS[3] 1

R RW 2 SET_LOS[2] 1

R RW 1 SET_LOS[1] 0

LOS Threshold

Level Setting

Address = H0x04

SET_LOS

R RW 0 SET_LOS[0] 0 LSB LOS threshold DAC

Table 7. Register Summary

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 35

Amplifier and VCSEL Driver 1

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Rainbow-electronics MAX3799 Manual de usuario Pagina 29

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