Rainbow-electronics MAX3798 Manual de usuario descargar pdf (Pagina 31)

MAX3798

1.0625Gbps to 10.32Gbps, Integrated, Low-

Power SFP+ Limiting Amplifier and VCSEL Driver

______________________________________________________________________________________ 31

FUNCTION/

ADDRESS

NAME

NORMAL

MODE

SETUP

MODE

BIT

NUMBER

/TYPE

BIT NAME

DEFAULT

VALUE

NOTES

R RW 8 SET_IBIAS[8] 0 MSB bias DAC

R RW 7 SET_IBIAS[7] 0

R RW 6 SET_IBIAS[6] 0

R RW 5 SET_IBIAS[5] 0

R RW 4 SET_IBIAS[4] 0

R RW 3 SET_IBIAS[3] 1

R RW 2 SET_IBIAS[2] 0

R RW 1 SET_IBIAS[1] 0

Bias Current

Setting Register

Address = H0x08

SET_IBIAS

Accessible through

REG_ADDR = 13

0 SET_IBIAS[0] 0 LSB bias DAC

R RW 8 SET_IMOD[8] 0 MSB modulation DAC

R RW 7 SET_IMOD[7] 0

R RW 6 SET_IMOD[6] 0

R RW 5 SET_IMOD[5] 1

R RW 4 SET_IMOD[4] 0

R RW 3 SET_IMOD[3] 0

R RW 2 SET_IMOD[2] 1

R RW 1 SET_IMOD[1] 0

Modulation

Current Setting

Address = H0x09

SET_IMOD

Accessible through

REG_ADDR = 12

0 SET_IMOD[0] 0 LSB modulation DAC

R RW 7 IMODMAX[7] 0 MSB modulation limit

R RW 6 IMODMAX[6] 0

R RW 5 IMODMAX[5] 1

R RW 4 IMODMAX[4] 1

R RW 3 IMODMAX[3] 0

R RW 2 IMODMAX[2] 0

R RW 1 IMODMAX[1] 0

Maximum

Modulation

Current Setting

Address = H0x0A

IMODMAX

R RW 0 IMODMAX[0] 0 LSB modulation limit

R RW 7 IBIASMAX[7] 0 MSB bias limit

R RW 6 IBIASMAX[6] 0

R RW 5 IBIASMAX[5] 0

R RW 4 IBIASMAX[4] 1

R RW 3 IBIASMAX[3] 0

R RW 2 IBIASMAX[2] 0

R RW 1 IBIASMAX[1] 1

Maximum Bias

Current Setting

Address = H0x0B

IBIASMAX

R RW 0 IBIASMAX[0] 0 LSB bias limit

Table 7. Register Summary (continued)

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

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Rainbow-electronics MAX3798 Manual de usuario Pagina 31

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