参数资料
型号: DS1874T+T&R
厂商: Maxim Integrated
文件页数: 75/88页
文件大小: 0K
描述: IC CTLR SFP+ ANLG LDD 28-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: 激光二极管控制器
通道数: 1
电源电压: 2.85 V ~ 3.9 V
电流 - 电源: 2.5mA
工作温度: -40°C ~ 95°C
封装/外壳: 28-WFQFN 裸露焊盘
供应商设备封装: 28-TQFN-EP(5x5)
包装: 带卷 (TR)
安装类型: 表面贴装
其它名称: 90-1874T+TRL
SFP+ Controller with Digital LDD Interface
Table 02h, Register C7h: TBLSELPON
FACTORY DEFAULT
READ ACCESS
WRITE ACCESS
MEMORY TYPE
00h
PW2 or (PW1 and RWTBL246) or (PW1 and RTBL246)
PW2 or (PW1 and RWTBL246)
Nonvolatile (SEE)
C7h
2 7
2 6
2 5
2 4
2 3
2 2
2 1
2 0
BIT 7
Chooses the initial value for the table-select byte (Lower Memory, Register 7Fh) at power-on.
Table 02h, Register C8h–C9h: MAN BIAS
BIT 0
FACTORY DEFAULT
READ ACCESS
WRITE ACCESS
MEMORY TYPE
0000h
PW2 or (PW1 and RWTBL246) or (PW1 and RTBL246)
(PW2 and BIAS EN = 0) or (PW1 and RWTBL246 and BIAS EN = 0)
Volatile
C8h
C9h
0
2 7
0
2 6
0
2 5
0
2 4
0
2 3
0
2 2
0
2 1
2 8
2 0
BIT 7
BIT 0
When BIAS EN (Table 02h, Register 80h) is written to 0, writes to these bytes control the BIAS register, which then
updates the MAX3798/MAX3799 SET_IBIAS register.
Table 02h, Register CAh: MAN_CNTL
FACTORY DEFAULT
READ ACCESS
WRITE ACCESS
MEMORY TYPE
00h
PW2 or (PW1 and RWTBL246) or (PW1 and RTBL246)
(PW2 and BIAS EN = 0) or (PW1 and RWTBL246 and BIAS EN = 0)
Volatile
CAh
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
MAN_CLK
BIT 7
BIT 0
When BIAS EN (Table 02h, Register 80h) is written to 0, MAN_CLK controls the updates of the MAN BIAS value to
the BIAS register. This new value is sent through the 3-wire interface. The values of MAN BIAS must be written with
a separate write command. Setting MAN_CLK to a 1 clocks the MAN BIAS value to the BIAS register, which then
updates the MAX3798/MAX3799 SET_IBIAS register.
1) Write the MAN BIAS value with a write command.
2) Set the MAN_CLK bit to a 1 with a separate write command.
3) Clear the MAN_CLK bit to a 0 with a separate write command.
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