参数资料
型号: DS1874T+
厂商: Maxim Integrated
文件页数: 67/88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: 60
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: 管件
安装类型: 表面贴装
其它名称: 90-1874T+000
SFP+ Controller with Digital LDD Interface
Table 02h, Register B9h: COMP RANGING
FACTORY DEFAULT
READ ACCESS
WRITE ACCESS
MEMORY TYPE
00h
PW2
PW2
Nonvolatile (SEE)
B9h
RESERVED
BIAS 2
BIAS 1
BIAS 0
RESERVED
APC 2
APC 1
APC 0
BIT 7
BIT 0
The upper nibble of this byte controls the full-scale range of the quick-trip monitoring for BIAS. The lower nibble of
this byte controls the full-scale range for the quick-trip monitoring of the APC reference as well as the closed-loop
monitoring of APC.
BIT 7
RESERVED (Default = 0)
BIAS[2:0]: BIAS Full-Scale Ranging. 3-bit value to select the FS comparison voltage for BIAS found
on MON1. Default is 000b and creates an FS of 1.25V.
BIAS[2:0]
000b
001b
% of 1.25V
100.00
80.04
FS Voltage
1.250
1.0005
BITS 6:4
BIT 3
010b
011b
100b
101b
110b
111b
RESERVED (Default = 0)
66.73
50.10
40.12
33.46
28.70
25.13
0.8341
0.6263
0.5015
0.4183
0.3588
0.3141
APC[2:0]: APC Full-Scale Ranging. 3-bit value to select the FS comparison voltage for MON2 with
the APC. Default is 000b and creates an FS of 2.5V.
APC[2:0]
000b
001b
% of 2.50V
100.00
80.04
FS Voltage
2.500
2.0010
BITS 2:0
010b
011b
100b
101b
110b
111b
66.73
50.10
40.12
33.46
28.70
25.13
1.6683
1.2525
1.0030
0.8365
0.7175
0.6283
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67
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