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| 型号： | DS1864T+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 21/72页 |
| 文件大小： | 0K |
| 描述： | IC LASER CTRLR 1CHAN 5.5V 28TQFN |
| 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（光纤） |
| 通道数： | 1 |
| 电源电压： | 2.97 V ~ 5.5 V |
| 电流 - 电源： | 3mA |
| 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 |
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SFP Laser Controller and
Diagnostic IC
Table 6. MON3 Hysteresis Threshold
Values
MON3
TIMESLICE
# OF RIGHT
SHIFTS
FINE MODE MAX
(HEX)
COURSE MODE
MIN* (HEX)
0
1
2
FFF8
7FFC
3FFE
F000
7800
3C00
PERFORM FINE
MODE CONVERSION
3
4
5
6
1FFF
0FFF
07FF
03FF
1E00
0F00
0780
03C0
DID PRIOR MON3
TIMESLICE RESULT IN A
COURSE CONV.?
(RSSIS = 1?)
Y
7
01FF
01E0
N
WAS CURRENT FINE
MODE CONV. <
N
* This is the minimum reported course mode conversion.
COURSE MIN?
Table 7. MON3 Configuration Registers
DID CURRENT FINE
MODE CONV.
Y
Y
FINE MODE
COURSE
REACH MAX?
PERFORM COURSE
GAIN REGISTER
OFFSET REGISTER
RIGHT SHIFT REGISTER
98 to 99h,
Table 04h*
A8 to A9h,
Table 04h*
8Fh,
Table 04h*
9A to 9Bh,
Table 04h*
AA to ABh,
Table 04h*
N/A
N
RSSIS BIT = 0
REPORT FINE
CONVERSION RESULT
MODE CONVERSION
RSSIS BIT = 1
REPORT COURSE
CONVERSION RESULT
RSSIC AND RSSIF BITS
RSSIS BIT
MON3 MEASUREMENT
8Ah, Table 04h*
77h, Lower Memory
68 to 69h, Lower Memory
* Table 04h in DS1852 configuration or Table 01h in DS1859
configuration.
shutdown signals. Alarm and warning thresholds keep
the system functioning within user-programmed para-
meters. All alarm and warning flags are active high.
Fast-trip alarms and warnings can be configured to
overwrite the diagnostic flags for the same function.
Laser safety features are also implemented to accept
and send alarm signals to control laser activity.
Fast-Trips
The three monitor channels (MON1, MON2, and MON3)
have associated fast channels. A sequencer with fast-trip
comparators monitors the three voltage channels: MON1
(Bias Current (IBI)), MON2 (Transmitted Power (TXP)),
and MON3 (Received Power (RIN)). These signals are the
same raw (uncalibrated) signals used for the diagnostic
circuits. Five fast-trip flags (alarms and warnings) are
generated: high-bias alarm (HBAL), high-bias warning
(HBWA), high transmitted power (HTXP), low transmitted
power (LTXP), and loss of received signal (LOS), see
END OF MON3
TIMESLICE
Figure 15. Dual-Range Functionality Flowchart
Figure 12. These flags are located in Lower Memory, byte
73h. These flags are latched temporarily by design as
required by the sequencer. In order to disable a com-
parator, set its threshold to 00h for low flags and FFh for
high flags. The FT_enable bit (bit 3, byte 80h, Table 04h
(Table 01h in DS1859 configuration)) determines if fast-
trip alarms are enabled or disabled.
The thresholds for HBAL and HBWA can be pro-
grammed to be temperature compensated. Registers
B0h to B7h for HBAL and B8h to BFh for HBWA of
Table 04h (Table 01h in DS1859 configuration) are
where the temperature-compensated alarm and warn-
ing thresholds are stored. Register DBh of Table 04h
(Table 01h in DS1859 configuration) is the location of
the HTXP programmable threshold. Register DCh of
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1864T+ | 功能描述:激光驱动器 SFP Laser Controller & Diagnostic IC RoHS:否 制造商:Micrel 数据速率:4.25 Gbps 工作电源电压:3 V to 3.6 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:QFN-16 封装:Tube |
| DS1864T+T&R | 制造商:Maxim Integrated Products 功能描述:DUAL TMP CTRL DAC+MON QFN T&R LF - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC LASER CTRLR 1CHAN 5.5V 28TQFN |
| DS1864T+T&R | 功能描述:激光驱动器 SFP Laser Controller & Diagnostic IC RoHS:否 制造商:Micrel 数据速率:4.25 Gbps 工作电源电压:3 V to 3.6 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:QFN-16 封装:Tube |
| DS1865 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:PON Triplexer Control and Monitoring Circuit |
| DS1865_09 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:PON Triplexer Control and Monitoring Circuit |
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