参数资料
| 型号： | DS1862AB+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 18/42页 |
| 文件大小： | 0K |
| 描述： | IC LASR CTRLR 7CHAN 5.5V 25CSBGA |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 126 |
| 类型： | 激光二极管控制器（光纤） |
| 数据速率： | 10Gbps |
| 通道数： | 7 |
| 电源电压： | 2.9 V ~ 5.5 V |
| 电流 - 电源： | 3mA |
| 工作温度： | -40°C ~ 100°C |
| 封装/外壳： | 25-TFBGA，CSPBGA |
| 供应商设备封装： | 25-BGA（5x5） |
| 包装： | 管件 |
| 安装类型： | 表面贴装 |
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XFP Laser Control and Digital Diagnostic IC
fault functionality, current on the BIASSET pin is moni-
tored by the DS1862A to control the HIGH BIAS quick-
trip alarm. Similar to TX-P, the RSSI pin is used to
measure the received power, RX-P.
Measuring Voltage Quantities
using AUX1MON and AUX2MON
AUX1MON and AUX2MON are auxiliary monitor inputs
that may be used to measure additional parameters.
AUX1/2MON feature a user-selectable register that
determines the measured value’s units (i.e., voltage,
current, or temperature). In addition to indicating units,
some of the 4-bit op codes, in Table 5, also place the
part in special modes used for alarms and faults inter-
nally. Whichever units’ scale is selected, the DS1862A
is only capable of measuring a positive voltage quanti-
Table 5. AUX1/2MON Functionality
Selection (Unit Selection)
ty, therefore internal or external calibration may be
required to get the binary value to match the measured
quantity. A table of acceptable units and/or their corre-
sponding user-programmable 4-bit op code is provid-
ed below.
Alarms and Warning Flags
Based on Monitor Channels
All of the monitor channels feature alarm and warning
flags that are asserted automatically as user-pro-
grammed thresholds are internally compared with mon-
itor channel results. Flags may be set, which, if not
masked, will generate an interrupt on the INTERRUPT
pin or generate a safety fault. Whenever V CC2/3 ,
AUX2MON, AUX1MON, RSSI, and internal temperature
go beyond their threshold trip points and the corre-
sponding mask bit is 0, an interrupt is generated on the
INTERRUPT pin and a corresponding warning or alarm
flag is set. Similarly, a safety fault occurs whenever
BMD or BIASSET go beyond threshold trip points.
When this happens, the FETG pin immediately asserts
VALUE
0000b
0001b
0010b
0011b
DESCRIPTION OF AUX1/2MON INTENDED USE
(UNITS OF MEASURE)
Auxiliary monitoring not implemented
APD bias voltage (16-bit value is voltage in units
of 10mV)
Reserved
TEC current (mA) (16-bit value is current in units
of 0.1mA)
and BIASSET and MODSET currents are shut down.
Monitor Channel Conversion Example
Table 6 provides an example of how a 16-bit ADC code
corresponds to a real life measured voltage using the
factory-set calibration on either RSSI or IBIASMON. By
factory default, the LSB is set to 38.147μV.
Table 6. A/D Conversion Example
0100b
0101b
Laser temperature (same encoding as module
temperature)
Laser wavelength
MSB (BIN)
11000000
10000000
LSB (BIN)
00000000
10000000
VOLTAGE (V)
1.875
1.255
0110b
0111b
1000b
1001b
1010b
1101b
+5V supply voltage (encoded as primary voltage
monitor)
+3.3V supply voltage (encoded as primary
voltage monitor)
+1.8V supply voltage (encoded as primary
voltage monitor) (V CC2 )
-5.2V supply voltage (encoded as primary voltage
monitor)
+5V supply current (16-bit value is current in
0.1mA)
+3.3V supply current (16-bit value is current in
0.1mA)
To calculate V CC2 , V CC3 , AUX1MON, or AUX2MON,
convert the unsigned 16-bit value to decimal and multi-
ply by 100μV.
To calculate the temperature (internal), treat the two’s-
complement value binary number as an unsigned
binary number, then convert it to decimal and divide by
256. If the result is grater than or equal to 128, subtract
256 from the result.
Temperature: high byte = -128°C to +127°C signed;
low byte = 1/256°C.
Table 7. Temperature Bit Weights
1110b
+1.8V supply current (16-bit value is current in
0.1mA)
S
2 -1
2 6
2 -2
2 5
2 -3
2 4
2 -4
2 3
2 -5
2 2
—
2 1
—
2 0
—
1111b
-5.2V supply current (16-bit value is current in
0.1mA)
18
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1862AB+ | 功能描述:激光驱动器 XFP Laser Control & Digital Diagnostic 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 |
| DS1862AB+T&R | 制造商:Maxim Integrated Products 功能描述:XFP LASER CONTROL 25CSBGA - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC LASR CTRLR 7CHAN 5.5V 25CSBGA |
| DS1862AB+T&R | 功能描述:激光驱动器 XFP Laser Control & Digital Diagnostic 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 |
| DS1862AB+TR | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:XFP Laser Control and Digital Diagnostic IC |
| DS1862B | 功能描述:激光驱动器 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 |
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