- 您现在的位置：买卖IC网 > PDF目录16542 > DC1786A (Linear Technology)BOARD DEMO LTC2871 PDF资料下载
参数资料
| 型号： | DC1786A |
| 厂商： | Linear Technology |
| 文件页数： | 33/36页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO LTC2871 |
| 设计资源： | DC1786A Design Files DC1786A Schematic |
| 标准包装： | 1 |
| 主要目的： | 接口，收发器，RS-232/RS-485 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | LTC2871 |
| 主要属性： | 3 个驱动器，3 个接收器 |
| 次要属性： | 3 V ~ 5.5 V 电源 |
| 已供物品： | 板 |
| 相关产品： | LTC2871CUHF#PBF-ND - IC TXRX RS485/RS422 38-QFN LTC2871IUHF#PBF-ND - IC TXRX RS485/RS422 38-QFN LTC2871CFE#PBF-ND - IC TXRX RS485/RS422 38-TSSOP LTC2871IFE#PBF-ND - IC TXRX RS485/RS422 38-TSSOP LTC2871CUHF#TRPBF-ND - IC TXRX RS485/RS422 38-QFN LTC2871IFE#TRPBF-ND - IC TXRX RS485/RS422 38-TSSOP LTC2871IUHF#TRPBF-ND - IC TXRX RS485/RS422 38-QFN LTC2871CFE#TRPBF-ND - IC TXRX RS485/RS422 38-TSSOP |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页当前第33页第34页第35页第36页
LTC2870/LTC2871
6
28701f
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = VL = 3.3V, TE485 = 0V, LB = 0V unless otherwise noted. VL ≤ VCC.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
RS485 AC Characteristics
Maximum Data Rate
(Note 3)
l
20
Mbps
tPLHD485
tPHLD485
Driver Propagation Delay
RDIFF = 54Ω, CL = 100pF (Figure 4)
l
20
70
ns
Driver Propagation Delay Difference
|tPLHD485 – tPHLD485|
RDIFF = 54Ω, CL = 100pF (Figure 4)
l
16
ns
tSKEWD485
Driver Skew (Y to Z)
RDIFF = 54Ω, CL = 100pF (Figure 4)
l
1±6
ns
tRD485, tFD485
Driver Rise or Fall Time
RDIFF = 54Ω, CL = 100pF (Figure 4)
l
15
ns
tZLD485, tZHD485,
tLZD485, tHZD485
Driver Output Enable or Disable Time
FEN = VL, RL = 500Ω, CL = 50pF (Figure 5)
l
120
ns
tZHSD485, tZLSD485 Driver Enable from Shutdown
RL = 500Ω, CL = 50pF (Figure 5)
l
8μs
tPLHR485, tPHLR485 Receiver Input to Output
CL = 15pF, VCM = 1.5V, |A – B| = 1.5V
(Figure 6) (Note 5)
l
65
85
ns
tSKEWR485
Differential Receiver Skew
|tPLHR485 – tPHLR485|
CL = 15pF (Figure 6)
l
16
ns
tRR485, tFR485
Receiver Output Rise or Fall Time
CL = 15pF (Figure 6)
l
315
ns
tZLR485, tZHR485,
tLZR485, tHZR485
Receiver Output Enable or Disable Time
FEN = VL, RL = 1kΩ, CL = 15pF (Figure 7)
l
50
ns
tRTEN485, tRTZ485
Termination Enable or Disable Time
FEN = VL, VB = 0V, VAB = 2V (Figure 8) (Note 5) l
100
μs
RS232 AC Characteristics
Maximum Data Rate
RL = 3kΩ, CL = 2500pF
RL = 3kΩ, CL = 500pF
(Note 3)
l
100
500
kbps
Driver Slew Rate (Figure 9)
RL = 3kΩ, CL = 2500pF
RL = 3kΩ, CL = 50pF
l
4
30
V/μs
tPHLD232, tPLHD232 Driver Propagation Delay
RL = 3kΩ, CL = 50pF (Figure 9)
l
12
μs
tSKEWD232
Driver Skew
RL = 3kΩ, CL = 50pF (Figure 9)
50
ns
tZLD232, tZHD232,
tLZD232, tHZD232
Driver Output Enable or Disable Time
FEN = VL, RL = 3kΩ, CL = 50pF (Figure 10)
l
0.4
2
μs
tPHLR232, tPLHR232 Receiver Propagation Delay
CL = 150pF (Figure 11)
l
60
200
ns
tSKEWR232
Receiver Skew
CL = 150pF (Figure 11)
25
ns
tRR232, tFR232
Receiver Rise or Fall Time
CL = 150pF (Figure 11)
l
60
200
ns
tZLR232, tZHR232,
tLZR232, tHZR232
Receiver Output Enable or Disable Time
FEN = VL, RL = 1kΩ, CL = 150pF (Figure 12)
l
0.7
2
μs
Power Supply Generator
VDD/VEE Supply Rise Time
FEN =
, (Notes 3 and 4)
l
0.2
2
ms
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: All currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to device ground unless
otherwise specified.
Note 3: Guaranteed by other measured parameters and not tested directly.
Note 4: Time from FEN
until VDD ≥ 5V and VEE ≤ –5V. External
components as shown in the Typical Application section.
Note 5: Condition applies to A, B for H/F = 0V, and Y, Z for H/F = VL.
Note 6: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions.
Overtemperature protection activates at a junction temperature exceeding
150°C. Continuous operation above the specified maximum operating
junction temperature may result in device degradation or failure.
Note 7: Guaranteed by design and not subject to production test.
相关PDF资料 |
PDF描述 |
|---|---|
| GCM24DCCS-S189 | CONN EDGECARD 48POS R/A .156 SLD |
| 6278016-3 | CABLE ASSY SC-SC DUPLEX MM 3M |
| 5503995-2 | CABLE ASSEM FIBER ST-ST 2 METER |
| ECO-S1HA152BA | CAP ALUM 1500UF 50V 20% SNAP |
| EEU-FR1J821 | CAP ALUM 820UF 63V 20% RADIAL |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DC1788A-B | 制造商:Linear Technology 功能描述:EVAL BOARD, LT4275B POE & PD CONTROLLER, Silicon Manufacturer:Linear Technology, |
| DC1788A-C | 制造商:Linear Technology 功能描述:EVAL BOARD, LT4275C POE & PD CONTROLLER, Silicon Manufacturer:Linear Technology, |
| DC1788B-A | 制造商:Linear Technology 功能描述:EVAL BOARD FOR LT4275 90W 制造商:Linear Technology 功能描述:LT4275 POWERED DEVICE CTRL EVAL BOARD 制造商:Linear Technology 功能描述:DEMO BOARD, LT4275, POWER OVER ETHERNET CONTROLLER, Silicon Manufacturer:Linear |
| DC178A | 功能描述:BOARD SAR ADC LTC1418 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| DC1792 | 功能描述:BOARD DAC LTC2756 RoHS:是 类别:编程器，开发系统 >> 评估板 - 数模转换器 (DAC) 系列:QuikEval™, SoftSpan™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- DAC 的数量:4 位数:12 采样率（每秒）:- 数据接口:串行，SPI? 设置时间:3µs DAC 型:电流/电压 工作温度:-40°C ~ 85°C 已供物品:板 已用 IC / 零件:MAX5581 |
发布紧急采购，3分钟左右您将得到回复。