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参数资料
型号： LTC2864HDD-1#PBF
厂商： Linear Technology
文件页数： 23/26页
文件大小： 0K
描述： IC TRANSCEIVER RS485 10-DFN
标准包装： 121
类型： 收发器
驱动器/接收器数： 1/1
规程： RS422，RS485
电源电压： 3 V ~ 5.5 V
安装类型： 表面贴装
封装/外壳： 10-WFDFN 裸露焊盘
供应商设备封装： 10-DFN（3x3）
包装： 管件
LTC2862/LTC2863/
LTC2864/LTC2865
6
2862345fc
For more information www.linear.com/LTC2862
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Driver – High Speed (LTC2862-1, LTC2863-1, LTC2864-1, LTC2865 with SLO High)
fMAX
Maximum Data Rate
(Note 3)
l
20
Mbps
tPLHD, tPHLD
Driver Input to Output
RDIFF = 54Ω, CL = 100pF (Figure 4)
l
25
50
ns
ΔtPD
Driver Input to Output Difference
|tPLHD – tPHLD|
RDIFF = 54Ω, CL = 100pF (Figure 4)
l
2
9
ns
tSKEWD
Driver Output Y to Output Z
RDIFF = 54Ω, CL = 100pF (Figure 4)
l
±10
ns
tRD, tFD
Driver Rise or Fall Time
RDIFF = 54Ω, CL = 100pF (Figure 4)
l
4
15
ns
tZLD, tZHD,
tLZD, tHZD
Driver Enable or Disable Time
RL = 500Ω, CL = 50pF, RE = 0V
(Figure 5)
l
180
ns
tZHSD, tZLSD
Driver Enable from Shutdown
RL =500Ω, CL = 50pF, RE = High
(Figure 5)
l
9
s
tSHDND
Time to Shutdown
RL = 500Ω, CL = 50pF, RE = High
(Figure 5)
l
180
ns
Driver – Slew Rate Limited ( LTC2862-2, LTC2863-2, LTC2864-2, LTC2865 with SLO Low)
fMAX
Maximum Data Rate
(Note 3)
l
250
kbps
tPLHD, tPHLD
Driver Input to Output
RDIFF = 54Ω, CL = 100pF (Figure 4)
l
850
1500
ns
ΔtPD
Driver Input to Output Difference
|tPLHD – tPHLD|
RDIFF = 54Ω, CL = 100pF (Figure 4)
l
50
500
ns
tSKEWD
Driver Output Y to Output Z
RDIFF = 54Ω, CL = 100pF (Figure 4)
l
±500
ns
tRD, tFD
Driver Rise or Fall Time
RDIFF = 54Ω, CL =100pF (Figure 4)
l
500
800
1200
ns
tZLD, tZHD
Driver Enable Time
RL = 500Ω, CL = 50pF, RE = 0V
(Figure 5)
l
1200
ns
tLZD, tHZD
Driver Disable Time
RL = 500Ω, CL = 50pF, RE = 0V
(Figure 5)
l
180
ns
tZHSD, tZLSD
Driver Enable from Shutdown
RL = 500Ω, CL = 50pF, RE = High
(Figure 5)
l
10
s
tSHDND
Time to Shutdown
RL =500Ω, CL = 50pF, RE = High
(Figure 5)
l
180
ns
Receiver
tPLHR, tPHLR
Receiver Input to Output
CL = 15pF, VCM = 1.5V, |VAB| = 1.5V,
tR and tF < 4ns (Figure 6)
l
50
65
ns
tSKEWR
Differential Receiver Skew
|tPLHR – tPHLR|
CL = 15pF (Figure 6)
2
9
ns
tRR, tFR
Receiver Output Rise or Fall Time
CL = 15pF (Figure 6)
l
3
12.5
ns
tZLR, tZHR,
tLZR, tHZR
Receiver Enable/Disable Time
RL = 1k, CL = 15pF, DE = High (Figure 7) l
40
ns
tZHSR, tZLSR
Receiver Enable from Shutdown
RL = 1k, CL = 15pF, DE = 0V, (Figure 7) l
9
s
tSHDNR
Time to Shutdown
RL = 1k, CL = 15pF, DE = 0V, (Figure 7) l
100
ns
swiTchinG 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 unless otherwise noted. (Note 2)
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. Maximum data rate is guaranteed by other measured parameters
and is not tested directly.
Note 4. This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 150C when overtemperature protection is active.
Continuous operation above the specified maximum operating temperature
may result in device degradation or failure.
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