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CXB1577R
VCC = 5V
VEE = GND
Q
VTT = 3V
Ta = 27°C
D = 1.25Gbps
Vin = 10mVp-p
Single input
pattern: PRBS223-1
Q/QB = 50Ω to VTT
QB
Ch. 1 = 400mV/div OFFSET = –1330mV, Ch. 2 = 400mV/div OFFSET = –1330mV, Timebase = 200ps/div
2. Bit error rate
Fig. 10
Bit error rate vs. Data input level
10 –3
10 –4
622Mbps
1.0Gbps
1.25Gbps
10 –5
10 –6
10 –7
10 –8
VCC = 5V
VEE = GND
VTT = 3V
Ta = 27°C
Single input
pattern: PRBS223-1
Q/QB = 50Ω to VTT
10 –9
10 –10
1
1.5
3. Alarm level
9
8
Alarm level vs. REX1
SW = H
SW = L
2
2.5
3
Data input level [mVp-p]
Fig. 11
Alarm level vs. Temperature
6.0
SW = H
5.5
SW = L
7
6
5
4
3
2
102
fin = 100Mbps
VCC – VEE = 5V
Ta = 27°C
Differential input
103
104
UP-DOWN (REX1) [Ω]
Fig. 12
5.0
4.5
4.0
3.5
3.0
2.5
2.0
–40 –20
fin = 100Mbps
VCC – VEE = 5V
Up-Down = 200Ω (REX1)
0 20 40 60 80 100
Ta [°C]
Fig. 13
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