TLK1521 Datasheet, PDF (13/19 Pages) Texas Instruments – 500 Mbps to 1.3 Gbps TRANSCEIVER

transmitter/receiver characteristics
VOD(p)
VOD(pp−p)
VOD(d)
VOD(pp−d)
V(cmt)
VID
Vcmr
Iin
Cin
tr, tf
PARAMETER
VOD(p) = |VTXP-VTXN|,
Preemphasis VOD
Differential, peakĆto-peak output
voltage with preemphasis
VD(d) = |VTXP-VTXN|,
De-emphasis VOD
Differential, peak-to-peak output
voltage with deemphasis
Transmit termination voltage range,
(VTXP + VTXN)/2
Receiver input voltage differential
VID= |RXP – RXN|
Receiver common-mode voltage
range, (VRXP + VRXN)/2
Receiver input leakage
Receiver input capacitance
Differential output signal rise and
fall time (20% to 80%)
Serial transmit data total jitter
(peak-to-peak)
Receive jitter tolerance
Tlatency
TX latency
Rlatency
RX latency
TLK1521
500 Mbps to 1.3 Gbps TRANSCEIVER
SLLS591A− OCTOBER 2003 − REVISED JANUARY 2004
TEST CONDITION
DC-coupled. Preemphasis = high, See Figure 8
MIN TYP MAX UNIT
730 945 1280 mV
DC-coupled. Preemphasis = high, See Figure 8 1460 1890 2560 mV
DC-coupled. Preemphasis = low, See Figure 8
560 750 1100 mV
DC-coupled. Preemphasis = low, See Figure 8
1120 1500 2200 mV
1000 1250 1400 mV
RL = 50 Ω, CL = 5 pF, See Figure 9
Differential output jitter, random + deterministic,
223−1 PRBS pattern at 1.3 Gbps
Total input jitter, PRBS pattern, permitted eye
closure at zero crossing
At 500 Mbps
At 1.3 Gbps
At 500 Mbps
At 1.3 Gbps
VOD(p)
VOD(d)
200
mV
1000
−10
VDD−
350
mV
10 µA
2 pF
100 150
ps
0.1
UI
0.5
17
17
88
90
UI
19 _Bit
20 ^times
92 _Bit
96 ^times
V(cmt)
VOD(pp_d) VOD(pp_p)
tf
tr
VOD(d)
Bit
Bit
Time
Time
VOD(p)
Figure 8. Differential and Common-Mode Output Voltage Definitions
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