TLK3101_16 Datasheet, PDF (16/28 Pages) Texas Instruments – 2.5 Gbps to 3.125 Gbps TRANSCEIVER

TLK3101
2.5 Gbps to 3.125 Gbps TRANSCEIVER
SCAS649B − AUGUST 2000 − REVISED JANUARY 2008
TTL input electrical characteristics over recommended operating free-air temperature range
(unless otherwise noted)
TTL signals: TXD0 ..TXD15, GTX_CLK, LOOPEN, LCKREFN, PRBS_PASS
PARAMETER
TEST CONDITIONS
V_IH
High-level input voltage
V_IL
Low-level input voltage
I_IH
Input high current
I_IL
Input low current
C_I
t_r
Rise time, GTX_CLK, TX_EN, TX_ER, TXD
t_f
Fall time, GTX_CLK, TX_EN, TX_ER, TXD
t_su
TXD, TX_EN, TX_ER setup to ↑ GTX_CLK
t_h
TXD, TX_EN, TX_ER hold to ↑ GTX_CLK
See Figure 10
See Figure 10
V_DD = MAX,
V_DD = MAX,
0.8 V to 2 V
0.8 V to 2 V, C = 5 pF,
2 V to 0.8 V, C = 5 pF,
See Figure 10
See Figure 10
V_IN = 2 V
V_IN = 0.4 V
See Figure 10
See Figure 10
MIN TYP MAX UNIT
1.7
3.6 V
0.80 V
40 µV
−40
µV
4 pF
1
ns
1
ns
1.5
ns
0.4
ns
GTX_CLK
t_r
TX_ER, TX_EN,
TXD(0−15)
t_f
t_su
t_h
t_f
t_r
3.6 V
2.0 V
0.8 V
0V
3.6 V
2.0 V
0.8 V
0V
Figure 10. TTL Data Input Valid Levels for AC Measurements
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