TMDS442_14 Datasheet, PDF (19/46 Pages) Texas Instruments – 4-TO-2 DVI/HDMI SWITCH

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TMDS442
SLLS757A – AUGUST 2006 – REVISED MARCH 2007
TYPICAL CHARACTERISTICS (continued)
RESIDUAL PEAK-TO-PEAK JITTER
vs
DATA RATE
(AC Coupled Input: 3m Cable, Output: 1m Cable)
20
PRE = High, 800 mV_PP
18
16
14
PRE = High, 1200 mV_PP
12
10
8
6
See Figure 9 Jitter Test Circuit, V_CC = AV_CC = 3.3 V,
4 R_T = 50 W, R_VSADJ = 4.64 kW, T_A = 25°C, SA1 = SB1 = Low,
5V_PWR1 = High, SA2 = SB2 = High, 5V_PWR4 = High,
2
OE1 = OE2 = Low, I2CEN1 = I2CEN2 = High,
HDMI Data Pattern
0
750
1450
1650
1850
2250
Data Rate - Mbps
Figure 17.
RESIDUAL PEAK-TO-PEAK JITTER
vs
8-MIL FR4 TRACE OUTPUT
(DC Coupled Input: 5m Cable)
30
See Figure 9 Jitter Test Circuit, V_CC = AV_CC = 3.3 V,
28 ^RT ^{= 50 W, R}VSADJ ^{= 4.64 kW, T}A ^{= 25°C,}
SA1 = SB1 = Low, 5V_PWR1 = High,
26
SA2 = SB2 = High, 5V_WPR4 = High
OE1 = OE2 = Low, I2CEN1 = I2CEN2 = High,
1.65-Gbps HDMI Data Pattern,
24 ^{165-MHz pixel Clock,VID(PP) at TTP1,}
Source Jitter < 0.3UI
PRE = Low,
TTP1 1200 mV_PP
22
20
18
PRE = High,
16
TTP1 1200 mV_PP
PRE = Low,
14
TTP1 800 mV_PP
12
PRE = High,
10
TTP1 800 mV_PP
8
4
8
12
16
8-mil FR4 Trace Length - inch
Figure 19.
RESIDUAL PEAK-TO-PEAK JITTER
vs
DATA RATE
(AC Coupled Input: 3m Cable, Output: 0m Cable)
20
See Figure 9 Jitter Test Circuit, V_CC = AV_CC = 3.3 V,
18 RT = 50 W, RVSADJ = 4.64 kW, TA = 25°C, SA1 = SB1 = Low,
5V_PWR1 = High, SA2 = SB2 = High, 5V_PWR4 = High,
16 ^{OE1 = OE2 = Low, I2CEN1 = I2CEN2 = High,}
HDMI Data Pattern
14
12
PRE = High, 1200 mV_PP
10
PRE = Low, 1200 mV_PP
8
6
4
PRE = Low, 800 mV_PP
2
PRE = High, 800 mV_PP
0
750
1450 1650 1850
Data Rate - Mbps
Figure 18.
2250
RESIDUAL PEAK-TO-PEAK JITTER
vs
PEAK-TO-PEAK DIFFERENTIAL INPUT VOLTAGE
(at TTP1, DC Coupled: 5m Cable)
30
See Figure 9 Jitter Test Circuit, V_CC = AV_CC = 3.3 V, R_T = 50 W,
28
R_VSADJ = 4.64 kW, T_A = 25°C, SA1 = SB1 = Low ,
5V_PWR1 = High, SA2 = SB2 = High, 5V_PWR4 = High,
26
OE1 = OE2 = Low, I2CEN1 = I2CEN2 = High
165-Mhz Pixel Clock HDMI Data Pattern,
24
V_ID(PP) at TTP1, Source Jitter < 0.3 UI
22
Output:1m HDMI Cable, PRE = High
20
18
16
14
12
10
8
Output:0m HDMI Cable, PRE = Low
6
100 300 500 700 900 1100 1300 1500 1700
Peak-to-Peak Differential Input Voltage - mVp-p
Figure 20.
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