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DS92LV2421_11 Datasheet, PDF (12/40 Pages) National Semiconductor (TI) – 10 to 75 MHz, 24-bit Channel Link II Serializer and Deserializer
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Recommended Serializer Timing for CLKIN Requirements
Over recommended operating supply and temperature ranges unless otherwise specified.
Symbol
Parameter
Conditions
Min Typ Max Units
tTCP
tTCIH
Transmit Input CLKIN Period
Transmit Input CLKIN High
Time
10 MHz to 75 MHz, Figure 4
13.3
T
100
ns
0.4T 0.5T 0.6T ns
tTCIL
tCLKT
SSCIN
Transmit Input CLKIN Low Time
CLKIN Input Transition Time
CLKIN Input – Spread
Spectrum at 75 MHz
fmod
fdev
0.4T 0.5T 0.6T ns
0.5
2.4
ns
35
kHz
±2
%
Serializer Switching Characteristics
Over recommended operating supply and temperature ranges unless otherwise specified.
Symbol
Parameter
Conditions
tLHT
Ser Output Low-to-High
Transition Time, Figure 3
RL = 100Ω, De-emphasis = disabled,
VODSEL = 0
RL = 100Ω, De-emphasis = disabled,
VODSEL = 1
tHLT
Ser Output High-to-Low
Transition Time, Figure 3
RL = 100Ω, De-emphasis = disabled,
VODSEL = 0
RL = 100Ω, De-emphasis = disabled,
VODSEL = 1
tDIS
Input Data - Setup Time,
Figure 4
DI[23:0], CI1, CI2, CI3 to CLKIN
tDIH
Input Data - Hold Time,
Figure 4
CLKIN to DI[23:0], CI1, CI2, CI3
tXZD
Ser Ouput Active to OFF Delay,
Figure 6
tPLD
Serializer PLL Lock Time,
Figure 5
RL = 100Ω
tSD
Serializer Delay - Latency,
RL = 100Ω
Figure 7
tDJIT
Ser Output Total Jitter,
Figure 8
RL = 100Ω, De-Emph = disabled,
RANDOM pattern, CLKIN = 75MHz
RL = 100Ω, De-Emph = disabled,
RANDOM pattern, CLKIN = 43MHz
RL = 100Ω, De-Emph = disabled,
RANDOM pattern, CLKIN = 10MHz
λSTXBW Serializer Jitter Transfer
Function -3 dB Bandwidth
RL = 100Ω, De-Emph = disabled,
RANDOM pattern, CLKIN = 75MHz
RL = 100Ω, De-Emph = disabled,
RANDOM pattern, CLKIN = 43MHz
RL = 100Ω, De-Emph = disabled,
RANDOM pattern, CLKIN = 10MHz
δSTX
Serializer Jitter Transfer
Function Peaking
RL = 100Ω, De-Emph = disabled,
RANDOM pattern, CLKIN = 75MHz
RL = 100Ω, De-Emph = disabled,
RANDOM pattern, CLKIN = 43MHz
RL = 100Ω, De-Emph = disabled,
RANDOM pattern, CLKIN = 10MHz
Min Typ Max Units
200
ps
200
ps
200
ps
200
ps
2
ns
2
ns
8
15
ns
1.4
10
ms
144*T 145*T ns
0.28
UI
0.27
UI
0.35
UI
3.3
MHz
2.3
MHz
0.8
MHz
0.86
dB
0.83
dB
0.28
dB
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