LMH0340SQE Datasheet, PDF (7/30 Pages) Texas Instruments – 3 Gbps, HD, SD, DVB-ASI SDI Serializer and Cable Driver With LVDS Interface

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LMH0040, LMH0050
LMH0070, LMH0340
SNLS271I – APRIL 2007 – REVISED APRIL 2013
SMBus Switching Characteristics
Over supply and Operating Temperature ranges unless otherwise specified. ⁽¹⁾
Symbol
Parameter
Condition
Min
f_SMB
Bus Operating Frequency
10
t_BUF
Bus free time between stop and start
4.7
condition
t_HD:STA
Hold time after (repeated) start
At I_SPULLUP = MAX
4.0
condition. After this period, the first
clock is generated
t_SU:STA
Repeated Start condition setup time
4.7
t_SU:STO
Stop Condition setup time
4.0
t_HD:DAT
Data hold time
300
t_SU:DAT
Data setup time
250
t_LOW
Clock Low Time
4.7
t_HIGH
Clock High Time
4.0
t_F
Clock/data fall time
20% to 80%
t_R
Clock/data rise time
t_SU:CS
SMB_CS setup time
t_POR
Time in which a device must be
operational after power on
Typ
Max
Units
100
kHz
μs
μs
μs
μs
ns
ns
μs
50
μs
300
ns
1000
ns
30
ns
500
ms
(1) Typical Parameters measured at V_DD3V3=3.3V, V_DD2V5=2.5V, T_A=25°C. They are for reference purposes and are not production tested.
t_SU:CS
t_LOW
t_R
t_BUF
t_HD:STA
t_HD:DAT
t_HIGH
t_F
t_SU:DAT
t_SU:STA
t_SU:STO
SP
ST
ST
SP
NOTE: (levels are V_SIL and V_SIH)
Figure 4. SMBus Timing Parameters
SMB_CS
SCK
SDA
SDI Output Characteristics — LMH0340 / LMH0040 / LMH0070
Over supply and Operating Temperature ranges unless otherwise specified. ⁽¹⁾
Symbol
Parameter
Condition
Min
V_OD
SDI Output Voltage
into 75Ω load
720
DR
SDI Output Datarate
LMH0340
270
LMH0040
270
LMH0070
t_r
SDI Output Rise Time
2.97 Gbps
1.485 Gbps
<1.485 Gbps
400
t_f
SDI Output Fall Time
2.97 Gbps
1.485 Gbps
<1.485 Gbps
400
Typ
Max
Units
800
880
mV
2,970
Mbps
1,485
Mbps
270
Mbps
90
135
ps
90
220
ps
700
1000
ps
90
135
ps
90
220
ps
700
1000
ps
(1) Typical Parameters measured at V_DD3V3=3.3V, V_DD2V5=2.5V, T_A=25°C. They are for reference purposes and are not production tested.
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