LMH0303_13 Datasheet, PDF (5/19 Pages) Texas Instruments – 3 Gbps HD/SD SDI Cable Driver with Cable Detect

LMH0303
www.ti.com
SNLS285G – APRIL 2008 – REVISED APRIL 2013
AC Electrical Characteristics
Over Supply Voltage and Operating Temperature ranges, unless otherwise specified⁽¹⁾.
Symbol Parameter
Conditions
Reference
Min
DR_SDI
t_jit
Input Data Rate
Additive Jitter
2.97 Gbps
1.485 Gbps
SDI, SDI
SDO, SDO
270 Mbps
t_r,t_f
Output Rise Time, Fall Time SD/HD = 0, 20% – 80%,
SD/HD = 1, 20% – 80%
400
Mismatch in Rise/Fall Time
SD/HD = 0
SD/HD = 1
Duty Cycle Distortion
SD/HD = 0, 2.97 Gbps⁽²⁾
SD/HD = 0, 1.485 Gbps⁽²⁾
SD/HD = 1⁽²⁾
t_OS
Output Overshoot
SD/HD = 0⁽²⁾
SD/HD = 1⁽²⁾
RL_SDO Output Return Loss
5 MHz - 1.5 GHz⁽³⁾
15
1.5 GHz - 3.0 GHz⁽³⁾
10
SMBus AC Specifications
f_SMB
Bus Operating Frequency
10
t_BUF
Bus free time between Stop
and Start Condition
4.7
t_HD:STA Hold time after (repeated) Start At I_SPULLUP = MAX
Condition. After this period, the
4.0
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 period
4.7
t_HIGH
Clock high period
4.0
t_F
Clock/Data Fall Time
t_R
Clock/Data Rise Time
t_POR
Time in which device must be
operational after power on
Typ
Max
Units
2970
Mbps
20
ps_P-P
18
ps_P-P
15
ps_P-P
90
130
ps
800
ps
30
ps
50
ps
27
ps
30
ps
100
ps
10
%
8
%
dB
dB
100
kHz
µs
µs
µs
µs
ns
ns
µs
50
µs
300
ns
1000
ns
500
ms
(1) Typical values are stated for V_CC = +3.3V and T_A = +25°C.
(2) Specification is ensured by characterization.
(3) Output return loss is dependent on board design. The LMH0303 meets this specification on the SD303 evaluation board.
TIMING DIAGRAM
t_LOW
t_R
t_BUF
t_HD:STA
t_HD:DAT
t_HIGH
t_F
t_SU:STA
t_SU:DAT
SP
ST
ST
Figure 2. SMBus Timing Parameters
t_SU:STO
SP
SCL
SDA
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