LMH0384 Datasheet, PDF (19/29 Pages) National Semiconductor (TI) – 3 Gbps HD/SD SDI Extended Reach and Configurable Adaptive Cable Equalizer

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Typical Application (continued)
(SPI) MISO
(SPI) SCK
(SPI) MOSI
LMH0384
SNLS308G – APRIL 2009 – REVISED JUNE 2015
VCC
0.1 PF
VCC
0.1 PF
Coaxial Cable
75:
5.6 nH
75:
1.0 PF
1.0 PF
37.4:
VCC
1 _VEE
2
SDI
3
SDI
4 _{SPI_EN}
LMH0384
12
MISO
11
SDO
10
SDO
9
SS
Differential
Output
DAP
Coaxial Cable
75:
5.6 nH
75:
CD
MUTEREF
(SPI) SS
1.0 PF
Figure 11. Application Circuit (SPI Mode)
1.0 PF
1.0 PF
37.4:
LMH0384 3G SDI
Adaptive Cable
Equalizer
SDI
SDO
SDI
SDO
MUTE
MUTE_REF
BYPASS CD
AUTO SLEEP
SPI_EN
LMH0341 3G SDI
Deserializer
RXIN0 TXOUT
RXIN0 TXOUT
Reclocked
Loopthrough
RX[4:0]
RXCLK
5-bit LVDS
+ clk
To FPGA
MUTE
MUTE_REF
BYPASS
AUTO SLEEP
CD
1.0 PF
Figure 12. Typical Application (Pin Mode)
8.2.1 Design Requirements
Table 2 lists the design parameters for the LMH0384.
DESIGN PARAMETER
Input AC-coupling capacitors
Table 2. LMH0384 Design Parameters
REQUIREMENT
Required. A common type of AC-coupling capacitor is 1 µF ±10% X7R ceramic
capacitor (0402 or 0201 size). Capacitors may be implemented on the PCB or in the
connector.
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