LMH0046MH Datasheet, PDF (13/20 Pages) Texas Instruments – LMH0046 HD/SD SDI Reclocker With Dual Differential Outputs

LMH0046
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APPLICATION INFORMATION
SNLS222F – APRIL 2006 – REVISED APRIL 2013
Figure 7 shows an application circuit for the LMH0046 along with the LMH0034 SMPTE 292M / 259M Adaptive
Cable Equalizer and LMH0002 SMPTE 292M / 259M Cable Driver.
V_CC
V_CC
RATE0
RATE1
56 nF
SCO_EN
Coaxial Cable
75:
10 nH
LMH0034 Adaptive
Cable Equalizer
1.0 PF
SDI SDO
1.0 PF
100:
SDI SDO
75:
37.4:
1
2 ^LF1
20
SCO_EN
19
3 ^LF2
SD/HD
18
4 ^RATE0
V_{CCO 17}
5 ^RATE1
SDO
16
6 ^{SDI LMH0046 SDO} 15
SDI
7
V_{CCO 14}
8 ^VCC
SCO/SDO2
13
BP/ AUTO-BP SCO/SDO2
9
12
10
OP MUTE
LOCK DET
XTAL IN/EXT CLK XTAL OUT
11
DAP
A
B
C
Additional
Outputs
1.0 PF
27 MHz
BP/ AUTO-BP
OP MUTE
39 pF
39 pF
LOCK DET
+3.3V
A
LMH0002
Cable Driver
75:
SD/HD
75:
5.6 nH
75:
4.7 PF ^{Coaxial Cable}
B
SDI
SDO
100:
SDO
C
SDI
75:
4.7 PF ^{Coaxial Cable}
75:
R_REF
75:
+3.3V
5.6 nH
750:
Figure 7. Application Circuit
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