LMH0074 Datasheet, PDF (4/14 Pages) Intersil Corporation – SMPTE 259M / 344M Adaptive Cable Equalizer

LMH0074
SNLS277D – AUGUST 2007 – REVISED APRIL 2013
CONNECTION DIAGRAM
16 15 14 13
V_EE 1
SDI 2
SDI ³
V_EE 4
LMH0074
(top view)
56 78
12 V_EE
11 SDO
10 _SDO
9 V_EE
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Pin
Name
1
V_EE
2
SDI
3
SDI
4
V_EE
5
AEC+
6
AEC-
7
BYPASS
8
MUTE_REF
9
V_EE
10
SDO
11
SDO
12
V_EE
13
V_CC
14
MUTE
15
CD
16
V_CC
DAP
V_EE
Figure 1. 16-Pin WQFN Package
See Package Number RUM0016A
Pin Descriptions
Description
Negative power supply (ground).
Serial data true input.
Serial data complement input.
Negative power supply (ground).
AEC loop filter external capacitor (1µF) positive connection.
AEC loop filter external capacitor (1µF) negative connection.
Bypasses equalization and DC restoration when high. No equalization occurs in this mode.
Mute reference. Sets the threshold for CD and (with CD tied to MUTE) determines the maximum cable
to be equalized before muting. MUTE_REF may be unconnected for maximum equalization.
Negative power supply (ground).
Serial data complement output.
Serial data true output.
Negative power supply (ground).
Positive power supply (+3.3V).
Output mute. To disable the mute function and enable the output, MUTE must be tied to GND or a low
level signal. To force the outputs to a muted state, tie to V_CC. CD may be tied to this pin to inhibit the
output when no input signal is present. MUTE has no function in BYPASS mode.
Carrier detect. CD is high when no signal is present. CD has no function in BYPASS mode.
Positive power supply (+3.3V).
Connect exposed DAP to negative power supply.
4
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