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LMH0344SQE Datasheet(PDF) 6 Page - Texas Instruments

Part No. LMH0344SQE
Description  3 Gbps HD/SD SDI Adaptive Cable Equalizer
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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LMH0344SQE Datasheet(HTML) 6 Page - Texas Instruments

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AEC+
Equalizer
Filter
AEC-
MUTE
MUTEREF
DC
Restoration/
Level Control
Automatic
Equalization
Control
SDI
SDI
SDO
SDO
BYPASS
Output
Driver
6
Carrier
Detect/
Mute
Energy
Detect
Energy
Detect
CD
LMH0344
SNLS233L – APRIL 2007 – REVISED APRIL 2013
www.ti.com
PIN DESCRIPTIONS
WQFN Pin
CS-BGA Ball
Name
Description
2
C1
SDI
Serial data true input.
3
D1
SDI
Serial data complement input.
5
E2
AEC+
AEC loop filter external capacitor (1µF) positive connection.
6
E3
AEC-
AEC loop filter external capacitor (1µF) negative connection.
7
D3
BYPASS
Bypasses equalization and DC restoration when high. No equalization occurs in this
mode.
8
E4
MUTEREF
Mute reference. Sets the threshold for CD and (with CD tied to MUTE) determines the
maximum cable to be equalized before muting. MUTEREF may be either unconnected
or connected to ground for maximum equalization.
10
D5
SDO
Serial data complement output.
11
C5
SDO
Serial data true output.
14
B3
MUTE
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 VCC. CD may
be tied to this pin to inhibit the output when no input signal is present. MUTE has no
function in BYPASS mode.
15
A2
CD
Carrier detect. CD is high when no signal is present. CD has no function in BYPASS
mode.
13, 16
A1, A3, A4, B2 VCC
Positive power supply (+3.3V).
DAP, 1, 4, 9,
B1, B4, D2, E5 VEE
Negative power supply (ground).
12
A5, B5, C2,
NC
No connect.
C3, C4, D4, E1
BLOCK DIAGRAM
6
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Copyright © 2007–2013, Texas Instruments Incorporated
Product Folder Links: LMH0344


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