LMH0044_09 Datasheet, PDF (4/8 Pages) National Semiconductor (TI) – SMPTE 292M / 259M Adaptive Cable Equalizer

Connection Diagram
20177003
The exposed die attach pad is a negative electrical terminal for this device. It should be connected to the negative power supply voltage.
16-Pin LLP
Order Number LMH0044SQ
See NS Package Number SQB16A
Pin Descriptions
Pin #
1
2
3
4
5
6
7
8
Name
V_EE
SDI
SDI
V_EE
AEC+
AEC-
BYPASS
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
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.
www.national.com
4