Datasheet
AEC+
Equalizer
Filter
AEC-
MUTE
MUTE
REF
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 MUTE
REF
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 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 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.
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 V
CC
Positive power supply (+3.3V).
DAP, 1, 4, 9, B1, B4, D2, E5 V
EE
Negative power supply (ground).
12
— A5, B5, C2, NC No connect.
C3, C4, D4, E1
BLOCK DIAGRAM
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