Datasheet

LMH0307
www.ti.com SNLS286I –APRIL 2008–REVISED APRIL 2013
PIN DESCRIPTIONS
WQFN Pin CS-BGA Ball Name Description
1 A1 SDI Serial data true input.
2 B1 SDI Serial data complement input.
4 D1, E1 R
REF
Bias resistor. Connect a 750Ω resistor to V
CC
(also connect D1 to E1 on CS-BGA
version).
5 D2 RSTI Reset input. RSTI has an internal pullup.
H = Normal operation.
L = Device reset. The device operates with default register settings. Forcing RSTI low
also forces RSTO low.
6 E2 ENABLE Output driver enable. ENABLE has an internal pullup.
H = Normal operation.
L = Output driver powered off.
7 E3 SDA SMBus bidirectional data pin. When functioning as an output, it is open drain. This pin
requires an external pullup.
8 E4 SCL SMBus clock input. SCL is input only. This pin requires an external pullup.
10 D5 SD/HD Output slew rate control. SD/HD has an internal pulldown.
H = Output rise/fall time complies with SMPTE 259M.
L = Output rise/fall time complies with SMPTE 424M / 292M.
11 C5 SDO0 Serial data output 0 complement output.
12 B5 SDO0 Serial data output 0 true output.
13 A5 FAULT Fault open drain output flag. Requires external pullup resistor and may be wire ORed
with multiple cable drivers.
H = Normal operation.
L = Loss of signal or termination fault for any output.
14 A4 SDO1 Serial data output 1 true output.
15 A3 SDO1 Serial data output 1 complement output.
16 A2 RSTO Reset output. RSTO is automatically set to 1 when register 0 is written. It can be reset
back to zero by forcing RSTI to zero to reset the device. Used to daisy chain multiple
cable drivers on the same SMBus.
9 D4 V
CC
Positive power supply (+3.3V).
DAP, 3 B2, B4, C1, V
EE
Negative power supply (ground).
C2, C3, C4
— B3, D3, E5 NC No connect.
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