The MAX9276B/MAX9280B gigabit multimedia serial link
(GMSL) deserializers receive data from a GMSL serializer
over 50Ω coax or 100Ω shielded twisted-pair (STP) cable
and output deserialized data on the LVCMOS outputs.
The MAX9280B has HDCP content protection but otherwise
is the same as the MAX9276B. The deserializers pair
with any GMSL serializer capable of coax output including
the MAX9293 HDMI/MHL serializer. When programmed
for STP input they are backward compatible with any
GMSL serializer.
The audio channel supports L-PCM I2S stereo and up to
eight channels of L-PCM in TDM mode. Sample rates of
32kHz to 192kHz are supported with sample depth up to
32 bits.
The embedded control channel operates at 9.6kbps
to 1Mbps in UART-to-UART and UART-to-I2C modes,
and up to 1Mbps in I2C-to-I2C mode. Using the control
channel, a µC can program serializer, deserializer, and
peripheral device registers at any time, independent of
video timing, and manage HDCP operation (MAX9280B).
Two GPIO ports are included, allowing display powerup
and switching of the backlight among other uses. A
continuously sampled GPI input supports touch-screen
controller interrupt requests in display applications.
For use with longer cables, the deserializers have a
programmable cable equalizer. Programmable spread
spectrum is available on the parallel output. The serial
input meets ISO 10605 and IEC 61000-4-2 ESD
standards. The core supply is 3.0V to 3.6V and the I/O
supply is 1.7V to 3.6V.
The devices are in lead-free, 56-pin, 8mm x 8mm TQFN/SWTQFN packages with exposed pad and 0.5mm lead
pitch.
Applications
- High-Resolution Automotive Navigation
- Megapixel Camera Systems
- Rear-Seat Infotainment
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