MAX9278A Datasheet, PDF (1/75 Pages) Maxim Integrated Products – 3.12Gbps GMSL Deserializers

MAX9278A/MAX9282A
EVALUATION KIT AVAILABLE
3.12Gbps GMSL Deserializers
for Coax or STP Input and LVDS Output
General Description
The MAX9278A/MAX9282A 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 3 of 4 data-lane LVDS
outputs (oLDI).
The MAX9282A has HDCP content protection but other-
wise is the same as the MAX9278A. The deserializers pair
with any GMSL serializer capable of coax output. 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 (MAX9282A).
Two GPIO ports are included, allowing display power-
up 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 LVDS output. The serial input
and LVDS output meet 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, 48-pin, 7mm x 7mm TQFN
and QFND packages with exposed pad and 0.5mm lead
pitch.
Applications
● High-Resolution Automotive Navigation
● Rear-Seat Infotainment
● Megapixel Camera Systems
Simplified Diagram
oLDI VIDEO/
AUDIO
GMSL
µC
SERIALIZER
I²C
oLDI VIDEO/
AUDIO
MAX9278A/
MAX9282A
720p
DISPLAY
I²C
Benefits and Features
● Ideal for High-Definition Video Applications
• 104MHz High-Bandwidth Mode Supports
1920 x 720p/60Hz Display with 24-Bit Color
• Works with Low-Cost 50Ω Coax Cable and
FAKRA Connectors or 100Ω STP
• Equalization Allows 15m Cable at Full Speed
• Up to 192kHz Sample Rate and 32-Bit Sample
Depth for 7.1 Channel HD Audio
• Audio Clock from Audio Source or Audio Sink
• Color Lookup Table for Gamma Correction
• CNTL[3:0] Control Outputs
● Multiple Data Rates for System Flexibility
• Up to 3.12Gbps Serial-Bit Rate
• 6.25MHz to 104MHz Pixel Clock
• 9.6kbps to 1Mbps Control Channel in UART,
UART-to-UART, UART-to-I²C, or I²C-to-I²C
Modes with Clock-Stretch Capability
● Reduces EMI and Shielding Requirements
• Programmable Spread Spectrum Reduces EMI
• Tracks Spread Spectrum on Input
• High-Immunity Mode for Maximum Control-
Channel Noise Rejection
● Peripheral Features for System Power-Up and
Verification
• Built-In PRBS Tester for BER Testing of the
Serial Link
• Programmable Choice of Nine Default Device
Addresses
• Two Dedicated GPIO Ports
• Dedicated “Up/Down” GPI for Touch-Screen
Interrupt and Other Uses
• Remote/Local Wake-Up from Sleep Mode
● Meets Rigorous Automotive and Industrial
Requirements
• -40°C to +105°C Operating Temperature
• ±8kV Contact and ±15kV Air ISO 10605 and
IEC 61000-4-2 ESD Protection
Ordering Information appears at end of data sheet.
19-7780; Rev 0; 1/16