EVALUATION KIT AVAILABLE
MAX9273
22-Bit GMSL Serializer with Coax or
STP Cable Drive
General Description
Benefits and Features
S Ideal for Camera Applications
The MAX9273 compact serializer is designed to drive
50I coax or 100I shielded twisted-pair (STP) cable.
The device pairs with the MAX9272 deserializer. The
parallel input is programmable for single or double input.
Double input allows higher pixel clock input frequency by
registering two pixels of typical image-sensor video data
before serializing. This doubles the maximum pixel clock
frequency compared to single input.
ꢀDrives Low-Cost 50I Coax Cable and FAKRA
Connectors or 100I STP
ꢀError Detection/Correctionꢀ
ꢀꢀ9.6kbps to 1Mbps Control Channel in I2C-to-I2C
Mode with Clock Stretch Capability
ꢀBest-in-Class Supply Current: 75mA (max)
ꢀDouble-Rate Clock for Megapixel Cameras
ꢀSerializer Pre/Deemphasis Allows 15m Cable at
Full Speed
The device features an embedded control channel that
operates at 9.6kbps to 1Mbps in UART and mixed UART/
I2C modes, and up to 400kbps in I2C mode. Using the
control channel, a microcontroller (FC) is capable of
programming serializer, deserializer, and camera (or any
peripheral) registers at any time, independent of video
timing. There is one dedicated GPIO, four optional GPIOs,
and a GPO output, allowing remote power-up of a camera
module, camera frame synchronization, and other uses.
Error-detection and correction coding are programmable.
ꢀꢀ40-Pin (6mm x 6mm) TQFN Package with 0.5mm
Lead Pitch
S High-Speed Data Serialization for Megapixel
Cameras
Up to 1.5Gbps Serial-Bit Rate with Single or
Double Input: 6.25MHz to 100MHz Clock
S Multiple Control-Channel Modes for System
Flexibility
For driving longer cables, the serializer has program-
mable pre/deemphasis. Programmable spread spectrum
is available on the serial output. The serial output meets
ISO 10605 and IEC 61000-4-2 ESD standards. The core
supply range is 1.7V to 1.9V and the I/O supply range is
1.7V to 3.6V. The device is available in a 40-pin (6mm x
6mm) TQFN-EP package with 0.5mm lead pitch and oper-
ates over the -40NC to +105NC temperature range.
9.6kbps to 1Mbps Control Channel in UART-to-
UART or UART-to-I2C Modes
S Reduces EMI and Shielding Requirements
Output Programmable for 100mV to 500mV
Single-Ended or 100mV to 400mV Differential
Programmable Spread Spectrum on the Serial
Output Reduces EMI
Bypassable Input PLL for Parallel Clock Jitter
Attenuation
Applications
Tracks Spread Spectrum on Parallel Input
S Peripheral Features for Camera Power-Up and
Verification
Automotive Camera Systems
Navigation Displays
Built-In PRBS Generator for BER Testing of the
Serial Link
Up to Five GPIO Ports
Dedicated “Up/Down” GPO for Camera Frame
Sync Trigger and Other Uses
S Reduces Power Requirements
Remote/Local Wake-Up from Sleep Mode
Ordering Information appears at end of data sheet.
Typical Application Circuit appears at end of data sheet.
S Meets Rigorous Automotive and Industrial
Requirements
-40NC to +105NC Operating Temperature
±±kV Contact and ±15kV Air ISO 10605 and
IEC 61000-4-2 ESD Protection
For related parts and recommended products to use with this part,
refer to www.maximintegrated.com/MAX9273.related.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-6384; Rev 1; 11/12
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