MAX9275 データシートの表示（PDF） - Maxim Integrated

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MAX9275

3.12Gbps GMSL Serializers for Coax or STP Output Drive and Parallel Input

Maxim Integrated 

MAX9275/MAX9279

EVALUATION KIT AVAILABLE

3.12Gbps GMSL Serializers for Coax or

STP Output Drive and Parallel Input

General Description

The MAX9275/MAX9279 are 3.12Gbps Gigabit Multimedia

Serial Link (GMSL) serializers with parallel LVCMOS

inputs and a CML serial output programmable for 50Ω

coax or 100Ω shielded twisted pair (STP) cable drive.

The MAX9279 has HDCP content protection but other-

wise is the same as the MAX9275. The serializers pair

with any GMSL deserializer capable of coax input. When

programmed for STP output they are backward compat-

ible with any GMSL deserializer. The output amplitude is

programmable 100mV to 500mV, single-ended (coax) or

100mV to 400mV differential (STP).

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-UART and UART-I2C modes, and up

to 1Mbps in I2C-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 (MAX9279). A GPO output

supports touch-screen controller interrupt requests from

the remote end of the link.

For use with longer cables, the serializers have 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 is 1.7V to 1.9V and the I/O supply is 1.7V to 3.6V.

The MAX9275/MAX9279 are available in a lead-free,

56-pin, 8mm x 8mm, TQFN package with exposed pad

and 0.5mm lead pitch.

Applications

● High-Resolution Automotive Navigation

● Rear-Seat Infotainment

● Megapixel Camera Systems

Benefits and Features

● Ideal for High-Definition Video Applications

• Drives Low-Cost 50Ω Coax Cable and FAKRA

Connectors or 100Ω STP

• 104MHz High-Bandwidth Mode Supports

1920x720p/60Hz Display With 24-Bit Color

• Serializer Pre/Deemphasis Allows 15m Cable at

Full Speed

• Up to 192kHz Sample Rate And 32-Bit Sample

Depth For 7.1 Channel HD Audio

● 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, Mixed

UART/I2C, or I2C Mode with Clock Stretch

Capability

● Reduces EMI and Shielding Requirements

• Serial Output Programmable for 100mV to 500mv

Single-Ended or 100mV to 400mV Differential

• Programmable Spread Spectrum Reduces EMI

• Bypassable Input PLL for Parallel Clock Jitter

Attenuation

• 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 Generator for BER Testing of the

Serial Link

• Dedicated “Up/Down” GPO 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.

19-6751; Rev 3; 12/17

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