1FEATURES

2• 10 MHz to 43 MHz Input PCLK Support

• 210 Mbps to 903 Mbps Data Throughput

• Single Differential Pair Interconnect

• Bidirectional Control Interface Channel with

I2C Support

• Embedded Clock with DC Balanced Coding to

Support AC-Coupled Interconnects

• Capable to Drive up to 10 Meters Shielded

Twisted-Pair

• I2C Compatible Serial Interface

• Single Hardware Device Addressing Pin

• Up to 4 General Purpose Input (GPI)/ Output

(GPO)

• LOCK Output Reporting Pin and AT-SPEED

BIST Diagnosis Feature to Validate Link

Integrity

• Integrated Termination Resistors

• 1.8V- or 3.3V-Compatible Parallel Bus Interface

• Single Power Supply at 1.8V

• ISO 10605 ESD and IEC 61000-4-2 ESD

Compliant

• Automotive Grade Product: AEC-Q100 Grade 2

Qualified

• Temperature Range −40°C to +105°C

• No Reference Clock Required on Deserializer

• Programmable Receive Equalization

• EMI/EMC Mitigation

– DES Programmable Spread Spectrum

(SSCG) Outputs

– DES Receiver Staggered Outputs

APPLICATIONS

• Automotive Display Systems

– Central Information Displays

– Navigation Displays

– Rear Seat Entertainment

– Touch Screen Displays

DESCRIPTION

The DS90UB903Q/DS90UB904Q chipset offers a

FPD-Link III interface with a high-speed forward

channel and a bidirectional control channel for data

transmission over a single differential pair. The

DS90UB903Q/904Q incorporates differential

signaling on both the high-speed forward channel and

bidirectional control channel data paths. The

Serializer/ Deserializer pair is targeted for direct

connections between graphics host controller and

displays modules. This chipset is ideally suited for

driving video data to displays requiring 18-bit color

depth (RGB666 + HS, VS, and DE) along with

bidirectional control channel bus. The primary

transport converts 21 bit data over a single high-

speed serial stream, along with a separate low

latency bidirectional control channel transport that

accepts control information from an I2C port. Using

TI’s embedded clock technology allows transparent full-duplex communication over a single differential

pair, carrying asymmetrical bidirectional control

channel information in both directions. This single

serial stream simplifies transferring a wide data bus

over PCB traces and cable by eliminating the skew problems between parallel data and clock paths. This

significantly saves system cost by narrowing data

paths that in turn reduce PCB layers, cable width,

and connector size and pins.

In addition, the Deserializer inputs provide

equalization control to compensate for loss from the

media over longer distances. Internal DC balanced

encoding/decoding is used to support AC-Coupled

interconnects.

The Serializer is offered in a 40-pin lead in WQFN

and Deserializer is offered in a 48-pin WQFN

packages.