48SWTQFN-EP datasheet(27/103 Pages) MAXIM

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MAX9288/MAX9290

3.12Gbps GMSL Deserializers

for Coax or STP Input and MIPI CSI-2 Output

www.maximintegrated.com

Maxim Integrated │ 27

Detailed Description

The MAX9288/MAX9290 deserializers, when paired with

the MAX9275/MAX9277/MAX9279/MAX9281 serializ-

ers, provide the full set of operating features, but are

backward-compatible with the MAX9249–MAX9270 fam-

ily of gigabit multimedia serial link (GMSL) devices, and

have basic functionality when paired with any GMSL

device. The MAX9290 has high-bandwidth digital content

protection (HDCP), while the MAX9288 does not.

Each deserializer has a maximum serial-bit rate of

3.12Gbps for up to 15m of cable and operates up to a

maximum output clock of 104MHz in 24-bit mode and

27-bit high-bandwidth mode, or 78MHz in 32-bit mode.

This bit rate and output flexibility support a wide range

of displays, from QVGA (320 x 240) to 1920 x 720 and

higher with 24-bit color, as well as megapixel image sen-

sors. An encoded 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 from 8 to 32 bits. Input equalization, com-

bined with GMSL serializer pre/deemphasis, extends the

cable length and enhances link reliability.

The control channel enables a µC to program the serial-

izer and deserializer registers and program registers on

peripherals. The control channel is also used to perform

HDCP functions (MAX9290 only). The µC can be located

at either end of the link, or when using two µCs, at both

ends. Two modes of control-channel operation are avail-

able. Base mode uses either I2C or GMSL UART protocol,

while bypass mode uses a user-defined UART protocol.

UART protocol allows full-duplex communication, while

I2C allows half-duplex communication.

The serial input complies with ISO 10605 and IEC 61000-

4-2 ESD protection standards.

Registers set the operating conditions of the deserial-

izers and are programmed using the control channel

in base mode. The MAX9288/MAX9290 holds its own

device address and the device address of the serial-

izer it is paired with. Similarly, the serializer holds its

own device address and the address of the MAX9288/

MAX9290. Whenever a device address is changed, be

sure to write the new address to both devices. The default

device address of the deserializer is set by the ADD_ and

CX/TP inputs (Table 1). Registers 0x00 and 0x01 in both

devices hold the device addresses.

Figure 13. MIPI Output Timing Parameters

CLK+/-

DOUT_+/-

VIL(max)

VIH(min)

VIDTH(max)

CAPTURE 1ST DATA BIT

tLPTX

tHS-PREPARE

tHS-ZERO

tHS-SYNC

LP-11

LP-01

LP-00

tD-TERM-EN

tHS-SETTLE

LP-11

tHS-SKIP

tREOT

tEOT

tHS-TRAIL

tHS-EXIT

DISCONNECT TERMINATOR

VTERM-EN(max)

CLK+/-

VIL(max)

VIDTH(max)

tLPTX

tCLK-PREPARE

tCLK-ZERO

LP-11

LP-01

LP-00

TD-TERM-EN

tHS-SETTLE

VTERM-EN(max)

NOTE: THE CSI

CLOCK RUNS IN

CONTINUOUS

MODE ONLY.

48SWTQFN-EP Datasheet(PDF) 27 Page - Maxim Integrated Products

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