MAX96751/MAX96753: HDMI to GMSL2 Serializers with HDCP Support

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"MAX96751_53.pdf" MAX96751F/MAX96753F是Maxim Integrated公司推出的串行器，主要用于将HDMI信号转换为单个或双通道GMSL2（Generic Media Signaling Link 2）串行协议。这两个器件旨在实现全双工、单线、双向传输视频和数据，能够在15米的电缆上进行高效通信。每个GMSL2链路在前向方向工作时，速率可固定在3Gbps或6Gbps，在反向方向则分别为187.5Mbps或1.5Gbps，总容量分别达到12Gbps前向和3Gbps反向（在独立链路模式下）。这些串行器支持的数据传输可以是通过低成本的50Ω同轴电缆或符合GMSL2通道规范的100Ω屏蔽双绞线。它们兼容HDMI的TMDS（Transition Minimized Differential Signaling）时钟，频率可高达160MHz，适用于单视频流；在双视图分屏模式下，可支持320MHz时钟。此外，它们能处理RGB888数据格式，提供丰富的色彩显示。 MAX96753F与MAX96751F的主要区别在于增加了HDCP（High-bandwidth Digital Content Protection）v1.4加密功能，内置安全密钥存储和HDCP认证及链路监控状态机，确保了内容传输的安全性。音频方面，MAX96751F/MAX96753F支持I2S立体声和最多8个通道的TDM（Time Division Multiplexing）模式。高清音频得到充分支持，能够处理每样本32位，采样率为192kHz的7.1声道传输，无论前向还是反向方向。 GMSL2并发控制通道允许设备同时处理视频和音频数据，以及侧信道和外围控制数据，增强了系统的灵活性和功能完整性。这种设计使得MAX96751F/MAX96753F成为远距离高清音视频传输的理想选择，尤其适用于需要高带宽、低延迟和高安全性的应用场合，如家庭娱乐系统、专业音频视频设备和汽车信息娱乐系统等。

Electrical Characteristics (continued)

((V

DD18

= 1.7V to 1.9V, V

DDD

= V

DDA

= 0.95V to 1.05V, V

DDIO

= 1.7V to 3.6V, V

DD33

= 3.14V to 3.47V, T

= −40°C to +105°C, EP

connected to PCB ground, typical values are at V

DD18

= V

DDIO

= 1.8V, V

DDD

= V

DDA

= 1.0V, V

DD33

= 3.3V, T

= +25°C, unless

otherwise noted.) (Note 1))

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Internal X2 Limit

Resistor

LIM

1.2 kΩ

Internal Feedback

Resistor

10 kΩ

Transconductance g

28 mA/V

DC ELECTRICAL CHARACTERISTICS / REFERENCE CLOCK REQUIREMENTS (EXTERNAL INPUT ON X1, X2

UNCONNECTED)

High-Level Input Voltage V

DDIO

= 1.7V to 3.6V 0.9 V

Low-Level Input Voltage V

DDIO

= 1.7V to 3.6 V 0.4 V

Input Impedance R

10 kΩ

X1 Input Capacitance C

IN_X1

5.5 pF

DC ELECTRICAL CHARACTERISTICS / POWER SUPPLY

DD33

at 3.47V TBD TBD

DDIO

at 1.9V TBD TBD

DDIO

at 3.6V TBD TBD

DD18

at 1.9V TBD TBD

DDD

at 1.05V TBD TBD

Dual 6Gbps links,

187.5Mbps

reverse, 148.5MHz

PCLK on each link,

color bar pattern

DDA

at 1.05V TBD TBD

DD33

at 3.47V TBD TBD

DDIO

at 1.9V TBD TBD

DDIO

at 3.6V TBD TBD

DD18

at 1.9V TBD TBD

DDD

at 1.05V TBD TBD

Supply Current (Note

19)

Single 6Gbps link,

187.5Mbps

reverse, 148.5MHz

PCLK, color bar

pattern

DDA

at 1.05V TBD TBD

DC ELECTRICAL CHARACTERISTICS / POWER-DOWN CURRENT

DD33

TBD TBD

DDIO

TBD TBD

DD18

TBD TBD

DDD

TBD TBD

Power-Down Current I

PWDNB = low

DDA

TBD TBD

μA

DC ELECTRICAL CHARACTERISTICS / SLEEP CURRENT

DD33

TBD TBD

DDIO

TBD TBD

DD18

TBD TBD

DDD

TBD TBD

Sleep Current I

SLEEP = 1

DDA

TBD TBD

μA

MAXIM INTEGRATED CONFIDENTIAL/DISTRIBUTE ONLY UNDER NDA

MAX96751F/MAX96753F GMSL2 Serializers with HDMI 2.0 Input

www.maximintegrated.com Maxim Integrated | 12

PRELIMINARY

Electrical Characteristics (continued)

((V

DD18

= 1.7V to 1.9V, V

DDD

= V

DDA

= 0.95V to 1.05V, V

DDIO

= 1.7V to 3.6V, V

DD33

= 3.14V to 3.47V, T

= −40°C to +105°C, EP

connected to PCB ground, typical values are at V

DD18

= V

DDIO

= 1.8V, V

DDD

= V

DDA

= 1.0V, V

DD33

= 3.3V, T

= +25°C, unless

otherwise noted.) (Note 1))

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

AC ELECTRICAL CHARACTERISTICS / FORWARD CHANNEL SWITCHING CHARACTERISTICS (Note 2)

Serial Output Rise Time t

20% to 80%, V

= 400mV, R

= 100Ω

±1%

50 70 ps

Serial Output Fall Time t

80% to 20%, V

= 400mV, R

= 100Ω

±1%

50 70 ps

Total Serial Output Jitter t

TSOJ2

PRBS7, single-ended or differential

output

0.25 UI (p-p)

Deterministic Serial

Output Jitter

DSOJ2

PRBS7, single-ended or differential

output

0.15 UI (p-p)

Lock Time t

LOCK

From power-up, one-shot reset, or rising

edge of PWDNB to rising edge of LOCK

25 ms

single-link mode 1.2

Maximum Video

Initialization Time

VIDEOSTART

Time from video

applied to input to

when the first video

packet appears at

GMSL2 outputs,

assuming link is

already

established;

dual-view splitter

mode

1.9

Single-link mode

120

PCLKs

Maximum Video Latency t

Time from TMDS

input to SIO±

output in GMSL2

packet

Dual-view splitter

mode

4120

PCLKs

PWDNB Hold Time t

HOLD_PWDNB

The minimum duration PWDNB must be

held low to reset the device

1 ms

AC ELECTRICAL CHARACTERISTICS / HDMI DIFFERENTIAL INPUT (Rx[2:0]±, RxC±) (Note 2) (Note 8)

Minimum Differential

Sensitivity

150 mV

P-P

Single video stream 160

Video Pixel Clock

Frequency

PCLK

Dual-view splitter mode 320

MHz

TMDS Clock-Jitter

Tolerance

JTMDS

Relative to ideal recovery clock 0.3 T

BIT

Intra-Pair Skew T

INTRA_SKEW

HDMI1.4, TMDS clock ≤ 222.75MHz 0.4 T

BIT

AC ELECTRICAL CHARACTERISTICS / I²C/UART PORT TIMING

I²C/UART Bit Rate 9.6 1000 kbps

Output Fall Time t

70% to 30%, C

= 10pF to 100pF, 1kΩ

pullup to V

DDIO

(Note 2)

20 x

DDIO

/5.

150 ns

I²C/UART Wake Time

From power-up or rising edge of PWDNB

to local register access; for remote

C/UART wake time is

the same as lock time (t

LOCK

) (Note 2)

TBD ms

MAXIM INTEGRATED CONFIDENTIAL/DISTRIBUTE ONLY UNDER NDA

MAX96751F/MAX96753F GMSL2 Serializers with HDMI 2.0 Input

www.maximintegrated.com Maxim Integrated | 13

PRELIMINARY

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