PTN3361B

更新时间： 2024-11-13 09:58:31

品牌	Logo	应用领域
恩智浦 - NXP		转换器电平转换器
页数	文件大小	规格书
29页	146K
描述
HDMI/DVI level shifter with dongle detect support and active DDC buffer

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PTN3361B 数据手册

PTN3361B

HDMI/DVI level shifter with dongle detect support and active

DDC buffer

Rev. 02 — 7 October 2009

Product data sheet

1. General description

The PTN3361B is a high-speed level shifter device which converts four lanes of low-swing

AC-coupled differential input signals to DVI v1.0 and HDMI v1.3a compliant open-drain

current-steering differential output signals, up to 1.65 Gbit/s per lane. Each of these lanes

provides a level-shifting differential buffer to translate from low-swing AC-coupled

differential signaling on the source side, to TMDS-type DC-coupled differential

current-mode signaling terminated into 50 Ω to 3.3 V on the sink side. Additionally, the

PTN3361B provides a single-ended active buffer for voltage translation of the HPD signal

from 5 V on the sink side to 3.3 V on the source side and provides a channel with active

buffering and level shifting of the DDC channel (consisting of a clock and a data line)

between 3.3 V source-side and 5 V sink-side. The DDC channel is implemented using

active I²C-bus buffer technology providing capacitive isolation, redriving and level shifting

as well as disablement (isolation between source and sink) of the clock and data lines.

The low-swing AC-coupled differential input signals to the PTN3361B typically come from

a display source with multi-mode I/O, which supports multiple display standards, e.g.,

DisplayPort, HDMI and DVI. While the input differential signals are conﬁgured to carry DVI

or HDMI coded data, they do not comply with the electrical requirements of the DVI v1.0 or

HDMI v1.3a speciﬁcation. By using PTN3361B, chip set vendors are able to implement

such reconﬁgurable I/Os on multi-mode display source devices, allowing the support of

multiple display standards while keeping the number of chip set I/O pins low. See

Figure 1.

The PTN3361B main high-speed differential lanes feature low-swing self-biasing

differential inputs which are compliant to the electrical speciﬁcations of DisplayPort

Standard v1.1 and/or PCI Express Standard v1.1, and open-drain current-steering

differential outputs compliant to DVI v1.0 and HDMI v1.3a electrical speciﬁcations. The

I²C-bus channel actively buffers as well as level-translates the DDC signals for optimal

capacitive isolation. Its I²C-bus control block also provides for optional software HDMI

dongle detect by issuing a predetermined code sequence upon a read command to an

I²C-bus speciﬁed address. The PTN3361B also supports power-saving modes in order to

minimize current consumption when no display is active or connected.

The PTN3361B is a fully featured HDMI as well as DVI level shifter. It is functionally

comparable to PTN3360B but provides additional features supporting HDMI dongle

detection and active DDC buffering. For HDMI dongles, support of HDMI dongle detection

via the DDC channel is mandatory, hence HDMI dongle applications should enable this

feature for correct operation in accordance with DisplayPort interoperability guidelines.

PTN3361B is powered from a single 3.3 V power supply consuming a small amount of

power (90 mW typ.) and is offered in a 48-terminal HVQFN48 package.

12 3 4 5 6 7...29

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与PTN3361B相关器件

型号	品牌	获取价格	描述	数据表
PTN3361BBS	NXP	获取价格	HDMI/DVI level shifter with dongle detect support and active DDC buffer
PTN3361BBS,518	NXP	获取价格	PTN3361B - HDMI/DVI level shifter with dongle detect support and active DDC buffer QFN 48-
PTN3361CBS	NXP	获取价格	Enhanced performance HDMI/DVI level shifter with active DDC buffer, supporting 1.65 Gbit/s
PTN3361CBSMP	NXP	获取价格	PTN3361C - Enhanced performance HDMI/DVI level shifter with active DDCnbuffer, supporting
PTN3363BS	NXP	获取价格	Low power HDMI/DVI level shifter with active DDC buffer, supporting 3.4 Gbit/s operation
PTN3365BS	NXP	获取价格	SPECIALTY CONSUMER CIRCUIT
PTN3365BSMP	NXP	获取价格	PTN3365 - Enhanced performance HDMI/DVI level shifter with active DDC buffer, supporting 3
PTN3366BS	NXP	获取价格	Low power HDMI/DVI level shifter with active DDC buffer, supporting 3 Gbit/s o
PTN3366BSMP	NXP	获取价格	PTN3366BS - Low power HDMI/DVI level shifter with active DDC buffer, supporting 3 Gbit/snt
PTN3380BBS	NXP	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC48, 7 X 7 MM, 0.85 MM HEIGHT, PLASTIC, MO-220,

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