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| 型号： | PTN3392BS/FX |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQCC48 |
| 封装： | 7 X 7 MM, 0.85 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, PLASTIC, MO-220, SOT619-1, HVQFN-48 |
| 文件页数： | 2/29页 |
| 文件大小： | 641K |
| 代理商： | PTN3392BS/FX |
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PTN3392
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 2 — 15 July 2010
10 of 29
NXP Semiconductors
PTN3392
2-lane DisplayPort to VGA adapter IC
7.3.2 I2C over AUX CH registers
7.3.2.1
I2C-bus speed control register (read only, 0000Ch)
Bit or bits are set to indicate I2C-bus speed control capabilities.
DisplayPort source reads register 0000Ch and sets the I2C-bus speed according to the
DPCD register 00109h setting. The PTN3392 then adapts its I2C-bus bit rate to the speed
set by the DisplayPort source.
7.3.2.2
I2C-bus speed control/status register (read/write, 00109h)
Bit values in this register are assigned to I2C-bus speeds.
Prior to software writing to this register, PTN3392 defaults to the I2C-bus speed (either
100 kbit/s or 10 kbit/s) selected by the S2 pin (Table 2).
On read, the PTN3392 returns a value set to indicate the speed currently in use.
On write, software provides a mask to limit the speeds to be enabled:
The PTN3392 uses the slowest speed enabled by the mask and the PTN3392 speed
capabilities.
If the result of the mask with the speed capabilities is 0000 0000b, then the PTN3392
keeps the S2 setting I2C-bus speed that it is using before the software write (i.e., no
change).
Some specific examples are listed below for clarification purposes:
If the source writes 1111 1111b, the PTN3392 uses the lowest speed of 1 kbit/s.
If the source writes 0000 1100b, the PTN3392 uses the lower of 10 kbit/s and
100 kbit/s, i.e., 10 kbit/s.
If the source writes 0011 0000b, the PTN3392 would stay using the same I2C-bus
speed that it is using before the software write (i.e., no change).
For DDC communication, the PTN3392 generates defer responses to the source while the
I2C-bus transfer is taking place as specified in the DisplayPort standard v1.1a. Note that
when the I2C-bus bit rate is set to 1 kbit/s, each bit takes 1 ms. One byte including
I2C_ACK takes 9 ms. Given this, the DisplayPort source should expect over
20 I2C_DEFER’s when requesting to read a byte over I2C-bus at the slowest rate.
7.4 Monitor detection
The PTN3392 assumes 75
Ω double termination, as shown in Figure 6. The load sensing
circuit of the PTN3392 senses a 37.5
Ω or 75 Ω termination respectively, when the
monitor is connected or disconnected. The load-sensing circuit is active during the vertical
blanking period (never during the horizontal retrace period), so that there will be no
disturbance to the screen image caused by the load-sensing circuit.
Upon detection of an RGB monitor being connected, the PTN3392 dynamically updates
DPCD register 00200h and 00204h, to indicate the presence of a sink device being
connected (see Section 7.3). After updating the DPCD register 00200h, the PTN3392
generates an IRQ request on HPD.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PTN3393BS/F1Y | 制造商:NXP Semiconductors 功能描述:PTN3393BS/HVQFN40/REEL13DP//F1 - Tape and Reel 制造商:NXP Semiconductors 功能描述:IC DISPLAYPORT TO VGA 40HVQFN |
| PTN3393BSY | 制造商:NXP Semiconductors 功能描述:PTN3393BS/HVQFN40/REEL13DP// - Tape and Reel 制造商:NXP Semiconductors 功能描述:IC DISPLAYPORT TO VGA 40HVQFN 制造商:NXP Semiconductors 功能描述:INTERFACE PRODUCTS |
| PTN3460BS,518 | 功能描述:接口 - 专用 PTN3460BS, HVQFN56, REEL13DP RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
| PTN3460BS/F1,518 | 功能描述:接口 - 专用 DisplayPort to LVDS bridge IC RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
| PTN3460BS/F2,518 | 功能描述:显示接口集成电路 PTN3460BS HVQFN56 REEL13DP F2 RoHS:否 制造商:Texas Instruments 电源电流:125 mA 工作温度范围:- 40 C to + 105 C 封装 / 箱体:WQFN-60 封装:Reel |
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