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参数资料
| 型号： | SN65LVDS302_07 |
| 厂商： | Texas Instruments, Inc. |
| 英文描述： | PROGRAMMABLE 27-BIT SERIAL-TO-PARALLEL RECEIVER |
| 中文描述： | 可编程27位串行到并行接收机 |
| 文件页数： | 33/41页 |
| 文件大小： | 1412K |
| 代理商： | SN65LVDS302_07 |
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APPLICATION INFORMATION
Preventing Increased Leakage Currents in Control Inputs
A floating (left open) CMOS input allows leakage currents to flow from V
DD
to GND. Do not leave any CMOS
input unconnected or floating. Every input must be connected to a valid logic level V
IH
or V
OL
while power is
supplied to V
DD
. This also minimizes the power consumption of standby and power down mode.
Power Supply Design Recommendation
For a multilayer PCB, it is recommended to keep one common GND layer underneath the device and connect all
ground terminals directly to this plane.
SN65LVDS302 DECOUPLING RECOMMENDATION
The SN65LVDS302 was designed to operate reliably in a constricted environment with other digital switching
ICs. In cell phone designs, the SN65LVDS302 often shares a power supply with various other ICs. The
SN65LVDS302 can operate with power supply noise as specified in Recommend Device Operating Conditions.
To minimize the power supply noise floor, provide good decoupling near the SN65LVDS302 power pins. The
use of four ceramic capacitors (two 0.01
μ
F and two 0.1
μ
F) provides good performance. At the very least, it is
recommended to install one 0.1
μ
F and one 0.01
μ
F capacitor near the SN65LVDS302. To avoid large current
loops and trace inductance, the trace length between decoupling capacitor and IC power inputs pins must be
minimized. Placing the capacitor underneath the SN65LVDS302 on the bottom of the PCB is often a good
choice.
VGA APPLICATION
Figure 40
shows a possible implementation of a standard 640x480 VGA display. The LVDS301 interfaces to the
SN65LVDS302, which is the corresponding receiver device to deserialize the data and drive the display driver.
The pixel clock rate of 22 MHz assumes ~10% blanking overhead and 60 Hz display refresh rate. The
application assumes 24-bit color resolution. Also shown is how the application processor provides a powerdown
(reset) signal for both serializer and the display driver. The signal count over the Flexible Printed Circuit board
(FPC) could be further decreased by using the standby option on the SN65LVDS302 and pulling RXEN high
with a 30 k
resistor to V
DD
.
S
R
22MHz
27
PCLK
R[7:0]
G[7:0]
B[7:0]
HS,VS,DE
D[7:0]
D[15:8]
D[23:16]
HS,VS,DE
Pixel CLK
V
G
2x0.01uF
2x0.1uF
L
L
T
1.8V
V
G
2x0.01uF
2x0.1uF
L
L
R
1.8V
D0+
D0-
CLK+
CLK-
D1+
D1-
D0+
D0-
CLK+
CLK-
D1+
D1-
GND
1.8V
2.7V
GND
1.8V
2.7 V
GND
GND
L
r
22MHz
27
PCLK
R[7:0]
G[7:0]
B[7:0]
HS,VS,DE
S
Serial port interface
(3-wire IF
)
3
Application
Processor
(e.g. OMAP)
SN65LVDS301
SN65LVDS302
Video Mode Display
Driver
FPC
22MHz
330Mbps
330Mbps
E
If FPC wire count is critical
connection with a pull
,
replace this
up resistor at RXEN
-
SN65LVDS302
SLLS733B–JUNE 2006–REVISED FEBRUARY 2007
Figure 40. Typical VGA Display Application
33
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SN65LVDS302ZQE | 功能描述:串行器/解串器 - Serdes Program 27B Display Ser Interface RoHS:否 制造商:Texas Instruments 类型:Deserializer 数据速率:1.485 Gbit/s 输入类型:ECL/LVDS 输出类型:LVCMOS 输入端数量:1 输出端数量:20 工作电源电压:2.375 V to 2.625 V 工作温度范围:0 C to + 70 C 封装 / 箱体:TQFP-64 |
| SN65LVDS302ZQER | 功能描述:串行器/解串器 - Serdes Programmable 27B Displ Ser Interface RoHS:否 制造商:Texas Instruments 类型:Deserializer 数据速率:1.485 Gbit/s 输入类型:ECL/LVDS 输出类型:LVCMOS 输入端数量:1 输出端数量:20 工作电源电压:2.375 V to 2.625 V 工作温度范围:0 C to + 70 C 封装 / 箱体:TQFP-64 |
| SN65LVDS303ZQE | 功能描述:IC PROG 27BIT SERDES TX 80-BGA RoHS:否 类别:集成电路 (IC) >> 接口 - 串行器，解串行器 系列:65LVDS 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 功能:解串器 数据速率:2.5Gbps 输入类型:串行 输出类型:并联 输入数:- 输出数:24 电源电压:1.8 V ~ 3.3 V 工作温度:-40°C ~ 105°C 安装类型:表面贴装 封装/外壳:64-TQFP 裸露焊盘 供应商设备封装:64-TQFP-EP（10x10） 包装:管件 |
| SN65LVDS303ZQER | 功能描述:串行器/解串器 - Serdes QVGA-VGA 27B Display Serial Interface RoHS:否 制造商:Texas Instruments 类型:Deserializer 数据速率:1.485 Gbit/s 输入类型:ECL/LVDS 输出类型:LVCMOS 输入端数量:1 输出端数量:20 工作电源电压:2.375 V to 2.625 V 工作温度范围:0 C to + 70 C 封装 / 箱体:TQFP-64 |
| SN65LVDS304ZQER | 功能描述:串行器/解串器 - Serdes QVGAVGA 27B Display Ser Interface RoHS:否 制造商:Texas Instruments 类型:Deserializer 数据速率:1.485 Gbit/s 输入类型:ECL/LVDS 输出类型:LVCMOS 输入端数量:1 输出端数量:20 工作电源电压:2.375 V to 2.625 V 工作温度范围:0 C to + 70 C 封装 / 箱体:TQFP-64 |
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