參數(shù)資料
型號(hào)： PIC18F87K90T-I/PTRSL
廠商： Microchip Technology
文件頁(yè)數(shù)： 110/110頁(yè)
文件大?。?/td> 0K
描述： MCU 8BIT 128K FLASH 80-TQFP
標(biāo)準(zhǔn)包裝： 1,200
系列： PIC® XLP™ 18F
核心處理器： PIC
芯體尺寸： 8-位
速度： 64MHz
連通性： I²C，LIN，SPI，UART/USART
外圍設(shè)備： 欠壓檢測(cè)/復(fù)位，LCD，POR，PWM，WDT
輸入/輸出數(shù)： 69
程序存儲(chǔ)器容量： 128KB（64K x 16）
程序存儲(chǔ)器類(lèi)型： 閃存
EEPROM 大小： 1K x 8
RAM 容量： 4K x 8
電壓 - 電源 (Vcc/Vdd)： 1.8 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 24x12b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 80-TQFP
包裝： 帶卷 (TR)
2010 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FSA3000 Rev. 1.0.5
9
FS
A3
0
00
—
Two
-Port,
High
-Spe
ed,
M
HL
Swi
tch
Insertion Loss
One of the key factors for the FSA3000 in mobile digital
video applications is the small amount of insertion loss
in the received signal as it passes through the switch.
This results in minimal degradation of the received eye.
One of the ways to measure the quality of the high data
rate channels is using balanced ports and 4-port
differential S-parameter analysis, particularly SDD21.
Bandwidth is measured using the S-parameter SDD21
methodology. Figure 15 shows the bandwidth (GHz) for
the MHL path and Figure 16 shows the bandwidth curve
for the USB path.
Figure 15. MHL (MDV) Path SDD21 Insertion
Loss Curve
Figure 16. USB Path SDD21 Insertion Loss Curve
Typical Application
Figure 17 shows a typical mobile application using the
FSA3000 for MHL switching. The FSA3157 is used for
OTG dual-role device implementations where the CBUS
of MHL and the ID pin for USB needs to be switched.
The 3M resistor for MHL_SEL is optional to ensure that
on power up the USB switch path is selected as default.
HDMI to MHL
Bridge
Baseband or
Application
Processor
USB_D+
USB_D-
CBUS
MHL+
MHL-
VBUS
D+
D-
ID
GND
MicroUSB
Connector
GND
FSA3000
VBAT
3M
MHL_SEL
D+
D-
Sel
/OE
Vcc
MHL+
MHL-
USB+
USB-
To USB Battery Charging Block
Enable
ID_USB
FSA3157
Figure 17. Typical Mobile MHL Application
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