參數(shù)資料
型號(hào)： GT3200
廠商： SMSC Corporation
英文描述： USB2.0 PJY IC
中文描述： USB2.0接口PJY集成電路
文件頁(yè)數(shù)： 31/51頁(yè)
文件大?。?/td> 1462K
代理商： GT3200
USB2.0 PHY IC
SMSC GT3200, SMSC USB3250
26
Revision 1.3 (10-05-04)
DATASHEET
7.6
FS/HS RX
The receivers connect directly to the USB cable. The block contains a separate differential receiver
for HS and FS mode. Depending on the mode, the selected receiver provides the serial data stream
through the mulitplexer to the RX Logic block. The FS mode section of the FS/HS RX block also
consists of a single-ended receiver on each of the data lines to determine the correct FS LINESTATE.
For HS mode support, the FS/HS RX block contains a squelch circuit to insure that noise is never
interpreted as data.
7.7
FS/HS TX
The transmitters connect directly to the USB cable. The block contains a separate differential FS and
HS transmitter which receive encoded, bitstuffed, serialized data from the TX Logic block and transmit
it on the USB cable. The FS/HS TX block also contains circuitry that either enables or disables the
pull-up resistor on the D+ line.
7.8
Biasing
This block consists of an internal bandgap reference circuit used for generating the driver current and
the biasing of the analog circuits. This block requires an external precision resistor (12k
+/- 1% from
the RBIAS pin to analog ground).
7.9
Power Control
This is the block that receives and distributes all the power for the transceiver. This block is also
responsible for handling ESD protection.
Figure 7.12 Receive Timing for Data Packet with CRC-16 (8-bit mode)
SYNC
EOP
PID
DATA
CRC-16 Computation
CRC
CRC
CLK60
RXACTIVE
RXDATA[7:0]
RXVALID
RXERROR
DP/DM
DATA
DATA
DATA
PID
DATA
CRC
CRC
DATA
DATA
DATA
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
GT3200_06 制造商:SMSC 制造商全稱:SMSC 功能描述:USB2.0 PHY IC
GT3200-ABZJ 制造商:SMSC 制造商全稱:SMSC 功能描述:USB2.0 PJY IC
GT3200-JD 制造商:Rochester Electronics LLC 功能描述:GAIN TECHNOLOGY - Bulk
GT3200-JN 制造商:SMSC 制造商全稱:SMSC 功能描述:USB2.0 PJY IC
GT3200-JV 制造商:Microchip Technology 功能描述:PHY 1-CH 12Mbps/480Mbps
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