S1R77081F Datasheet, PDF (1/2 Pages) Epson Company – RSDS Transmitter/Receiver

S1R77081F
RSDS Transmitter/Receiver
„ OVERVIEW
S1R77081F converts the image data that is output with low amplitude differential signal from an analog front end IC
equipped with CCD drive clock generation function (ex.S1R77021) to LVTTL level. By combining an analog front end IC
and S1R77081F, a scanner system that offers the high quality image and reduction of radiation noise can be achieved
easily.
„ FEATURES
• RSDS output 3ch
• RSDS input 9ch
• Adjustable output current by external resistance
• Differential input/output specification
Transfer rate: Max100Mbps/channel
Differential voltage output: 140mV (Min.), 200mV (Typ.), 280mV (Max.)
Output common mode voltage: 1.1V(Min.), 1.3V (Typ.), 1.5V (Max.)
Output current: 1.4mV(Min.), 2.0mA(Typ.), 2.8mA(Max.) (In the case that outside resistance is 13kΩ)
• LVTTL input/output level
• Package QFP48pin (0.5mm pitch)
• 3.3V single power supply
„ BLOCK DIAGRAM
VDD,RX_VDD,TX_VDD
VSS,RX_VSS,TX_VSS XRST REXT
Bias Generator
TSTEN
TX0I
TX1I
TX2I
RX0P
RX0N
RSDS
-TX
RSDS
-TX
RSDS
-TX
RSDS
-RX
Decoder
TX0P
TX0N
TX1P
TX1N
TX2P
TX2N
MODE
RX0O
RX8P
RX8N
RSDS
-RX
RX8O
„ APPLICATIONS
Scanner, MFP, Copy-machine, FAX etc.
SEIKO EPSON CORPORATION