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ACS411CS 数据表(PDF) 39 Page - Semtech Corporation

部件名 ACS411CS
功能描述  Acapella Optical Modem IC
PDF  43 Pages
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制造商  SEMTECH [Semtech Corporation]
网页  http://www.semtech.com
标志 SEMTECH - Semtech Corporation

ACS411CS 数据表(HTML) 39 Page - Semtech Corporation

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39
ACS411CS PRE-RELEASE Issue 6.0 July 1999.
Pin Description of interface signals between ACS9020 and ACS4110.
Pin Description ACS9020 part 1.
Pin
Sym
IO
Name
Description
1
LEDRX
I
LED receive
Set Logic High or Low.
2PINRX
I
PINP/PINN
Receive
Set Logic High or Low.
3
4
XIN
XOUT
-
System Clock
Crystal
External crystal with 20pF
padding capacitor.
5
6
7
F0
F1
F2
I
Frequency set
PLL rate select.
8
PLLVDD
-
VDD for
VCO
Power supply, 4.75 - 5.25
Volts.
9
GND2
-
GND
Power supply.
10
RPLL
-
PLL reference
resistor
62K
Ω to GND
11
ENPLL
I
PLL Enable
Set Logic High or Low.
12
DINP
I
PLL Positive
input data
Connect to DOUTN.
13
DINN
I
PLL Negative
input data
Connect to DOUTP.
14
DOUTP
O
Receiver
Positive output
data
Connect to DINN (220
Ω to
GND if IDOUT floating).
15
DOUTN
O
Receiver
Negative
output data
Connect to DINP (220
Ω to
GND if IDOUT floating).
16
IDOUT
-
Reference
current for
Data output
1K
Ω to VDD (or float if using
external differential o/p loads).
17
ICOFF
-
Bias current
for automatic
offset
compensation
windowing
100K
Ω to RXVDD1 to give
COFFWIN delay of 60ns.
18
CBTSTRP
-
Auto offset
compensation
bootstrap
capacitor
10nF to GND to give 2ms
bootstrap delay (ICOFF =
100K
Ω).
19
COFFWIN
O
Auto output
generated
window output
Connect to ENCOFFB for auto
windowing.
20
ENCOFFB
I
Receiver offset
compensation
enable
Connect o COFFWIN for auto
windowing.
21
ENRXB
I
Receiver
enable
Set to Logic High or Low.
22
RXFLAG
O
Receiver signal
monitor flag
Use to drive external monitor
LED.
23
RXMON
-
Receiver signal
monitor
1M
Ω potentiometer to GND to
adjust RXFLAG threshold
.
24
RXGND
-
Ground
Power supply.
25
RXVDD1
-
Receive power
supply
Power supply, 4.75 - 5.25
Volts.
Pin
Sym
IO
Name
Description
132
61
ENTX
O
I
Enable
Transmit
Transmit active (ACS4110).
Enable transmit (ACS9020).
110
RXDATN
I
Receive data
Negative differential receive
data in (or slicing level in for
RXDATP).
109
RXDATP
I
Receive data
Positive receive data in.
107
TXDATN
O
Transmit data
Negative differential transmit
data in (or slicing level in for
TXDATP).
106
TXDATP
O
Transmit data
Positive transmit data out.



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