ACS411CS View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
ACS411CS Datasheet PDF : 43 Pages
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Pin Description ACS9020 part 2.
Pin
Sym IO
Name
Description
26
RXVDD2
-
Pre-amp
power supply
Power supply, 4.75 - 5.25
Volts.
Post amp
27
COFFP - offset
capacitor
1nF to COFFN.
Post amp
28 COFFN - offset
capacitor
1nF to COFFP.
29
CAGC
-
Preamp AGC
capacitor
10nF to GND.
30
COFFSET
-
Preamp offset
capacitor
10nF to GND.
Receiver
31
RSET
- current bias
10nF to GND.
resistor
32
VREF
-
Bandgap
reference
10nF to GND.
33
VN
-
Postamp
negative input
Negative output from external
TIA.
34
VP
-
Postamp
positive input
Positive output from external
TIA.
35
PINN
-
Receiver PIN
cathode
Laser/LED PIN cathode.
36
PINP
-
Receiver PIN
anode
Laser/LED PIN anode.
37
PMN
-
Monitor PIN
anode
Laser monitor PIN anode.
38
MONN
-
Monitor PIN
cathode
Laser monitor PIN cathode.
39
TXVDD
-
Power Supply
Power supply, 4.75 - 5.25
Volts.
40
41
LAP
LAN
-
Anode
Cathode
Laser/LED anode.
Laser/LED cathode.
42 TXGND - Ground
Power supply.
43
CTXMOD
-
Laser/LED
modulation
44
CTXBIAS
-
Laser/LED
bias
45
RMODSET
-
Laser/LED
modulation
46
RBIASSET
-
Laser/LED
bias
47
BIASFIX
I
Laser/LED
bias fix
Laser/LED
48 MODFIX I modulation
current fix
Laser/LED modulation current
set smoothing capacitor 10nF to
GND.
Laser/LED bias current set
smoothing capacitor 10nF to
GND.
Laser/LED modulation current
set resistor 50KΩ
potentiometer to GND.
Laser/LED bias current set
resistor 50KΩ potentiometer to
GND.
Set Logic High or Low.
Set Logic High or Low.
Pin Description ACS9020 part 3.
Pin
Sym IO
Name
Description
49
TXP
I
Data transmit
positive
Positive output of TX data
source.
50
TXN
I
Data transmit
negative
Negative output of TX data
source.
Transmit
51 TXFLAG O current
monitor flag
Used to drive external indicator
LED.
Transmit
52 TXMON - monitor
current
10KΩ potentiometer to GND
to adjust TXFLAG threshold.
53
IBUF
-
Current
reference for
SDATA and
SCLK drivers
470Ω resistor to VDD (or float
if using external differential o/p
loads.
Re-synchronis- Re-synchronised negative data
54 SDATAN O ed negative
output (120Ω to GND if IBUF
data
floating).
Re-synchronis- Re-synchronised positive data
55 SDATAP O ed positive
output (120Ω to GND if IBUF
data
floating).
PLL
PLL recovered clock negative
56 SCLKN O recovered
(120Ω to GND if IBUF
clock negative floating).
PLL
PLL recovered clock positive
57 SCLKP O recovered
(120Ω to GND if IBUF
clock positive floating).
58
GND1 - Ground
Power supply.
59
VDD
-
Power supply
Power supply, 4.75 - 5.25
Volts.
60
TXEN
O
Logic transmit Connect to ENTX if using
window enable internal packet data generator.
61
ENTX
I
Enable
transmit
Set Logic High or Low or to
TXEN.
62
TXSEL
I
Select packet
transmit
Set Logic High or Low.
63
QUIETRX
I
Quiet
reception
Set Logic High or Low.
64
MONRX
I
Monitor PIN
receive select
Set Logic High or Low.
ACS411CS PRE-RELEASE Issue 6.0 July 1999.
40
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