ACS401 Semtech Corporation, ACS401 Datasheet - Page 8

• Manufacturer Part Number: ACS401
• Description: Optical Modem ic
• Manufacturer: Semtech Corporation

Absolute Maximum Ratings
Static Digital Input Characteristics (for specified operating conditions)
Input pins: XI1, XI2, SETB.
Note 1: Input current is mainly attributed to pull-up resistor, so it applies when input is Low.The High input current
is <10µA.
Static Digital Output Characteristics (for specified operating conditions)
Output pins: RxD1/2/3, XO1 XO2, DCDB, ERRL, ERRD, RxCL, CLK9, TxCL(output), HBT.
Acapella Ltd.
Epsilon House
Chilworth Research Centre
Southampton SO16 7NP
England
In the
©Copyright, Acapella Ltd., 1997
Operating Conditions
Static Digital Input Characteristics (for specified operating conditions)
Input pins: DR 1/2/3/4, DM 1/2/3, DP1/2/3/4 CKC, TXD1/2/3, PORB, TxCL(input)
Power supply VD+ and VA+
(VDD = VD+ or VA+)
Input voltage
(non-supply pins)
Input current
(except LAN,LAP,PINN,PINP,CNT)
Input current
(LAN, LAP,PINN,PINP,CNT)
Storage temperature
Vout Low (Iin = 4mA)
except HBT
Vout High (Iout = 4mA)
except HBT
Vout Low (Iin - 16mA)
HBT
Vout High (Iout = 16mA)
HBT
Max load capcitance
Power supply
(VA+ and DA+)
Ambient temperature range
Vin High
Vin Low
Input currentIin
Vin High
Vin Low
Pull-up resistor
Input current
(Note 1)
interest of further product development Acapella reserve the right to change this specification without further notice.
Parameter
Parameter
Parameter
Parameter
Parameter
Symbol
Symbol
Symbol
Symbol
Voh
Voh
Vih
Vih
Vol
Vol
Symbol
V+
TA
Vil
PU
CI
Vil
Iin
-
VDD
Tstor
Vin
Iin
Iin
VDD-0.5
VDD-0.5
Min
Min
Min
Min
-40
2.0
50k
2.0
0
0
-
-
GND - 0.3
-
-
-
Min
-0.3
-50
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-
-
Typ
Typ
Typ
Typ
125k
5.0
10
-
-
-
-
-
-
-
-
-
-
-
VDD + 0.3
Max
10.0
160
6.0
1.0
Max
Max
Max
Max
340k
5.25
100
0.5
0.5
0.8
µA
0.8
50
85
-
-
-
-
Units
Units
Units
Units
Units
mA
mA
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˚C
V
V
µA
pF
˚C
V
V
V
V
V
V
V
V
V
Dynamic Characteristics
Note 2: Power consumption assumes CMOS loads. Check with Acapella for other bandwidth products.
Matching Characteristics (for specified operating conditions
Crystal frequency
(XT1, XTO)
External clock (XTI)
High or Low time
RxD and TxD data rate
‘double’mode
RxCLand TxCLduty cycle
(with TxCL= output)
Frequency deviation at TxCLfrom
selected value (with TxCL= input)
TxD to TxCLset-up time
TxD to TxCLhold time
RxD to RxCLset-up time
RxD to RxCLhold time
Digital output - fall time
Digital output - rise time
LASER/LED peak current = 50mA
Single channel 64 kbps
(Note 2)
Crystal tolerance
use parallel resonate crystal and
recommended padding capacitors
Minimum amplifier sensitivity
Maximum amplifier input current
Rtrc=0.8 kOhm
Rtrc=40 kOhms
LED current
Rtrc=0.8 kOhm
Rtrc=40 kOhm
Single-Fibermode Parameters
LED capacitance with Vr=0
with Irec=500 nA
with Irec=1000 nA
LED leakage current Vr=1.4
LED reverse bias
LASER PIN diode leakage current
LASER PINdiode reverse bias
Dual-Fibermode Parameters
PINleakage current
PINreverse bias
‘standard’mode
Power consumption with
Rtre placed between TRC and GND
Laser current (max limit)
Vrp=4.0V
PIN capacitance with Vr=0
Parameter
Parameter
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Symbol
Symbol
XTAL
Lleak
Lleak
Ilaser
Pleak
Imax
Rtrc
fclp
fclp
tsur
Iled
twh
tsut
Vrp
twl
thr
Fd
tht
Pc
Ct
CI
Vr
CI
Vr
tf
tr
XTAL/576
XTAL/576
Min
Min
-100
0.8k
0.65
0.95
500
300
1.0
1.8
1.8
40
25
75
75
-
-
-
-
-
1
-
-
-
-
-
-
-
-
-
(1/RxCL)
(1/RxCL)
9.216
Typ
0.5 *
Typ
0.5 *
1.15
1.15
100
100
2.5
2.5
50
35
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
XTAL/144
XTAL/72
Max
Max
100
100
100
500
40k
125
125
100
500
100
150
3.2
3.2
1.4
4.0
1.4
12
60
50
20
-
-
-
-
-
-
-
-
Units
Units
MHz
ppm
mW
ppm
bps
mA
mA
mA
nA
nA
nA
pF
nA
pF
%
ns
ns
ns
ns
ns
ns
%
V
V
V