ACS8520T Semtech, ACS8520T Datasheet - Page 5
ACS8520T
Manufacturer Part Number
ACS8520T
Description
Synchronous Equipment Timing Source (SETS) for Stratum 3/4E/4 and SMC Systems
Manufacturer
Semtech
Datasheet
1.ACS8520T.pdf
(150 pages)
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Table 1 Power Pins
Note...I = Input, O = Output, P = Power, TTL
Table 2 Internally Connected Pins
Revision 3.02/October 2005 © Semtech Corp.
Pin Description
ADVANCED COMMUNICATIONS
12, 13,
16
26
33,
39
44
50, 61,
85, 86
6
19, 91
11, 14,
15,
49, 62,
84, 87
29
32,
38
1, 5,
20, 92
3, 4, 17, 22,
96, 97, 98
Pin Number
Pin Number
VD1+, VD3+,
VD2+
VAMI+
VDD_DIFFa,
VDD_DIFFb
VDD5
VDDa, VDDd,
VDDc, VDDb
VA1+
VA2+, VA3+
DGND1, DGND3,
DGND2,
DGNDa, DGNDd,
DGNDc, DGNDb
GND_AMI
GND_DIFFa,
GND_DIFFb
AGND, AGND1,
AGND2, AGND3
IC1, IC2, IC3, IC4,
IC5, IC6, IC7
Symbol
Symbol
I/O
I/O
P
P
P
P
P
P
P
P
P
P
P
P
-
U
= TTL input with pull-up resistor, TTL
Type
Type
-
-
-
-
-
-
-
-
-
-
-
-
-
FINAL
Page 5
Supply Voltage: Digital supply to gates in analog section, +3.3 Volts
±10%.
Supply Voltage: Digital supply to AMI output, +3.3 Volts ±10%.
Supply Voltage: Digital supply for differential ports, +3.3 Volts ±10%.
Digital Supply for +5 Volts Tolerance to Input Pins. Connect to +5 Volts
(±10%) for clamping to +5 Volts. Connect to VDD for clamping to +3.3
Volts. Leave floating for no clamping, input pins tolerant up to +5.5
Volts.
Supply Voltage: Digital supply to logic, +3.3 Volts ±10%.
Supply Voltage: Analog supply to clock multiplying PLL, +3.3 Volts ±10%.
Supply Voltage: Analog supply to output PLLs, +3.3 Volts ±10%.
Supply Ground: Digital ground for components in PLLs.
Supply Ground: Digital ground for logic.
Supply Ground: Digital ground for AMI output.
Supply Ground: Digital ground for differential ports.
Supply Ground: Analog grounds.
Internally Connected: Leave to Float.
D
= TTL input with pull-down resistor.
Description
Description
ACS8520 SETS
DATASHEET
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