ICS85357AG-01 IDT, Integrated Device Technology Inc, ICS85357AG-01 Datasheet - Page 9
![](/photos/31/27/312709/20pin_tssop_sml.jpg)
ICS85357AG-01
Manufacturer Part Number
ICS85357AG-01
Description
Manufacturer
IDT, Integrated Device Technology Inc
Type
Clock Multiplexerr
Datasheet
1.ICS85357AG-01.pdf
(14 pages)
Specifications of ICS85357AG-01
Number Of Clock Inputs
4/2
Mode Of Operation
Differential
Output Frequency
750MHz
Output Logic Level
ECL/LVPECL
Operating Supply Voltage (min)
-3.135/3.135V
Operating Supply Voltage (typ)
-3.3/3.3V
Operating Supply Voltage (max)
-3.465/3.465V
Package Type
TSSOP
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
20
Lead Free Status / RoHS Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ICS85357AG-01LFT
Manufacturer:
IDT
Quantity:
20 000
3. Calculations and Equations.
LVPECL output driver circuit and termination are shown in Figure 4.
T
voltage of V
Pd_H is power dissipation when the output drives high.
Pd_L is the power dissipation when the output drives low.
Pd_H = [(V
[(2V - 0.9V)/50 ] * 0.9V = 19.8mW
Pd_L = [(V
[(2V - 1.7V)/50 ] * 1.7V = 10.2mW
Total Power Dissipation per output pair = Pd_H + Pd_L = 30mW
85357AG-01
o calculate worst case power dissipation into the load, use the following equations which assume a 50 load, and a termination
•
•
For logic high, V
(V
For logic low, V
(V
OL_MAX
OH_MAX
CC_MAX
CC_MAX
CC
- 2V.
– (V
– (V
- V
- V
OL_MAX
OH_MAX
CC_MAX
CC_MAX
OUT
OUT
) = 1.7V
) = 0.9V
- 2V))/R
- 2V))/R
= V
= V
OL_MAX
OH_MAX
L
L
F
] * (V
] * (V
IGURE
= V
= V
CC_MAX
CC_MAX
CC_MAX
D
CC_MAX
4. LVPECL D
IFFERENTIAL
- V
– 1.7V
- V
– 0.9V
OL_MAX
OH_MAX
) = [(2V - (V
) = [(2V - (V
www.idt.com
RIVER
V
-
Q1
CC
TO
9
-3.3V LVPECL / ECL C
C
CC_MAX
CC_MAX
IRCUIT AND
- V
- V
OL_MAX
OH_MAX
T
RL
V
50
ERMINATION
)) /R
CC
)) /R
- 2V
V
L
OUT
] * (V
L
] * (V
CC_MAX
CC_MAX
- V
- V
OL_MAX
OH_MAX
ICS85357-01
LOCK
) =
) =
M
4:1
ULTIPLEXER
REV. B JULY 29, 2010
OR
2:1