ICS853L022AMLFT IDT, Integrated Device Technology Inc, ICS853L022AMLFT Datasheet - Page 8

• Manufacturer Part Number: ICS853L022AMLFT
• Description: IC TRANSLATOR LVPECL 8-SOIC
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: HiPerClockS™r
• Type: Translatorr

Specifications of ICS853L022AMLFT

• Number Of Circuits: 2
• Ratio - Input:output: 1:2
• Differential - Input:output: No/Yes
• Input: LVCMOS, LVTTL
• Output: LVPECL
• Frequency - Max: 350MHz
• Voltage - Supply: 3 V ~ 3.8 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC
• Frequency-max: 350MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 853L022AMLFT

3. Calculations and Equations.
LVPECL output driver circuit and termination are shown in Figure 4.
T
voltage of V
Pd_H = [(V
[(2V - 0.935V)/50 ] * 0.935V = 19.92mW
Pd_L = [(V
[(2V - 1.67V)/50 ] * 1.67V = 11.02mW
Total Power Dissipation per output pair = Pd_H + Pd_L = 30.94mW
853L022AG
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
CCO_MAX
CCO
- 2V.
Integrated
Circuit
Systems, Inc.
– (V
– (V
- V
- V
OH_MAX
CCO_MAX
OL_MAX
CCO_MAX
OUT
OUT
) = 0.935V
) = 1.67V
= V
- 2V))/R
- 2V))/R
= V
OL_MAX
OH_MAX
Figure 4. LVPECL Driver Circuit and Termination
L
L
] * (V
= V
] * (V
= V
CCO_MAX
CCO_MAX
CCO_MAX
CCO_MAX
www.icst.com/products/hiperclocks.html
– 1.67V
– 0.935V
- V
- V
OL_MAX
OH_MAX
) = [(2V - (V
) = [(2V - (V
Q1
VCC
8
D
CCO _MAX
CCO _MAX
UAL
LVCMOS / LVTTL-
- V
- V
OL_MAX
OH_MAX
RL
50
VCC - 2V
)) /R
)) /R
VOUT
L
] * (V
3.3V LVPECL T
L
] * (V
CCO_MAX
CCO _MAX
- V
- V
ICS853L022
OL_MAX
OH_MAX
TO
REV. A OCTOBER 29, 2008
) =
-D
) =
IFFERENTIAL
RANSLATOR