ICS853S12AKILF IDT, Integrated Device Technology Inc, ICS853S12AKILF Datasheet - Page 11

• Manufacturer Part Number: ICS853S12AKILF
• Description: IC FANOUT BUFFER LVPECL 32-VFQFN
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: HiPerClockS™r
• Type: Fanout Buffer (Distribution)r

Specifications of ICS853S12AKILF

• Number Of Circuits: 1
• Ratio - Input:output: 1:12
• Differential - Input:output: Yes/Yes
• Input: CML, LVPECL, SSTL
• Output: LVPECL
• Frequency - Max: 1.5GHz
• Voltage - Supply: 2.375 V ~ 3.465 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-VFQFN
• Frequency-max: 1.5GHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 800-1177; 853S12AKILF

T
Figure 5A and Figure 5B show examples of termination for 2.5V
LVPECL driver. These terminations are equivalent to terminating
50Ω to V
IDT
F
ERMINATION FOR
ICS853S12I
LOW SKEW, 1-TO-12, DIFFERENTIAL-TO-3.3V, 2.5V LVPECL FANOUT BUFFER
IGURE
VCC=2.5V
VCC=2.5V
™
/ ICS
F
IGURE
2,5V LVPECL
Driv er
2,5V LVPECL
Driv er
CC
™
5A. 2.5V LVPECL D
- 2V. For V
LVPECL FANOUT BUFFER
5C. 2.5V LVPECL T
Zo = 50 Ohm
Zo = 50 Ohm
Zo = 50 Ohm
Zo = 50 Ohm
2.5V LVPECL O
CC
= 2.5V, the V
RIVER
2.5V
R1
250
ERMINATION
CC
R2
62.5
R1
50
- 2V is very close to ground
T
ERMINATION
R3
250
UTPUTS
R4
62.5
R2
50
E
XAMPLE
+
-
+
-
E
2.5V
2.5V
XAMPLE
11
level. The R3 in Figure 5B can be eliminated and the termination
is shown in Figure 5C.
F
VCC=2.5V
IGURE
2,5V LVPECL
Driv er
5B. 2.5V LVPECL D
Zo = 50 Ohm
Zo = 50 Ohm
ICS853S12AKI REV. A MAY 21, 2008
RIVER
R1
50
T
ERMINATION
R2
50
R3
18
+
-
E
2.5V
XAMPLE