ICS85310AYI-21LNT IDT, Integrated Device Technology Inc, ICS85310AYI-21LNT Datasheet - Page 8

• Manufacturer Part Number: ICS85310AYI-21LNT
• Description: IC FANOUT BUFFER 1-5 DUAL 32LQFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: HiPerClockS™r
• Type: Fanout Buffer (Distribution)r

Specifications of ICS85310AYI-21LNT

• Number Of Circuits: 2
• Ratio - Input:output: 1:5
• Differential - Input:output: Yes/Yes
• Input: HCSL, LVDS, LVHSTL, LVPECL, SSTL
• Output: ECL, LVPECL
• Frequency - Max: 700MHz
• Voltage - Supply: 2.375 V ~ 3.8 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-LQFP
• Frequency-max: 700MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 85310AYI-21LNT

T
Figure 3A and Figure 3B show examples of termination for 2.5V
LVPECL driver. These terminations are equivalent to terminat-
ing 50Ω to V
85310AYI-21
F
ERMINATION FOR
IGURE
VCCO=2.5V
VCCO=2.5V
F
IGURE
2,5V LVPECL
Driv er
2,5V LVPECL
Driv er
3A. 2.5V LVPECL D
CC
3C. 2.5V LVPECL T
- 2V. For V
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
R1
50
R2
62.5
D
T
ERMINATION
CC
IFFERENTIAL
- 2V is very close to
R3
250
UTPUTS
R2
50
R4
62.5
E
XAMPLE
+
-
+
-
E
2.5V
2.5V
XAMPLE
www.idt.com
-
TO
-2.5V/3.3V ECL/LVPECL F
8
ground level. The R3 in Figure 3B can be eliminated and the
termination is shown in Figure 3C.
F
IGURE
VCCO=2.5V
2,5V LVPECL
Driv er
3B. 2.5V LVPECL D
Zo = 50 Ohm
Zo = 50 Ohm
L
OW
ICS85310I-21
S
RIVER
KEW
R1
50
T
ERMINATION
, D
ANOUT
R2
50
R3
18
REV. E AUGUST 13, 2010
UAL
, 1-
+
-
B
E
2.5V
UFFER
XAMPLE
TO
-5