8V31012 Buffer Datasheet

8V31012 Datasheet, PDF, Equivalent


Part Number

8V31012

Description

Differential HCSL Fanout Buffer

Manufacture

Renesas

Total Page 18 Pages
Datasheet
Download 8V31012 Datasheet


8V31012
1-to-12, Differential HCSL Fanout Buffer
8V31012
DATA SHEET
General Description
The 8V31012 is a 1-to-12 Differential HCSL Fanout Buffer. The
8V31012 is designed to translate any differential signal levels to
differential HCSL output levels. An external reference resistor is
used to set the value of the current supplied to an external
load/termination resistor. The load resistor value is chosen to equal
the value of the characteristic line impedance of 50. The 8V31012
is characterized at an operating supply voltage of 3.3V.
The differential HCSL outputs, accurate crossover voltage and duty
cycle make the 8V31012 ideal for interfacing to PCI Express and
FBDIMM applications.
Features
Twelve differential HCSL outputs
Translates any differential input signal (LVPECL, LVHSTL, LVDS,
HCSL) to HCSL levels without external bias networks
Maximum output frequency: 250MHz
Output skew: 265ps (typical)
VOH: 850mV (maximum)
Full 3.3V supply voltage
Available in lead-free (RoHS 6) package
-40°C to 85°C ambient operating temperature
Block Diagram
CLK
nCLK
Q6
nQ6
Q7
nQ7
Q8
nQ8
Q9
nQ9
Q10
nQ10
Q11
nQ11
IREF
8V31012 REVISION 1 10/21/15
Pin Assignment
Q0
nQ0
Q0
nQ0
48 47 46 45 44 43 42 41 40 39 38 37
1 36
2 35
VDD
nQ9
Q1
nQ1
VDD 3
Q1 4
34 Q9
33 GND
nQ1 5
32 nQ8
Q2 GND 6
31 Q8
nQ2
Q2 7
8V31012
30 VDD
Q3 nQ2 8
29 nQ7
nQ3
VDD 9
28 Q7
Q4
nQ4
Q5
Q3
nQ3
VDD
10 27
11 26
12 25
13 14 15 16 17 18 19 20 21 22 23 24
VDD
nQ6
Q6
nQ5
48-pin, 7mm x 7mm VFQFN Package
1 ©2015 Integrated Device Technology, Inc.

8V31012
8V31012 DATA SHEET
Pin Description and Pin Characteristic Tables
Table 1. Pin Descriptions
Number
Name
Type
1 Q0 Output
2 nQ0 Output
3 VDD Power
4 Q1 Output
5 nQ1 Output
6
GND
Power
7 Q2 Output
8 nQ2 Output
9 VDD Power
10 Q3 Output
11 nQ3 Output
12 VDD Power
13
GND
Power
14
IREF
Input
15 Q4 Output
16 nQ4 Output
17 VDD Power
18 Q5 Output
19 nQ5 Output
20 VDD Power
21 VDD Power
22 nc unused
23 VDD Power
24
GND
Power
25 Q6 Output
26 nQ6 Output
27 VDD Power
28 Q7 Output
29 nQ7 Output
30 VDD Power
Description
Differential output pair. Differential HCSL interface levels.
Differential output pair. Differential HCSL interface levels.
Power supply pin.
Differential output pair. Differential HCSL interface levels.
Differential output pair. Differential HCSL interface levels.
Power supply ground.
Differential output pair. Differential HCSL interface levels.
Differential output pair. Differential HCSL interface levels.
Power supply pin.
Differential output pair. Differential HCSL interface levels.
Differential output pair. Differential HCSL interface levels.
Power supply pin.
Power supply ground.
External fixed precision resistor (950) from this pin to ground provides a reference current
used for differential current-mode Qx, nQx clock outputs.
Differential output pair. Differential HCSL interface levels.
Differential output pair. Differential HCSL interface levels.
Power supply pin.
Differential output pair. Differential HCSL interface levels.
Differential output pair. Differential HCSL interface levels.
Power supply pin.
Power supply pin.
No connect.
Power supply pin.
Power supply ground.
Differential output pair. Differential HCSL interface levels.
Differential output pair. Differential HCSL interface levels.
Power supply pin.
Differential output pair. Differential HCSL interface levels.
Differential output pair. Differential HCSL interface levels.
Power supply pin.
1-TO-12, DIFFERENTIAL HCSL FANOUT BUFFER
2
REVISION 1 10/21/15


Features 1-to-12, Differential HCSL Fanout Buffer 8V31012 DATA SHEET General Descripti on The 8V31012 is a 1-to-12 Differentia l HCSL Fanout Buffer. The 8V31012 is de signed to translate any differential si gnal levels to differential HCSL output levels. An external reference resistor is used to set the value of the curren t supplied to an external load/terminat ion resistor. The load resistor value i s chosen to equal the value of the char acteristic line impedance of 50. The 8V31012 is characterized at an operati ng supply voltage of 3.3V. The differen tial HCSL outputs, accurate crossover v oltage and duty cycle make the 8V31012 ideal for interfacing to PCI Express an d FBDIMM applications. Features • Tw elve differential HCSL outputs • Tran slates any differential input signal (L VPECL, LVHSTL, LVDS, HCSL) to HCSL leve ls without external bias networks • M aximum output frequency: 250MHz • Out put skew: 265ps (typical) • VOH: 850m V (maximum) • Full 3.3V supply voltage • Available in lead-free (RoHS 6) pa.
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