PACCLK5406D-S-EVN Lattice, PACCLK5406D-S-EVN Datasheet - Page 27

• Manufacturer Part Number: PACCLK5406D-S-EVN
• Description: Development Software ispClock5312S Eval 56020A Dev Mix Sig
• Manufacturer: Lattice

Specifications of PACCLK5406D-S-EVN

• Tool Type: Development Software Support
• Core Architecture: CPLD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Lattice Semiconductor
Figure 29. Bank 0 SSTL15/SSTL18 with On Board Termination
SSTL25
Figure 30 shows the only difference from SSLT15/SSTL18 and SSTL25 is the source termination R16 and R17
increases from 20 ohms to 25 ohms. The remainder of the circuit is the same as SSTL15/SSTL18, discussed
above.
Figure 30. Bank 0 SSTL25 with On-Board Termination
eHSTL/HSTL
For eHSTL and HSTL the source termination resistance R16 and R17 drops to zero ohms as shown in Figure 31.
The remainder of the termination and sensing circuitry is the same as for SSTL.
Figure 31. Bank 0 eHSTL/HSTL with On Board Termination
ispClock
ispClock
ispClock
Buffers
Buffers
Buffers
SSTL
SSTL
HSTL
R16
R17
R16
R17
R16
R17
20
20
25
25
0
0
ispClock5406D Standard Evaluation Board
ispClock5406D Standard Evaluation Board
ispClock5406D Standard Evaluation Board
50 ohms / 64.3 mm
50 ohms / 64.3 mm
50 ohms / 64.3 mm
50 ohms / 64.3 mm
50 ohms / 64.3 mm
50 ohms / 64.3 mm
On Board T-Line
On Board T-Line
On Board T-Line
On Board T-Line
On Board T-Line
On Board T-Line
R33
R32
100
100
R33
100
R32
100
R33
R32
100
100
VCCO
VCCO
VCCO
VCCO
VCCO
VCCO
R23
71.5
R24
71.5
R23
71.5
R24
71.5
R23
71.5
R24
71.5
27
45.3
45.3
45.3
45.3
45.3
45.3
R25
R27
R26
R25
R27
R26
R25
R27
R26
0
0
0
R28
18.7
R29
18.7
R28
18.7
R29
18.7
R28
18.7
R29
18.7
BANK_0N
BANK_0N
BANK_0N
BANK_0P
BANK_0P
BANK_0P
R30
R31
R30
R31
R30
R31
0
0
0
0
0
0
J4
J4
J4
J3
J3
J3
ispClock5400D Evaluation Board
SMA to BNC Cable
SMA to BNC Cable
SMA to BNC Cable
SMA to BNC Cable
SMA to BNC Cable
SMA to BNC Cable
50 ohms / 91 cm
50 ohms / 91 cm
50 ohms / 91 cm
50 ohms / 91 cm
50 ohms / 91 cm
50 ohms / 91 cm
User’s Guide
Scope
Scope
5pF
5pF
Scope
5pF
5pF
5pF
5pF
50
50
50
50
50
50