SY89531LHC Micrel Inc, SY89531LHC Datasheet - Page 15

• Manufacturer Part Number: SY89531LHC
• Description: IC SYNTHESIZR LVPECL/HSTL 64TQFP
• Manufacturer: Micrel Inc
• Series: Precision Edge®r
• Type: Clock/Frequency Synthesizerr

Specifications of SY89531LHC

• Pll: Yes
• Input: Crystal
• Output: HSTL, LVPECL
• Number Of Circuits: 1
• Ratio - Input:output: 1:13
• Differential - Input:output: No/Yes
• Frequency - Max: 500MHz
• Divider/multiplier: Yes/No
• Voltage - Supply: 1.6 V ~ 3.6 V
• Operating Temperature: 0°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-TQFP Exposed Pad, 64-eTQFP, 64-HTQFP, 64-VQFP
• Frequency-max: 500MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Micrel, Inc.
Note 1.
Note 2.
Note 3.
M9999-010808
[e-mail] or [phone]
OUTPUT TERMINATION RECOMMENDATIONS
Place termination resistors as close to destination inputs as possible.
PECL Y-termination is a power-saving alternative to Thevenin termination.
R
b
resistor sets the DC bias voltage, equal to V
Figure 6. PECL Parallel Termination Thevenin Equivalent
Figure 7. LVPECL Three-Resistor “Y-Termination”
+3.3V
“Source”
“Source”
+3.3V
Source
+3.3V
Figure 8. HSTL Differential Termination
Z
t
Z
. For +3.3V systems R
O
O
Z
Z
= 50
= 50
O
O
Z
Z
O
O
= 50
= 50
= 50
= 50
R1
130
R2
82
50
15
50
+3.3V
b
= 46 to 50 .
50
50
R b
50
R1
130
R2
82
“Destination”
+3.3V
Destination
+3.3V
C1 (optional)
0.01 F
(Note 1)
V
“Destination”
t
= V
+3.3V
(Notes 1, 2, 3)
CC
–2V
(Note 1)
Precision Edge
SY89531L
®