SY89533LHC Micrel Inc, SY89533LHC Datasheet - Page 10

• Manufacturer Part Number: SY89533LHC
• Description: IC SYNTHESIZR LVPECL/LVDS 64TQFP
• Manufacturer: Micrel Inc
• Series: Precision Edge®r
• Type: Clock/Frequency Synthesizerr

Specifications of SY89533LHC

• Pll: Yes
• Input: Crystal
• Output: LVDS, LVPECL
• Number Of Circuits: 1
• Ratio - Input:output: 1:13
• Differential - Input:output: No/Yes
• Frequency - Max: 500MHz
• Divider/multiplier: Yes/No
• Voltage - Supply: 3 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.
Power Supply Filtering Techniques
filtering is very important. At a minimum, V
and all V
to the power supply plane, and separate bypass capacitors
should be used for each pin. To achieve optimal jitter
performance, each power supply pin should use separate
instances of the circuit shown in Figure 4.
Output Logic Characteristics
illustrations. In cases where single-ended output is desired,
the designer should terminate the unused complimentary
Note:
1. Same dividers apply to FSEL_B (0:2) and FSEL_C (0:2).
M9999-010808
[e-mail] or [phone]
POST-DIVIDE FREQUENCY SELECT TABLE (FSEL)
See “Output Termination Recommendations” for
As with any high-speed integrated circuit, power supply
FSEL_A2
CCO
0
0
0
0
1
1
1
1
(1)
pins should be individually connected using a via
(MSB)
Figure 4. Power Supply Filtering
FSEL_A1
0
0
1
1
0
0
1
1
(1)
CC
A, V
FSEL_A0
CC
_Logic,
0
1
0
1
0
1
0
1
(1)
(LSB)
10
output in the same manner as the normal output that is begin
used. Unused LVPECL output pairs can be left floating.
Unused LVDS output pairs (SY89533L) should be terminated
w/100 across the pair. Unused output banks can be switched
off by tying the appropriate FSEL pins to ground. Unused
output pairs that are in a bank that is disabled can be left
floating, regardless of output driver type.
LVPECL operation:
LVDS operation (Bank B, SY89533L):
Thermal Considerations
dissipation. We strongly recommend soldering the exposed
pad to a ground plane. Where this is not possible, we
recommend maintaining at least 500lfpm air flow.
and implementation details, see Amkor Technology’s write-up
at www.amkor.com.
• Typical voltage swing is 700mV
• Common mode voltage is V
• 100 termination across the output pair is NOT
• Typical voltage swing is 250mV
• Common mode voltage is 1.25V, typical.
• 100 termination across differential output pair is fine.
This part has an exposed die pad for enhanced heat
For additional information on exposed-pad characteristics
50 .
recommended for LVPECL.
effective 50 .
Output Divider
VCO
VCO
VCO
VCO
VCO
VCO
VCO
TBD
CC
10
12
18
2
4
6
8
–1.3V, typical.
PP
PP
to 800mV
to 450mV
Precision Edge
SY89532/33L
PP
PP
into
into
®