SY89531LHC Micrel Inc, SY89531LHC Datasheet - Page 11

• 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.
Power Supply Filtering Techniques
filtering is very important. At a minimum, V
and all V
via 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
M9999-010808
[e-mail] or [phone]
Note 1. Same dividers apply to FSEL_B (0:2) and FSEL_C (0:2).
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
*For V
use ferrite bead = 200mA, 0.45 DC,
Murata P/N BLM21A1025
*For V
Murata, P/N BLM31P005
*Component size: 0805
(1)
pins should be individually connected using a
Figure 4. Power Supply Filtering
“Power Supply”
(MSB)
CC_
CC_OUT
side
22 F
Analog,V
use ferrite bead = 3A, 0.025 DC,
Ferrite Bead*
CC_TTL,
FSEL_A1
V
CC1,
1 F
0
0
1
1
0
0
1
1
(1)
“Device”
0.01 F
side
CC
V
Pins
A, V
CC
FSEL_A0
CC
_Logic,
0
1
0
1
0
1
0
1
(1)
(LSB)
11
output in the same manner as the normal output that is
begin used. Unused output pairs can be left floating. 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:
HSTL operation (Bank B):
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
This part has an exposed die pad for enhanced heat
For additional information on exposed-pad characteristics
50 .
recommended for LVPECL.
effective 50 .
Output Disable Function, all outputs: Q = LOW, /Q = HIGH
Output Divider
VCO
VCO
VCO
VCO
VCO
VCO
VCO
CC
10
12
18
2
4
6
8
–1.3V, typical.
PP
PP
to 800mV
to 450mV
Precision Edge
PP
PP
SY89531L
into
into
®