SY58032UMG Micrel Inc, SY58032UMG Datasheet - Page 8

• Manufacturer Part Number: SY58032UMG
• Description: IC BUFFER 1:8FANOUT LVPECL 32MLF
• Manufacturer: Micrel Inc
• Series: Precision Edge®r
• Type: Fanout Buffer (Distribution)r

Specifications of SY58032UMG

• Number Of Circuits: 1
• Ratio - Input:output: 1:8
• Differential - Input:output: Yes/Yes
• Input: CML, LVDS, LVPECL
• Output: LVPECL
• Frequency - Max: 4GHz
• Voltage - Supply: 2.375 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-MLF®, QFN
• Frequency-max: 4GHz
• Number Of Outputs: 16
• Operating Supply Voltage (max): 3.6V
• Operating Temp Range: -40C to 85C
• Propagation Delay Time: 0.33ns
• Operating Supply Voltage (min): 2.375V
• Mounting: Surface Mount
• Pin Count: 32
• Operating Supply Voltage (typ): 2.5/3.3V
• Package Type: MLF
• Input Frequency: 4GHz
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 576-1389

Micrel, Inc.
impedance (open emitter), and small signal swing which
results in low EMI. LVPECL is ideal for driving 50Ω and 100Ω
controlled impedance transmission lines. There are several
techniques for terminating the LVPECL output: Parallel
M9999-072810
[e-mail] or [phone]
Part Number
SY58031U
SY58032U
SY58033U
LVPECL OUTPUT
RELATED MICREL PRODUCTS AND SUPPORT DOCUMENTATION
LVPECL has high input impedance, and very low output
Function
Ultra-Precision 1:8 Fanout Buffer with 400mV CML
Outputs and Internal I/O Termination
Ultra-Precision 1:8 Fanout Buffer with LVPECL
Outputs and Internal Termination
Ultra-Precision 1:8 Fanout Buffer with 400mV LVPECL
Outputs and Internal Termination
32-MLF
Application Note
HBW Solutions
®
Manufacturing Guidelines Exposed Pad
“source”
Figure 4. Parallel Termination-Thevenin Equivalent
Notes:
1. Power-saving alternative to Thevenin termination.
2. Place termination resistors as close to destination inputs as possible.
3. R
4. For 2.5V systems, R
+3.3V
+3.3V
b
For +2.5V systems,
R1 = 250Ω, R2 = 62.5Ω
resistor sets the DC bias voltage, equal to V
Figure 5. Parallel Termination (3-Resistor)
Z
Z
O
O
= 50Ω
= 50Ω
Z = 50Ω
Z = 50Ω
b
= 19Ω, For 3.3V systems, R
130Ω
82Ω
R1
R2
50Ω
8
Termination-Thevenin Equivalent, Parallel Termination
(3-resistor), and AC-coupled Termination. Unused output
pairs may be left floating. However, single-ended outputs
must be terminated, or balanced.
+3.3V
Data Sheet Link
http://www.micrel.com/product-info/products/sy58031u.shtml
http://www.micrel.com/product-info/products/sy58032u.shtml
http://www.micrel.com/product-info/products/sy58033u.shtml
www.amkor.com/products/notes_papers/MLF_AppNote_0902.pdf
http://www.micrel.com/product-info/as/solutions.shtml
R
T
50Ω
.
b
R1
130Ω
R2
82Ω
b
= 50Ω
C1 (optional)
0.01µF
V
“destination”
+3.3V
T
= V
+3.3V
V
CC
CC
–2V
Precision Edge
SY58032U
®