SY58021UMG Micrel Inc, SY58021UMG Datasheet - Page 3

• Manufacturer Part Number: SY58021UMG
• Description: IC BUFFER/TRANSLATOR 1:4 16-MLF
• Manufacturer: Micrel Inc
• Series: Precision Edge®r
• Type: Fanout Buffer (Distribution), Translatorr

Specifications of SY58021UMG

• Number Of Circuits: 1
• Ratio - Input:output: 1:4
• 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: 16-MLF®, QFN
• Frequency-max: 4GHz
• Number Of Outputs: 8
• Operating Supply Voltage (max): 3.6V
• Operating Temp Range: -40C to 85C
• Propagation Delay Time: 0.3ns
• Operating Supply Voltage (min): 2.375V
• Mounting: Surface Mount
• Pin Count: 16
• Operating Supply Voltage (typ): 2.5/3.3V
• Package Type: MLF EP
• Input Frequency: 4GHz
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 576-1535-5; SY58021UMG

Pin Description
14, 15, 11, 12,
Micrel, Inc.
August 2010
Pin Number
9, 10, 6, 7
8, 13
5, 16
1, 4
2
3
Exposed Pad
/Q0, Q0, /Q1,
Q1, /Q2, Q2,
Pin Name
VREF-AC
/Q3, Q3
IN, /IN
GND,
VCC
VT
Pin Function
Differential Input: This input pair receives the signal to be buffered. Each pin of this pair internally
terminates with 50Ω to the VT pin. Note that this input will default to an indeterminate state if left
open. See “Input Interface Applications” section.
Input Termination Center-Tap: Each input terminates to this pin. The V
for each input (IN, /IN) to the termination network for maximum interface flexibility. See “Input
Interface Applications” section.
Reference Output Voltage: This output biases to V
differential inputs. Connect V
to V
Positive Power Supply: Bypass with 0.1µF//0.01µF low ESR capacitors as close to the V
as possible.
Ground. Exposed pad must be connected to a ground plane that is the same potential as the
ground pin.
LVPECL Differential Output Pairs: Differential buffered output copy of the input signal. The output
swing is typically 800mV Proper termination is 50 Ω to V
output pairs may be left floating with no impact on jitter or skew. See “LVPECL Output
Termination” section.
CC
. See “Input Interface Applications” section.
REF-AC
3
directly to the VT pin. Bypass with 0.01µF low ESR capacitor
CC
–1.2V. It is used when AC-coupling to
CC
[e-mail]
–2V at the receiving end. Unused
T
pin provides a center-tap
or [phone]
M9999-080510-A
SY58021U
CC
pins