SY89858UMG Micrel Inc, SY89858UMG Datasheet - Page 3

• Manufacturer Part Number: SY89858UMG
• Description: IC BUFFER 1:8 LVPECL 32-MLF
• Manufacturer: Micrel Inc
• Series: Precision Edge®r
• Type: Fanout Buffer (Distribution)r

Specifications of SY89858UMG

• Number Of Circuits: 1
• Ratio - Input:output: 1:8
• Differential - Input:output: Yes/Yes
• Input: CML, LVDS, PECL
• Output: LVPECL
• Frequency - Max: 3GHz
• 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: 3GHz
• Number Of Outputs: 16
• Operating Supply Voltage (max): 3.6V
• Operating Temp Range: -40C to 85C
• Propagation Delay Time: 0.38ns
• 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: 3GHz
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 576-2103-5; SY89858UMG

Micrel, Inc.
Ordering Information
Pin Configuration
Pin Description
August 2007
Notes:
1. Contact factory for die availability. Dice are guaranteed at T
2. Tape and Reel.
1, 8, 9, 16, 18,
31, 30, 29, 28,
27, 26, 22, 21,
20, 19, 15, 14,
Part Number
SY89858UMG
SY89858UMGTR
13, 12, 11, 10
Pin Number
2, 7, 17, 24
23, 25, 32
3, 6
4
5
(2)
/Q1, Q2, /Q2,
/Q4, Q5, /Q5,
Exposed Pad
Q0, /Q0, Q1,
Q3, /Q3, Q4,
Q6, /Q6, Q7,
Pin Name
VREF-AC
IN, /IN
GND
VCC
(1)
/Q7
VT
Package
QFN-32
QFN-32
Type
Pin Function
Differential Input: This differential input accepts AC- or DC-coupled signals as
small as 100mV (200mV
through 50 . Note that these inputs will default to an indeterminate state if left
open. Please refer to the “Input Interface Applications” section for more details.
Input Termination Center-Tap: Each side of the differential input pair terminates
to this VT pin. The VT pin provides a center-tap to a termination network for
maximum interface flexibility. See the “Input Interface Applications” section for
more details.
Reference Voltage: This output biases to V
coupling inputs IN and /IN. Connect VREF-AC directly to the corresponding VT
pin. Bypass with 0.01uF low ESR capacitor to V
capability is 1.5mA.
Positive Power Supply: Bypass with 0.1 F//0.01 F low ESR capacitors as close
to the VCC pins as possible.
100k LVPECL Differential Outputs: Differential buffered output copy of the input
signal. The LVPECL output swing is typically 800mV into 50
Unused output pairs may be left floating with no impact on jitter. See “LVPECL
Output” section.
Ground: Ground pins and exposed pad must be connected to the same ground
plane.
Operating
Industrial
Industrial
Range
32-Pin QFN
3
A
SY89858 with Pb-Free bar-line indicator
SY89858 with Pb-Free bar-line indicator
= 25°C, DC Electricals Only.
PP
). Each pin of this pair internally terminates to a VT pin
Package Marking
[e-mail]
CC
–1.2V (typical). It is used for AC-
CC
. Maximum sink/source
Ω to V
Pb-Free
Pb-Free
or [phone]
NiPdAu
NiPdAu
M9999-082907-C
Finish
Lead
SY89858U
CC
–2V.