SY89873LMITR datasheet(3/11 Pages) MICREL

Part #	SY89873LMITR

Description	3.3V, 2.0GHz ANY DIFF. IN-TO-LVDS PROGRAMMABLE CLOCK DIVIDER FANOUT BUFFER W/ INTERNAL TERMINATION

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Manufacturer	MICREL [Micrel Semiconductor]

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Precision Edge®

SY89873L

Micrel, Inc.

M9999-020707

hbwhelp@micrel.com or (408) 955-1690

Absolute Maximum Ratings(1)

Supply Voltage (VCC) .................................. –0.5V to +4.0V

Input Voltage (VIN) .................................. –0.5V to VCC+0.3

LVDS Output Current (IOUT) .................................... ±10mA

Input Current IN, /IN (IIN) .......................................... ±50mA

VREF-AC Input Sink/Source Current (IVREF-AC)

(3) ............ ±2mA

Lead Temperature (soldering, 20 sec.) ..................... 260°C

Storage Temperature (TS) ....................... –65°C to +150°C

Operating Ratings(2)

Supply Voltage (VCC) ...................................... +3.3V ±10%

Ambient Temperature (TA) ......................... –40°C to +85°C

Package Thermal Resistance

MLF® (θJA)

Still-Air ............................................................. 60°C/W

500 lfpm ........................................................... 54°C/W

MLF® (ΨJB)

(4)

Junction-to-Board ............................................ 38°C/W

TA= –40°C to +85°C; Unless otherwise stated.

Symbol

Parameter

Condition

Min

Typ

Max

Units

VCC

Power Supply

3.0

3.3

3.6

V

ICC

Power Supply Current

No load, Max VCC

85

115

mA

RIN

Differential Input Resistance

90

100

110

Ω

(IN-to-/IN)

VIH

Input High Voltage

Note 6

0.1

VCC+0.3

V

IN, /IN

VIL

Input Low Voltage

Note 6

–0.3

VCC+0.2

V

IN, /IN

VIN

Input Voltage Swing

Notes 6, 7

0.1

3.6

V

VDIFF_IN

Differential Input Voltage Swing

Notes 6, 7, 8

0.2

V

|IIN|

Input Current

Note 6

45

mA

IN, /IN

VREF-AC

Reference Voltage

Note 9

VCC –1.525 VCC–1.425 VCC–1.325

V

Notes:

1. Permanent device damage may occur if

“Absolute Maximum Ratings” are exceeded. This is a stress rating only and functional operation is not implied

at conditions other than those detailed in the operational sections of this data sheet. Exposure to

“Absolute Maximum Ratings” conditions for extended

periods may affect device reliability.

2. The data sheet limits are not guaranteed if the device is operated beyond the operating ratings.

3. Due to the limited drive capability use for input of the same package only.

4. Junction-to-board resistance assumes exposed pad is soldered (or equivalent) to the device’s most negative potential on the PCB.

5. The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established.

6. Due to the internal termination (see

“Input Buffer Structure” ) the input current depends on the applied voltages at IN, /IN and VT inputs. Do not apply a

combination of voltages that causes the input current to exceed the maximum limit!

7. See

“Timing Diagram” for VIN definition. VIN(max) is specified when VT is floating.

8. See Figures 1c and 1d for VDIFF definition.

9. Operating using VIN is limited to AC-coupled PECL or CML applications only. Connect directly to VT pin.

DC ELECTRICAL CHARACTERISTICS(5)

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