SY89874UMGTR datasheet(3/10 Pages) MICREL

Part #	SY89874UMGTR

Description	2.5GHz ANY DIFF. IN-TO-LVPECL PROGRAMMABLE CLOCK DIVIDER

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Manufacturer	MICREL [Micrel Semiconductor]

Direct Link	http://www.micrel.com

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3

Precision Edge®

SY89874U

Micrel, Inc.

M9999-031208

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

Note 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 ratlng

conditions for extended periods may affect device reliability.

Note 2.

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

Note 3.

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

Note 4.

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

Absolute Maximum Ratings(Note 1)

Supply Voltage (V

CC) .................................. –0.5V to +4.0V

Input Voltage (V

IN) .................................. –0.5V to VCC+0.3

ECL Output Current (I

OUT)

Continuous ......................................................... 50mA

Surge ................................................................ 100mA

Input Current IN, /IN (I

IN) .......................................... ±50mA

V

T Current (IVT) ...................................................... ±100mA

V

REF-AC Sink/Source Current (IVREF-AC), Note 3 ....... ±2mA

Lead Temperature (soldering 20 sec.) ...................... 260

°C

Storage Temperature (T

S) ....................... –65°C to +150°C

Operating Ratings(Note 2)

Supply Voltage (V

CC) ................ +3.3V ±10% or +2.5V ±5%

Ambient Temperature (T

A) ......................... –40°C to +85°C

Package Thermal Resistance

MLF®

(θ

JA)

Still-Air ............................................................. 60

°C/W

500lfpm ............................................................ 54

°C/W

MLF®

(ψ

JB), Note 4

Junction-to-Board ............................................ 32

°C/W

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

Symbol

Parameter

Condition

Min

Typ

Max

Units

VCC

Power Supply

2.375

3.63

V

ICC

Power Supply Current

No load, max. VCC

50

75

mA

RIN

Differential Input Resistance

90

100

110

Ω

(IN-to-/IN)

VIH

Input High Voltage (IN, /IN)

Note 3

0.1

–

VCC+0.3

V

VIL

Input Low Voltage (IN, /IN)

Note 3

–0.3

–

VIH–0.1

V

VIN

Input Voltage Swing

Notes 3, 4

0.1

–

VCC

V

VDIFF_IN

Differential Input Voltage Swing

Notes 3, 4, 5

0.2

–

V

|IIN|

Input Current (IN, /IN)

Note 3

––

45

mA

VREF-AC

Reference Voltage

Note 6

VCC–1.525 VCC–1.425 VCC–1.325

V

Note 1.

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

Note 2.

Specification for packaged product only.

Note 3.

Due to the internal termination (see

“Input Structures” ) 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!

Note 4.

See

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

Note 5.

See

“Typical Operating Characteristics” section for VDIFF definition.

Note 6.

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

DC ELECTRICAL CHARACTERISTICS(Notes 1, 2)

VCC = 3.3V ±10% or 2.5V ±5%; TA = –40°C to +85°C, RL = 50Ω to VCC –2V; Unless otherwise stated.

Symbol

Parameter

Condition

Min

Typ

Max

Units

VOH

Output High Voltage

VCC–1.145 VCC–1.020 VCC–0.895

V

VOL

Output Low Voltage

VCC–1.945 VCC–1.820 VCC–1.695

V

VOUT

Output Voltage Swing

550

800

1050

mV

VDIFF_OUT

Differential Output Voltage Swing

1.10

1.60

2.10

V

Note 1.

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

Note 2.

Specification for packaged product only.

(100KEP) LVPECL DC ELECTRICAL CHARACTERISTICS(Notes 1, 2)

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