SY89297U datasheet(6/15 Pages) MICREL

Part #	SY89297U

Description	2.5/3.3V, 3.2Gbps Precision CML

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Manufacturer	MICREL [Micrel Semiconductor]

Direct Link	http://www.micrel.com

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Micrel, Inc.

SY89297U

December 2011

6

M9999-120211-C

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

CML Outputs DC Electrical Characteristics(6)

VCC = +2.5V +5% or +3.3V ±10%, RL = 100Ω across the outputs; TA = −40°C to +85°C, unless otherwise stated.

Symbol

Parameter

Condition

Min.

Typ.

Max.

Units

VOH

Output HIGH Voltage

RL = 50Ω to VCC

VCC−0.020

VCC−0.010

VCC

V

VOUT

Output Voltage Swing

See Figure 5a

325

400

mV

VDIFF_OUT

Differential Output Voltage Swing

See Figure 5b

650

800

mV

ROUT

Output Source Impedance

45

50

55

Ω

LVTTL/CMOS DC Electrical Characteristics(6)

VCC = +2.5V +5% or 3.3V ±10%, TA = −40°C to +85°C, unless otherwise stated.

Symbol

Parameter

Condition

Min.

Typ.

Max.

Units

VIH

Input HIGH Voltage

2.0

V

VIL

Input LOW Voltage

0.8

V

IIH

Input HIGH Current

VIH = VCC

150

µA

IIL

Input LOW Current

VIL = 0.8V

50

µA

VOL

Output LOW Voltage

SOUT Pin; IOL=1mA

0.55

V

Output High Leakage Current

SOUT = VCC

100

µA

Note:

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

AC Electrical Characteristics(7)

TA = −40°C to +85°C, Channels A and B, unless otherwise stated.

Symbol

Parameter

Condition

Min.

Typ.

Max.

Units

fMAX

Maximum Operating Frequency

Clock: Vout Swing >200mVpk

1.6

GHz

NRZ Data

3.2

Gbps

tpd

Propagation Delay

IN to Q; D[0–9]=0

IN to Q; D[0–9]=1023

/EN to Q: D[0–9]=0; VTH = VCC/2

SDATA to SOUT (D0–D9=Low),

No load

1000

5500

1000

2000

7500

2500

4500

ps

tRANGE

Programmable Range

tpd (max) – tpd (min)

4150

5115

ps

tSKEW

Duty Cycle Skew

tPHL – tPLH Note 8

45

55

%

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