SY88973BL 查看數據表（PDF） - Micrel

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SY88973BL

3.3V 3.2Gbps CML Low Power Limiting Post Amplifier with TTL LOS

Micrel 

Micrel, Inc.

SY88973BL

AC Electrical Characteristics(4)

VCC = 3.0V to 3.6V; TA = –40°C to +85°C, RLOAD = 50Ω to VCC; typical values at VCC = 3.3V, TA = 25°C.

Symbol Parameter

Condition

Min Typ Max Units

PSRR Power Supply Rejection Ratio

35

dB

tr, tf

Output Rise/Fall Times

(20% to 80%)

Note 7

60

120

ps

tJITTER

Deterministic Random

Note 8

15

psPP

5

psRMS

VID

Differential Input Voltage Swing

10

1800 mVPP

VOD

Differential Output Voltage Swing Note 7

700 800

950

mVPP

HYS

LOS Hysteresis

Note 9

2

4.6

8

dB

tOFF

LOS Release Time

0.1

0.5

µs

tON

LOS Assert Time

0.2

0.5

µs

VSR

LOS Sensitivity Range

Note 10

10

35

mVPP

B–3dB

–3dB Bandwidth

2.0

GHz

AV(Diff)

Differential Voltage Gain

32

38

dB

S21

Single-Ended Small-Signal Gain

26

32

dB

Notes:

7. Amplifier in limiting mode. Input is a 200MHz square wave, tr < 300ps.

8. Deterministic jitter measured using 2.488Gbps K28.5 pattern, VID = 10mVPP. Random jitter measured using 2.488Gbps K28.7 pattern, VID =

10mVPP.

9. Electrical signal.

10. This is the detectable range of input amplitudes that can assert LOS. The input amplitude to de-assert LOS is 2–8dB higher than the assert

amplitude. See “Typical Operating Characteristics” for graphs showing how to choose a particular VLOSLVL or RLOSLVL for a particular LOS assert,

and its associated de-assert amplitude. If increased LOS sensitivity and hysteresis are required, an application note entitled: “Notes on Sensitivity

and Hysteresis in Micrel Post Amplifiers” is available at http://www.micrel.com/_PDF/HBW/App-Notes/an-45.pdf.

February 2007

6

M9999-020207-A

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

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