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SY89855U Datasheet(PDF) 4 Page - Micrel Semiconductor

Part No. SY89855U
Description  Precision Low Power Differential LVPECL 4:1 MUX with 1:2 Fanout and Internal Termination
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Maker  MICREL [Micrel Semiconductor]
Homepage  http://www.micrel.com
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SY89855U Datasheet(HTML) 4 Page - Micrel Semiconductor

 
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Micrel, Inc.
SY89855U
February 2007
4
M9999-022007-B
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
LVPECL Output Current (IOUT)
Continuous................................................. ±50mA
Surge ....................................................... ±100mA
Termination Current
Source or Sink Current on VT .................. ±100mA
Input Current
Source or Sink Current on IN, /IN.............. ±50mA
Current (VREF-AC)
Source or Sink Current on VREF-AC ............... ±2mA
Lead Temperature (soldering, 20sec.) ...............260°C
Storage Temperature (Ts) ................ –65°C to +150°C
Operating Ratings
(2)
Supply Voltage (VCC) .....................+2.375V to +2.625V
.....................................................+3.0V to +3.6V
Ambient Temperature (TA)....................–40°C to +85°C
Package Thermal Resistance
(3)
MLF
® JA)
Still-Air......................................................35°C/W
500lfpm ....................................................28°C/W
MLF
® JB)
Junction-to-Board.....................................16°C/W
DC Electrical Characteristics
(4)
TA = –40°C to +85°C, unless otherwise noted.
Symbol
Parameter
Condition
Min
Typ
Max
Units
VCC
Power Supply Voltage
VCC = 2.5V
VCC = 3.3V
2.375
3.0
2.5
3.3
2.625
3.6
V
V
ICC
Power Supply Current
No load, max. VCC.
65
85
mA
RIN
Input Resistance
(IN-to-VT)
45
50
55
RDIFF_IN
Differential Input Resistance
(IN-to-/IN, /IN-to-VT)
90
100
110
VIH
Input High Voltage
(IN, /IN)
VCC– 1.2
VCC
V
VIL
Input Low Voltage
(IN, /IN)
0
VIH– 0.1
V
VIN
Input Voltage Swing
(IN-to-/IN)
See Figure 1a.
100
1700
mV
VDIFF_IN
Differential Input Voltage Swing
|
IN - /IN |
See Figure 1b.
200
mV
VT_IN
Maximum Input Voltage
(IN-to-VT)
1.28
V
VREF-AC
Output Reference Voltage
VCC– 1.3
VCC– 1.2
VCC– 1.1
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. Package thermal resistance assumes exposed pad is soldered (or equivalent) to the devices most negative potential on the PCB.
θJA and ψJB
values are determined for a 4-layer board in still-air, unless otherwise stated.
4. The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established.


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