sy55856u Micrel Semiconductor, sy55856u Datasheet - Page 7

• Manufacturer Part Number: sy55856u
• Description: Sy55856u 2.5v/3.3v 2.5ghz Differential 2-channel Precision Cml Delay Line
• Manufacturer: Micrel Semiconductor

Micrel, Inc.
V
Note 1.
Note 2.
Note 3.
Note 4.
Note 5.
V
Note 6.
M9999-021908
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Symbol
V
I
CC
Symbol
V
V
V
V
CC
V
Symbol
V
V
V
V
V
V
(Swing)
R
CC
DC ELECTRICAL CHARACTERISTICS
CC
VT INPUTS DC ELECTRICAL CHARACTERISTICS
ILVL
IHVT
ILVT
TCL
CML DC ELECTRICAL CHARACTERISTICS
IST
ID
IH
IL
OH
OL
OUT
OUT
= 2.3V to 3.6V; GND = 0V; T
= 2.3V to 3.6V; GND = 0V; T
DC parameters are guaranteed after thermal equilibrium has been established.
The LVL input determines the voltage switching threshold that differentiates logic high from logic low for the V
DELAY_SEL, and CINV. LVL may be driven to V
logic high. Also, as shown in Figure 3, the LVL input internally clamps at V
maximum of
V
V
between V
V
V
V
immunity purposes is 2 × V
400mV swing is available in a 50Ω environment. Refer to “CML Termination” figures for more details.
V
T
SW
IST
IST
OUT(SWING)
CC
inputs are S0, S1, S2, DELAY_SEL, and CINV.
Differential Input Voltage
Input HIGH Voltage
Input LOW Voltage
Output HIGH Voltage
Output LOW Voltage
Output Voltage Swing
Output Source Impedance
(CLK_OUT, /CLK_OUT and
DATA_OUT, /DATA_OUT)
Power Supply Voltage
Power Supply Current
Analog Input
V
V
Input Switching Threshold
Differential Voltage
Threshold Clamp Voltage
+
is the voltage difference needed to guarantee a stable logic level. Logic high must be at least V
below V
is the threshold switching voltage. It is equal to the voltage at the LVL pin, when this voltage is above V
2
T
T
GND
Input High Voltage
Input High Voltage
TCL



Parameter
Parameter
Parameter
SW
=
is defined as the swing on one output of a differential pair, that is |V
(min) and V
V
. Thus, the minimum input swing on a given V
CC
2
(2)



and V
(5)
TCL
TCL
OUT(SWING)
(6)
(3,4)
(3,4)
.
(max) when the Voltage at the LVL pin is below V
A
A
= –40°C to +85°C
= –40°C to +85°C
Min.
. Actual voltage levels and differential swing will depend on customer termination scheme. Typically, a
2.3
—
V
V
T
CC
V
CC
A
0.650
SW
Min.
100
= –40
1.6
1.5
Typ.
V
Min.
–0.040
—
40
100
0.0
1.2
–1.00
—
—
TCL
CC
+ 0.1
, but this is not useful, as the V
°
C
(1)
Max.
140
3.6
T
input pin, that is, |V
7
Min.
2.3
—
V
V
T
CC
CC
A
0.800
0.400
Typ.
TCL
50
—
—
—
–0.010
–0.800
= +25
Typ.
Typ.
115
50
—
—
—
—
—
. If LVL is left unconnected, the V
TCL
OH
°
C
T
IHVT
(max).
- V
Max.
inputs could then not get high enough to reliably indicate
140
3.6
OL
- V
| on one pin. The swing for common mode noise
ILVT
Min.
|, must be at least 2×V
2.3
—
V
T
IST
V
V
V
CC
A
IH
SW
Max.
1.00
CC
V
V
= +85
Max.
above V
Typ.
—
—
60
V
1.4
CC
CC
–0.65
–0.1
—
—
—
CC
– 0.1
- 0.1
TCL
T
°
C
T
inputs S0, S1, S2,
SW
(max). V
Max.
inputs will switch at about the
140
3.6
. Logic low must be at most
IST
Unit
.
mV
SW
Ω
V
V
V
V
V
Unit
mA
V
is some value
50Ω Environment
Condition
SuperLite™
Unit
Condition
No Load
No Load
No Load
mV
SY55856U
No Load
V
V
V
V