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Electrical Characteristics

Parameter
Description
V
Output HIGH Voltage
OH
V
Output LOW Voltage
OL
V
Input HIGH Voltage
IH
(REF and FB inputs only)
V
Input LOW Voltage
IL
(REF and FB inputs only)
V
Three Level Input HIGH
IHH
Voltage (Test, FS)
V
Three Level Input MID
IMM
Voltage (Test, FS)
V
Three Level Input LOW
ILL
Voltage (Test, FS)
I
Input HIGH Leakage Current
IH
(REF and FB inputs only)
I
Input LOW Leakage Current
IL
(REF and FB inputs only)
I
Input HIGH Current
IHH
(Test, FS)
I
Input MID Current
IMM
(Test, FS)
I
Input LOW Current
ILL
(Test, FS)
I
Output Short Circuit
OS
[5]
Current
I
Operating Current Used by
CCQ
Internal Circuitry
I
Output Buffer Current per
CCN
[6]
Output Pair
PD
Power Dissipation per
[7]
Output Pair
Notes
4. These inputs are normally wired to VCC, GND, or left unconnected (actual threshold voltages vary as a percentage of VCC). Internal termination resistors hold
unconnected inputs at VCC/2. If these inputs are switched, the function and timing of the outputs may glitch and the PLL may require an additional tLOCK time
before all data sheet limits are achieved.
5. Tested one output at a time, output shorted for less than one second, less than 10% duty cycle. Room temperature only. CY7B9920 outputs are not short circuit
protected.
6. Total output current per output pair is approximated by the following expression that includes device current plus load current:
CY7B9910:
ICCN = [(4 + 0.11F) + [((835 – 3F)/Z) + (.0022FC)]N] x 1.1
CY7B9920:
ICCN = [(3.5+.17F) + [((1160 – 2.8F)/Z) + (.0025FC)]N] x 1.1
Where
F = frequency in MHz
C = capacitive load in pF
Z = line impedance in ohms
N = number of loaded outputs; 0, 1, or 2
FC = F < C.
7. Total power dissipation per output pair is approximated by the following expression that includes device power dissipation plus power dissipation due to the load circuit:
CY7B9910:
PD = [(22 + 0.61F) + [((1550 – 2.7F)/Z) + (.0125FC)]N] x 1.1
CY7B9920:
PD = [(19.25+ 0.94F) + [((700 + 6F)/Z) + (.017FC)]N] x 1.1.See
Document Number: 38-07135 Rev. *B
Over the Operating Range
Test Conditions
V
= Min, I
= –16 mA
CC
OH
V
= Min, I
=–40 mA
CC
OH
V
= Min, I
= 46 mA
CC
OL
V
= Min, I
= 46 mA
CC
OL
Min ≤ V
≤ Max
CC
[4]
Min ≤ V
≤ Max
CC
[4]
Min ≤ V
≤ Max
CC
[4]
V
= Max, V
= Max
CC
IN
V
= Max, V
= 0.4V
CC
IN
V
= V
IN
CC
V
= V
/2
IN
CC
V
= GND
IN
V
= Max, V
CC
OUT
°
= GND (25
C only)
V
= V
= Max All
CCN
CCQ
Input
Selects Open
V
= V
= Max
CCN
CCQ
I
= 0 mA
OUT
Input Selects Open, f
V
= V
= Max
CCN
CCQ
I
= 0 mA
OUT
Input Selects Open, f
note 3
for variable definition.
CY7B9910
Min
2.4
2.0
–0.5
V
– 1V
CC
V
/2 –
V
CC
500 mV
500 mV
0.0
–500
–50
–200
–250
Com'l
Mil/Ind
MAX
MAX
CY7B9910
CY7B9920
CY7B9920
Max
Min
Max
V
–0.75
CC
0.45
0.45
V
V
–
V
CC
CC
CC
1.35
0.8
–0.5
1.35
V
V
– 1V
V
CC
CC
CC
/2 +
V
/2 –
V
/2 +
CC
CC
CC
500 mV
500 mV
1.0
0.0
1.0
10
10
–500
200
200
50
–50
50
–200
N/A
85
85
90
90
14
19
[5]
78
104
Page 4 of 11
Unit
V
V
V
V
V
V
V
μA
μA
μA
μA
μA
mA
mA
mA
mW
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