CY7B9911
RoboClock+™
Document Number: 38-07209 Rev. *C
Page 4 of 13
Test Mode
The TEST input is a three level input. In normal system
operation, this pin is connected to ground, enabling the
CY7B9911 to operate as explained in the previous section (for
testing purposes). Any of the three level inputs can have a
removable jumper to ground or be tied LOW through a 100
Ω
resistor. This enables an external tester to change the state of
these pins.
If the TEST input is forced to its MID or HIGH state, the device
operates with its internal phase locked loop disconnected, and
input levels supplied to REF directly control all outputs. Relative
output to output functions are the same as in normal mode.
In contrast with normal operation (TEST tied LOW), all outputs
function based only on the connection of their own function
select inputs (xF0 and xF1) and the waveform characteristics of
the REF input.
Maximum Ratings
Operating outside these boundaries may affect the performance
and life of the device. These user guidelines are not tested.
Storage Temperature ................................. –65
°C to +150°C
Ambient Temperature with
Power Applied ............................................ –55
°C to +125°C
Supply Voltage to Ground Potential................–0.5V to +7.0V
DC Input Voltage ............................................–0.5V to +7.0V
Output Current into Outputs (LOW)............................. 64 mA
Static Discharge Voltage............................................ >2001V
(per MIL-STD-883, Method 3015)
Latch Up Current ..................................................... >200 mA
Figure 1. Typical Outputs with FB Connected to a Zero-Skew Output[4]
FB Input
REF Input
– 6t U
– 4t U
– 3t U
– 2t U
– 1t U
0tU
+1t U
+2t U
+3t U
+4t U
+6t U
DIVIDED
INVERT
LM
LH
(N/A)
ML
(N/A)
MM
(N/A)
MH
(N/A)
HL
HM
LL/HH
HH
3Fx
4Fx
(N/A)
LL
LM
LH
ML
MM
MH
HL
HM
HH
(N/A)
(N/A)
(N/A)
1Fx
2Fx
Note
4. FB connected to an output selected for “zero” skew (i.e., xF1 = xF0 = MID).
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