IDTQS5LV919-133Q IDT, Integrated Device Technology Inc, IDTQS5LV919-133Q Datasheet - Page 9

• Manufacturer Part Number: IDTQS5LV919-133Q
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: PLL Clock Driverr

Specifications of IDTQS5LV919-133Q

• Number Of Elements: 1
• Pll Input Freq (min): 2.5MHz
• Pll Input Freq (max): 100MHz
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: -40C to 85C
• Package Type: QSOP
• Output Frequency Range: 5 to 133MHz
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Operating Temperature Classification: Industrial
• Pin Count: 28
• Lead Free Status / Rohs Status: Not Compliant

QS5LV919 System Level Testing Functionality
in low frequency "test mode". In test mode (with FREQ_SEL HIGH), the 2Q
output is inverted from the selected SYNC input, and the Q outputs are divide-
by-2 (negative edge triggered) of the SYNC input, and the Q/2 output is divide-
by-4 (negative edge triggered). With FREQ_SEL LOW the 2Q output is divide-
by-2 of the SYNC, the Q outputs divide-by-4, and the Q/2 output divide-by-8.
QS5LV919
3.3V LOW SKEW CMOS PLL CLOCK DRIVER WITH INTEGRATED LOOP FILTER
When the PLL_EN pin is LOW, the PLL is bypassed and the QS5LV919 is
Figure 3. Multiprocessing Application Using the QS5LV919 for Frequency Multiplication and Low Board-to-Board skew
at point of use
DISTRIBUTE
CLOCK @ 2f
CLOCK @ f
SOUR CE
SYSTEM
CLOCK
CLOCK
@ f
QS5LV919
QS5LV919
PLL
PLL
2f
2f
QS5LV919
PLL
MEMO RY
CARDS
CM MU
CM MU
CM MU
CM MU
2f
CPU
CPU
9
These relationships can be seen in the block diagram. A recommended test
configuration would be to use SYNC0 or SYNC1 as the test clock input, and tie
PLL_EN and REF_SEL together and connect them to the test select logic.
below, and the QS5LV919 cannot lock onto that low of an input frequency. In
the test mode described above, any test frequency test can be used.
This functionality is needed since most board-level testers run at 1 MHz or
CONTROL
MEMO RY
CM MU
CM MU
CM MU
CM MU
CM MU
CM MU
at point of use
CLOCK @ 2f
CARD
CARD
CPU
CPU
INDUSTRIAL TEMPERATURE RANGE