HMC440QS16G_06 HITTITE [Hittite Microwave Corporation], HMC440QS16G_06 Datasheet - Page 9

• Manufacturer Part Number: HMC440QS16G_06
• Description: HBT DIGITAL PHASE-FREQ. DETECTOR, 10 - 1300, MHz w/ 5-BIT COUNTER, 10 - 2800 MHz
• Manufacturer: HITTITE [Hittite Microwave Corporation]

5 - 110
5
Synchronous Programming
For applications which can not tolerate a momentary undefi ned division ratio, which normally occurs while changing
the data bits (A0-A4) at random, synchronous programming can be used. Data is loaded into the counter on every
rising edge of the clock which occurs while the output (OUT) is “HIGH”. The typical minimum setup and hold times are
shown in the table below as a function of frequency. For precision applications, the rising edge of the complementary
output may be used to latch the new data bits (A0-A4), so that all bits are settled before the next load cycle.
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
A0-A4
OUT
OUT
IN
Parameter
t
t
SETUP
HOLD
Where N is the desired division ratio, and f
Programmable Divider Timing Requirements
T
SETTLING MAX
10 - 1300, MHz w/ 5-BIT COUNTER, 10 - 2800 MHz
for Synchronous Programming
v02.0705
Order On-line at www.hittite.com
= N/f
0.5 GHz
CURRENT DATA
200 ps
700 ps
IN
HBT DIGITAL PHASE-FREQ. DETECTOR,
(For Synchronous Programming)
HMC440QS16G
200 ps
300 ps
1 GHz
IN
= Input Frequency (Hz)
t
NEW DATA
SU
Data Load
Rising Edge
200 ps
120 ps
2 GHz
Rising Edge to
Clock New Data
t
/
HOLD
440QS16GE