FRACTIONAL-N SYNTHESIZER WITH INTEGRATED VCO, 11.5 - 12.5 GHz ( 14 Page)
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
12 - 35
FRACTIONAL-N SYNTHESIZER WITH
INTEGRATED VCO, 11.5 - 12.5 GHz
1, 9 - 13, 22, 36
No Connection. These pins may be connected to RF/DC ground.
Performance will not be affected.
2 - 4, 7, 37, 39
These pins must be connected to RF/DC Ground
These pins and package bottom
must be connected to RF/DC Ground
+5V Power Supply for VCO
Control Voltage Input. Modulation port bandwidth
dependent on drive source impedance.
AC Ground. This pin must be connected to
an external capacitor to ground.
Analog Power supply pin for the RF Section.
A decoupling capacitor to the ground plane should
be placed as close as possible to this pin. Nominally 3.3V
+5V Power Supply for charge pump digital section
+5V Power Supply for the charge pump analog section
Charge pump output
Analog Power supply for the phase frequency detector, Nominally 3.3V
External bypass decoupling for precision bias circuits,
1.920V ±20 mV is generated internally
Analog Power supply for analog ref paths, Nominally 3.3V
Reference input (Negative or AC coupled to GND)
Reference input (Positive)
Ref path supply
Digital supply for Substrate, Nominally 3.3V
Serial port latch enable input
Serial port clock input
Serial port data input
Power supply pin for internal digital circuitry. Nominally 3.3V
Power Supply for digital I/O driver
Lock Detect, Main Serial Data Output
or VCO Serial Port Data Out
Analog Power Supply for Prescaler, Nominally 3.3V
Digital Power Supply for M-Counter, Nominally 3.3V
RF output (AC coupled).
 This pin is not connected internally, however, this pin must be connected to GND to maintain product family pin for pin compatibility.
 This pin is not connected internally, however, this pin must be connected to Vcc to maintain product family pin for pin compatibility.
 BIAS ref voltage (pin 20) cannot drive an external load, and must be measured with a 10 GOhm meter such as Agilent 34410A; a typical
10 Mohm DVM will read erroneously.
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