PE9312 Datasheet, PDF (2/7 Pages) Peregrine Semiconductor Corp. – 1500 MHz Low Power UltraCMOS™ Divide-by-4 Prescaler Rad hard for Space Applications

Figure 3. Pin Configuration
VDD
1
IN
2
N/C
3
GND 4
PE9312
8 _GND
7 _OUT
6 _NC
5 GND
Table 2. Pin Descriptions
Pin No.
1
2
3
4
Pin
Name
V_DD
IN
NC
GND
Description
Power supply pin. Bypassing is required
(eg 1000 pF & 100 pF).
Input signal pin. Should be coupled with a
capacitor (eg 1000 pF).
No connection. This pin should be left
open.
Ground pin. Ground pattern on the board
should be as wide as possible to reduce
ground impedance.
5
GND Ground pin.
6
NC
No connection. This pin should be left
open.
Divided frequency output pin. This pin
7
OUT should be coupled with a capacitor
(eg 1000 pF).
8
GND Ground Pin.
Table 3. Absolute Maximum Ratings
Symbol Parameter/Conditions Min Max Units
V_DD
Supply voltage
4.0
V
Pin
Input Power
15 dBm
V_IN
Voltage on input
-0.3
V_DD
+0.3
V
T_ST
Storage temperature range -65 150 °C
T_OP
Operating temperature
range
-40 85
°C
V_ESD
ESD voltage (Human Body
Model, MIL-STD 883)
1000
V
Absolute Maximum Ratings are those values
listed in the above table. Exceeding these values
may cause permanent device damage.
Functional operation should be restricted to the
limits in the DC Electrical Specifications table.
Exposure to absolute maximum ratings for
extended periods may affect device reliability.
©2005 Peregrine Semiconductor Corp. All rights reserved.
Page 2 of 7
PE9312
Product Specification
Electrostatic Discharge (ESD) Precautions
When handling this UltraCMOS™ device, observe
the same precautions that you would use with
other ESD-sensitive devices. Although this device
contains circuitry to protect it from damage due to
ESD, precautions should be taken to avoid
exceeding the rating specified in Table 3.
Latch-Up Avoidance
Unlike conventional CMOS devices, UltraCMOS™
devices are immune to latch-up.
Device Functional Considerations
The PE9312 divides an input signal, up to a
frequency of 1500 MHz, by a factor of four thereby
producing an output frequency at a quarter of the
input frequency. To work properly at higher
frequency, the input and output signals (pins 2 &
7) must be AC coupled via an external capacitor,
as shown in the test circuit in Figure 8. The input
may be DC coupled for low frequency operation
with care taken to remain within the specified DC
input range for the device.
The ground pattern on the board should be made
as wide as possible to minimize ground
impedance. See Figure 7 for a layout example.
Document No. 70-0119-02 │ UltraCMOS™ RFIC Solutions