PE94302 Datasheet, PDF (2/8 Pages) Peregrine Semiconductor Corp. – 50 Ω RF Digital Step Attenuator For Rad-Hard Space Applications 6-bit, 31.5 dB, DC - 4.0 GHz

Figure 3. Pin Configuration (Top View)
C16 1
GND 2
RF1 3
GND 4
Data 5
GND 6
CLK ₇
PE94302
21 C8
20 GND
19 RF2
18 GND
17 P/S
16 GND
15 Reset
Table 2. Pin Descriptions
Pin No. Pin Name
Description
1
C16
Attenuation control bit, 16dB
2
GND
Ground connection
3
RF1
RF port (Note 1).
4
GND
Ground connection
5
Data
Serial interface data input
6
GND
Ground connection
7
CLK
Serial interface clock input.
8
LE
Latch Enable input (Note 2).
9
V_DD
Power supply pin.
10
GND
Ground connection
11
RS1
Redundant Signal (note 3)
12
GND
Ground connection
13
RS2
Redundant Signal (Note 3)
14
V_SS
Negative supply voltage (Note 4)
15
Reset Reset (Note 5)
16
GND
Ground connection
17
P/S
Parallel/Serial mode select.
18
GND
Ground connection
19
RF2
RF port (Note 1).
20
GND
Ground connection
21
C8
Attenuation control bit, 8 dB.
22
C4
Attenuation control bit, 4 dB.
23
C2
Attenuation control bit, 2 dB.
24
GND
Ground connection
25
GND
Ground connection
26
GND
Ground connection
27
C1
Attenuation control bit, 1 dB.
28
C0.5
Attenuation control bit, 0.5 dB.
Paddle
GND
Ground connection
Note 1: Both RF ports must be held at 0 V_DC or DC blocked with an
external series capacitor.
2: Latch Enable (LE) has an internal 100 kΩresistor to V_DD.
3: Must be tied to Vdd or GND under normal operation.
4: Must be tied to external supply with V_SS = -V_DD
5: Must be tied to GND under normal operation
©2005-2008 Peregrine Semiconductor Corp. All rights reserved.
Page 2 of 6
PE94302
Product Specification
Table 3. Absolute Maximum Ratings
Symbol
V_DD
V_ss
V_I
T_ST
PIN
V_ESD
Parameter/Conditions
Power supply voltage
Negative Power supply
voltage (-V_DD)
Voltage on any DC input
Storage temperature range
Input power (50Ω)
ESD voltage (Human Body
Model)
Min Max Units
-0.3 4.0
V
-4.0 0.3
V
-0.3
V_DD+
0.3
V
-65 150
°C
24 dBm
500
V
Exceeding absolute maximum ratings may cause
permanent damage. Operation should be restricted to
the limits in the Operating Ranges table. Operation
between operating range maximum and absolute
maximum for extended periods may reduce reliability.
Table 4. Operating Ranges
Parameter
V_DD Power Supply Voltage
V_ss Power Supply Voltage
I_DD Power Supply Current
I_ss Power Supply Current
T_OP Operating temperature
range
Min
2.7
-3.3
-500
-40
Typ Max Units
3.0
3.3
V
-3.0
-2.7
V
250
µA
µA
85
°C
Digital Input High
Digital Input Low
Digital Input Leakage
0.7xV_DD
V
0.3xV_DD
V
1
µA
Exposed Solder Pad Connection
The exposed solder pad on the bottom of the package
must be grounded for proper device operation.
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
rate specified.
Latch-Up Avoidance
Unlike conventional CMOS devices, UltraCMOS™
devices are immune to latch-up.
Switching Frequency
The PE94302 has a maximum 25 kHz switching rate.
Document No. 70-0186-04 │ UltraCMOS™ RFIC Solutions