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| PE43704DS Datasheet, PDF (5/20 Pages) Peregrine Semiconductor – UltraCMOS® RF Digital Step Attenuator, 7-bit, 31.75 dB with Optional VssEXT Bypass Mode 9 kHz - 8 GHz | |||
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PE43704
Product Specification
Figure 3. Pin Configuration (Top View)
Table 4. Pin Descriptions
Pin # Pin Name
Description
1
2
3
4
5, 6,
8-17, 19
7
18
20
21
22
23
24
25
26
27
28
29
30
31
32
Pad
N/C
No connect
VDD
Supply voltage
P/S
Serial/parallel mode select
A0
Address bit A0 connection
GND Ground
RF11
RF1 port (RF input)
RF21
RF2 port (RF output)
VssEXT2 External Vss negative voltage control
A2
Address bit A2 connection
A1
Address bit A1 connection
LE
Serial interface latch enable input
CLK
Serial interface clock input
SI
Serial interface data input
C16 (D6)3 Parallel control bit, 16 dB
C8 (D5)3 Parallel control bit, 8 dB
C4 (D4)3 Parallel control bit, 4 dB
C2 (D3)3 Parallel control bit, 2 dB
C1 (D2)3 Parallel control bit, 1 dB
C0.5 (D1)3 Parallel control bit, 0.5 dB
C0.25 (D0)3 Parallel control bit, 0.25 dB
GND Exposed pad: ground for proper operation
Notes: 1. RF pins 7 and 18 must be at 0V DC. The RF pins do not require DC
blocking capacitors for proper operation if the 0V DC
requirement is met
2. Use VssEXT (pin 20) to bypass and disable internal
negative voltage generator. Connect VssEXT (pin 20) to GND (VssEXT = 0V)
to enable internal negative voltage generator
3. Ground C0.25, C0.5, C1 C2, C4, C8, C16 if not in use
Document No. DOC-16514-6 | www.psemi.com
Table 5. Operating Ranges
Parameter
Symbol Min Typ Max Unit
Supply voltage (normal
mode, VssEXT = 0V)1
VDD
Supply voltage (bypass
mode, VssEXT = -3.4V,
VDD⥠3.4V for full spec.
VDD
compliance)2
Negative supply voltage
(bypass mode)2
VssEXT
Supply current (normal
mode, VssEXT = 0V)1
IDD
Supply current (bypass
mode, VssEXT = -3.4V)2
IDD
Negative supply current
(bypass mode, VssEXT =
ISS
-3.4V)2
Digital input high
Digital input low
Digital input current
RF input power, CW3
9 kHz < 50 MHz
50 MHz ⤠8 GHz
VIH
VIL
ICTRL
PMAX,CW
RF input power, pulsed4
9 kHz < 50 MHz PMAX,PULSED
50 MHz ⤠8 GHz
Operating temperature
range
TOP
2.3
2.7
-3.6
-40
1.17
-0.3
-40
5.5 V
3.4 5.5 V
-2.4 V
130 200 μA
50 80 μA
-16
μA
3.6 V
0.6 V
15 μA
see
Fig. 4 dBm
+28 dBm
see
Fig. 4 dBm
+31 dBm
25 +85 °C
Notes:
1. Normal mode: connect VssEXT (pin 20) to GND (VssEXT = 0V) to
enable internal negative voltage generator
2. Bypass mode: use VssEXT (pin 20) to bypass and disable internal
negative voltage generator
3. 100% duty cycle, all bands, 50â¦
4. Pulsed, 5% duty cycle of 4620 µs period, 50â¦
©2012-2013 Peregrine Semiconductor Corp. All rights reserved.
Page 5 of 20
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