4256-01 [PSEMI]
75 Ω SPDT CATV UltraCMOS? Switch DC - 3.0 GHz; 75ヘSPDT CATV UltraCMOS⑩开关DC - 3.0 GHz的
| 型号： | 4256-01 |
| 厂家： | 
Peregrine Semiconductor |
| 描述： | 75 Ω SPDT CATV UltraCMOS? Switch DC - 3.0 GHz |
| 文件： | 总8页 (文件大小：348K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Product Specification
PE4256
75 Ω SPDT CATV UltraCMOS™ Switch
DC - 3.0 GHz
Product Description
Features
The PE4256 is an UltraCMOS™ Switch designed for CATV
applications, covering a broad frequency range from DC up to
3000 MHz. This single-supply SPDT switch integrates a two-
pin CMOS control interface. It also provides low insertion loss
with extremely low bias requirements while operating on a
single 3-volt supply. In a typical CATV application, the PE4256
provides for a cost effective and manufacturable solution when
compared to mechanical relays.
• 75 Ω characteristic impedance
• Integrated 75 Ω 0.25 watt terminations
• CTB performance of -90 dBc
• High isolation 65 dB at 1000 MHz
• Low insertion loss: typically 0.5 dB at
5 MHz, 0.9 dB at 1000 MHz
• High input IP3: >50 dBm
• CMOS two-pin control
The PE4256 is manufactured in Peregrine’s patented Ultra
Thin Silicon (UTSi®) CMOS process, offering the performance
of GaAs with the economy and integration of conventional
CMOS.
• Single +3 volt supply operation
• Low current consumption: 8 µA
• Unique all off terminated mode
• 4x4 mm QFN package
Figure 1. Functional Diagram
RFC
Figure 2. Package Type
20-lead 4x4 mm QFN
75
RF1
RF2
75
75
CMOS
Control
Driver
C1 C2
Table 1. Electrical Specifications @ +25 °C, VDD = +3 V (ZS = ZL = 75 Ω)
Parameter
Condition
Minimum
Typical
Maximum
Units
Operating Frequency1
DC
3000
MHz
5 MHz – 250 MHz
0.5
0.8
0.9
1.1
0.6
0.95
1.1
250 MHz – 750 MHz
750 MHz – 1000 MHz
1000 MHz – 2200 MHz
Insertion Loss
Isolation
dB
dB
1.3
5 MHz – 250 MHz
75
65
62
49
80
70
65
52
250 MHz – 750 MHz
750 MHz – 1000 MHz
1000 MHz – 2200 MHz
Input IP22
Input IP32
Input 1dB Compression2
5 MHz - 1000 MHz
5 MHz - 1000 MHz
1000 MHz
80
55
31
dBm
dBm
dBm
50
29
77 & 110 channels;
CTB / CSO
-90
2
dBc
Power Out = 44 dBmV
Switching Time
Video Feedthrough3
50% CTRL to 10/90% RF
5 MHz - 1000 MHz
µs
15
mVpp
Notes:
1. Device linearity will begin to degrade below 1 MHz.
2. Measured in a 50 ꢀ system.
3. Measured with a 1 ns risetime, 0/3 V pulse and 500 MHz bandwidth
Document No. 70-0144-01 │ www.psemi.com
©2005 Peregrine Semiconductor Corp. All rights reserved.
Page 1 of 8
PE4256
Product Specification
Figure 3. Pin Configuration (Top View)
Table 3. Absolute Maximum Ratings
Symbol
Parameter/Condition
Min
Max Unit
VDD
Power supply voltage
-0.3
4.0
V
V
VDD
+
VI
Voltage on CTRL input
-0.3
0.3
PRF
TST
TOP
RF CW power
24
150
85
dBm
°C
GND
GND
1
2
3
4
5
15 GND
GND
Storage temperature
-65
-40
14 GND
Operating temperature
°C
RF1
13 RF2
ESD voltage
75 Ω
75 Ω
VESD
1000
V
(Human Body Model)
GND, RF1 Term.
12 GND, RF2 Term.
11 GND
150 Ω
150 Ω
GND
Table 4. DC Electrical Specifications @ 25 °C
Parameter
Min
Typ
Max
Unit
VDD Power Supply
2.7
3.0
3.3
V
IDD Power Supply Current
(VDD = 3V, VCNTL = 3V)
Table 2. Pin Descriptions
8
20
µA
No.
1
Name
GND
GND
RF1
Description
Control Voltage High
Control Voltage Low
70% VDD
V
V
Ground
30% VDD
2
Ground
RF I/O
31
4
GND
GND
GND
GND
RFC
Ground
Electrostatic Discharge (ESD) Precautions
5
Ground
When handling this UltraCMOS™ device,
6
Ground
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.
7
Ground
81
Common
Ground
9
GND
GND
GND
GND
RF2
10
11
12
131
14
15
162
172
183
19
20
Pad
Notes:
Ground
Ground
Latch-Up Avoidance
Ground
Unlike conventional CMOS devices, UltraCMOS™
devices are immune to latch-up.
RF I/O
GND
GND
C2
Ground
Ground
Switching Frequency
Control 2
Control 1
Negative Supply Option
Ground
The PE4256 has a maximum 25 kHz switching
rate when the internal negative voltage generator
is used (pin 18=GND).
C1
VSS / GND
GND
VDD
GND
Supply
Ground Pad
1.
RF pins 3, 8, and 13 must be at 0 VDC. The RF pins do not require
DC blocking capacitors for proper operation if the 0 VDC requirement
is met.
2.
3.
Pins 16 and 17 are the CMOS controls that set the three operating
states.
Connect pin 18 to GND to enable the on-chip negative voltage
generator. Connect pin 18 to VSS (-3V) to bypass and disable internal
-3V supply generator.
©2005 Peregrine Semiconductor Corp. All rights reserved.
Document No. 70-0144-01 │ UltraCMOS™ RFIC Solutions
Page 2 of 8
PE4256
Product Specification
Table 5. RF Path Truth Table
C1
Low
Low
High
High
C2
Low
High
Low
High
RFC – RF1
OFF
RFC – RF2
OFF
OFF
ON
ON
OFF
N/A1
N/A1
Table 6. Termination Truth Table
C1
Low
Low
High
High
C2
Low
High
Low
High
RFC – 75 ꢀ
RF1 – 75 ꢀ
RF2 – 75 ꢀ
X2
X2
X2
X2
X2
N/A1
N/A1
N/A1
Notes:
1. The operation of the PE4256 is not supported or characterized in the C1=VDD and C2=VDD state.
2. “X” denotes termination enabled.
Document No. 70-0144-01 │ www.psemi.com
©2005 Peregrine Semiconductor Corp. All rights reserved.
Page 3 of 8
PE4256
Product Specification
Figure 4. Evaluation Board Layouts
Peregrine Specification 101/0148~03A
Evaluation Kit
The SPDT Switch Evaluation Kit was designed to
ease customer evaluation of the PE4256 SPDT
switch. The RF common port (RFC) is connected
through a 75 ꢀ transmission line to J2. Port 1 and
Port 2 are connected through 75 ꢀ transmission
lines to J1 and J3. A through transmission line
connects F connectors J4 and J5. This
transmission line can be used to estimate the loss
of the PCB over the environmental conditions
being evaluated.
The board is constructed with four metal layers in
FR4 material with a total thickness of 0.062”. The
transmission lines were designed using a coplanar
waveguide with ground plane (28 mil core, 21 mil
width, 30 mil gap).
J6 provides a means for controlling DC and digital
inputs to the device. The provided jumpers short
the package pin to ground for logic low. When the
jumper is removed, the pin is pulled up to VDD for
logic high.
When the jumper is in place, 3 µA of current will
flow through the 1 Mꢀ pull-up resistor. This extra
current should not be attributed to the device.
Proper PCB design is essential for full isolation
performance. This evaluation board demonstrates
good trace and ground management for minimum
coupling and radiation.
Figure 5. Evaluation Board Schematic
Peregrine Specification 102/0195~02A
©2005 Peregrine Semiconductor Corp. All rights reserved.
Document No. 70-0144-01 │ UltraCMOS™ RFIC Solutions
Page 4 of 8
PE4256
Product Specification
Typical Performance Data from -40°C to +85°C, 75 ꢀ Impedance
Figure 6. Insertion Loss (RFC to RF1 or RF2)
Figure 7. Input to Output Isolation
25C
-40C
85C
RFC - RF1 (RF2 CLOSED)
RFC - RF2 (RF1 CLOSED)
-40
-50
-0.2
-0.4
-0.6
-0.8
-1
-60
-70
-1.2
-1.4
-1.6
-1.8
-80
-90
-100
0
500
1000
1500
2000
2500
3000
0
500
1000
1500
2000
2500
3000
Frequency (MHz)
Frequency (MHz)
Figure 8. Input to Output Isolation
Figure 9. Isolation – RF1 To RF2
RFC - RF1 (RF2 OPEN)
RF1 - RF2 (RF1 Thru)
RF1 - RF2 (RF2 Thru)
RF1 - RF2 (RF1 & 2 OPEN)
RFC - RF2 (RF1 OPEN)
-40
-50
-40
-50
-60
-60
-70
-70
-80
-80
-90
-90
-100
-100
0
500
1000
1500
2000
2500
3000
0
500
1000
1500
2000
2500
3000
Frequency (MHz)
Frequency (MHz)
Document No. 70-0144-01 │ www.psemi.com
©2005 Peregrine Semiconductor Corp. All rights reserved.
Page 5 of 8
PE4256
Product Specification
Typical Performance Data @ +25°C, 75 ꢀ Impedance (unless otherwise noted)
Figure 10. RFC Return Loss
Figure 11. RF1 Return Loss
RFC Terminated
RFC - RF1 CLOSED
RF1 TERMINATED
RFC - RF1 CLOSED
0
-5
0
-5
-10
-15
-20
-25
-30
-35
-10
-15
-20
-25
-30
-35
0
500
1000
1500
2000
2500
3000
0
500
1000
1500
2000
2500
3000
Frequency (MHz)
Frequency (MHz)
Figure 12. RF2 Return Loss
Figure 13. Linearity
(50 ꢀ System Impedance)
RFC - RF2 CLOSED
RF2 TERMINATED
Input IP3
1dB Compression
0
-5
60
50
40
30
20
10
0
-10
-15
-20
-25
-30
-35
0
500
1000
1500
Frequency (MHz)
2000
2500
3000
0
500
1000
1500
2000
2500
3000
Frequency (MHz)
©2005 Peregrine Semiconductor Corp. All rights reserved.
Document No. 70-0144-01 │ UltraCMOS™ RFIC Solutions
Page 6 of 8
PE4256
Product Specification
Figure 14. Package Drawing (mm)
20-lead 4x4 mm QFN
4.00
2.00
INDEX AREA
2.00 X 2.00
- B -
0.25
C
- A -
0.10
0.08
C
C
SEATING
PLANE
- C -
EXPOSED PAD &
TERMINAL PADS
0.435
2.00
1.00
6
10
0.18
5
1
11
DETAIL A
15
1. DIMENSION APPLIES TO METALLIZED TERMINAL AND IS MEASURED
BETWEEN 0.25 AND 0.30 FROM TERMINAL TIP.
20
16
EXPOSED PAD
2
2. COPLANARITY APPLIES TO THE EXPOSED HEAT SINK SLUG AS WELL
AS THE TERMINALS.
DETAIL A
0.23
0.10
C A B
1
Figure 15. Tape and Reel Drawing
Table 7. Ordering Information
Order Code
4256-01
Part Marking
4256
Description
Package
Shipping Method
75 units / Tube
3000 units / T&R
1 / Box
PE4256-20QFN 4x4 mm-75A
PE4256-20QFN 4x4 mm-3000C
PE4256-20QFN 4x4 mm-EK
PE4256G-20QFN 4x4 mm-75A
PE4256G-20QFN 4x4 mm-3000C
20-lead 4x4 mm QFN
20-lead 4x4 mm QFN
Evaluation Kit
4256-02
4256
4256-00
PE4256-EK
4256
4256-51
Green 20-lead 4x4 mm QFN
Green 20-lead 4x4 mm QFN
75 units / Tube
3000 units / T&R
4256-52
4256
Document No. 70-0144-01 │ www.psemi.com
©2005 Peregrine Semiconductor Corp. All rights reserved.
Page 7 of 8
PE4256
Product Specification
Sales Offices
United States
Japan
Peregrine Semiconductor Corp.
9450 Carroll Park Drive
San Diego, CA 92121
Peregrine Semiconductor K.K.
5A-5, 5F Imperial Tower
1-1-1 Uchisaiwaicho, Chiyoda-ku
Tokyo 100-0011 Japan
Tel 1-858-731-9400
Fax 1-858-731-9499
Tel: 011-81-3-3502-5211
Fax: 011-81-3-3502-5213
Europe
China
Peregrine Semiconductor Europe
Bâtiment Maine
Peregrine Semiconductor
28G, Times Square,
No. 500 Zhangyang Road,
Shanghai, 200122, P.R. China
Tel: 011-86-21-5836-8276
Fax: 011-86-21-5836-7652
13-15 rue des Quatre Vents
F- 92380 Garches, France
Tel: 011- 33-1-47-41-91-73
Fax : 011-33-1-47-41-91-73
For a list of representatives in your area, please refer to our Web site at: www.psemi.com
Data Sheet Identification
Advance Information
The information in this data sheet is believed to be reliable.
However, Peregrine assumes no liability for the use of this
information. Use shall be entirely at the user’s own risk.
The product is in a formative or design stage. The data
sheet contains design target specifications for product
development. Specifications and features may change in
any manner without notice.
No patent rights or licenses to any circuits described in this
data sheet are implied or granted to any third party.
Preliminary Specification
Peregrine’s products are not designed or intended for use in
devices or systems intended for surgical implant, or in other
applications intended to support or sustain life, or in any
application in which the failure of the Peregrine product could
create a situation in which personal injury or death might occur.
Peregrine assumes no liability for damages, including
consequential or incidental damages, arising out of the use of
its products in such applications.
The data sheet contains preliminary data. Additional data
may be added at a later date. Peregrine reserves the right
to change specifications at any time without notice in order
to supply the best possible product.
Product Specification
The data sheet contains final data. In the event Peregrine
decides to change the specifications, Peregrine will notify
customers of the intended changes by issuing a DCN
(Document Change Notice).
The Peregrine name, logo, and UTSi are registered trademarks
and UltraCMOS is a trademark of Peregrine Semiconductor
Corp.
©2005 Peregrine Semiconductor Corp. All rights reserved.
Document No. 70-0144-01 │ UltraCMOS™ RFIC Solutions
Page 8 of 8
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