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Preliminary Specification
PE4274
Product Description
The PE4274 is an SPDT UltraCMOSTM Switch designed for Broadband applications such as CATV, DTV, Multi-Tuner DVR (Digital Video Recorder), Set-top Box, PCTV and Game Boxes. It offers high isolation and low insertion loss in both a powered and a unique unpowered default state. The PE4274 covers a broad frequency range from near DC to beyond 2.2 GHz with a single positive supply and CMOS control. The PE4274 provides a smaller, cost effective, more reliable and manufacturable alternative to mechanical relays in some set-top box applications. The PE4274 is manufactured in Peregrine's patented Ultra Thin Silicon (UTSi(R)) CMOS process, offering the performance of GaAs with the economy and integration of conventional CMOS. 75 Terminated - 2.2 GHz SPDT CATV UltraCMOSTM Switch Featuring - Unpowered Operation Features * Unpowered operational state * All-Off terminated state * CTB performance of 90dBc * High isolation 63 dB at 1 GHz * Low insertion loss: typically 0.5 dB at 5 MHz, 0.8 dB at 1 GHz * CMOS two-pin control * Single +3 volt supply operation * 1 kV ESD * Low current consumption: 8 A
Figure 1. Functional Diagram
Figure 2. Package Type
4x4mm 20 pin QFN
RFCommon
75
RF1
RF2
75
CMOS Control Driver
75
CTRL1 CTRL2
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PE4274
Preliminary Specification
Table 1. Electrical Specifications @ +25 C, VDD = +3 V (ZS = ZL = 75 )
Parameter
Operating Frequency
1
Condition
Minimum
5
Typical
Maximum
2200
Units
MHz
RF1-RFC Insertion Loss (Powered / Unpowered)
5 MHz - 216 MHz 216 MHz - 550 MHz 550 MHz - 806 MHz 806 MHz - 2200 MHz 5 MHz - 216 MHz 216 MHz - 550 MHz 550 MHz - 806 MHz 806 MHz - 2200 MHz 5 MHz - 216 MHz 216 MHz - 550 MHz 550 MHz - 806 MHz 806 MHz - 2200 MHz 5 MHz - 216 MHz 216 MHz - 550 MHz 550 MHz - 806 MHz 806 MHz - 2200 MHz 5 MHz - 1000 MHz 5 MHz - 1000 MHz 1000 MHz 77 & 110 channels; Power Out = 44 dBmV 50% CTRL to 10 / 90 RF 5 MHz - 1000 MHz
0.5 / 1.5 0.5 / 1.5 0.8 / 1.8 1.0 / 2.2 0.7 0.8 1.0 1.3 97 / 95 84 / 80 69 / 69 57 / 56 80 / 82 70 / 71 63 / 65 61 / 65 90 / 73 50 / 39 30 / 24 -90 / -77 2 15
dB
RF2-RFC Insertion Loss
dB
Isolation RF1 or RF2 to RFC (Powered /RF2 Unpowered)
dB
Isolation RF1 to RF22 Input IP23 (Powered/Unpowered) Input IP33 (Powered/Unpowered) Input 1dB Compression3 (Powered/Unpowered) CTB / CSO (Powered/Unpowered) Switching Time Video Feedthrough4
dB
dBm dBm dBm dBc s mVpp
Notes: 1. Device linearity will begin to degrade with input signals below 5 MHz. 2. Isolation at 216 MHz = 75 dB 3. Measured in a 50 system. 4. Measured with a 1 ns risetime, 0/3 V pulse and 500 MHz bandwidth
Copyright (c) Peregrine Semiconductor Corp. 2005 Page 2 of 12
File No. 70/0185-01A UltraCMOSTM RFIC Solutions
PE4274
Preliminary Specification
Figure 3. Pin Configuration (Top View)
18 VSS/GND VDD 19 GND 17 C1 16 C2
Table 3. Absolute Maximum Ratings
Symbol
VDD VI
Parameter/Condition
Power supply voltage Voltage on CTRL input RF power on RFC, RF1, RF2 Terminated/Through Storage temperature Operating temperature ESD voltage (Human Body Model)
Min
-0.3 -0.3
Max
4.0 VDD + 0.3 24/33
Unit
V V dBm C C V
20
GND GND RF1 GND, RF1 Term. GND
1 GND 2 3 4 5 150 150 75 75
15 GND 14 GND 13 RF2
PRF TST TOP VESD
-65 -40 1,000
+150 +85
12 GND, RF2 Term. 11 GND
GND 10
Table 4. DC Electrical Specifications @ 25 C
Parameter
VDD Power Supply IDD Power Supply Current
6
7
8 RFC
GND
GND
GND
9
Min
2.7
Typ
3.0 8
Max
3.3
Unit
V A
4x4mm 20-Lead QFN
Table 2. Pin Descriptions
No.
1 2 31 4 5 6 7 8
1
Name
GND GND RF1 GND GND GND GND RFC GND GND GND GND RF2 GND GND C2 C1 VSS / GND GND VDD GND RF Ground RF Ground RF I/O
Description
(VDD = 3 V, VCNTL = 3 V) Control Voltage High Control Voltage Low 0.7 x VDD 0 VDD 0.3 x VDD V V
RF Ground, RF1 Termination Resistor RF Ground RF Ground RF Ground RF Common RF Ground RF Ground RF Ground RF Ground, RF2 Termination Resistor RF I/O RF Ground RF Ground Control 2 Control 1 Negative Supply Option Digital Ground Supply RF Ground Pad
Electrostatic Discharge (ESD) Precautions When handling this UltraCMOSTM 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. Latch-Up Avoidance Unlike conventional CMOS devices, UltraCMOSTM devices are immune to latch-up. Switching Frequency The PE4274 has a maximum 25 kHz switching rate when the internal negative voltage generator is used (pin 18 = GND). The rate at which the PE4274 can be switched is only limited to the switching time if an external -3 V supply is provided at (pin 18 = VSS).
9 10 11 12 13
1
14 15 162 17 18
2 3
19 20 Pad Notes:
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 V DC requirement is met. 2. Pins 16 and 17 are the CMOS controls that set the four operating states. 3. Connect pin 18 to GND to enable the negative voltage generator. Connect pin 18 to VSS (-3V) to bypass and disable internal -3V supply generator. See "Switching Frequency".
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PE4274
Preliminary Specification
Table 5. Truth Table
VDD
OFF ON ON ON ON Notes: 1. The operation of the PE4274 is not supported or characterized in the C1 = High and C2 = High state.
C1
Low Low Low High High
C2
Low Low High Low High
RFC - RF1
ON OFF OFF ON N/A1
RFC - RF2
OFF OFF ON OFF N/A1
Figure 4. Typical Application Block Diagram The PE4274 provides the high isolation required by FCC part 15.115 regulation between the television antenna and the cable plant. The advantage of the PE4274 is that device isolation / thru performance is maintained when power is removed. This Antenna Input unique feature makes the PE4274 ideal for set-top box and VCR applications. The PE4274 supports signal flow from RFC to RF1 and RF2 termination in the unpowered state; similar to the powered state with C1=High, C2=Low.
80dB 54 - 216MHz 60dB 216 - 550MHz 55dB 550 - 806MHz
PE4274
SPDT
DTV-Tuner
CATV Input
Antenna Input
Power Splitter
Dual Tuner DTV / DVR / Set-top Box
PE4274 SPDT
DTV Tuner
80dB 54 - 216MHz 60dB 216 - 550MHz 55dB 550 - 806MHz
Power Splitter
CATV Input
PE4274 SPDT
DTV-Tuner
Copyright (c) Peregrine Semiconductor Corp. 2005 Page 4 of 12
File No. 70/0185-01A UltraCMOSTM RFIC Solutions
PE4274
Preliminary Specification
RF Splitter Antenna/Cable Input
PVR/VCR/Game Box RF1
PE4274
Tuner/
Modulator
SPDT
RF2
Television
OFF - Pass Through
TV Set / Cable Set-top Box PE4274 SPDT RF2 CATV Input 75W OFF - Terminated Tuner
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PE4274
Preliminary Specification
Typical Performance Data @ 25C (Unless Otherwise Noted) (75 impedance except as indicated)
Figure 5. Insertion Loss - Power On
INSERTION LOSS RFC-RF1 (3V) INSERTION LOSS RFC-RF2 (3V) 0
Figure 6. Insertion Loss - Power Off
INSERTION LOSS RFC-RF1 (0V) 0
Power On Condition
Power Off Condition
-0.5 -0.5
Insertion Loss (dB)
Insertion Loss (dB)
0 500 1000 1500 2000 2500
-1
-1
-1.5
-2
-1.5 -2.5
-2
-3 0 500 1000 1500 2000 2500
Frequency (MHz)
Frequency (MHz)
Figure 7. Isolation - Power On
RFC IN TO RF1 OUT ISOLATION (3V) RFC IN TO RF2 OUT ISOLATION (3V) RF1 OUT TO RF2 OUT ISOLATION (3V) RF2 OUT TO RF1 OUT ISOLATION (3V) -40
Figure 8. Isolation - Power Off
RFC IN TO RF2 OUT ISOLATION (0V) RF2 OUT TO RF1 OUT ISOLATION (0V) -40
Power On Condition
Power Off Condition
-50
-50
Isolation (dB)
-60
Isolation (dB)
-60
-70
-70
-80
-80
-90 0 500 1000 1500 2000 2500
-90 0 500 1000 1500 2000 2500
Frequency (MHz)
Frequency (MHz)
Copyright (c) Peregrine Semiconductor Corp. 2005 Page 6 of 12
File No. 70/0185-01A UltraCMOSTM RFIC Solutions
PE4274
Preliminary Specification
Typical Performance Data @ 25C (Unless Otherwise Noted) (75 impedance except as indicated)
Figure 9. Input IP3 (Measured in a 50 System)
IP3_0V IP3_3V 60 55 50
Figure 10. P_1dB Compression
P_1dB_0V P_1dB_3V 40
(Measured in a 50 System)
Input IP3 for Power On and Power Off States
P_1dB Compression for Power On and Power Off States
35 Max Input Power = 33dBm No 1 dB compression at 33 dBm
P_1dB (dBm)
Input IP3 (dBm)
45 40 35 30 25 20 0 500 1000 1500 2000 2500 3000
30
25
20
15
10 0 500 1000 1500 2000 2500 3000
Frequency (MHz)
Frequency (MHz)
Figure 11. Return Loss: RF1
RF1 TERMINATED (3V) RFC-RF1 CLOSED (0V) RFC-RF1 CLOSED (3V) 0
Figure 12. Return Loss: RF2
RF2 TERMINATED (3V) RFC-RF2 CLOSED (0V) RFC-RF2 CLOSED (3V) 0
RF1 Return Loss for Power On and Power Off Conditions
RF2 Return Loss For Power On and Power Off Conditions
-5
-5
Return Loss (dB)
-15
Return Loss (dB)
0 500 1000 1500 2000 2500
-10
-10
-15
-20
-20
-25
-25
-30
-30 0 500 1000 1500 2000 2500
Frequency (MHz)
Frequency (MHz)
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PE4274
Preliminary Specification
Typical Performance Data @ 25C (Unless Otherwise Noted) (75 impedance except as indicated)
Figure 13. Return Loss: RFC
RFC TERMINATED (0 V) RFC TERMINATED (3V) 0
RFC Return Loss for Power On and Power Off Conditions
-5
Return Loss (dB)
-10
-15
-20
-25
-30 0 500 1000 1500 2000 2500
Frequency (MHz)
Copyright (c) Peregrine Semiconductor Corp. 2005 Page 8 of 12
File No. 70/0185-01A UltraCMOSTM RFIC Solutions
PE4274
Preliminary Specification
Evaluation Kit
The SPDT Switch Evaluation Kit facilitates customer evaluation of the PE4274 SPDT switch. The RF common port is connected through a 75 transmission line to J2. Ports 1 and 2 are connected through 75 transmission lines to J1 and J3. A through line connects F connectors J4 and J5. This transmission line can be used to estimate the PCB loss over the environmental conditions. J6 provides DC and digital inputs to the device. The board is composed of a four metal layer FR4 material with a total thickness of 0.062". The transmission lines are hybrid microstrip/coplanar waveguide with ground plane (28 mil core, 21 mil width, 30 mil gap). The provided jumpers short the control pins to ground for logic low. With the jumper removed the control input rises to VDD for logic high through the 1 M pull up resistor. These resistors will draw several microamps from VDD. They are not required for normal operation.
Figure 14. Evaluation Board Layouts
Figure 15. Evaluation Board Schematic
Vdd Vdd
J4
J5
1M 1M
J6-1
J6-5
J6-9 J6-13
GND
VDD
GND GND
VSS/ GND
C1
C2 GND GND
J1
RF1 GND GND
PE4274 MLPQ 20-Lead 4x4 mm
RF2 GND GND
J3
GND
GND
GND
J2
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GND
RFC
PE4274
Preliminary Specification
Figure 16. Package Drawing
20-lead 4x4 QFN (mm)
Copyright (c) Peregrine Semiconductor Corp. 2005 Page 10 of 12
File No. 70/0185-01A UltraCMOSTM RFIC Solutions
PE4274
Preliminary Specification
Figure 17. Marking Specification
4274 YYWW ZZZZZ
YYWW = Date Code (Year, Work Week) ZZZZZ = Last five digits of PSC Lot Number
Figure 18. Tape and Reel Drawing
Table 6. Ordering Information
Order Code 4274-01 4274-02 4274-00 4274-51 4274-52 Part Marking 4274 4274 PE4274-EK 4274 4274 Description PE4274-20MLP 4x4mm-75A PE4274-20MLP 4x4mm-3000C PE4274-20MLP 4x4mm-EK PE4274G-20MLP 4x4mm-75A PE4274G-20MLP 4x4mm-3000C Package 20-lead 4x4mm QFN 20-lead 4x4mm QFN Evaluation Kit Green 20-lead 4x4mm QFN Green 20-lead 4x4mm QFN Shipping Method 75 units / Tube 3000 units / T&R 1 / Box 75 units / Tube 3000 units / T&R
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PE4274
Preliminary Specification
Sales Offices
United States Peregrine Semiconductor Corp.
9450 Carroll Park Drive San Diego, CA 92121 Tel 1-858-731-9400 Fax 1-858-731-9499
Japan Peregrine Semiconductor K.K.
5A-5, 5F Imperial Tower 1-1-1 Uchisaiwaicho, Chiyoda-ku Tokyo 100-0011 Japan Tel: 011-81-3-3502-5211 Fax: 011-81-3-3502-5213
Europe Peregrine Semiconductor Europe
Batiment Maine 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
China 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
For a list of representatives in your area, please refer to our Web site at: http://www.psemi.com
Data Sheet Identification
Advance Information
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. 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. No patent rights or licenses to any circuits described in this data sheet are implied or granted to any third party. 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.
Preliminary Specification
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).
Peregrine, the Peregrine logotype, Peregrine Semiconductor Corp., and UTSi are registered trademarks of Peregrine Semiconductor Corporation. Copyright (c) 2005 Peregrine Semiconductor Corp. All rights reserved.
Copyright (c) Peregrine Semiconductor Corp. 2005 Page 12 of 12
File No. 70/0185-01A UltraCMOSTM RFIC Solutions

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