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Numéro de référence | PE4304 | ||
Description | RF Digital Attenuator | ||
Fabricant | Peregrine Semiconductor | ||
Logo | |||
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Product Description
The PE4304 is a 75-ohm high-linearity, 6-bit RF Digital Step
Attenuator (DSA) covering a 31.5 dB attenuation range in 0.5
dB steps. The PE4304 provides both a parallel (latched or
direct mode) and serial CMOS control interface, operates on a
single 3-volt supply and maintains high attenuation accuracy
over frequency and temperature. It also has a unique control
interface that allows the user to select an initial attenuation
state at power-up. The PE4304 exhibits very low insertion loss
and low power consumption. This functionality is delivered in a
4x4 mm QFN footprint.
The PE4304 is manufactured on Peregrine’s UltraCMOS™
process, a patented variation of silicon-on-insulator (SOI)
technology on a sapphire substrate, offering the performance
of GaAs with the economy and integration of conventional
CMOS.
Product Specification
PE4304
75 Ω RF Digital Attenuator
6-bit, 31.5 dB, DC – 2.0 GHz
Features
• 75 Ω impedance
• Attenuation: 0.5 dB steps to 31.5 dB
• Low distortion for CATV and multi-carrier
applications
• Flexible parallel and serial programming
interfaces
• Unique power-up state selection
• Positive CMOS control logic
• High attenuation accuracy and linearity
over temperature and frequency
• Very low power consumption
• Single-supply operation
• Packaged in a 20 lead 4x4 mm QFN
Figure 1. Functional Schematic Diagram
Switched Attenuator Array
RF Input
Figure 2. Package Type
4x4 mm -20 Lead QFN
RF Output
Parallel Control 6
Serial Control 3
Power-Up Control 2
Control Logic Interface
Table 1. Electrical Specifications @ +25 °C, VDD = 3.0 V, Zo = 75 Ω
Parameter
Test Conditions
Frequency Minimum
Operation Frequency
Insertion Loss2
Attenuation Accuracy
1 dB Compression3,4
Input IP31,2,4
Return Loss
Any Bit or Bit
Combination
Two-tone inputs up to
+18 dBm
DC ≤ 1.2 GHz
DC ≤ 1.2 GHz
1 MHz ≤ 1.2 GHz
1 MHz ≤ 1.2 GHz
DC ≤ 1.2 GHz
DC
-
-
30
-
10
Switching Speed
50% control to 0.5 dB
of final value
-
Notes: 1. Device Linearity will begin to degrade below 1Mhz
2. Max input rating in Table 2 & Figures on Pages 4 to 6 for data across frequency.
3. Note Absolute Maximum in Table 3.
4. Measured in a 50 Ω system.
Typical
1.4
-
34
52
13
-
Maximum
2000
1.8
±(0.15 + 4% of attenuation
setting)
-
-
-
1
Units
MHz
dB
dB
dBm
dBm
dB
µs
Document No. 70-0066-03 │ www.psemi.com
©2005 Peregrine Semiconductor Corp. All rights reserved.
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Pages | Pages 11 | ||
Télécharger | [ PE4304 ] |
No | Description détaillée | Fabricant |
PE4302 | RF Digital Attenuator | Peregrine Semiconductor |
PE4304 | RF Digital Attenuator | Peregrine Semiconductor |
PE4305 | RF Digital Attenuator | Peregrine Semiconductor |
PE4306 | RF Digital Attenuator | Peregrine Semiconductor |
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