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| 型号： | 4304-52 |
| 厂商： | Peregrine Semiconductor |
| 文件页数： | 1/11页 |
| 文件大小： | 0K |
| 描述： | IC DSA 6BIT 75 OHM 20-QFN |
| 标准包装： | 1 |
| 系列： | UltraCMOS™ |
| 衰减值： | 31.5dB |
| 容差： | ±0.15dB |
| 频率范围： | 0 ~ 2GHz |
| 阻抗： | 75 欧姆 |
| 封装/外壳： | 20-WFQFN 裸露焊盘 |
| 其它名称： | 1046-1031-6 |
Product Specification
PE4304
75 ? RF Digital Attenuator
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.
Figure 1. Functional Schematic Diagram
Switched Attenuator Array
6-bit, 31.5 dB, DC – 2.0 GHz
Features
? 75 ? 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 2. Package Type
4x4 mm 20-Lead QFN
RF Input
Parallel Control
6
RF Output
Serial Control
Power-Up Control
3
2
Control Logic Interface
Table 1. Electrical Specifications @ +25 °C, V DD = 3.0 V, Z o = 75 ?
Parameter
Test Conditions
Frequency
Minimum
Typical
Maximum
Units
Operation Frequency
DC
2000
MHz
Insertion Loss
2
DC ≤ 1.2 GHz
-
1.4
1.8
dB
Attenuation Accuracy
1 dB Compression 3,4
Input IP3 1,2,4
Any Bit or Bit
Combination
Two-tone inputs up to
+18 dBm
DC ≤ 1.2 GHz
1 MHz ≤ 1.2 GHz
1 MHz ≤ 1.2 GHz
-
30
-
-
34
52
±(0.15 + 4% of attenuation
setting)
-
-
dB
dBm
dBm
Return Loss
Switching Speed
50% control to 0.5 dB
of final value
DC ≤ 1.2 GHz
10
-
13
-
-
1
dB
μ s
Notes: 1.
2.
3.
4.
Device Linearity will begin to degrade below 1Mhz
Max input rating in Table 3 & Figures on Pages 4 to 6 for data across frequency.
Note Absolute Maximum in Table 3.
Measured in a 50 ? system.
Document No. 70-0066-04 │ www.psemi.com
?2003-2006 Peregrine Semiconductor Corp. All rights reserved.
Page 1 of 11
Logo updated under non-rev change. Peregrine products are protected under one or more of the following U.S. Patents: http://patents.psemi.com
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