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U2795B 데이터시트 PDF




ATMEL Corporation에서 제조한 전자 부품 U2795B은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 U2795B 자료 제공

부품번호 U2795B 기능
기능 2.5-GHz Double balanced Mixer
제조업체 ATMEL Corporation
로고 ATMEL Corporation 로고


U2795B 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




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U2795B 데이터시트, 핀배열, 회로
Features
Supply-voltage Range: 2.7 V to 5.5 V
Single-ended Output, no Balun Required
Single-ended Input for RF and LO
Excellent Isolation Characteristics
Power-down Mode
IP3 and Compression Point Programmable
2.5-GHz Operating Frequency
Benefits
Reduced System Costs as only Few External Component (no Balun) are Required
Small Package
Very Low Current Consumption
Easy to Use
Electrostatic sensitive device.
Observe precautions for handling.
Description
The U2795B is a 2.5-GHz mixer for WLAN and RF telecommunications equipment,
e.g., DECT and PCN. The IC is manufactured using Atmel's advanced bipolar technol-
ogy. A double-balanced approach was chosen to assure good isolation characteristics
and a minimum of spurious products. The input and output are single-ended, and their
characteristics are programmable. No output transformer or balun is required.
Figure 1. Block Diagram
2
RFi
VS
R2
5 IFo
3
P
R1
VH
4 So
VR
VH Voltage
regulator
8 PD
2.5-GHz
Double-
balanced
Mixer
U2795B
7
LO i
61
GND
VS
Rev. 4654A–CELL–01/03
1




U2795B pdf, 반도체, 판매, 대치품
Electrical Characteristics
VS = 3 V, fLOi = 1 GHz, IF = 900 MHz, RF = 100 MHz, RP = ¥, system impedance Zo = 50 W, Tamb = 25°C, RT = 56 W
reference point Pin 6, unless otherwise specified
No. Parameters
Test Conditions
Pin Symbol Min. Typ. Max. Unit
1.1 Supply voltage range
1.2
Supply Current
VS = 2.7 V
1.3 Conversion Supply
Current
RL = 50 W, RT = ¥
RL = 50 W, RT = 56 W
2 Operating Frequencies
1
1
1
1
VS
IS
IS
PGC
PGC
2.7 5.5 V
9 13 mA
3 6.2 mA
9 dB
4 dB
2.1 RFi frequency
2.2 LOi frequency
2.3 IFo frequency
3 Isolation
2 RFi
7 fLOi
5 fIFo
10
50
50
2500
2500
2500
MHz
MHz
MHz
3.1 LO spurious at RFi
3.2 RFi to LOi
3.3 LO spurious at IFo
3.4 IFo to LOi
4 Output (IF)
PiLO = -10 to 0 dBm
PiRF = -25 dBm
PiLO = -10 to 0 dBm
7, 2
2, 7
5, 7
5, 7
ISLO–RF
ISRF–LO
ISLO–IF
ISIF–LO
-30 dBm
35 dB
-25 dBm
30 dB
4.1 Output compression
point
5 CPO
-10 dBm
5 Input (RF)
5.1 Input impedance
5.2 Input compression point
5.3 3rd-order input
intercept point
2 ZRFi
2 CPi
2 IIP3
700||0.8
-14
-4
W||pF
dBm
dBm
6 Input (LO)
6.1 LO level
7 Voltage Standing Wave Ratio (VSWR)
7 PiLO
-6 dBm
7.1 Input LO
7.2 Output IF
8 Noise Performance
7 VSWRLOi
4 VSWRIFo
<2
<2
8.1 Noise figure
9 Power-down Mode
PiLO = 0 dBm, RT = ¥
NF
10 dB
9.1 Supply current
VPU < 0.5V
VPU = 0 V
10 Power-down Voltage
1 ISPU
30 µA
< 5 µA
10.1 “Power ON”
VS = 3.5 to 5.5 V
VS = 2.7 to 3.5 V
8
VPON
VS -0.5
VS
VS + 0.5
VS + 0.5
V
V
10.2 “Power DOWN”
8 VPDN
1V
10.3 Power-down current
Power ON
Power DOWN
8
IPON
IPDN
0.15
<5
0.22
mA
µA
10.4 Settling time
5,8 tsPD
< 30
µs
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Type*
A
A
A
B
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
B
B
D
D
D
A
D
D
4 U2795B
4654A–CELL–01/03

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U2795B 전자부품, 판매, 대치품
U2795B
Figure 7. Gain versus IF Output Frequency, LO Level: -6 dBm, RF: 130 MHz, -35 dBm;
Parameter: RF Input Termination
18
14
10 without RT
with RF input matching
LS = 220 nH, Cp = 4.7 pF
6
2
with RT = 56 W
-2
0 500 1000 1500 2000 2500
IF (MHz)
Figure 8. IIP3 versus IF Output Frequency, LO Level: -6 dBm; RF: 130 MHz/
130.1 MHz, -35 dBm; Parameter: RF Input Termination
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
0
wit hout RT
wit h RT = 56 W
with RF input matching
LS = 220 nH, Cp = 4.7 pF
50 0
1000
1500
IF (MHz)
2000
2 50 0
4654A–CELL–01/03
7

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