參數(shù)資料
型號(hào)： CV221-2A_07
英文描述： 1.9 - 2.7 GHz Dual-Branch Downconverter
中文描述： 1月9日至2月7日GHz雙科變頻器
文件頁(yè)數(shù)： 1/5頁(yè)
文件大?。?/td> 335K
代理商： CV221-2A_07
Specifications and information are subject to change without notice
WJ Communications, Inc
Phone 1-800-WJ1-4401
FAX: 408-577-6621
e-mail: sales@wj.com
Web site: www.wj.com
Page 1 of 5 June 2007
CV221-2A
1.9 – 2.7 GHz Dual-Branch Downconverter
Product Features
High dynamic range downconverter
with integrated LO and IF amplifiers
Dual channels for diversity
+28 dBm Input IP3
+11.5 dBm Input P1dB
RF: 1900 – 2700 MHz
IF: 65 – 300 MHz
+5V Single supply operation
RoHS-compliant / Pb-free
6x6mm 28-pin QFN package
Low-side LO configuration
Product Description
The CV221-2A is a dual-channel high-linearity down-
converter designed to meet the demanding performance,
functionality, and cost goals of current and next generation
mobile infrastructure basestations and repeaters. It
provides high dynamic range performance in a low profile
RoHS-compliant/lead-free surface-mount leadless package
that measures 6 x 6 mm square.
It is ideally suited for high dynamic range receiver front
ends using diversity receive channels. Functionality
includes frequency conversion and IF amplification,
while an integrated LO driver amplifier powers the
passive mixer. The MCM is implemented with reliable
and mature GaAs MESFET and InGaP HBT technology.
Typical applications include frequency downconversion
used in 3G W-CDMA and WiMax basestation
transceiver or repeater applications.
Functional Diagram
Specifications
(1)
Parameters
RF Frequency Range
LO Frequency Range
IF Frequency Range
% Bandwidth around IF center
frequency
IF Test Frequency
SSB Conversion Gain
Gain Drift over Temp (-40 to 85
°C)
Input IP3
Input 1 dB Compression Point
Noise Figure
LO Input Drive Level
LO-RF Isolation
LO-IF Isolation
RF-IF Isolation
Branch-Branch Isolation
Return Loss: RF Port
Return Loss: LO Port
Return Loss: IF Port
Operating Supply Voltage
Supply Current
Thermal Resistance
Junction Temperature
Units
MHz
MHz
MHz
Min
Typ
Max
Min
Typ
Max Comments
See note 2
1900 – 2400
1600 – 2335
65 – 300
±7.5
240
9.2
2500 – 2700
2200 – 2565
135 – 300
%
±12
155
8.4
See note 3
Temp = 25 °C
MHz
dB
6.5
10.5
5.4
9.9
dB
dBm
dBm
dB
dBm
dB
dB
dB
dB
dB
dB
dB
V
mA
°C / W
°
C
±0.6
+28
+11.5
11
0
12
26
25
45
14
14
13
+5
315
±0.6
+22
+8.0
13
0
9
26
25
40
12
14
10
+5
315
Referenced to +25 °C
See note 4
See note 4
See note 5
P
LO
= 0 dBm
P
LO
= 0 dBm
See note 6
See note 6
+24
-2.5
+17
-2.5
+2.5
330
34
160
+2.5
330
34
160
1. Specifications when using the application specific circuit (shown on page 3) with a low side LO = 0 dBm and IF = 240 MHz in a downconverting application at 25
°
C.
2. IF matching components affect the center IF frequency. Proper component values for other IF center frequencies than shown can be provided by emailing to applications.engineering@wj.com.
3. The IF bandwidth of the converter is defined as 15% around any center frequency in its operating IF frequency range. The bandwidth is determined with external components. Specifications are valid around
the total ±7.5% bandwidth. ie. with a center frequency of 240 MHz, the specifications are valid from 240 ± 18 MHz.
4. Assumes the supply voltage = +5 V. IIP3 is measured with
Δ
f = 1 MHz with RFin = -5 dBm / tone.
5. Assumes LO injection noise is filtered at the thermal noise floor, -174 dBm/Hz, at the RF, IF, and Image frequencies.
6. The R1 resistor can be modified for the CV221-2A to draw less current. Changing it from 13 to 18
Ω
is expected to have the converter draw 17mA less current so that the converter will draw about 300mA
typically under LO drive, while degrading the IIP3 performance by 0.5 dB.
Absolute Maximum Rating
Parameter
Operating Case Temperature
Storage Temperature
DC Voltage
Junction Temperature
Operation of this device above any of these parameters may cause permanent damage.
Rating
-40 to +85
°
C
-55 to +150 °C
+5.5 V
+220 °C
Ordering Information
Part No.
CV221-2AF
CV221-2APCB240 Fully Assembled Eval. Board, IF = 240MHz
Description
1.9-2.7GHz Dual-Branch Downconverter
(lead-free/RoHS-compliant 6x6mm QFN package)
1
2
3
4
5
6
7
21
20
19
18
17
16
15
28
27
26
25
24
23
22
8
9
10
G
11
12
13
14
IF Amp 2
IF Amp 1
LO Driver Amp
BIAS
GND
GND
GND
LO
GND
GND
RF 1
INPUT
GND
BIAS
GND
GND
GND
G
M
I
G
A
I
G
G
G
M
I
G
G
IF
A
I
I
O
I
O
IF
RF
RF
RF 2
INPUT
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參數(shù)描述
CV221-2AF 功能描述:上下轉(zhuǎn)換器 1900-2700MHz RF 65-300MHz IF RoHS:否 制造商:Texas Instruments 產(chǎn)品:Down Converters 射頻:52 MHz to 78 MHz 中頻:300 MHz LO頻率: 功率增益: P1dB: 工作電源電壓:1.8 V, 3.3 V 工作電源電流:120 mA 最大功率耗散:1 W 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFP-128
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