WJ CV110-2AF Cellular-band high linearity downconverter Datasheet

CV110-2A
Cellular-band High Linearity Downconverter
IF IN
GND
26
IF THRU
GND
27
GND
RF IN
28
25
24
23
22
RF OUT 1
GND 2
21 IF OUT
IF Amp 20 GND
RF Amp
N/C 3
19 N/C
IF Feedthru
Path
GND 4
18 GND
LO Driver Amp
IF THRU 5
17 BIAS
GND 6
16 GND
RF/IF
10
11
12
13
14
GND
9
LO OUT
Typical applications include frequency downconversion
used in CDMA/GSM/TDMA, CDMA2000, W-CDMA,
and EDGE 2.5G and 3G mobile base transceiver stations
for cellular frequency bands.
15 LO IN
LO
8
GND
RF/IF 7
MIXLO
Functionality includes RF amplification, 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.
GND
RF: 800 – 960 MHz
IF: 200 – 250 MHz
+37 dBm Output IP3
+20 dBm Output P1dB
5 dB Noise Figure
+5V Single supply operation
Pb-free 6mm 28-pin QFN package
Low-side LO configuration
Common footprint with other
PCS/UMTS versions
The CV110-2A is a high linearity downconverter
designed to meet the demanding issues for performance,
functionality, and cost goals of current and next
generation mobile infrastructure. It provides high
dynamic range performance in a low profile surfacemount leadless package that measures 6 x 6 mm square.
N/C
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Functional Diagram
GND
• High dynamic range downconverter
with integrated LO, IF, & RF amps
Product Description
GND
Product Features
Specifications (1)
Parameters
RF Frequency Range
LO Frequency Range
IF Center Frequency Range
% Bandwidth around IF center frequency
IF Test Frequency
SSB Conversion Gain
Gain Drift over Temp (-40 to 85 °C)
Output IP3
Output IP2
Output 1dB Compression Point
Noise Figure
LO Input Drive Level
LO-RF Isolation
LO-IF Isolation
Return Loss: RF Port
Return Loss: LO Port
Return Loss: IF Port
Operating Supply Voltage
Supply Current
FIT Rating
Thermal Resistance
Junction Temperature
Units
MHz
MHz
MHz
%
MHz
dB
dB
dBm
dBm
dBm
dB
dBm
dB
dB
dB
dB
dB
V
mA
failures
/1E9 hrs
°C / W
°C
Min
-2.5
+4.9
290
Typ
800 – 960
550 – 760
200 – 250
±7.5
240
22
±1.5
+37
+45
+20
5
0
60
40
15
10
15
+5
360
Max
Comments
See note 2
See note 3
Temp = 25 °C
Referenced to +25 °C
See note 4
See note 4
See note 5
+2.5
See note 6
PLO = 0 dBm
+5.1
480
72.1
27
160
@ 70o C ambient, 90% confidence
See note 7
1. Specifications when using the application specific circuit (shown on page 3) with a low side LO = 0 dBm in a downconverting application over the operating case temperature range.
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 [email protected].
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. OIP3 is measured with ∆f = 1 MHz with IFout = 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. L-R Isolation is referenced to an LO injection of 0 dBm. The L-R performance shown also includes the isolation due to an external SAW filter between the RF amplifier and mixer.
7. The maximum junction temperature ensures a minimum MTTF rating of 1 million hours of usage.
Absolute Maximum Rating
Parameter
Rating
Operating Case Temperature
Storage Temperature
DC Voltage
Junction Temperature
RF Input (continuous)
-40 to +85 °C
-55 to +125 °C
+6 V
+220 °C
+2 dBm
Ordering Information
Part No.
Description
CV110-2AF
Cellular-band High Linearity Downconverter
(lead-free/RoHS-compliant 6x6mm QFN package)
CV110-2APCB240 Fully Assembled Eval. Board, IF = 240MHz
Operation of this device above any of these parameters may cause permanent damage.
Specifications and information are subject to change without notice
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: [email protected] • Web site: www.wj.com
Page 1 of 4 April 2007
CV110-2A
Cellular-band High Linearity Downconverter
GND
26
IF IN
GND
27
IF THRU
RF IN
28
GND
GND
Device Architecture / Application Circuit Information
25
24
23
22
Typical Downconverter Performance Chain Analysis
RF OUT 1
GND 2
21 IF OUT
IF Amp 20 GND
RF Amp
N/C 3
19 N/C
IF Feedthru
Path
GND 4
18 GND
LO Driver Amp
IF THRU 5
17 BIAS
GND 6
16 GND
RF/IF
15 LO IN
11
GND
MIXLO
12
13
14
GND
10
LO OUT
9
GND
8
N/C
LO
GND
RF/IF 7
RF Amp Matching
RF Amp Bias
Output
P1dB
(dBm)
Gain
(dB)
Stage
RF Amplifier
RF Filter
MMIC Mixer
IF Amplifier
CV110-2A
Output
IP3
(dBm)
NF
(dB)
13.5
21
40.0
3.5
-1.5
----1.5
-9.0
8
23.0
9.8
19.0
22
39.1
2.5
Cumulative Performance
IF Amp Matching
Current
(mA)
150
--60
150
360
Cumulative Performance
Output Output
NF
P1dB
IP3
(dB)
(dBm)
(dBm)
13.5
21.0
40.0
3.5
12.0
19.5
38.5
3.5
3.0
6.1
22.1
4.5
22.0
20.3
37.0
5.0
22.0
20.3
37.0
5.0
Gain
(dB)
IF Amp Bias
RF Bandpass Filter /
Attenuator Pad
Printed Circuit Board Material:
.014” FR-4, 4 layers, .062” total thickness
LO Amp Bias
LO Amp Bias
RF / IF Diplexer
(used for cellular versions only)
CV110-2A: The application circuit can be broken up into four main
functions as denoted in the colored dotted areas above: RF/IF
diplexing (purple), amplifier matching (green), filtering (red), and dc
biasing (blue). There are various placeholders for chip components in
the circuit schematic so that a common PCB can be used for all WJ
single-branch converters. Additional placeholders for other optional
functions such as filtering are also included.
RF / IF Amplifier Matching: The RF amplifier requires a shunt
matching element for optimal gain and input return loss performance.
The IF amplifier requires matching elements to optimize the
performance of the amplifier to the desired IF center frequency.
Since IF bandwidths are typically on the order of 5 to 10%, a simple
two element matching network, in the form of either a high-pass or
low-pass filter structure, is sufficient to match the MMIC IF
amplifier over these narrow bandwidths. Proper component values
for other IF center frequencies can be provided by emailing to
[email protected].
RF Bandpass Filtering: Bandpass filtering is recommended to
reject the image frequencies and achieve the best noise figure
performance with the downconverter.
The bandpass filter,
implemented with a SAW filter on the application circuit, allows for
the suppression of noise from the image frequency. It is permissible
to not use a filter and use a 2 dB pad with R6, R7, and R16 instead
with slightly degraded noise figure performance. Standard WJ
evaluation boards will have the 2 dB pad in place.
External Diplexer: In a downconversion application, the incoming
RF signal impinges on the switching elements of the mixer; the
interaction with these switches produces a signal at the IF frequency.
The two signals (RF and IF) are directed to the appropriate ports by
the external diplexer. Pin 5 contains the IF signal and allows the
signal to be transferred to pin 25 for the convenience of PCB layouts.
DC biasing: DC bias must be provided for the RF, LO and IF
amplifiers in the converter. R1 sets the operating current for the last
stage of the LO amplifier and is chosen to optimize the mixer LO
drive level. Proper RF chokes and bypass capacitors are chosen for
proper amplifier biasing at the intended frequency of operation. The
“+5 V” dc bias should be supplied directly from a voltage regulator.
IF Amplifier Matching
Frequency (MHz)
L7 (nH)
C17 (pF)
R8 (ohms)
L4 (nH)
180
82
4.7
2.2
330
210
82
3.3
2.2
220
240
56
3.9
2.2
220
Specifications and information are subject to change without notice
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: [email protected] • Web site: www.wj.com
Page 2 of 4 April 2007
CV110-2A
Cellular-band High Linearity Downconverter
Downconverting Application Circuit: CV110-2APCB240
RF = 800 – 960 MHz, IF = 240 MHz
PCB Layout
Circuit Board Material: .014” FR-4, 4 layers, .062” total thickness
Bill of Materials
Ref. Desig.
R1
R2, R3, R4, R5
R6, R7
R8
R9, R10
R11
R16
C1, C3, C4, C5, C6
C2
C7, C9, C16
C8, C10
C11, C12, C13,
C18, C21, F1
C14
C15
C17
C18
L2
L3
L4
L5
L6
L7
L8
L10
U1
Component
13 Ω chip resistor, size 0805
0 Ω chip resistor
470 Ω chip resistor
2.2 Ω chip resistor
200 Ω chip resistor
27 Ω chip resistor
10 Ω chip resistor
100 pF chip capacitor
8.2 pF chip capacitor
0.018 µF chip capacitor
1000 pF chip capacitor
Shown in silkscreen, but not
used in actual circuit.
5.6 pF chip capacitor
12 pF chip capacitor
3.9 pF chip capacitor
1.5 pF chip capacitor
18 nH chip inductor
120 nH chip inductor
220 nH chip inductor, size 0805
12 nH chip inductor
33 nH chip inductor
56 nH chip inductor
15 nH chip inductor
10 nH chip inductor
CV110-2A WJ Converter
All components are of size 0603 unless otherwise specified.
Specifications and information are subject to change without notice
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: [email protected] • Web site: www.wj.com
Page 3 of 4 April 2007
CV110-2A
Cellular-band High Linearity Downconverter
Mechanical Information
This package is lead-free/RoHS-compliant. The plating material on the pins is annealed matte tin over copper. It is compatible with both
lead-free (maximum 260 °C reflow temperature) and leaded (maximum 245 °C reflow temperature) soldering processes.
Product Marking
Outline Drawing
The component will be lasermarked with a
“CV110-2AF” product label with an
alphanumeric lot code on the top surface of the
package.
Tape and reel specifications for this part will be
located on the website in the “Application
Notes” section.
ESD / MSL Information
ESD Rating:
Value:
Test:
Standard:
Class 1B
Passes ኑ500V to <1000V
Human Body Model (HBM)
JEDEC Standard JESD22-A114
ESD Rating:
Value:
Test:
Standard:
Class III
Passes ኑ500V to <1000V
Charged Device Model (CDM)
JEDEC Standard JESD22-C101
MSL Rating: Level 2 at +260 °C convection reflow
Standard:
JEDEC Standard J-STD-020
Functional Pin Layout
Mounting Configuration / Land Pattern
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
FUNCTION
RF Amp Output
GND
N/C
GND
IF Feedthru Port
GND
Mixer RF /
IF Port
GND
N/C or GND
GND
Mixer LO Input
GND
LO Amp Output
GND
Pin
15
16
17
18
19
20
21
22
23
24
25
26
27
28
FUNCTION
LO Amp Input
GND
LO Amp Bias
GND
N/C or GND
GND
IF Amp
Output/Bias
GND
IF Amp Input
GND
IF Feedthru Port
GND
RF Amp Input
GND
Specifications and information are subject to change without notice
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: [email protected] • Web site: www.wj.com
Page 4 of 4 April 2007
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