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 6 January 2006
CV210-203A
410 – 485 MHz Dual-Branch Downconverter Product Information
The Communications Ed
g
e TM
Product Features
• High dynamic range downconverter
with integrated LO and IF amplifiers
• Dual channels fo r di versity
• Up to +28.5 dBm Input IP3
• +12 dBm Input P1dB
• RF: 410 – 485 MHz
• IF: 46 MHz
• +5V Single supply operation
• Pb-free 6mm 28-pin QFN package
• High-side LO configuration
• Comm on foot p ri nt wi t h ot her
PCS/UMTS/cellular versions
Product Description
The CV210-203A is a dual-channel high-linearity
downconverter designed to meet the demanding
performance, functionality, and cost goals of current and
next generation mobile infrastructure basestations. It
provides high dynamic range performance in a low
profile lead-free/RoHS-compliant 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 mobile base transceiver stations.
Functional Diagram
Top View
Specifications (1)
Parameters Units Min Typ Max Comments
RF Frequency Range MHz 410 – 485
LO Frequency Range MHz 456 – 531
IF Center Frequency Range MHz 46 See note 2
SSB Conversion Gain dB 10.5 Temp = 25 °C
G a i n D r i ft o v e r T e m p ( -4 0 t o 8 5° C ) dB -1.5 ±0.5 1.5 Referenced to +25 °C
Input IP3 dBm +23 RF = 410 – 420 MHz, See note 3
Input IP3 dBm +27.5 RF = 450 – 460 MHz, See note 3
Input IP3 dBm +28.5 RF = 475 – 485 MHz, See note 3
Input IP2 dBm +42.5
Input 1 dB Compression Point dBm +10.5
Noise Figure dB 11 See note 4
LO Input Drive Level dBm -2.5 0 +2.5
LO-RF Isolation dB 25 PLO = 0 dBm
LO-IF Isolation dB 35 PLO = 0 dBm
Branch-Branch Isolation dB 65
Return Loss: RF Port dB 25
Return Loss: LO Port dB 12
Return Loss: IF Port dB 22
Operating Supply Voltage V +4.9 +5 +5.1
Supply Current mA 320 390 475
Thermal Resistance °C / W 27
Junction Temperature °C 160 See note 5
1. Specifications when using the application specific circuit (shown on page 3) with a high-side LO = 0 dBm 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. Assumes the supply voltage = +5 V. IIP3 is measured with Δf = 1 MHz with RFin = -5 dBm / tone.
4. Assumes LO injection noise is filtered at the thermal noise floor, -174 dBm/Hz, at the RF, IF, and Image frequencies.
5. The maximum junction temperature ensures a minimum MTTF rating of 1 million hours of usage.
Absolute Maximum Rating
Parameter Rating
Operating Case Temperature -40 to +85 °C
Storage Temperature -55 to +150 °C
RF Port Input Power (pins 9, 27)
Maximum RF Port Input Power is for +25 dBm
for 1 hour cumulative over 10 years lifetime. +25 dBm
DC Voltage +5.5 V
Junction Temperature +220 °C
Operation of this device above any of these parameters may cause permanent damage.
Ordering Information
Part No. Description
CV210-203AF 410 – 485 MHz Dual-Branch Down converter
(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 11 12 13 14
IF Amp 2
IF Amp 1
LO Driver Amp
BIAS
GND
N/C
GND
LO
GND
N/C
N/C
GND
BIAS
GND
N/C
GND
N/C
GND
MIXER
IF/RF1
GND
A
MP1
INPUT
GND
GND
GND
MIXE
R
IF/RF2
GND
GND
GND
RF/IF
RF/IF
AMP2
INPUT
IF1
OUTPUT
IF2
OUTPUT
LPF
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 2 of 6 January 2006
CV210-203A
410 – 485 MHz Dual-Branch Downconverter Product Information
The Communications Ed
g
e TM
Device Architecture / Application Circuit Information
Typical Downconverter Performance Chain Analysis (Each Branch)
Cumulative Performance
Stage Gain
(dB)
Input
P1dB
(dBm)
Input
IP3
(dBm)
NF
(dB) Current
(mA) Gain
(dB)
Input
P1dB
(dBm)
Input
IP3
(dBm)
NF
(dB)
LO Am p / M MIC Mixer -9 11 25 9.3 60 -9 11 25 9.3
IF Amplifier 19 2 22 1.8 150 10 8 24 11
CV210-203A Cumulative Performance 360* 10 +8 +24 11
* The 2nd branch includes another mixer and IF amplifier, which increases the total current consumption
of the MCM to be 360 mA.
CV210-203A: The application circui t can be broken up int o three main
functi ons as denot ed in the color ed dotted area s above: RF/I F diplexing
(blue), IF ampl if ier mat ch ing (gr e en) , and dc bias in g (pur ple) . Th er e ar e
various placeh olders f or ch ip comp onents in the circuit schematic so that
a common PCB can be u sed for all WJ dual-bra nch conv erters. Furth er
details are given in the Application Note located on the website titled
“CV2xx Series - PWB Design Guidelines”.
External Diplexer: In a downconversion ap plication, 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 direct ed to the appropriate ports by the externa l
diplexer . A six- elemen t dip lexer is used in the cir cuit implem enta tion.
IF Amplifier Matching: 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 applications.engineering@wj.com.
DC biasing: DC bias must be provide d for the LO and IF amplifiers
in the converter. R1 sets the operating cur rent for the last stage of t he
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.
Printed Circuit Board Material:
.014” FR-4
,
4 la
y
ers
,
.062” total thickness
1
2
3
4
5
6
7
21
20
19
18
17
16
15
28
27 26 25 24 23 22
8 9 10 11 12 13 14
IF Amp 2
IF Amp 1
LO Driver Amp
BIAS
GND
N/C
GND
LO
GND
N/C
N/C
GND
BIAS
GND
N/C
GND
N/C
GND
MIXER
IF/RF1
GND
A
MP1
INPUT
GND
GND
GND
MIXE
R
IF/RF2
GND
GND
GND
RF/IF
RF/IF
AMP2
INPUT
IF1
OUTPUT
IF2
OUTPUT
LPF
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 3 of 6 January 2006
CV210-203A
410 – 485 MHz Dual-Branch Downconverter Product Information
The Communications Ed
g
e TM
Application Circuit: IF = 46 MHz
PCB Layout
Circuit Board Material: .014” FR-4, 4 layers, .062” total thickness
Bill of Materials
Ref. Desig. Component Size
R1 11.3 Ω chip resistor 0805
R2, R3, R4 0 Ω chip resistor 0603
R6, R7 3.3 Ω chip resistor 0603
C1, C5, C10, C15 1000 pF chip capac itor 0603
C2, C8 8.2 pF chip capacitor 0603
C3, C9 18 pF chip capacitor 0603
C4, C11 22 pF chip capacitor 0603
C6, C12, C14 .018 μF chip capacitor 0603
C7, C13 100 pF chip capacitor 0603
C16, C17 20 pF chip capacitor 0603
L1 120 nH chip inductor 0603
L2, L6 22 nH chip inductor 0603
L3, L7 47 nH chip inductor 0603
L4, L8 390 nH chip inductor 0603
L5, L9 560 nH chip induct or 0805
L10, L11 22 nH chip inductor 0603
C19, C20, C21, C22 Do Not Place
U1 CV210-203A WJ
Converter QFN
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 4 of 6 January 2006
CV210-203A
410 – 485 MHz Dual-Branch Downconverter Product Information
The Communications Ed
g
e TM
CV210-203APCB46 Application Circuit Performance Plots
Input IP2 vs RF Frequency over Vdd
25 deg C, LO = 0 dBm, IF = 46 MHz, high-side LO
36
38
40
42
44
46
410 425 440 455 470 485
RF Frequency (MHz)
Vdd = 4.9 V
Vdd = 5.0 V
Vdd = 5.1 V
Input IP2 vs RF Frequency over Temp
LO = 0 dBm, IF = 46 MHz, high-side LO
36
38
40
42
44
46
410 425 440 455 470 485
RF Frequency (MHz)
-40 de
g
C +25 de
g
C +85 de
g
C
Input IP2 vs RF Frequency over LO Power
25 deg C, IF = 46 MHz, high -side LO
36
38
40
42
44
46
410 425 440 455 470 485
RF Frequency (MHz)
LO = -2.5 dBm
LO = 0 dBm
LO = 2.5 dBm
Input IP3 vs RF Frequency over Vdd
25 deg C, LO = 0 dBm, IF = 46 MHz, high-side LO
20
22
24
26
28
30
410 425 440 455 470 485
RF Frequency (MHz)
Vdd = 4.9 V
Vdd = 5.0 V
Vdd = 5.1 V
Input IP3 vs RF Frequency over Temp
LO = 0 dBm, IF = 46 MHz, high-side LO
20
22
24
26
28
30
410 425 440 455 470 485
RF Frequency (MHz)
-40 deg C
+25 deg C
+85 deg C
Input IP3 vs RF Frequency over LO Power
25 deg C, IF = 46 MHz, high -side LO
20
22
24
26
28
30
410 425 440 455 470 485
RF Frequency (MHz)
LO = -2.5 dBm
LO = 0 dBm
LO = 2.5 dBm
Conversion Gain vs RF Frequency over Vdd
25 deg C, LO = 0 dBm, IF = 46 MHz, high-side LO
7
8
9
10
11
12
410 425 440 455 470 485
RF Frequency (MHz)
Vdd = 4.9 V
Vdd = 5.0 V
Vdd = 5.1 V
Conversion Gain vs RF Frequency over Temp
LO = 0 dBm, IF = 46 MHz, high-side LO
7
8
9
10
11
12
410 425 440 455 470 485
RF Frequency (MHz)
-40 de
g
C +25 de
g
C +85 de
g
C
Conversion Gain vs RF Frequency over LO Power
25 deg C, IF = 46 MHz, high-side LO
7
8
9
10
11
12
410 425 440 455 470 485
RF Frequency (MHz)
LO = -2.5 dBm
LO = 0 dBm
LO = 2.5 dBm
Noise Figure vs RF Frequency over Temp
LO = 0 dBm, IF = 46 MHz, high-side LO
8
9
10
11
12
13
410 425 440 455 470 485
RF Frequency (MHz)
-40 de
g
C +25 de
g
C +85 de
g
C
Input P1dB vs RF Frequency over Temp
LO = 0 dBm, IF = 46 MHz, high-side LO
7
8
9
10
11
12
410 425 440 455 470 485
RF Frequency (MHz)
-40 de
g
C +25 de
g
C +8 5 de
g
C
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 5 of 6 January 2006
CV210-203A
410 – 485 MHz Dual-Branch Downconverter Product Information
The Communications Ed
g
e TM
CV210-203APCB46 Application Circuit Performance Plots (cont’d)
RF Return Loss vs RF Frequency over Temp
LO = 0 dBm, IF = 46 MHz, high-side LO
-40
-30
-20
-10
0
410 425 440 455 470 485
RF Frequency (MHz)
-40 de
g
C +25 de
g
C +85 de
g
C
IF Return Loss vs RF Frequency over Temp
LO = 0 dBm, IF = 46 MHz, high-side LO
-25
-20
-15
-10
-5
0
410 425 440 455 470 485
RF Frequency (MHz)
-40 de
g
C +25 de
g
C +85 de
g
C
LO Return Loss vs LO Frequency over Temp
LO = 0 dBm
-25
-20
-15
-10
-5
0
455 470 485 500 515 530
LO Freque ncy (MHz)
-40 de
g
C +25 de
g
C +85 de
g
C
L-I Isolation vs LO Frequency
Referenced with LO = 0 dBm
15
20
25
30
35
40
450 470 490 510 530
LO Frequency (MHz)
-40° C +25° C +85° C
L-R Isolation vs LO Frequency
Referenced with LO = 0 dBm
5
10
15
20
25
30
450 470 490 510 530
LO Frequency (MHz)
-40° C +25° C +85° C
Branch-to-Branch Isolation over Temp
LO = 0 dBm, IF = 46 MHz, high-side LO
40
50
60
70
80
410 425 440 455 470 485
RF Frequency (MHz)
-40 de
g
C +25 de
g
C +85 de
g
C
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 6 of 6 January 2006
CV210-203A
410 – 485 MHz Dual-Branch Downconverter Product Information
The Communications Ed
g
e TM
CV210-203AF Mechanical Information
This package is lead-free/RoHS-compliant. It is compatible with both lead-free (maximum 260°C reflow temperature) and leaded (maximum
245°C reflow temperature) soldering processes. The pl ating material on the pins is annealed matte tin over copper.
Outline Drawing
Mounting Configuration / Land Pattern
Product Marking
The component will be lasermarked with a
“CV210-2AF” product label with a four-digit
alphanumeric lot code on the top surface of the
package. A “203” lasermark will be shown
above the “CV210-2AF” to differentiate this
product with the CV210-2AF.
Tape and reel specifications for this part will be
located on the website in the “Application
Notes” section.
ESD / MSL Information
ESD Rating: Class 1B
Value: Passes 500V to <1000V
Test: Human Body Model ( HBM)
Standard: JEDEC Standard JESD22-A114
ESD Rating: Class III
Value: Passes 500V to <1000V
Test: Charged Device Model (CDM)
Standard: JEDEC Standard JESD22-C101
MSL Rating: Level 2 at +260°C convection reflow
Standard: JEDEC Standard J-STD-020
Functional Pin Layout
Pin Function Pin Function
1 No Connect 15 No Connect
2 GND 16 GND
3 LO Amp Bias 17 LO input
4 GND 18 GND
5 No Connect 19 No Connect
6 GND 20 GND
7 No Connect 21 +5 V
8 GND 22 GND
9 Ch. 2 Mixer
RF Input /
IF Output 23 Channel 1 IF
Amp Output /
Bias
10 GND 24 GND
11 Channel 2
IF Amp Input 25 Channel 1
IF Amp Input
12 GND 26 GND
13 Channel 2
IF Amp
Output / Bias 27 Channel 1
Mixer RF Input /
IF Output
14 GND 28 GND
