This document contains information on a new product.
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
July 2003
The Communications Edge
TM
CV110-1
Cellular-band High Linearity Downconverter
Product Information
Product Features
High dynamic range downconverter
with integrated LO, IF, & RF amps
RF: 800 915 MHz
IF: 65 120 MHz
+37 dBm Output IP3
+20 dBm Output P1dB
5 dB Noise Figure
Single supply operation (+5 V)
6x6 mm 28-pin QFN package
Low-side LO configuration
Common footprint with other
PCS/UMTS/cellular versions
Product Description
The CV110-1 is a high linearity downconverter designed
to meet the demanding issues for performance,
functionality, and cost goals of current and next
generation mobile infrastructure basestations. It provides
high dynamic range performance in a low profile
surface-mount leadless package that measures 6 x 6 mm
square.
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.
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.
Functional Diagram
Specifications
1
Parameters
Units
Minimum
Typical
Maximum Comments
RF Frequency Range
MHz
800
915
LO Frequency Range
MHz
680
850
IF Center Frequency Range
MHz
65
75
120
See note 2
% Bandwidth around IF center frequency
%
7.5
See note 2
SSB Conversion Gain
dB
22
Temp = 25 C
Gain Drift over Temp (-40 C to 85 C)
dB
1.5
Referenced to +25 C
Output IP3
dBm
+39
See
note
3
Output IP2
dBm
+45
See
note
3
Output 1dB Compression Point
dBm
+21
Noise Figure
dB
4.5
See
note
4
LO Input Drive Level
dBm
-2.5
0
+2.5
LO-RF Isolation
dB
60
P
LO
= 0 dBm
LO-IF Isolation
dB
40
P
LO
= 0 dBm
Return Loss: RF Port
dB
15
Return Loss: LO Port
dB
10
Return Loss: IF Port
dB
15
Operating Supply Voltage
V
+4.9
+5
+5.1
Supply Current
mA
290
360
480
FIT Rating
failures
/
1E9 hrs
72.1 @
70
o
C ambient, 90% confidence
Junction Temperature
C 160
See
note
5
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. 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. i.e. with a center frequency of 80 MHz, the specifications are valid from 80 6 MHz.
3. Assumes the supply voltage = +5 V. OIP3 is measured with
f = 1 MHz with IF
out
= 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 MTBF rating of 1 million hours of usage.
Absolute Maximum Rating
Ordering Information
Parameters
Rating
Part No.
Description
Operating Case Temperature
-40 to +85
C
CV110-1
Cellular-band High Linearity Downconverter
Storage Temperature
-55 to +125 C
Fully-Assembled Application Board,
DC Voltage
+6 V
CV110-1PCB75RX
RF = 824 849 MHz, IF = 75 MHz
Junction Temperature
+220 C
Fully-Assembled Application Board,
RF Input (continuous)
+2 dBm
CV110-1PCB75TX
RF = 869 894 MHz, IF = 75 MHz
Operation of this device above any of these parameters may cause permanent damage.
GND
RF I
N
GND
I
F
T
HRU
GND
IF
IN
GND
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
RF Amp
LO Driver Amp
IF OUT
GND
N/C
GND
BIAS
GND
LO IN
RF OUT
GND
N/C
GND
IF THRU
GND
RF/IF
GND
N/
C
GND
MIX
L
O
GND
LO
O
U
T
GND
RF/IF
IF Feedthru
Path
LO
This document contains information on a new product.
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
July 2003
The Communications Edge
TM
CV110-1
Cellular-band High Linearity Downconverter
Product Information
Device Architecture / Application Circuit Information
Typical Downconverter Performance Chain Analysis
Cumulative Performance
Stage
Gain
(dB)
Output
P1dB
(dBm)
Output
IP3
(dBm)
NF
(dB)
Current
(mA)
Gain
(dB)
Output
P1dB
(dBm)
Output
IP3
(dBm)
NF
(dB)
RF
Amplifier
13.5 21 40.0 3.5 150 13.5 21.0 40.0 3.5
RF
Filter -1.5 ---
--- 1.5 --- 12.0 19.5 38.5 3.5
MMIC Mixer
-9.0
8
23.0
9.8
60
3.0
6.1
22.1
4.5
IF
Amplifier
19.0 22 39.1 2.5 150 22.0 20.3 37.0 5.0
CV110-1
Cumulative Performance
360
22.0
20.3
37.0
5.0
CV110-1: 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 match:
The RF amplifier requires a matching element
(L10) 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
applications.engineering@wj.com.
RF bandpass filter:
Bandpass filtering is recommended to 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.
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. A four-element diplexer is used in the circuit
implementation (L8 and C2 are not used). Pin 5 contains the IF
signal and allows the signal to be transferred to pin 25 for the
convenience of PCB layouts.
IF lowpass filter (optional) and LO LPF:
Filtering of unwanted RF and
LO signals are typically performed in the IF chain. IF filtering may be
realized using lumped elements; placeholders (L9, C21, C22) are provided
in the application circuit to allow for filtering to be implemented if desired.
The recommended LO filtering component values (L1, C19, C20) are
shown in the application circuit schematics. LO filtering reduces
degradation in mixer performance due to the unwanted harmonics of the
fundamental LO input signal.
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.
GND
RF I
N
GND
I
F
T
HRU
GND
IF
IN
GND
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
RF Amp
LO Driver Amp
IF OUT
GND
N/C
GND
BIAS
GND
LO IN
RF OUT
GND
N/C
GND
IF THRU
GND
RF/IF
GND
N/
C
GND
MIX
L
O
GND
LO
O
U
T
GND
RF/IF
IF Feedthru
Path
LO
RF Amp Bias
IF Amp Bias
LO Amp Bias
LO Amp Bias
RF Bandpass Filter
Optional LO
Lowpass Filter
Optional IF
Lowpass Filter
RF Amp Matching
IF Amp Matching
RF / IF Diplexer
Printed Circuit Board Material:
.014" FR-4, 4 layers, .062" total thickness
This document contains information on a new product.
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
July 2003
The Communications Edge
TM
CV110-1
Cellular-band High Linearity Downconverter
Product Information
Downconverting Application Circuit: CV110-1PCB75RX
RF = 824 849 MHz, IF = 75 MHz
(Targeted for Cellular-band Receive Path Downconversion Applications)
Bill of Materials
Ref. Desig.
Component
R1
42.2
chip resistor,
size 0805
R2, R3, R5, C2
R16, L1, L8, L9 0
chip resistor
R6, R7, C11
C12, C13, C19
C20, C21, C22
DNP
R8
3.3
chip resistor
C1, C3, C5, C6
100 pF chip capacitor
C4, C8
1000 pF chip capacitor
C7, C10, C16
0.1
F chip capacitor
C9
0.018
F chip capacitor
C14
3.9 pF chip capacitor
C15
8.2 pF chip capacitor
C17
22 pF chip capacitor
L2
18 nH chip inductor
L3 120
nH
chip
inductor
L4
220 nH chip inductor,
size 0805
L5
12 nH chip inductor
L6
22 nH chip inductor
L7 150
nH
chip
inductor
L10
10 nH chip inductor
F1
SAWTEK Filter 855779
824 849 MHz BW
D1
Jumper wire
(or 0
resistor)
U1
CV110-1 WJ Converter
All components are of size 0603 unless otherwise specified.
DNP represents "Do Not Place"
Downconverting Application Circuit: CV110-1PCB75TX
RF = 869 894 MHz, IF = 75 MHz
(Targeted for Cellular-band Transmit Path Error Correction Feedback Applications)
Bill of Materials
Ref. Desig.
Component
R1
42.2
chip resistor,
size 0805
R2, R3, R5, C2
R16, L1, L8, L9 0
chip resistor
R6, R7, C11
C12, C13, C19
C20, C21, C22
DNP
R8
3.3
chip resistor
C1, C3, C5, C6
100 pF chip capacitor
C4, C8
1000 pF chip capacitor
C7, C10, C16
0.1
F chip capacitor
C9
0.018
F chip capacitor
C14
3.9 pF chip capacitor
C15
8.2 pF chip capacitor
C17
22 pF chip capacitor
L2
18 nH chip inductor
L3 120
nH
chip
inductor
L4
220 nH chip inductor,
size 0805
L5
12 nH chip inductor
L6
22 nH chip inductor
L7 150
nH
chip
inductor
L10
10 nH chip inductor
F1
SAWTEK Filter 855782
869 894 MHz BW
D1
Jumper wire
(or 0
resistor)
U1
CV110-1 WJ Converter
All components are of size 0603 unless otherwise specified.
DNP represents "Do Not Place"
This document contains information on a new product.
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
July 2003
The Communications Edge
TM
CV110-1
Cellular-band High Linearity Downconverter
Product Information
Outline Drawing
Mounting Configuration / Land Pattern
Product Marking
The component will be lasermarked with a "CV110-1"
product label with a four-digit 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 Classification: Class 1B
Value: Passes
!500 V to <1000 V
Test:
Human Body Model (HBM)
Standard:
JEDEC Standard JESD22-A114
ESD Classification: Class III
Value: Passes
!500 V to <1000 V
Test:
Charged Device Model (CDM)
Standard:
JEDEC Standard JESD22-C101
MSL Rating:
Level 1 at +250
C convection reflow
Standard:
JEDEC Standard J-STD-020B
Functional Pin Layout
Pin FUNCTION Pin FUNCTION
1
RF Amp Output
15
LO Amp Input
2 GND 16 GND
3 N/C 17
LO
Amp
Bias
4 GND 18 GND
5 IF
Feedthru
Port 19
N/C
6 GND 20 GND
7
Mixer RF / IF Port
21
IF Amp Output/Bias
8 GND 22 GND
9
N/C
23
IF Amp Input
10 GND 24 GND
11
Mixer LO Input
25
IF Feedthru Port
12 GND 26 GND
13 LO
Amp
Output 27 RF
Amp
Input
14 GND 28 GND
PDF 
ZIP