MA-COM SA65-0003

Down Converter, 1500 - 2000 MHz
SA65-0003
V 1.00
Features
n
n
n
n
n
n
n
QSOP-16
LNA Mixer integration.
Typical conversion gain of 7 dB.
Typical Two-Tone IM Ratio of ≥ 50 dBm.
LO Drive-Level: +13 dBm.
Surface Mount QSOP16 Package.
Low Cost/High Performance.
50 ohm Nominal Impedance.
Description
M/A-COM’s SA65-0003 is an integrated assembly containing a GaAs FET MMIC LNA and GaAs FET mixer. This
device is packaged in a 16-leaded QSOP plastic surface
mount package. The amplifier can be biased with either
+3V or +5V, the mixer requires no DC bias. The conversion
gain of the integrated combination is typically 6 dB at +3V
bias and 8 dB at +5V bias. The SA65-0003 is ideally
suited for RF/IF communications applications requiring
down conversion with some gain.
This MCM contains a mixer that is fabricated using a
mature 1-micron GaAs process, it also contains an LNA
that is fabricated using a low cost mature 0.5-micron gate
length GaAs MESFET process. Both die feature full
passivation for increased performance and reliability.
Functional Block Diagram
Recommended PCB Layout
Down Converter, 1500 - 2000 MHz
SA65-0003
V 1.00
Electrical Specifications TA = +25°C, Z0=50 Ohms, RF = -10 dBm1,
LO = +13 dBm, IDD ≈ 45 mA
Test Conditions1
Units
Min
Typical
Max
LNA +3V
LNA +5V
dB
dB
3.1
4.6
6.0
8.0
6.6
8.8
Isolation 4
LO to RF IN
LO to IF
dB
dB
29
19
32
23
—
—
Reverse Isolation5
LNA +3V
dB
30
40
—
VSWR
LO
RF IN
IF
Ratio
Ratio
Ratio
—
—
—
1.4:1
1.9:1
1.9:1
—
2.5:1
2.1:1
Input IP3 1,2,3
LNA +3V
LNA +5V
dB
dB
13
21
17.5
25
—
—
Parameter
Conversion Gain
1.
2.
3.
4.
5.
6.
7.
6,7
For IP3 measurements, RFIN = -24 dBm, this low RF IN level gets amplified through the LNA.
For IP3 measurements, RFIN2 = RFIN1 + 10 MHz, LO = RFIN1—140 MHz.
For IP3 measurements, IP3 = IMR/2 + PIN.
RF IN to IF Isolation is typically 0 dB.
Reverse Isolation is measured from IF to RFIN with the IF at –10 dBm, LO at +13 dBm.
The amplifier has a normal gain of 12.5 dB, 3V bias and 14.0 dB, 5V bias. Amplifier typical Noise Figure = 1.5 dB.
NFT = NF1 + (NF2 - 1)/G1
Absolute Maximum Ratings 8
Parameter
Pin Configuration
Absolute Maximum
Pin #
Function
Description
9
+17 dBm
1
GND
RF and DC Ground
LO Drive Power 9
+23 dBm
2
RES
External current control (optional)
VDD
+10 VDC
3
GND
RF and DC Ground
Current 10
80 mA
4
RF IN
RF Input of the amplifier
5
GND
RF and DC Ground
6
LO
LO port of the mixer
7
GND
RF and DC Ground
RF Input Power
Channel Temperature 11
+150°C
Operating Temperature
-40°C to +85°C
Storage Temperature
-65°C to +150°C
8.
Operation of this device above any one of these
parameters may cause permanent damange.
9. Total power for RF and LO ports should not exceed +23
dBm.
10. When pin #2 is used to increase current—see note 6
above.
11. Thermal resistance (?jc) = +95°C/W.
8
IF
IF port of the mixer
9
RF GND
RF and DC Ground
10
GND
RF and DC Ground
11
RF
12
RF port of the mixer
12
GND
RF and DC Ground
12
13
RF OUT
14
GND
RF output of the amplifier
RF and DC Ground
15
VDD
Positive supply voltage
16
GND
RF and DC Ground
12. The output port of the amplifier, RFOUT, and the input
port of the mixer, RF, are adjacently placed so that an
external filter can be used.
Specifications subject to change without notice.
n North America: Tel. (800) 366-2266
n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
2
Down Converter, 1500 - 2000 MHz
SA65-0003
V 1.00
External Circuitry Parts 13
Spurious Table
Part
Value
Purpose
C1
47 pF
DC Block
4X
C2
47 pF
By-pass
C3
3.3 pF
LO Port Matching Network
L1
3.9 nH
Tuning
Harmonic
L2
3.0 nH
LO Port Matching Network
of LO (n)
L3
12 nH
RF Choke
R1
See Note 14
Optional Current Control
R2
5.1 k Ohms
DC Return
R3
330 Ohms
LO Port Matching Network
13. All external circuitry parts are readily available, low cost
surface mount components (.060 in. x .030 in. or .080 in.
x .050 in.).
14. Pin 2 allows use of an external resistor to ground for optional higher current. For 20 mA operation, no resistor is
used.
For IDD ≈ 30 mA, R2 = 43 Ohms
For IDD ≈ 45 mA, R2 = 15 Ohms
For IDD ≈ 60 mA, R2 = 10 Ohms
-12
-37
-65
-75
-75
-1.9
-39
-72
-77
-77
-2.8
-29
-68
-66
-74
3X
7.1
-30
-70
-77
-75
7.0
-27
-37
-68
-74
2X
11.8
-27
-47
-75
-75
4.5
0
-48
-69
-74
11.8
0
-58
-76
-76
N/A
-5
-34
-69
-70
N/A
-5
-46
-75
-70
0X
1X
2X
3X
4X
1X
0X
Harmonic of RFIN (m)
The spurious table shows the spurious signals resulting from
the mixing of the RFIN and LO input signals, assuming down
conversion. The number of dB below the conversion loss
level indicates the mixing products. The lower frequency
mixing term is shown for two different input levels. The top
number is for an RFIN power level of –19 dB; the lower
number is for –29 dB.
Assuming the LNA gain is
approximately 14 dB, the mixer input will see approximately
–5 dB and –15 dB.
|mFRF - nFLO|, RF = -19 dB
|mFRF - nFLO|, RF = -29 dB
RF = 1850 MHz
LO = 1710 MHz
Typical Performance Curves
Isolation at +3V
Gain
+5V
L-R
L-I
40
8
30
Isolation (dB)
Gain (dB)
+3V
10
6
4
2
20
10
0
1.5
1.6
1.7
1.8
1.9
2.0
Frequency (GHz)
Specifications subject to change without notice.
n North America: Tel. (800) 366-2266
n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
1.5
1.6
1.7
1.8
1.9
2.0
Frequency (GHz)
3
Down Converter, 1500 - 2000 MHz
SA65-0003
V 1.00
Typical Performance Curves
VSWR at +3V
IIP3
+5V
IF
3.0
15
2.5
VSWR
IIP3 (dB)
+3V
20
10
5
LO
RF
2.0
1.5
0
1.0
1.5
1.6
1.7
1.8
1.9
2.0
Frequency (GHz)
1.7
1.8
1.9
2.0
Frequency (GHz)
Ordering Information
Part Number
Package
SA65-0003
Bulk Packaging
SA65-0003TR
Tape and Reel (1K Reel)
SA65-0003-TB
Units Mounted on Test Board
Specifications subject to change without notice.
n North America: Tel. (800) 366-2266
n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
4