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IAM-91563 데이터시트 PDF




AVAGO에서 제조한 전자 부품 IAM-91563은 전자 산업 및 응용 분야에서
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부품번호 IAM-91563 기능
기능 3V Downconverter
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IAM-91563 데이터시트, 핀배열, 회로
IAM-91563
0.8–6 GHz 3V Downconverter
Data Sheet
Description
Avago’s IAM-91563 is an economical 3V GaAs MMIC mixer
used for frequency down-conversion. RF frequency cover-
age is from 0.8 to 6 GHz and IF ­coverage is from 50 to 700
MHz. Packaged in the SOT-363 ­package, this 4.0 sq. mm.
package requires half the board space of a SOT-143 and
only 15% the board space of an SO‑8 package.
At 1.9 GHz, the IAM-91563 ­ provides 9 dB of conversion
gain, thus eliminating an RF or IF gain stage normally
needed with a lossy mixer. LO drive power is nominally
only -5 dBm, eliminating an LO buffer amplifier. The 8.5 dB
noise figure is low enough to allow the system to use a
low cost LNA. The
system linearity for
-m6 odsBt mcomInmpuetrcIiPa3l ­
provides adequate
applications, but is
adjustable to 0 dBm.
The circuit uses GaAs PHEMT technology with proven reli-
ability, and uniformity. The MMIC ­consists of a cascode FET
structure that provides unbalanced gm modulation type
mixing. An on-chip LO buffer amp drives the mixer while
bias circuitry allows a single +3V supply (through a choked
IF port). The LO port is internally matched to 50 Ω. The
RF and IF ports are high impedance and require external
matching networks.
Surface Mount Package: SOT-363 (SC-70)
Pin Connections and Package Marking
MGA-86563 Pkg
LO 1
6 IF and Vd
GND 2
5 GND
RF 3
4 SOURCE
BYPASS
Note:
1. Package marking provides orientation and identification.
Features
Lead-free Option Available
+0 dBm Input IP3 at 1.9 GHz
Single +3V Supply
8.5 dB SSB Noise Figure at 1.9 GHz
9.0 dB Conversion Gain at 1.9 GHz
Ultra-miniature Package
Applications
Downconverter for PCS, PHS, ISM, WLL, and other
Wireless Applications
Attention: Observe precautions for
handling electrostatic ­sensitive devices.
ESD Human Body Model (Class 0)
Refer to Avago Application Note A004R:
Electrostatic Discharge Damage and Control.
Simplified Schematic
LO
1
RF
3
IF and Vd
6
SOURCE
BYPASS
4
GROUND
2, 5





IAM-91563 pdf, 반도체, 판매, 대치품
IAM-91563 Typical Performance, TC = 25°C, Vd= 3.0 V, RF=1890 MHz, LO = -5 dBm, IF = 250 MHz, unless otherwise stated.
12 12
12
10 10
10
88
6
TA = +85 C
6
TA = 3.3V
TA = +25 C
TA = 3.0V
4
TA = -40 C
4
TA = 2.7V
8
6 TA = +85 C
TA = +25 C
4 TA = -40 C
2
0 100 200 300 400 500 600 700
IF FREQUENCY (MHz)
Figure 10. SSB Noise Figure vs. Frequency and
Temperature.
2
0 100 200 300 400 500 600 700
IF FREQUENCY (MHz)
Figure 11. Conversion Gain vs. Frequency and
Supply Voltage.
2
0 100 200 300 400 500 600 700
IF FREQUENCY (MHz)
Figure 12. Conversion Gain vs. Frequency and
Temperature.
14
NF
12
10
8
GAIN
6
4
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1
LO POWER (dBm)
Figure 13. Available Conversion Gain and Noise
Figure vs. LO Drive Power.
0
-2
IP3
-4
-6
-8 P1 dB
-10
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1
LO POWER (dBm)
Figure 14. One dB Compression and Input Third
Order Intercept vs. LO Drive Power.
0
-2 RF-IF
-4
-6 LO-IF
-8
-10 LO-RF
-12
-14
-16
-18
-20
01 2 3 4 56
RF FREQUENCY (GHz)
Figure 15. Isolation (LO-RF, RF-IF, LO-IF) vs.
Frequency with no RF and IF Matching
Networks.
0
-4 RF-LO
-8
-12
-16
-20
-24 RF-IF
-28
-32
-36 LO-IF
-40
01 2 3 4 56
RF FREQUENCY (GHz)
Figure 16. Isolation (RF-LO, RF-IF, LO-IF) vs.
Frequency with RF and IF Matching Networks.


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IAM-91563 전자부품, 판매, 대치품
To assist designers in optimizing not only the immedi-
ate circuit using the IAM-91563, but to also optimize and
evaluate trade-offs that affect a complete wireless system,
the standard deviation (σ) is provided for many of the Elec-
trical Specifications parameters (at 25°) in addition to the
mean. The standard deviation is a measure of the variabil-
ity about the mean. It will be recalled that a normal distri-
bution is completely ­described by the mean and standard
deviation.
Standard statistics tables or calculations provide the prob-
ability of a parameter falling between any two values,
usually symmetrically located about the mean. Referring
to Figure 12 for example, the probability of a parameter
being between ±1σ is 68.3%; between ±2σ is 95.4%; and
between ±3σ is 99.7%.
68%
95%
99%
-3σ -2σ -1σ Mean (µ) +1σ +2σ +3σ
(typical)
Parameter Value
Figure 19. Normal ­Distribution.
Phase Reference Planes
The positions of the reference planes used to specify Re-
flection Coefficients for this device are shown in Figure 20.
As seen in the illustration, the reference planes are located
at the point where the package leads contact the test cir-
cuit.
REFERENCE
PLANES
TEST CIRCUIT
Figure 20. Phase Reference Planes.
RF Layout
An RF layout similar to the one in Figure 21 is suggested
as a starting point for microstripline designs using the
IAM-91563 mixer. This layout shows the capacitor for the
Source Bypass pin and the optional resistor used to in-
crease bias current. Adequate grounding is important to
obtain maximum per­formance and to maintain stability.
Both of the ground pins of the MMIC should be connect-
ed to the RF groundplane on the backside of the PCB by
means of plated through holes (vias) that are placed near
the package terminals. As a minimum, one via should be
located next to each of the ground pins to ensure good
RF grounding. It is a good practice to use multiple vias to
further minimize ground path inductance.

C
R
Figure 21. RF Layout.
It is recommended that the PCB pads for the ground pins
not be connected together underneath the body of the
package. PCB traces hidden under the package cannot be
adequately inspected for SMT solder quality.
PCB Material
FR-4 or G-10 printed circuit board materials are a good
choice for most low cost wireless applications. Typi-
cal board thickness is 0.020 to 0.031 inches. Thicknesses
greater than 0.031 inch began to introduce excessive
inductance in the ground vias. The width of the 50Ω mi-
crostriplines on PC boards in this thickness range is also
very convenient for mounting chip components such as
the series inductor at the input or DC blocking and bypass
capacitors.
For applications using higher frequencies such as the 5.8
GHz ISM band, the additional cost of PTFE/glass dielectric
materials may be warranted to minimize transmission line
loss at the mixer’s RF input. An additional consideration
of using lower cost materials at higher frequencies is the
degradation in the Q’s of transmission lines used for im-
pedance matching.
Biasing
The IAM-91563 is a voltage-biased device and is designed
to operate in the “normal mode” from a single, +3 volt
power supply with a typical current drain of only 9 mA.
The internal current regulation circuit allows the mixer to
be operated with voltages as high as +5 volts or as low as
+1.5 volt.
The device current can be increased up to 20 mA by
adding an external resistor from the Source Bypass pin
to ground. This feature makes it possible to operate the
IAM-91563 in the “high power mode” to achieve greater
linearity. Refer to the section titled “High Linearity Mode”
for information on applications and performance when
using this feature.

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관련 데이터시트

부품번호상세설명 및 기능제조사
IAM-91563

3V Downconverter

AVAGO
AVAGO
IAM-91563

0.8-6 GHz 3V Downconverter

Agilent(Hewlett-Packard)
Agilent(Hewlett-Packard)

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