IAM-91563-TR1G Avago Technologies US Inc., IAM-91563-TR1G Datasheet - Page 6

• Manufacturer Part Number: IAM-91563-TR1G
• Description: MIXER RFIC GAAS 3V SOT-363
• Manufacturer: Avago Technologies US Inc.
• Series: IAM-91563r

Specifications of IAM-91563-TR1G

• Rf Type: Cellular, ISM, PCS, PHS, WLL
• Frequency: 800MHz ~ 6GHz
• Number Of Mixers: 1
• Gain: 7.7dB
• Noise Figure: 11dB
• Secondary Attributes: Down Converter
• Current - Supply: 12mA
• Voltage - Supply: 3V
• Package / Case: 6-TSSOP, SC-88, SOT-363
• Frequency Range: 0.8GHz To 6GHz
• Supply Voltage Range: 3V
• Rf Ic Case Style: SOT-363
• No. Of Pins: 6
• Peak Reflow Compatible (260 C): Yes
• Frequency Max: 6GHz
• Noise Figure Typ: 8.5dB
• Termination Type: SMD
• Rohs Compliant: Yes
• Operating Supply Voltage: 3V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

IAM-91563 Applications Information Introduction
The IAM-9563 is a miniature downconverter developed
for use in superheterodyne receivers for commercial wire-
less applications with RF bands from 800 MHz to 6 GHz.
Operating from only 3 volts, the IAM-9563 is an excellent
choice for use in low current applications such as: .9 GHz
Personal Communication Systems (PCS) & Personal Handy
System (PHS),  GHz Digital European Cordless Telephone
(DECT), and 800 MHz cellular telephones (e.g., GSM, NADC,
JDC). Combined with Avago’s other RFICs and discrete
components housed in the same ultra-miniature SOT-363
package, the IAM-9563 also provides flexible, building-
block solutions for WLAN’s and wireless datacomm such
as PCMCIA RF modems as well as many Industrial, Sci-
entific and Medical (ISM) systems operating at 900 MHz,
.5 GHz, and 5.8 GHz.
The IAM-9563 is a 3-port, downconverting RFIC mixer of
the cascode (common source - common gate) type that
uses a low level (-5 dBm) local oscillator (LO) to convert an
RF signal in the 800 MHz to 6 GHz range to an IF between
50 and 700 MHz. The basic mixing function takes place in
a cascode connected pair of FETs as shown in Figure 7.
Figure 17. Cascode FET Mixer.
The received RF signal is connected to the gate of FET
and the LO is applied to the gate of FET. The purpose of
FET is to vary the transconductance of FET over a highly
nonlinear region at the rate of the LO frequency. This pro-
duces the nonlinearity required for frequency mixing to
take place. This type of mixer is also known as a “transcon-
ductance mixer. ” The IF is taken from the drain of FET.
An advantage of the cascode type of design is the inher-
ent isolation between the gates of the two FETs which re-
sults in very good LO-to-RF isolation. An integrated buffer
amplifier between the LO input and the gate of FET not
only increases the LO-RF isolation but also reduces the
amount of LO input power required by the mixer.
The IAM-9563 uses an innovative bias regulation circuit
that realizes several benefits to the designer. First, the
IAM-9563 operates with a single, positive device voltage
from .5 to 5 volts with stable performance over a wide
temperature range. Second, a unique feature of the IAM-
9563 allows the device current to be easily increased by
adding an external resistor to boost device current and
increase linearity.
6
LO
RF
FET 2
FET 1
IF
Using a minimum of external components with a standard
bias of 3 volts/9 mA and LO power of -5 dBm, the IAM-9563
mixer achieves an RF to IF conversion gain of 9 dB at .9 GHz
with a noise figure of 8.5 dB and an input third order inter-
cept point of -6 dBm. LO-to-IF isolation is greater than 35
dB. Setting the bias for the higher linearity/higher current
mode (approximately 6 mA) along with an LO drive level
of - dBm will boost the input IP
Test Circuit
The circuit shown in Figure 8 is used for 00% RF and DC
testing. The test circuit is impedance matched for an RF of
890 MHz and an IF of 50 MHz. The LO is set at 640 MHz and
-5 dBm for low side conversion. (High side conversion with an
LO of 40 MHz would produce similar performance.) The RF
choke at the IF port is used to provide DC bias. Tests in this cir-
cuit are used to guarantee the G
(I
Figure 18. Test Circuit.
Specifications and Statistical Parameters
Several categories of parameters appear within this data
sheet. Parameters may be described with values that are
either “minimum or maximum, ” “typical, ” or “standard devia-
tions. ”
The values for parameters are based on comprehensive
product characterization data, in which automated mea-
surements are made on of a minimum of 500 parts taken
from 3 non-consecutive process lots of semiconductor
wafers. The data derived from product characterization
tends to be normally distributed, e.g., fits the standard “bell
curve. ”
Parameters considered to be the most important to system
performance are bounded by minimum or maximum val-
ues. For the IAM-9563, these parameters are: Conversion
Gain (G
of these guaranteed parameters is 00% tested.
Values for most of the parameters in the table of Electri-
cal Specifications that are described by typical data are the
mathematical mean (µ), of the normal distribution taken
from the characterization data. For parameters where mea-
surements or mathematical averaging may not be practical,
such as the Typical Reflection Coefficients table or perfor-
mance curves, the data represents a nominal part taken
from the “center” of the characterization distribution. Typi-
cal values are intended to be used as a basis for electrical
design.
d
) parameters shown in the table of Electrical Specifications.
250 MHz
IF
V
test
d
Z = 50
220 nH
500 pF
), Noise Figure (NF
68 nH
100 pF
(2)
4.7 pF
test
I=10.4 mm
0.5 pF
Z = 50
), and Device Current (I
Z = 110
test
3
to approximately 0 dBm.
, NF
test
1890 MHz
1640 MHz
, and Device Current
RF
LO
d
). Each