SKY73070-11 Skyworks Solutions Inc, SKY73070-11 Datasheet - Page 3

• Manufacturer Part Number: SKY73070-11
• Description: IC MIXER DWNCONVRSN SGL 20-MCM
• Manufacturer: Skyworks Solutions Inc

Specifications of SKY73070-11

• Rf Type: CDMA, EDGE, GSM, UMTS, WCDMA
• Frequency: 700MHz ~ 1GHz
• Number Of Mixers: 1
• Gain: 9.5dB
• Noise Figure: 8.3dB
• Secondary Attributes: Down Converter
• Current - Supply: 210mA
• Voltage - Supply: 4.75 V ~ 5.25 V
• Package / Case: 20-MCM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 863-1085-2

Functional Description
The SKY73070 is a high gain single mixer, optimized for base
station receiver applications. The device consists of a low loss RF
balun, high linearity passive mixer, and a low noise IF amplifier.
An LO amplifier is also included that allow the SKY73070 to
connect directly to the output of a Voltage Controlled Oscillator
(VCO). This eliminates the extra gain stages needed by most
discrete passive mixers.
RF Balun and Passive Mixer
The RF balun provides a single ended input, which can easily be
matched to 50 Ω using a simple external matching circuit. The RF
balun offers very low loss, and excellent amplitude and phase
balance.
The high linearity SKY73070 is a passive, double balanced mixer
that provides a very low conversion loss, and excellent 3
Input Insertion Point (IIP3).
Additionally, the balanced nature of the mixer provides for high
port-to-port isolation.
LO Buffer
An LO buffer allows the input power of the SKY73070 to be in the
range of ±6 dBm. The LO section is optimized for high-side LO
Table 2. SKY73070 Absolute Maximum Ratings (Note 1)
Note 1: Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other
Note 2: Nominal thermal resistance (junction to center ground pad) is 5.1 °C/W.
Supply voltage, +5 V
Supply current
RF input power
LO input power
Operating case temperature
Junction temperature (Note 2)
Storage case temperature
parameters set at or below their nominal value.
200716F • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • January 21, 2008
Parameter
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
VCC
I
P
P
T
T
T
CC
C
J
STG
RF
LO
Symbol
rd
Order
injection. However, the LO can be driven over a wide frequency
range with only slight degradation in performance.
IF Amplifier
The SKY73070 includes a high dynamic range IF amplifier that
follows the passive mixer in the signal path. The outputs require a
supply voltage connection using inductive chokes. These choke
inductors should be high-Q and have the ability to handle 200 mA
or greater.
A simple matching network allows the output ports to be matched
to a balanced 200 Ω impedance. The IF amplifier is optimized for
IF frequencies between 40 and 300 MHz. The IF amplifier can be
operated outside of this range, but with a slight degradation in
performance.
Electrical and Mechanical Specifications
The absolute maximum ratings of the SKY73070 are provided in
Table 2 and the recommended operating conditions in Table 3.
Electrical characteristics for the SKY73070 are provided in
Table 4.
Typical performance characteristics for the SKY73070 are
illustrated in Figures 3 through 18.
Minimum
–40
–40
4.5
DATA SHEET • SKY73070 DOWNCONVERSION MIXER
Maximum
+20.0
+20.0
+150
+125
+85
240
5.5
Units
dBm
dBm
mA
°C
°C
°C
V
3