Preliminary
Product Description
Sirenza Microdevice's S510069-28Z is a Variable
Gain Amplifier (VGA), designed for use in Digital
and Analog RF tuners and linear applications
requiring IF signal amplification and control before
the A/D converter. This IC consists of two
amplifier stages that are AC coupled. Gain control
is delayed between the two stages for minimal
noise figure impact over the first 30 dB of gain
control while maintaining excellent linearity
performance. This product is RoHS compliant.
Functional Block Diagram
S510069-28Z
AGC Amplifier
Pb
RoHS Compliant
&
Green
Package
8 pin MSOP Package
Product Features
•
Low Distortion: IM3<-60 dBc@ 1 V
PP
Output
• 55 dB Gain Control Range (12 dB to 69 dB Gain)
• Low Power Consumption (275 mW)
• 3.3 V Single Supply Operation
Applications
• Digital & Analog TV Tuners
• Digital TV, CATV and DBS Set-Top Receivers
• PCTV
• Video Cards
Electrical Specifications (T
A
=25°C, V
DD
=3.3V, unless otherwise specified)
Typical App C kt.
Optional App C kt.
Min.
30
62
5
0.0
57
55
1.0
16.0
500
1K
3.1
62
3.3
78
207
3.5
82
3.1
62
500
1K
3.3
78
207
3.5
82
16.0
3.0
Typ.
Max.
100
Symbol
RFIN
GMAX
GMIN
VAGC
AGC
IM3
V out
NF
Z
IN
Z
OUT
V
DD
I
DD
R
TH
Parameters
U nit
RF Input Frequency Range
Maxi mum Gai n, RF=44MHz, VAGC =3.0V
Mi ni mum Gai n, RF=44MHz, VAGC =0.0V
AGC Voltage
AGC D ynami c Range, AGC =0.0V to 3.0 V
1 Vpp out, 1K Load over 50 dB range
IF Output Level, D i fferenti al Output, 1Kohm load
Noi se Fi gure, VAGC = 3.0 V
Input Impedance (Si ngle Ended)
Output Impedance (Open D rai n)
Supply Voltage
Supply C urrent
Thermal Resi stance
MHz
dB
dB
V
dB
dB C
V pp
dB
Ohms
Ohms
V
mA
°C /W
Min.
30
66
11
0.0
55
60
57
63
1.0
69
Typ.
Max.
100
70
13
3.0
Performance tests and ratings for Sirenza Microdevices’ products were performed internally by Sirenza and measured using specific computer systems and/or components and reflect the approximate
performance of the products as measured by those tests. Any difference in circuit implementation, test software, or test equipment may affect actual performance. The information provided herein is
believed to be reliable at press time and Sirenza Microdevices assumes no responsibility for the use of this information. All such use shall be entirely at the user’s own risk. Prices and specifications for
Sirenza Microdevices’ products are subject to change without notice. Buyers should consult Sirenza Microdevices’ standard terms and conditions of sale for Sirenza’s limited warranty with regard to its
products. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. Sirenza Microdevices does not authorize or warrant any product for use in life-
support devices and/or systems.
303 S. Technology Court, Broomfield, CO 80021
303-327-3030
1
www.sirenza.com
EDS-104884 Rev B
11/01/2006
SIRENZA [ SIRENZA MICRODEVICES ]
