05/2005
ACU50752
CA TV/TV/Cable Modem Upconverter
MMIC
Data Sheet - Rev 2.1
Figure 1: Functional Block Diagram
FEATURES
•Integrated Monolithic Upconverter
•Compatible with all digital and analog
modulation types
•5 Volt Operation
•Low Power Consumption
•Low Noise Figure
•High Conversion Gain
•Low Distortion
•Excellent Oscillator Purity and Phase Noise
•Remote Shutdown Feature
•Small Size
•Low Cost
•High Reliability
•RoHS-Compliant Package Option
PRODUCT DESCRIPTION
S3 Package
Modified 16 Pin SOIC
The ACU50752 is a Monolithic GaAs IC designed to
perform the upconverter functions in a double
conversion tuner: gain block, local oscillator and
balanced mixer. The specifications meet the
requirements of CATV, TV and Cable Modem
applications. Offered in a modified 16-lead SOIC
package and requiring only a single polarity 5 V supply
(or 3.5 V, with slightly reduced performance), the IC
is well suited for applications where small size, low
cost, low auxiliary parts count and a no-compromise
performance is important. It provides tuner
manufacturers the opportunity to reduce cost by
lowering the component count and decreasing the
amount of labor-intensive production alignment
steps, while significantly improving performance and
reliability.
PHASE
8
5
6
7
SPLITTER
OSC
2
3
4
1
MXR
9
12
11
10
15
14
13
16
LOW NOISE
AMP
RIN
+90 - 90
IF1, +VDD
GND
GND
RFIN
GND GND*
VDDLO
TCKT
GND
OSCOUT
GND
IF2,+VDD
Inductor
* Varactor return. Do not connect to common ground