CATV/TV/Cable Modem Upconverter
MMIC
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ACU50752
Data Sheet - Rev 0.0
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
S3 Package
Modified 16 Pin SOIC
PRODUCT DESCRIPTION
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.
IF
1,
+V
DD
1
MXR
GND 2
16 IF
2
, +V
DD
15 GND
hut Down/
urrent Adjust
3
+90
- 90
14 OSC
OUT
PHASE
SPLITTER
4
GND
5
13
GND
12
RF
IN
6
LOW NOISE
AMP
OSC
11 T
CKT
R
IN
Inductor
7
10 V
DDLO
GND
8
9
GND*
* Varactor return. Do not connect to common ground
Figure 1: Functional Block Diagram
08/2001