Diodes ZXHF5002 - Manual

Issue 1 - June 2008 1 www.zetex.com
Zetex reserves the right to alter, without notice, the specifications, design or conditions of this product.
© Zetex Semiconductors plc 2008
Confidential
ZXHF5002
4:2 IF switch with integrated gain and control
Summary
The ZXHF5000 provides an integrated IF
solution for multiple output LNB and switch
box applications. The ZXHF5000 includes a 4
by 2 switch with 19dB of positive gain which
can be connected directly to the output of the
LNB or switch box eliminating the need for
cable drive amplifiers. The ZXHF5000 includes all the control required
for voltage and tone based systems providing a
reliable and highly integrated solution.
Features
• High linearity 4:2 switch
• Integrated cable drive amplifiers
• Integrated switch control - Tone and Voltage
• Wide bandwidth 200 to 2700MHz
• Gain 19dB, rising across band
• High isolation Typ. >30dB, 200 to 2150MHz
• OIP3 >15dBm, 200 to 2150MHz
• Reliable tone detector with unwanted
signal rejection filter
• Accurate voltage detector 14.0V to 15.5V
• Intelligent low power mode
• 3.3V operation
• Unconditionally stable
• Pin-out programmable for double-sided
assembly
Applications
• Twin universal LNB's
• Quad universal LNB's
• Multiple output LNB's
Figure 1 Typical low power twin universal LNB system
ZXHF
5002
ZABG
Series
Mixer
RF Gain Stages
GaAs HEMT FET
Set-top-box
Receiver 1
Set-top-box
Receiver 2
78L
06
78L
06
Vcc
IF Gain Stages and
Power Management