MAX12005ETM+ Maxim Integrated Products, MAX12005ETM+ Datasheet

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MAX12005ETM+

Manufacturer Part Number
MAX12005ETM+
Description
RF Amplifier Integration of Two L ow-Noise GPS Amplifi
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX12005ETM+

Lead Free Status / RoHS Status
Lead free / RoHS Compliant
19-5554; Rev 0; 9/10
The MAX12005 satellite IF switch IC is designed for
multi-user applications supporting two quad universal
low-noise blocks (LNBs) to be matrix switched to four
satellite receivers. The system can be easily expanded
to accept 16 satellite IF inputs using the cascade option
and one additional satellite IF switch IC. A configuration
of eight satellite IF inputs to eight satellite receivers is
also possible by using two ICs and adding eight input
splitters. The insertion loss of these splitters can be com-
pensated by a +6dB or +12dB input gain select.
There are two ways to control the switch function.
Each IC contains four DiSEqCK 2.0 decoders and four
alternate tone/voltage decoders. The decoders use an
integrated trimmed oscillator, simplifying the MAX12005
implementation into any system. There are four opera-
tional modes, which include LNB mode (for use within
the LNB), cascade master mode, cascade slave mode,
and single mode.
The satellite IF switch is designed on an advanced SiGe
process and is available in a lead-free 48-pin TQFN
surface-mount package (7mm x 7mm).
DiSEqC is a trademark of EUTELSAT.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Direct Broadcast Satellite Receivers
Satellite IF Distribution
L-Band Distribution
_______________________________________________________________ Maxim Integrated Products 1
General Description
Applications
S
S
S
S
S
S
S
S
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed paddle.
MAX12005ETM+
8-Input-to-4-Output Matrix Switch
Expandable to 16 Inputs with Cascade Master/
Slave Option
950MHz to 2150MHz Operation
Greater than 30dB Switch Isolation
0/+6/+12dB Input Stage Gain Selection to
Compensate for Splitter Insertion Loss
Four Integrated DiSEqC 2.0 Decoders with
Integrated Oscillator
Alternate Tone/Voltage Detection
ESD Protected to 2kV HBM
Gain Step for All Input Stages Is Commonly
Controlled Through an Analog Select Pin
PART
Satellite IF Switch
-40NC to +85NC
TEMP RANGE
Ordering Information
PIN-PACKAGE
48 TQFN-EP*
Features

Related parts for MAX12005ETM+

MAX12005ETM+ Summary of contents

Page 1

... Gain Step for All Input Stages Is Commonly Controlled Through an Analog Select Pin Four Integrated DiSEqC 2.0 Decoders with S Integrated Oscillator Alternate Tone/Voltage Detection S ESD Protected to 2kV HBM S Ordering Information PART TEMP RANGE MAX12005ETM+ -40NC to +85NC +Denotes a lead(Pb)-free/RoHS-compliant package. *EP = Exposed paddle. Features PIN-PACKAGE 48 TQFN-EP* ...

Page 2

Satellite IF Switch ABSOLUTE MAXIMUM RATINGS V to GND ..........................................................-0.3V to +3.6V CC RFIN1–RFIN8 to GND ...........................................-0.3V to +1.5V CASCADE_IN1–CASCADE_IN4 to GND ..............-0.3V to +1.5V RFOUT1–RFOUT4 to GND ....................... -0. DISEQC_TX1–DISEQC_TX4 to GND .........-0. DISEQC_RX1–DISEQC_RX4 to ...

Page 3

AC ELECTRICAL CHARACTERISTICS (MAX12005 EV Kit +3.0V to +3.5V set to 0dB, RF inputs matched to 75I, RF output loads = 75I. Typical values are at +3.3V and at T noted.) (Note 1) PARAMETER Operation Frequency ...

Page 4

Satellite IF Switch (MAX12005 EV Kit +3.0V to +3.5V set to 0dB, RF inputs matched to 75I, RF output loads = 75I. Typical values are at +3.3V and at T Production tested at +25NC; guaranteed by ...

Page 5

TOP VIEW RFOUT3 GND V CC RFOUT2 GND V CC RFOUT1 GND MODE_SELECT GAIN_SELECT PIN NAME 1 RFIN1 10, 12, 14, 16, 18, 20, GND 22, 24, 35, 38, 41 ...

Page 6

Satellite IF Switch PIN NAME 25 DISEQC_TX4 26 DISEQC_RX4 27 DISEQC _TX3 28 DISEQC _RX3 29 DISEQC _TX2 30 DISEQC _RX2 31 DISEQC _TX1 32 DISEQC _RX1 33, 36, 39 RFOUT4 37 RFOUT3 40 ...

Page 7

MUX RFIN1 1 3 RFIN2 9:1 MUX 5 RFIN3 7 RFIN4 9:1 MUX RFIN5 9 11 RFIN6 9:1 MUX 13 RFIN7 15 RFIN8 Satellite IF Switch 33, 36, 39, 42 SATELLITE ...

Page 8

Satellite IF Switch Detailed Description The MAX12005 satellite IF switch features eight 75I inputs with three selectable gain steps of 0, +6dB, and +12dB. Each of the eight input amplifiers feeds into four nine-to-one multiplexers with the switching controlled by ...

Page 9

DiSEqC Slave Control Interface The DiSEqC interface is designed according to the DiSEqC Bus Functional Specification version 4.2. All framing bytes 0xE0 through 0xE7 are supported. The following address bytes are supported: RFOUT1 TO SAT RECEIVER 1 RFOUT2 TO SAT ...

Page 10

Satellite IF Switch Table 1 shows the coherence between the terms used by the DiSEqC standard and the pin names used by the MAX12005 along with the command sequences used to control switching. Table 2 lists the supported command bytes. ...

Page 11

Table 2. DiSEqC Slave Control Interface Command Bytes HEX VALUE COMMAND 0x00 Reset Reset DiSEqC decoder Clear reset flag 0x01 Clr Reset Clears Status_reg, bit 0 Set contention flag 0x04 Set Contend Sets Status_reg, bit 7 Return address only if ...

Page 12

Satellite IF Switch Table 2. DiSEqC Slave Control Interface Command Bytes (continued) HEX VALUE COMMAND Write to port group 0 0x38 Write N0 Controls Switch_reg, bits 7 downto 4 (Note 1) Read current frequency 0x50 LO string Reads Low_LOF_reg2/1 or ...

Page 13

Table 3. DiSEqC Slave Control Interface Registers (continued) ADDRESS BIT ACC 7 RW option 6 RW satellite 5 RW polarization 4 RW band Switch_reg 3 RW option_switchable 2 R satellite_switchable 1 R polarization_switchable 0 R band_switchable 7:4 R low_10GHz Low_LOF_reg_2 ...

Page 14

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 14 2010 Maxim Integrated Products © ...

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