Rev 1 - November 2008
©2008 Semtech Corp.
SX1781
www.semtech.com
Page 13
PLL Frequency Synthesizer with integrated VCO
ADVANCED COMMUNICATIONS & SENSING FINAL
DATASHEET
12. Application Schematics
The SX1781 is typically used as a local Oscillator in a superheterodyne transmitter or receiver.
Figure 5. Application Example
SX1781T
Mixer
Reference
Signal
Aerial
IF Output / Input
SPI Master
RF
port
Rev 1 - November 2008
©2008 Semtech Corp.
SX1781
www.semtech.com
Page 14
PLL Frequency Synthesizer with integrated VCO
ADVANCED COMMUNICATIONS & SENSING FINAL
DATASHEET
13. Layout Information
13.1. Package Outline Drawing
13.2. Recommended land Pattern
Rev 1 - November 2008
©2008 Semtech Corp.
SX1781
www.semtech.com
Page 15
PLL Frequency Synthesizer with integrated VCO
ADVANCED COMMUNICATIONS & SENSING FINAL
DATASHEET
14. Revision Status / History
The Revision Status, as shown in top right corner of the datasheet, may be DRAFT, PRELIMINARY, or FINAL, and refers to
the status of the Device (not the datasheet), with the design cycle. DRAFT status is used when the design is being realized
but is not yet physically available, and the datasheet content reflects the intention of the design. The datasheet is raised to
PRELIMINARY status when initial prototype devices are physically available, and the datasheet content more accurately
represents the realization of the design. The datasheet is only raised to FINAL status after the device has been fully
characterized, and the datasheet content updated with measured, rather than simulated parameter values.
Revision Reference Description of changes
1 14-Nov-08 First release of the Final version

SX1781IMLTRT

Mfr. #:
Manufacturer:
Semtech
Description:
Phase Locked Loops - PLL PLL FREQ SYNTH WITH VCO
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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