SKY72302-21 Skyworks Solutions Inc, SKY72302-21 Datasheet
SKY72302-21
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SKY72302-21 Summary of contents
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... The device’s fine step size can also be used for Doppler shift corrections. The SKY72302-21 has a phase noise floor of –80 dBc/ 6.1 GHz operation as measured inside the loop bandwidth. This is permitted by the on-chip low noise dividers and low divide ratios provided by the device’ ...
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... Quadrature (I/Q) Digital-to-Analog Converters (DACs), quadrature upconverters, and IF filters from the transmitter portion of the radio system. Figure 1 shows a functional block diagram for the SKY72302-21. The device package and pinout for the 28-pin Exposed Pad Thin Shrink Small Outline Package (EP-TSSOP) are shown in Figure 2. ...
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... The serial interface is a versatile three-wire interface consisting of three pins: Clock (serial clock), Data (serial input), and CS (chip select). It enables the SKY72302-21 to operate in a system where one or multiple masters and slaves are present. To perform a loopback test at start-up and to check the integrity of the board and processor, the serial data is fed back to the master device (e ...
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... DATA SHEET • SKY72302-21 FREQUENCY SYNTHESIZER Power Down The SKY72302-21 supports a number of power-down modes through the serial interface. For more information, see the Register Descriptions section of this document. Serial Interface Operation The serial interface consists of three pins: Clock (pin 1), Data (pin 27), and CS (pin 28). The Clock signal controls data on the two serial data lines (Data and CS) ...
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... NOTE: When in integer mode, the new divide ratios take effect as Direct Digital Modulation The high fractionality and small step size of the SKY72302-21 allow the user to tune to practically any frequency in the VCO’s operating range. This allows direct digital modulation by programming the different desired frequencies at precise instants ...
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... DATA SHEET • SKY72302-21 FREQUENCY SYNTHESIZER Case 1: To achieve a desired F of the synthesizer in 18-bit mode. Since the maximum internal reference frequency (F frequency is divided obtain fractional = 5900.4530 = 73.755663 The value to be programmed in the Main Divider Register is Round[N reg = Round[73.755663] – – (decimal) ...
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... Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 101216L • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 9, 2009 DATA SHEET • SKY72302-21 FREQUENCY SYNTHESIZER – N – 32)] ...
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... DATA SHEET • SKY72302-21 FREQUENCY SYNTHESIZER Case 1: To achieve a desired F divide ratio is 32, the reference frequency (F frequency divide ratio of 2 provides a reference frequency of 8 MHz. Therefore integer = = The value to be programmed in the Auxiliary Divider Register is reg integer = 50 – (decimal) = 000010010 (binary) Summary: · ...
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... Dual Synthesizers/PLLs (document number 101349). Register Descriptions Table 1 lists the 10 16-bit registers that are used to program the SKY72302-21. All register writes are programmed address first, followed directly with data. MSBs are entered first. On power-up, all registers are reset to 0x000 except registers at address 0x0 and 0x3, which are set to 0x006 ...
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... DATA SHEET • SKY72302-21 FREQUENCY SYNTHESIZER Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 10 September 9, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 101216L MSB Figure 6. Main Divider Register (Write Only) ...
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... Bit 8 Bit — — — — — — DATA SHEET • SKY72302-21 FREQUENCY SYNTHESIZER 1 0 LSB Auxiliary Synthesizer Dividend C1421 Bit 1 Bit 0 (LSB) Reference Divider — — — — — — Bit 6 Bit 5 (LSB) Reference Divider ...
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... Full Power Down = One-bit flag that powers down the SKY72302-21 except for the reference oscillator and the serial interface. When this bit is cleared, the SKY72302-21 is powered up. When this bit is set, the SKY72302- full power-down mode excluding the Mux_out signal (pin 3). Main Synthesizer Power Down = One-bit flag to power down the main synthesizer ...
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... When this bit is set, no address is presented with the modulation data samples (i.e., all transfers are bits long). DATA SHEET • SKY72302-21 FREQUENCY SYNTHESIZER 1 0 Full Power Down ...
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... Otherwise, problems related to moisture absorption may occur when the part is subjected to high temperature during solder assembly. The SKY72302-21 is rated to Moisture Sensitivity Level 3 (MSL3) at 260 C. It can be used for lead or lead-free soldering. Care must be taken when attaching this product, whether it is done manually production solder reflow environment ...
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... SKY72302-21 are provided in Table 6. The recommended operating conditions are specified in Table 7 and electrical specifications are provided in Table 8. Figure 16 provides a schematic diagram for the SKY72302-21. Figure 17 shows the package dimensions for the 28-pin EP-TSSOP and Figure 18 provides the tape and reel dimensions. ...
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... DATA SHEET • SKY72302-21 FREQUENCY SYNTHESIZER Table 5. SKY72302-21 Signal Descriptions ( Pin # Pin Name Type 20 CPout_aux Analog output 21 GNDcp_aux (Note 1) Power and ground 22 Fvco_aux Input 23 Fvco_aux Input 24 VCCcml_aux Power and ground (Note 1) 25 GNDdigital (Note 1) Power and ground 26 VCCdigital (Note 1) Power and ground ...
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... CP SINK ACCURACY 0 (VCC – 0 0.5 VCC –40 C < T < (VCC – 0.5 V) DATA SHEET • SKY72302-21 FREQUENCY SYNTHESIZER Min Typ Max (Note 2) 50 0.1 2.0 0.3 400 (Note 3) 6100 100 (Note 4) 1000 50 250 REF MAIN REF MAIN REF AUX –128 ...
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... DATA SHEET • SKY72302-21 FREQUENCY SYNTHESIZER Table 8. Electrical Characteristics (Note (VDD = Unless Otherwise Noted) A Parameter Digital Pins High level input voltage Low level input voltage High level output voltage Low level output voltage Timing – Serial Interface Clock frequency Data and CS set up time to Clock rising Data and CS hold time after Clock rising Note 1: Performance is guaranteed only under the conditions listed in this Table and is not guaranteed over the full operating or storage temperature ranges ...
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... Main Synthesizer Loop Filter Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 101216L • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 9, 2009 DATA SHEET • SKY72302-21 FREQUENCY SYNTHESIZER To Microprocessor 1 ...
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... Detail A All measurements are in millimeters Figure 17. SKY72302-21 28-Pin EP-TSSOP Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 20 September 9, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 101216L B ∅ ...
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... Cover tape size: 13.3 mm width 4. All measurements are in millimeters Figure 18. SKY72302-21 Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 101216L • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 9, 2009 DATA SHEET • ...
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... DATA SHEET • SKY72302-21 FREQUENCY SYNTHESIZER Ordering Information Model Name SKY72302-21 6.1 GHz Frequency Synthesizer Copyright © 2001, 2002, 2004- 2009 Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer ...