SiW1721B BLUETOOTH® RADIO MODEM 0 Features • Integrated RF transceiver and modem for Bluetooth wireless technology. SiW1721B Radio Modem • Manufactured using low-power 0.18-micron CMOS process technology. • Digital baseband interface connects directly to an integrated Bluetooth controller. • Direct conversion RF architecture improves receiver-blocking performance. Single-ended LNA ADC and Downconverter GFSK Demodulator Single-ended Driver DAC and Upconverter GFSK Modulator Reference PLL Modem Clock Generator CLK Circuit Analog Regulator Mobile Phone Chip Set Modem I/F & Data Radio Programming and Control Integrated Bluetooth Baseband SPI • Low out-of-band spurious emissions minimize interference with mobile phone operations. Reference Clock Digital Regulator Ext Power • Hardware AGC dynamically adjusts receiver performance in changing environments. Bluetooth Subsystem Using the SiW1721B Radio Modem • 50 Ω RF I/O does not need additional external impedance matching components. • On-chip voltage regulation simplifies system design. • -88 dBm receiver sensitivity and +2 dBm transmitter power typical performance specifications. • Bluetooth Specification V2.0 qualified. Complies with Bluetooth specifications V1.1, V1.2 and V2.0. Applications • Mobile phones with integrated controller for Bluetooth wireless technology. Summary The SiW1721B is a 2.4-GHz radio transceiver for Bluetooth wireless technology. This highly integrated transceiver is specifically designed for use with a third party Bluetooth baseband controller chipset requiring an external Bluetooth RF transceiver. Due to its low power CMOS process, the design minimizes current draw in both active and standby modes. The SiW1721B combines a radio transceiver and Gaussian Frequency Shift Keying (GFSK) modem with digital control and interface logic. The IC also incorporates analog and digital voltage regulators and a reference Phase Lock Loop (PLL) capable of accepting various reference clock frequencies. The level of integration enables a low system cost with fewer external components. The SiW1721B is packaged in a 5-by-5-mm, Pb-free, 32-pin QFN package that meets RoHS (Green) requirements. Operating temperature range is guaranteed from -40°C to +85°C. Ordering Information SiW1721B Bluetooth® Radio Modem See page 12 for details. Optimum Technology Matching® Applied Si BJT GaAs HBT Si Bi-CMOS SiGe HBT GaInP/HBT GaN HEMT GaAs MESFET 9Si CMOS SiGe Bi-CMOS RF Micro Devices, Inc. 7628 Thorndike Road Greensboro, NC 27409, USA Tel (336) 664 1233 Fax (336) 664 0454 http://www.rfmd.com 60 0076 R00F SiW1721B Radio Modem IC DS October 6, 2006 1 of 12 SiW1721B Description The following figure shows the SiW1721B Radio Modem functional block diagram. During the receive process, the radio signal is taken from the single-ended RF input pin that feeds into the low noise amplifier (LNA). The signal from the LNA is directly down-converted to I/Q baseband, filtered with an anti-aliasing filter, and converted to a digital signal with a high resolution analog-to-digital converter. The critical channel filtering is done in the digital domain for stable and repeatable performance. The signal is then processed by a high performance GFSK demodulator. The IC has multiple internal selfcalibration circuits to maintain stable and repeatable performance from part-to-part as well as over the full temperature range. The IC has two fully integrated regulators: one for the radio (analog regulator) and one for the digital logic (digital regulator). The digital regulator can be used to supply a Bluetooth baseband controller. Both regulators can be bypassed if external regulation is desired. Note: When bypassing the analog regulator, the VBATT_ANA and VCC_OUT pins must be tied together and the external analog voltage (1.8 V) should be applied to the VBATT_ANA pin. When bypassing the digital regulator, the VBATT_DIG pin should be left unconnected and the external digital voltage (1.8 V) should be applied to the VBB_OUT pin. The IC also provides power on reset and glitch-free clock start-up. A reference PLL can be enabled to support a number of different reference frequencies. PLL Control Clock Distribution VDD_IO VCC RESET_N VBB_OUT VCC_OUT VBATT_DIG VBATT_ANA BB_CLK XTAL_P/CLK CHG_PUMP VTUNE Digital control functions and a programming interface provide radio modem control and a flexible interface to external Bluetooth link controllers. Voltage Regulators and Power Distribution LNA ADC 0 90 RF_IO IDAC Internal 50-Ohm Match Network ADC PLL Synthesizer GFSK Modem RX_TX_DATA CD_TXEN DAC Power Control 0 90 TX_BIAS SPI_SS SPI_TXD SPI_RXD SPI_CLK DAC Serial Programming Interface (SPI) ENABLE_RM Register File System Control HOP_STROBE TX_RX_SWITCH SiW1721B Block Diagram Radio Interface An internal power control loop maintains a very stable RF_IO signal level over the full temperature range and from part to part. This means predictable and repeatable range at any temperature. Modem Interface The modem interface transfers the Bluetooth data between the SiW1721B Radio Modem and the ASIC. For reference purposes, the pin description table (Table 1) provides a brief description of typical interface modes. Clock Signals Multiple reference clock frequencies can be used as a reference for the RF circuits, to synthesize clocks for most of the internal digital circuits, and to supply external processors with timing signals. Serial Programming Interface (SPI) The serial programming interface (SPI) is used to access the internal registers of the SiW1721B Radio Modem. The SPI is a synchronous serial interface that can be clocked to a nominal speed of 8MHz. Power The SiW1721B Radio Modem includes both analog and digital voltage regulators. Input options are based on factors such as voltage source, where internal regulators are used, and I/O voltage. 2 of 12 60 0076 R00F SiW1721B Radio Modem IC DS SiW1721B Pin Description The SiW1721B Radio Modem’s radio and modem interface (SPI), a single clock input, and supply voltage are required for proper operation. Name Pad Type Description Radio Interface Signal Description RF_IO Analog IDAC Analog TX_RX_SWITCH CMOS output TX_BIAS Analog Combined 50 Ω input and output pin in normal mode. Rx only in power class 1 mode. Power control to external power amplifier. This output provides a variable current source that can be used to control the external power amp. Leave unconnected if not used. Output signal to indicate the current state of the radio. The polarity is programmable with the default set as: Low=Transmit mode. High=Non-transmit mode. Bias for the output driver in normal mode, transmit output in power class 1 mode. Modem Interface Description RX_TX_DATA CMOS bi-directional CD_TXEN CMOS bi-directional ENABLE_RM CMOS input HOP_STROBE CMOS input RESET_N CMOS input Received sliced-mode data from radio; or transmit data to radio. Dual function carrier detect and transmit enable. This bi-directional signal can be enabled through internal registers. During transmit, this pin can be used as an INPUT to indicate valid transmit data (TXEN). During receive, this pin can be used as an OUTPUT to indicate carrier detect (CD). Input only, output, or bi-directional. Sleep/wake control signal from baseband controller. Used to command the SiW1721B Radio Modem from idle to sleep mode, and to awaken the SiW1721B Radio Modem from sleep mode. Signal generated by the baseband to indicate the start of TX or RX ramp-up. Reset for digital circuits only. State machines and internal registers reset to their default state. This signal is an asynchronous input with a minimum pulse width requirement of 10 µs. Clock Signals Description XTAL_P/CLK Analog XTAL_N Analog BB_CLK CMOS output System clock crystal positive input or reference clock input. For additional information see the “Crystal Requirements” and “External Reference Requirements” sections. System clock crystal negative input. If a reference clock frequency is used, this pin should be left unconnected. Selectable clock output to external baseband controller. Five frequencies are supported (in MHz): reference frequency, reference frequency/2, 12, 13, 16, 32, 48, and 52. BB_CLK stops oscillating when ENABLE_RM is de-asserted (low). Serial Programming Interface Description SPI_TXD SPI_RXD SPI_CLK SPI_SS CMOS output CMOS input CMOS input CMOS input SPI data output from SiW1721B. SPI data input to SiW1721B. Clock input used for synchronous data transfer on the SPI bus. SPI slave select that enables the SiW1721B Radio Modem as the target. Power Signals Description VBATT_ANA VBATT_DIG VCC_OUT VBB_OUT VCC Power Power Power Power Power VDD_IO Power VBB_RDY CMOS output Supply voltage to internal analog voltage regulator. Supply voltage to internal digital voltage regulator. Regulated output from internal analog regulator. Regulated output from internal digital regulator. Supply voltage to on-chip analog circuits. Supply voltage to on-chip I/O interface. I/O pins: BB_CLK, CD_TXEN, ENABLE_RM, HOP_STROBE, RESET_N, RX_TX_DATA, SPI_CLK, SPI_RXD, SPI_SS, SPI_TXD, TX_RX_SWITCH. This signal is used to indicate that the internal digital regulator is stable (VBB_OUT). Other I/O Description VREFP_CAP VREFN_CAP VTUNE CHG_PUMP Analog Analog Analog Analog Decoupling capacitor for voltage reference for the internal A/D converter. Decoupling capacitor for voltage reference for the internal A/D converter. Pin for reference PLL loop filter. Pin for RF PLL loop filter. Table 1. SiW1721B Radio Modem Pin List 60 0076 R00F SiW1721B Radio Modem IC DS 3 of 12 SiW1721B System Specifications Absolute Maximum Ratings Parameter Min Max Unit Analog circuit supply voltage -0.3 3.63 V I/O supply voltage -0.3 3.63 V VBATT_ANA Analog regulator supply voltage -0.3 3.63 V VBATT_DIG Digital regulator supply voltage -0.3 3.63 V TST Storage temperature -55 +125 °C RFMAX Maximum RF input level – +5 dBm VCC VDD_IO Description Note: Absolute maximum ratings indicate limits beyond which the useful life of the device may be impaired or damage may occur. Recommended Operating Conditions Min Max Unit TOP Parameter Operating temperature (industrial grade) Description -40 +85 °C VBATT_ANA Supply for internal analog voltage regulator 2.3 3.63 V VBATT_DIG Supply for internal digital voltage regulator 2.3 3.63 V VCC Analog supply voltage 1.71 1.89 V VDD_IO Digital interface I/O supply voltage 1.62 3.63 V ESD Rating Symbol Description Rating 1 ESD 2000 V ESD protection - all pins 1 This device is a high performance RF integrated circuit with an ESD rating of 2,000 volts (HBM conditions per Mil-Std-883, Method 3015). Handling and assembly of this device should only be done using appropriate ESD controlled processes. Electrical Characteristics DC Specification (TOP =+25°C, VDD_IO =3.0V) Symbol Description VIL Input low voltage VIH Input high voltage VOL Output low voltage VOH Output high voltage Output high current Output high current (pins 16, 19) Output low current Output low current (pins 16, 19) Input leakage current IOH IOL IILI Min. Typ. Max. Unit GND-0.1 0.7*VDD_IO – 0.3*VDD_IO V – VDD_IO V GND 0.8*VDD_IO – 0.2*VDD_IO V – 500 4 500 4 <1 VDD_IO – – – – 1 V µA mA µA mA µA Typ. Max. Unit – – – – 30 16 24 13 ns ns ns ns – – – – – AC Characteristics (TOP =+25°C, VDD_IO =3.0V, CLOAD =15pF) Symbol Description Min. tr tf 4 of 12 Rise time Rise time (pins 16, 19) Fall time Fall time (pins 16, 19) – – – – 60 0076 R00F SiW1721B Radio Modem IC DS SiW1721B Current Consumption (TOP =+25°C, VBATT_ANA, VBATT_DIG = 3.3 V) Min. Typ. Max. IDD_SLEEP Symbol Current during sleep mode Description – 15 25 Unit µA IDD_IDLE Current during idle, synthesizer not running – 2 – mA IDD_TRANSMIT Current during continuous transmit – 41 45 mA IDD_RECEIVE Current during continuous receive – 41 45 mA Min Typ Max Unit 2402 – 2480 MHz – 55 100 µs Radio Specification Parameter VCO operating range PLL lock time Description Frequency – Receiver Specification1 (VBATT_ANA, VBATT_DIG =3.3V, VCC =int. analog reg. output, and nominal2 Bluetooth test conditions) Parameter Receiver sensitivity Maximum usable signal C/I co-channel (0.1% BER) C/I 1MHz (0.1% BER) C/I 2MHz (0.1% BER) C/I ≥3MHz (0.1% BER) Out-of-band blocking3 Intermodulation Receiver spurious emission Description Min Typ Max Unit Measured based on BER<0.1% – -88 -82 dBm Measured based on BER<0.1% -10 +5 – dBm Co-channel selectivity – 8.0 11.0 dB Adjacent channel selectivity – -4.0 0 dB 2nd adjacent channel selectivity – -38.0 -35.0 dB 3rd adjacent channel selectivity – -43 -40 dB -10 -27 -27 -10 – – – – – – – – dBm dBm dBm dBm -39 -36 – dBm – – – – -57 -47 dBm dBm 30 MHz to 2000 MHz 2000 MHz to 2399 MHz 2498 MHz to 3000 MHz 3000 MHz to 12.75 GHz Max interferer level to maintain 0.1% BER, interference signals at 3 MHz and 6 MHz offset. 30MHz to 1GHz 1 GHz to 12.75 GHz 1 Measured into the chip with a 50 Ω source and no band pass filter. 2 Nominal and extreme Bluetooth test conditions as defined by the Bluetooth Test Specification. 3 Out-of-band blocking guaranteed by design. 60 0076 R00F SiW1721B Radio Modem IC DS 5 of 12 SiW1721B Transmitter Specification1 (VBATT_ANA, VBATT_DIG = 3.3 V, VCC = int. analog reg. output, and nominal Bluetooth test conditions) Parameter Output RF transmit power Description At maximum power output level Min Typ Max Units -2 +2 +6 dBm kHz Modulation characteristics2 Δf1avg 140 155 175 Δf2max (For at least 99.9% of all Δf2max) 115 – – kHz Δf1avg/Δf2avg 0.8 – – kHz Initial carrier frequency accuracy – -75.0 – +75.0 kHz Carrier frequency drift One slot packet Two slot packet Five slot packet Max drift rate -25.0 -40.0 -40.0 – – – – – +25.0 +40.0 +40.0 400 kHz kHz kHz Hz/μs Bluetooth specification – 900 1000 kHz 2 MHz offset >3 MHz offset 30 MHz to 1 GHz, operating mode – – – -74 -74 -70 -55.0 -55.0 -55.0 dBm dBm dBm 1 GHz to 12.75 GHz, operating mode3 1.8 GHz to 1.9 GHz 5.15 GHz to 5.3 GHz – -70 -50.0 dBm – – – – -62.0 -47.0 dBm dBm Min Typ Max Unit Measured based on BER<0.1% – -88 -78 dBm At maximum power output level -4 +2 +6 dBm kHz 20 dB occupied bandwidth In-band spurious emission Out-of-band spurious emission 1Measured 2The 3 into the chip with a 50 Ω source and no band pass filter. modulation characteristic is measured as per test TRM/CA/07/C defined in the Bluetooth Test Specification. Except transmit harmonics. Industrial Temperature Performance1 (VBATT_ANA, VBATT_DIG =3.3V and extreme Bluetooth test conditions) Parameter Receiver sensitivity Output RF transmit power Description Modulation characteristics2 Δf1avg 140 155 175 Δf2max (For at least 99.9% of all Δf2max) 115 – – kHz Δf1avg/Δf2avg 0.8 – – kHz Initial carrier frequency accuracy – -75.0 – +75.0 kHz Carrier frequency drift One slot packet Two slot packet Five slot packet Max drift rate -25.0 -40.0 -40.0 – – – – – +25.0 +40.0 +40.0 +400 kHz kHz kHz Hz/µs Bluetooth specification – 900 1000 kHz 2MHz offset >3MHz offset 30MHz to 1GHz, operating mode – – – -74 -74 -70 -40.0 -55.0 -55.0 dBm dBm dBm 1GHz to 12.75GHz, operating mode3 1.8GHz to 1.9GHz 5.15GHz to 5.3GHz – -70 -40.0 dBm – – – – -62.0 -47.0 dBm dBm 20 dB occupied bandwidth In-band spurious emission Out-of-band spurious emission 1 Measured into the chip with a 50 Ω source and no band pass filter. 2 The modulation characteristic is measured as per test TRM/CA/07/C defined in the Bluetooth Test Specification. 3 Except transmit harmonics. 6 of 12 60 0076 R00F SiW1721B Radio Modem IC DS SiW1721B External Reference Requirements It is possible to provide a number of reference frequencies that are typical on most cellular phones directly into pin 26 (XTAL_P/CLK) of the SiW1721BFIG. The following reference frequencies (in MHz) can be used: 3.84, 9.6, 12, 12.8, 13, 14.4, 15.36, 16, 16.8, 19.2, 19.68, 19.8, 26, 32, 38.4, and 48. For other frequencies, please contact applications support. Parameter Phase noise Drive level Description 100 kHz offset 1 kHz offset 10 kHz offset AC coupled amplitude DC coupled low peak voltage DC coupled high peak voltage 60 0076 R00F SiW1721B Radio Modem IC DS Min Max Unit – – – 0.5 0 VCC - 0.3 -100 -120 -140 VCC dBc/Hz dBc/Hz dBc/Hz VP-P 0.3 VCC V V 7 of 12 SiW1721B Pin Out (Top View) VCC RF_IO TX_BIAS VCC VTUNE VCC XTAL_P/CLK XTAL_N SiW1721BFIG (32-pin QFN) 32 31 30 29 28 27 26 25 IDAC 1 24 NC VREFP_CAP 2 23 HOP_STROBE VREFN_CAP 3 22 SPI_SS VCC_OUT 4 21 CD_TXEN SiW1721B VBATT_ANA 5 20 VBB_READY VCC 6 19 RX_TX_DATA VCC 7 18 VBATT_DIG CHG_PUMP 8 17 VBB_OUT 16 BB_CLK 15 VDD_IO 14 SPI_TXD 13 SPI_CLK 12 SPI_RXD 11 RESET_N ENABLE_RM 10 TX_RX_SWITCH 9 GROUND PAD ON BOTTOM Note: NC indicates "no connect" or unused pins. Pin Assignments Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Note: 8 of 12 Pin Name IDAC VREFP_CAP VREFN_CAP VCC_OUT VBATT_ANA VCC VCC CHG_PUMP ENABLE_RM TX_RX_SWITCH RESET_N SPI_RXD SPI_CLK SPI_TXD VDD_IO BB_CLK Pin 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Pin Name VBB_OUT VBATT_DIG RX_TX_DATA VBB_READY CD_TXEN SPI_SS HOP_STROBE NC XTAL_N XTAL_P/CLK VCC VTUNE VCC TX_BIAS RF_IO VCC NC indicates no connect. 60 0076 R00F SiW1721B Radio Modem IC DS SiW1721B Radio Modem Application Circuit for Plastic QFN Package (SiW1721BFIG) C1 Place L1 close to pin 30 of the SiW1721B. Place C1 as close as possible to L1 and ensure the ground of C1 is as close as possible to the paddle of the SiW1721B. ANTENNA 8.2pF L1 2.7nH 3 Y1 OSC, CRYSTAL 32MHz 1 FL1 4 OUT IN C2 18pF 2 C3 18pF C6 0.1uF 2 C7 0.1uF 3 4 VDD_A 5 6 25 XTAL_N 26 27 VCC 28 VTUNE 29 VCC 30 IDAC XTAL_P/CLK 1 L2 2.2nH TX_BIAS U1 31 C5 2.7pF RF_IO C4 1uF VCC C4 and C9 must have 1 ohm < ESR < 10 ohms. 32 LFB312G45SG2A509 NC VREFP_CAP HOP_STROBE VREFN_CAP SPI_SS SiW1721B 5 mm x 5 mm VCC_OUT VBATT_ANA Keep the traces from C2 and C3 to pins 25 and 26 of the SiW1721B short. CD_TXEN VBB_READY VCC RX_TX_DATA VCC VBATT_DIG 24 23 HOP_STROBE 22 SPI_SS 21 CD_TXEN 20 VBB_READY 19 RX_BB/TX_BB BB_CLK 18 17 C9 1uF C4 and C9 must have 1 ohm < ESR < 10 ohms. 16 SPI_TXD SPI_CLK VDD_IO 15 14 13 SPI_RXD RESET_N VBB_OUT 12 11 C10 22pF CHG_PUMP 10 8 ENABLE_ RM C8 1pF 9 The ground for C10 needs to be as close as possible to the paddle of the SiW1721B. Keep the traces from R2 and C10 to pin 8 of the SiW1721B short. TX_RX_SWITCH VDD_D 7 CLK_REF C11 180pF R2 47K SPI_MIS0 SPI_CLK SPI_MOSI RESET_N ENABLE_RM 60 0076 R00F SiW1721B Radio Modem IC DS 9 of 12 SiW1721B Packaging and Product Marking Package Drawing 32-Pin QFN Drawing and Dimensions NOTES: 1. SHADED AREA INDICATES PIN 1 LOCATION. 2. ALL UNITS ARE IN MILLIMETERS. 3. TOLERANCES: .XX = ± AS SHOW N .XXX = ± AS SHOW N 2 PLCS .10 C A -A- .05 C .90 .85 .70 .65 5.00 SQ. 2.50 TYP .10 .60 .24 TYP .05 .00 3 .10 C B 2 PLCS PIN 1 ID R.20 12° MAX 3.65 SQ. 3.35 .10 C B 2 PLCS .50 .30 -B-C2.37 TYP C A B .30 2 .18 .50 SEATING PLANE 4.75 SQ. .10 C A 2 PLCS Product Marking 32-Pin QFN Drawing 5 x 5 mm, 32-Pin QFN 1721BFIG YYWW Trace Code 10 of 12 60 0076 R00F SiW1721B Radio Modem IC DS SiW1721B Carriers Tape and Reel SiW1721BFIG, 5 X 5 mm, 32-Pin QFN, Tape and Reel Details Carrier tape basic dimensions are based on EIA 481. The pocket is designed to hold the part for shipping and loading onto SMT manufacturing equipment, while protecting the body and the solder terminals from damaging stresses. The individual pocket design can vary from vendor to vendor, but width and pitch will be consistent. Carrier tape is wound or placed onto a shipping reel either 330 mm (13 inches) in diameter or 178 mm (7 inches) in diameter. The center hub design is large enough to ensure the radius formed by the carrier tape around it does not put unnecessary stress on the parts. Prior to shipping, moisture sensitive parts (MSL level 2a-5a) are baked and placed into the pockets of the carrier tape. A cover tape is sealed over the top of the entire length of the carrier tape. The reel is sealed in a moisture barrier ESD bag, which is placed in a cardboard shipping box. It is important to note that unused moisture sensitive parts need to be resealed in the moisture barrier bag. If the reels exceed the exposure limit and need to be baked, most carrier tape and shipping reels are not rated as bakeable at 125°C. If baking is required, devices may be baked according to section 4, table 4-1, column 8, of the Joint Industry Standard IPC/JEDEC J-STD-033A. The following tables provide useful information for carrier tape and reels used for shipping the devices described in this document. RFMD Part Number Reel Diameter Inch (mm) Hub Diameter Inch (mm) Width (mm) Pocket Pitch (mm) Feed Units 13 (330) 7 (178) 4 (102) 2.4 (61) 12 12 8 8 Single Single 2500/reel 100/reel SiW1721BFIG-TR13 SiW1721BFIGSR Peel Test 10–50 grams Peel Angle Cover Tape Leader Trailer Peel Speed 165-180º RS Standard (anti-static) 500 mm (minimum 400 mm) 250 mm (minimum 160 mm) 300 mm/minute Notes: 1. All dimensions are in millimeters (mm). 2. Unless otherwise specified, all dimension tolerances per EIA-481. Ao = 5.30 ±.10 Bo = 5.30 ±.10 F = 5.50 ±.05 Ko = 1.83 ±.10 P = 8.00 ±.10 W = 12.00 +.30/-.10 4.00 ±.10 2.00 ±.05 Ø1.50±.10 0.330±.020 1.75 ±.10 15-inch Trailer Sprocket holes toward rear of reel Top View 15-inch Leader Pin 1 Location F Part Number YYWW Trace Code Part Number YYWW Trace Code P Part Number YYWW Trace Code Part Number YYWW Trace Code Ao Part Number YYWW Trace Code W Bo Ko Direction of Feed 60 0076 R00F SiW1721B Radio Modem IC DS 11 of 12 SiW1721B Ordering Information Part Number Operational Temperature Range1 Package Ordering Quantity Industrial Industrial Industrial Industrial 32-pin QFN 32-pin QFN 32-pin QFN 32-pin QFN 2500/reel 100/reel 25/sample bag 5/sample bag SiW1721BFIG-T13 SiW1721BFIGSR SiW1721BFIG SiW1721BFIGSB 1 Industrial temperature range: -40°C to +85°C. The information in this publication is believed to be accurate and reliable. However, no responsibility is assumed by RF Micro Devices for its use, nor for any infringement of patents, or other rights of third parties, resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RF Micro Devices, Inc. RF Micro Devices reserves the right to change component circuitry, recommended application circuitry and specifications at any time without prior notice. RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, UltimateBlue™, and the SiW product name prefix are trademarks of RFMD, LLC. BLUETOOTH is a trademark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RF Micro Devices, Inc. All other trade names, trademarks and registered trademarks are the property of their respective owners. 12 of 12 60 0076 R00F SiW1721B Radio Modem IC DS