PDF CX74037 Data sheet ( Hoja de datos )

Número de pieza	CX74037
Descripción	Transmit RF IC for TDMA or AMPS Applications
Fabricantes	Conexant Systems
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No Preview Available ! www.DataSheet4U.com CX74037 Transmit RF IC for TDMA or AMPS Applications Conexant’s CX74037 Transmit RF Application-Specific Integrated Circuit (ASIC) is a triple-mode, dual-band transmitter intended for use in IS-136 compliant cellular phones. As a dual mode IC, it can be used in Time Division Multiple Access (TDMA) mode or Advanced Mobile Phone System (AMPS) mode. The device is available in a 48-pin 7x7 Land Grid Array (LGA) package with downset paddle. The CX74037 RF IC device includes the following functional components: • In-Phase and Quadrature (I/Q) modulator • Two Intermediate Frequency (IF) Voltage Controlled Oscillator (VCO) inputs • IF Variable Gain Amplifier (VGA) • Two upconverters • Two drivers for external Power Amplifiers (PAs). The CX74037 48-pin, 7x7 LGA package pin configuration is shown in Figure 1. A CX74037 block diagram is shown in Figure 2. Features • Sectional enable lines for independent control of circuits within the chip • 90 dB IF VGA range • Separate IF frequencies can be used for the 800 MHz (AMPS) and 1900 MHz Bands (PCS) • Dual drivers for 800 MHz and 1900 MHz • PA driver is deactivated by using the Driver Enable signal when there is no transmission • Available in a 48-pin, 7x7 LGA package with downset paddle Applications • Cellular and/or PCS-band phones • TDMA and/or AMPS-mode phones • Portable battery powered equipment www.DataSheet4U.com MIX_IN+ MIX_IN- VCC_IF VGA_GC VGA_OUT- VGA_OUT+ VCC_LD_PCS POT_CELL DRV_ENA RF_PCS_OUT VCC_BIAS RF_CELL_OUT BAND 1 37 48 47 46 45 44 43 42 41 40 39 38 2 36 3 35 4 34 5 33 6 32 7 31 8 30 9 29 10 28 11 27 12 26 14 15 16 17 18 19 20 21 22 23 24 13 25 NC IF_VCO_IN1- IF_VCO_IN1+ NC NC NC VCC_DIV MIX_CELL_OUT PULL_ENA VCC_DIFF_DRV MIX_PCS_OUT NC NC Data Sheet www.DataSheet4U.com 101103A-1_080400 Figure 1. CX74037 48-Pin, 7x7 LGA Package Pin Configuration Conexant Proprietary Data Subject to Change Doc. No. 101103A September 27, 2000 1 page www.DataSheet4U.com Transmit RF IC for TDMA or AMPS Applications CX74037 Table 4. CX74037 Electrical Characteristics (1 of 3) VCC = 3.0 V, TA = 25 oC, PLO = –10 dBm, input externally matched Parameter Symbol Test Conditions Min Typical Max Units Input frequency range (2X IF frequency) Input signal level IF VCO Input 100 640 MHz –10 –3 +3 dBm Input voltage level, differential I/Q Modulator (Output Not Measurable) 1.4 Vp-p Common mode input voltage level Input DC offset Input impedance Gain variation over process, temperature, VCC 1.4 1.85 2.1 V 4 mV 100K Ω 0.4 dB I/Q gain mismatch I/Q phase imbalance 0.3 0.4 dB 2 4 degrees Transmit VGA VGA frequency range (–1 dB bandwidth) 50 320 MHz VGA gain (with a 600 Ω differential load): Maximum Minimum VGA gain variation with VCC 3.0 to 3.6 V @ VCTRL 2 V Gain variation with temperature 22 24 26 –64 –62 –60 –3 +3 dB dB dB –1.0 +1.0 dB Gain control input impedance VGA gain slope VGA gain control range 40K Ω www.DataSheet4U.co45m 50 55 dB/V 0.5 2.5 V Gain slope variation over any 6 dB segment Output power level @ 20 dB gain P1dB @ 22 dB gain –3 +3 dB/V –13 dBm –3 dBm NF @ 22 dB gain NF at -52 dB gain Operating temperature range 6 dB 52 53 dB –30 +25 +80 °C Cellular Upconverter LO frequency range 1017 1043 MHz LO input return loss (reference to 50 Ω) Output frequency Output return loss from 824 MHz to 849 MHz (reference to 50 Ω) Conversion gain Gain degradation @ VCC 2.7 V ACPR in 30 kHz at 30 kHz offset @ –5 dBm output; cascaded ACPR in 30 kHz at 60 kHz offset @ –5 dBm output; cascaded –10 dB 824 849 MHz –15 dB 7 8 9 dB 0.1 dB –33 dBc –56 dBc 101103A September 27, 2000 www.DataSheet4U.com Conexant – Proprietary Data Subject to Change 5 5 Page www.DataSheet4U.com www.DataSheet4U.com Further Information [email protected] (800) 854-8099 (North America) (949) 483-6996 (International) Printed in USA World Headquarters Conexant Systems, Inc. 4311 Jamboree Road Newport Beach, CA 92660-3007 Phone: (949) 483-4600 Fax 1: (949) 483-4078 Fax 2: (949) 483-4391 Americas U.S. Northwest/ Pacific Northwest – Santa Clara Phone: (408) 551-0270 Fax: (408) 249-7113 U.S. Southwest – Los Angeles Phone: (949) 483-9119 Fax: (949) 483-9090 U.S. Southwest – Orange County Phone: (949) 483-9119 Fax: (949) 483-9090 U.S. Southwest – San Diego Phone: (858) 713-3374 Fax: (858) 713-4001 www.DataSheeUt4.S.UNo.rcthoCmentral – Illinois Phone: (630) 773-3454 Fax: (630) 773-3907 U.S. South Central – Texas Phone: (972) 733-0723 Fax: (972) 407-0639 U.S. Northeast – Massachusetts Phone: (978) 367-3200 Fax: (978) 256-6868 U.S. Southeast – North Carolina Phone: (919) 858-9110 Fax: (919) 858-8669 U.S. Southeast – Florida/ South America Phone: (727) 799-8406 Fax: (727) 799-8306 U.S. Mid-Atlantic – Pennsylvania Phone: (215) 244-6784 Fax: (215) 244-9292 Canada – Ontario Phone: (613) 271-2358 Fax: (613) 271-2359 Europe Europe Central – Germany Phone: +49 89 829-1320 Fax: +49 89 834-2734 Europe North – England Phone: +44 (0)118 920 9500 Fax: +44 (0)118 920 9595 Europe – Israel/Greece Phone: +972 9 9524000 Fax: +972 9 9573732 Europe South – France Phone: +33 1 41 44 36 51 Fax: +33 1 41 44 36 90 Europe Mediterranean – Italy Phone: +39 02 93179911 Fax: +39 02 93179913 Europe – Sweden Phone: +46 (0) 8 5091 4319 Fax: +46 (0) 8 590 041 10 Europe – Finland Phone: +358 (0) 9 85 666 435 Fax: +358 (0) 9 85 666 220 Asia – Pacific Taiwan Phone: Fax: (886-2) 2-720-0282 (886-2) 2-757-6760 Australia Phone: (613) 9583 2650 Fax: (613) 9583 9453 China – Central Phone: 86-21-6361-2515 Fax: 86-21-6361-2516 China – South Phone: (852) 2 827-0181 Fax: (852) 2 827-6488 China – South (Satellite) Phone: (86) 755-518-2495 China – North Phone: (86-10) 8529-9777 Fax: (86-10) 8529-9778 India Phone: Fax: (91-11) 341 2216 (91-11) 341 2217 Korea Phone: Fax: (82-2) 565-2880 (82-2) 565-1440 Korea (Satellite) Phone: (82-53) 745-2880 Fax: (82-53) 745-1440 Singapore Phone: (65) 737 7355 Fax: (65) 737 9077 Japan Phone: Fax: (81-3) 5371 1520 (81-3) 5371 1501 www.conexant.com 11 Page

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