tri-mode, dual-band functionality battery-cell operation (2.7v < vcc < 3.6v) pcs bypass lna nf=1.9 db typical three -step cellular lna nf=1.8 db typical 5mm x 5mm land grid array (lga) chipscale package wireless communications products silicon germanium dual - band lna/downconverter rflc CX74004 conexant delivers rf chipsets for 2g and 3g cdma applications the CX74004 is a tri-mode, dual-band lna/downconverter designed in conexant s advanced sige process. the device meets and exceeds cdmaone, cdma2000, and amps requirements for u.s. and korean cellular, japan cellular, u.s. pcs and korean pcs markets. the CX74004 can also be optimized for dual-mode gsm/wideband cdma (wcdma) applications in the gsm and imt-2000 bands. employing silicon germanium (sige) bipolar complementary metal oxide semiconductor (bicmos) process technology, the rfic is designed for low current consumption at a high perform- ance. by utilizing the advanced process, standby times are up to 15 percent longer than with previous generation of devices. the CX74004 is a super heterodyne receiver incorporating all the components required for implementing the receiver front end, except for the rf saw filters. it has two internal low noise ampli- fiers (lnas) one for the cellular band and another for the pcs or imt 2000 band. the CX74004, along with conexant s cx74002 transmit rfic, cx74005 vga + i/q demodulator, a conexant power amplifier module, and conexant s baseband analog processor forms a complete rf subsystem that interfaces with the most common cdma baseband devices. distinguishing features
www.conexant.com further information literature@conexant.com (800) 854-8099 (north america) (949) 483-6996 (international) order # 101067a 00-0881 wireless communications 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 ?santa clara phone: (408) 249 -9696 fax: (408) 249 -7113 u.s. southwest los angeles phone: (805) 376 -0559 fax: (805) 376 - 8180 u.s. southwest newport beach phone: (949) 483-9119 fax: (949) 483-9090 u.s. san diego phone: (858) 713-4730 fax: (858) 713-4008 u.s. north central illinois phone: (630) 773-3454 fax: (630) 773 -3907 u.s. south central/mexico texas phone: (972) 871-1920 fax: (972) 871- 8910 u.s. northeast massachusetts phone: (978) 367-3200 fax: (978) 256 - 6868 u.s. carolinas north carolina phone: (919) 858 -9110 fax: (919) 858 - 8669 u.s. southeast/south america florida 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 eur ope europe central germany phone: +49 89 829 -1320 fax: +49 89 834-2734 europe north england phone: +44 1344 486444 fax: +44 1344 486555 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: (886 -2) 2-720-0282 fax: (886 -2) 2-757- 6760 australia phone: (61-2) 9869 4088 fax: (61-2) 9869 4077 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 -5182495 fax: (86 ) 755 -5183024 china north phone: (86 -10) 8529 - 9777 fax: (86 -10) 8529 - 9778 india phone: (91-11) 692-4789 fax: (91-11) 692 -4712 korea phone: (82-2) 565-2880 fax: (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: (81-3) 5371 1520 fax: (81-3) 5371 1501 features and specifications product features three-step gain lna designed to meet intermodulation distortion specifications for cdma applications three independent mixers, one for the pcs band and two for the cellular band, designed to operate with very low lo power of -10dbm applications cellular and pcs band phones cdmaone, cdma2000 and amps modes in the following bands: u.s. cellular japan cellular u.s. pcs korea pcs gsm/wcdma dual-mode applications conexant and the conexant symbol are trademarks of conexant systems, inc. package dimensions ?32-pin 5mm x 5mm lga package CX74004 rx asic block diagram
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