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skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 200762c ? skyworks proprietary information ? products and pr oduct information are subject to change without notice ? jul y 22, 2010 1 data sheet SKY74100-21: dual-band receiver for cdma and pcs femtocell applications applications ? dual-band femtocells features ? supply voltage: 2.7 v to 3.0 v ? low power operation: 140 mw with supply voltage @ 2.85 v ? two differential mixer path inputs (800 mhz and 1.9 ghz) and common i/q differential outputs at the baseband ? two direct downconverters for cdma and pcs bands ? fully integrated uhf vco for all operating modes. an automatic integrated tuning loop for all process variations is included ? fully integrated rf pll (except for the loop filter) ? fully integrated baseband low pass filters for both i and q channels ? internal automatic tuning loop to cover all process variations for integrated filters ? integrated dcoc, requiring no external stimulus or components ? lga (40-pin, 6 x 6 x 1 mm) package with downset paddle (msl3, 260 ? c per jedec j-std-020) skyworks offers lead (pb)-free rohs (restriction of hazardous substances) compliant packaging. description the SKY74100-21 receiver is a highly integrated device for dual- band code division multiple access (cdma) femtocells. the SKY74100-21 supports femtocells in the cellular cdma and personal communications system (pcs) modes. the device requires a minimum number of external components to complete a cdma radio subsystem. included within the package are the downconverters, baseband filters with an auto- tuning loop, uhf voltage controlled oscillator (vco), rf phase locked loop (pll), and dc offset correction (dcoc). the SKY74100-21 is designed to operate within a supply voltage range of 2.7 v to 3.0 v. external components needed for operation include matching networks for differential mixer inputs, cdma/pcs surface acoustic wave (saw) filters, three bias resistors for accurate bias control over process variation, and two high tolerance load resistors for in-phase and quadrature (i/q) baseband output. the SKY74100-21 output is a dual-channel, fully differential analog signal at the baseband. both channels maintain a quadrature phase relationship with each other. together with the sky74092 dual-band, dual-mode lna, the SKY74100-21 completes the receiver from the rf input to the i/q baseband outputs. the 40-pin land grid array (lga) device package and pinout are shown in figure 1. figure 2 shows a functional block diagram for the SKY74100-21. free datasheet http://www.datasheet-pdf.com/
data sheet ? SKY74100-21 cdma receiver skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 2 july 22, 2010 ? skyworks proprietary info rmation ? products and pr oduct information are subject to change without notice ? 200762c s1156 v c o_bypa ss v c o_bia s _re s p cs _mix_inC p cs _mix_in+ v cc _mix c ell_mix_in+ c ell_mix_inC v cc _rf_bia s rf_re s _bia s n/ c n/ c 31 30 2 9 28 27 2 6 25 24 23 22 21 n/ c mix_ g ain s tep v cc _bb q_off s et q_out+ q_outC v cc _bb2 filt_tune_mux i_off s et v cc _div v cc _v c o bidire c tional_lo lpfilt_ c trl ld_out v cc _di g v c o_tune v cc _uhf_pll c p_out v cc _ c lk ref_ c lk pll_bia s _re s le_aux data_aux c lk_aux le_rx data_rx c lk_rx i_out+ i_outC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 6 17 18 1 9 20 40 3 9 38 37 3 6 35 34 33 32 figure 1. SKY74100-21 receiver pinout C 40-pin lga (6 x 6 mm) (top view) s342 2 38 37 bidirectional_lo 3 4 pcs_mix_inC pcs_mix_in+ vco_tune 37 lpfilt_ctrl 19 20 q_out+ q_outC rf pll serial peripheral interface 1 serial peripheral interface 2 auto-tuning blocks i-channel baseband baseband bias q-channel baseband rf bias 4 6 7 cell_mix_in+ cell_mix_inC 22 21 i_out + i_outC figure 2. SKY74100-21 receiver block diagram free datasheet http://www.datasheet-pdf.com/
data sheet ? SKY74100-21 cdma receiver skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 200762c ? skyworks proprietary information ? products and pr oduct information are subject to change without notice ? jul y 22, 2010 3 technical description lnas due to noise and isolation considerations, the cdma and pcs lnas are contained on the sky74092 (refer to the device data sheet, document number 103205, for further information). mixers two mixers with separate differential inputs accommodate cdma and pcs modes of operation. serial bus interface the SKY74100-21 has two read/write, three-wire serial bus interfaces (auxiliary and receive). the auxiliary bus is used for writing to and reading from the uhf vco and pll. the receive bus is used for writing to and reading from the receive path. the receive bus is shared with the sky74092 lna. fully integrated vco the vco is designed to operate at twice the frequency of the pcs receive band and four times the frequency of the cdma receive band. the carrier frequency and quadrature are then achieved by dividing the vco signal by either two or four. the analog tuning range is sufficient to cover frequency variations due to supply and temperature changes under normal operating conditions. this ensures that the pll is always locked. continuous time low pass filters the receive filter has two primary tasks: to set the receive bandwidth, and to reject adjacent and alternate channel blockers. these functions are formalized by the requirements placed on the 900 khz and 1.25 mhz blockers for the cellular and pcs bands, respectively, with further attenuation requirements at 1.7 mhz and 2.05 mhz. there are two identical receive filters, one for the i channel and one for the q channel. a 15 db gain step is provided in the filter, programmed either through the three-wire bus or through the mix_gainstep signal (pin 13). dc offset correction (dcoc) dcoc is provided as part of the baseband filter transfer function. a high pass cut-off is provided in the signal path. no external components are required. however, the high pass cut-off frequency can be adjusted from 640 hz to 1.91 khz using the auxiliary serial bus. rf pll the rf pll is fully integrated with the exception of the loop filter components. the pre-scalar has been designed to directly use the vco frequency to maintain resolution without impacting settling time. a power on reset signal is generated on start-up. this is used to reset all flip-flops in the pll and as a reference to enable on-chip tuning sequences. package and handling information since the device package is sensitive to moisture absorption, it is baked and vacuum packed before shipping. instructions on the shipping container label regarding exposure to moisture after the container seal is broken must be followed. otherwise, problems related to moisture absorption may occur when the part is subjected to high temperature during solder assembly. the SKY74100-21 is rated to moisture sensitivity level 3 (msl3) at 260 ? c. it can be used for lead or lead-free soldering. for additional information, refer to the skyworks application note, pcb design & smt assembly/rework guidelines for rflga packages , document number 103147. care must be taken when attaching this product, whether it is done manually or in a production solder reflow environment. production quantities of this product are shipped in a standard tape and reel format. electrical and mechanical specifications signal pin assignments and functional pin descriptions are described in table 1. the absolute maximum ratings of the SKY74100-21 are provided in table 2. the recommended operating conditions are specified in table 3 and electrical specifications are provided in tables 4 through 7. an application schematic diagram for the SKY74100-21 is shown in figure 3. a pcb footprint drawing is provided in figure 4, package dimensions for the 40-pin lga are shown in figure 5, and the tape and reel dimensions are provided in figure 6. free datasheet http://www.datasheet-pdf.com/
data sheet ? SKY74100-21 cdma receiver skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 4 july 22, 2010 ? skyworks proprietary info rmation ? products and pr oduct information are subject to change without notice ? 200762c table 1. SKY74100-21 signal descriptions pin # name description pin # name description 1 vco_bypass external bypass capacitor for vco bias. 21 i_outC negative i channel baseband output. requires a shunt load resistor of 5 k ? shared with pin 22. 2 vco_bias_res external resistor to set vco bias. 22 i_ out+ positive i channel ba seband output. shunt load shared with pin 21. 3 pcs_mix_inC negative rf input for pcs mixer. requires external match. 23 clk_rx clock for receive serial i/o. 4 pcs_mix_in+ positive rf input for pcs mixer. requires external match. 24 data_rx data for receive serial i/o. 5 vcc_mix supply for rf mixer bias. 25 le_rx latch enable for receive serial i/o. 6 cell_mix_in+ positive rf input for cdma mixer. requires external match. 26 clk_aux clock for auxiliary serial i/o. 7 cell_mix_inC negative rf input for cdma mixer. requires external match. 27 data_aux data for auxiliary serial i/o. 8 vcc_rf_bias supply for rf bias block. 28 le _aux latch enable for auxiliary serial i/o. 9 rf_res_bias external resistor to set rf bias for lna and mixers. 29 pll_bias_res external resistor for pll bias.. 10 n/c no connection 30 ref_clk reference clock input (tcxo). 11 n/c no connection 31 vcc_clk supply for tcxo reference buffer. 12 n/c no connection 32 vcc_dig digital supply. 13 mix_gainstep control pin used to switch the mixer and baseband gain. 33 ld_out lock detect output for pll. this is an open drain output. requires a 10 k ? pullup for vcc. 14 vcc_bb supply for baseband block. 34 lpfilt_ctrl provides a bit from internal serial i/o to switch between external loop filter components. this is an open drain output. 15 vcc_bb2 supply for baseband. 35 cp_out charge pump output. connected to external loop filter. 16 filt_tune_mix ground 36 vcc_uhf_pll supply for rf pll. 17 i_offset no connection 37 vco_tune vco tuning voltage. tuning range is 0.5 v to 2.5 v. 18 q_offset no connection 38 bidirectional_lo no connection 19 q_out+ positive q channel baseband output. requires a 5 k ? shunt load resistor shared with pin 20. 39 vcc_vco supply for vco core. 20 q_outC negative q channel baseband output. shunt load shared with pin 19. 40 vcc_div supply for lo dividers. free datasheet http://www.datasheet-pdf.com/
data sheet ? SKY74100-21 cdma receiver skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 200762c ? skyworks proprietary information ? products and pr oduct information are subject to change without notice ? jul y 22, 2010 5 table 2. SKY74100-21 absolute maximum ratings parameter symbol minimum typical maximum units supply voltage vcc C0.3 +3.6 v input voltage range v in C0.3 vcc v lna input power +5 dbm power dissipation 600 mw storage temperature t stg C40 +125 ? c ambient operating temperature t a C30 +85 ? c note: exposure to maximum rating conditions for extended periods may reduce device reliability. there is no damage to device with on ly one parameter set at the limit and all other parameters set at or below their nominal value. caution : although this device is designed to be as robust as possible, electrostatic discharge (esd) can damage this device. this devi ce must be protected at all times from esd. static charges may eas ily produce potentials of several kilovolts on the human body or equipment, which can discharge without detection. industry-standard esd precautions should be used at all times. table 3. SKY74100-21 recommended operating conditions parameter symbol minimum typical maximum units supply voltage vcc 2.7 2.85 3.0 v operating temperature range t a C30 +25 +85 ? c z in of logic control inputs 50 k ? logic level high vcc C 0.5 vcc v logic level low 0 0.5 v table 4. SKY74100-21 electrical specifications (note 1) (1 of 2) (t a = +25 ? c, vcc = 2.85 v unless otherwise noted) parameter symbol test condi tion min typical max units cdma 800 mhz downconverter a nd filter C high gain mode output frequency range 0 0.65 mhz voltage gain 49 db noise figure nf mixer and filters 13.5 db third order input intercept point iip3 3 dbm second order input intercept point iip2 40 dbm p1db @ input high gain C15 dbm rf input impedance (differential) 100 ? rf input return loss (differential) C10 db lo leakage at mixer input C68 dbm total supply current (adjustable) 70 ma cdma 800 mhz downconverter and filter C low gain mode gain step 15 17 db p1db @ input low gain C15 dbm lo leakage @ mixer input C68 dbm free datasheet http://www.datasheet-pdf.com/
data sheet ? SKY74100-21 cdma receiver skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 6 july 22, 2010 ? skyworks proprietary info rmation ? products and pr oduct information are subject to change without notice ? 200762c table 4. SKY74100-21 electrical specifications (note 1) (2 of 2) (t a = +25 ? c, vcc = 2.85 v unless otherwise noted) parameter symbol test condi tion min typical max units pcs 1900 mhz downconverter and filter C high gain mode output frequency range 0 0.65 mhz voltage gain 49 db noise figure nf mixer and filters 10.0 13.5 db third order input intercept point iip3 2 dbm mixer second order input intercept point iip2 40 dbm p1db @ input high gain C15 dbm rf input impedance (differential) 100 ? rf input return loss (differential) C10 db lo leakage at mixer input C72 dbm total supply current (adjustable) 64 ma pcs 1900 mhz downconverter and filter C low gain mode gain step 15 17 db p1db @ input low gain C15 dbm lo leakage @ mixer input C72 dbm note 1: performance is guaranteed only under the conditions listed in this table. table 5. SKY74100-21 uhf vco specifications (note 1) (t a = +25 ? c, vcc = 2.85 v unless otherwise noted) parameter symbol test condi tion min typical max units vco frequency: cdma pcs 3298 3702 3576 3980 mhz mhz phase noise, cdma @ vco frequency integrated at 900 ? 630 khz offset @ carrier frequency integrated at 900 ? 630 khz offset C63 C75 dbc dbc phase noise, pcs @ vco frequency integrated at 1250 ? 630 khz offset @ carrier frequency integrated at 1250 ? 630 khz offset C67 C73 dbc dbc current consumption (pcs/cdma) 19 ma note 1: performance is guaranteed only under the conditions listed in this table. free datasheet http://www.datasheet-pdf.com/
data sheet ? SKY74100-21 cdma receiver skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 200762c ? skyworks proprietary information ? products and pr oduct information are subject to change without notice ? jul y 22, 2010 7 table 6. SKY74100-21 pll specifications (note 1) (t a = +25 ? c, vcc = 2.85 v unless otherwise noted) parameter symbol test condi tion min typical max units reference range 19.2 mhz phase detector frequency mi nimum range 10 1000 khz reference input sensitivity 300 mvp-p charge pump current: rf (sel 1) rf (sel 2) rf (sel 3) rf (sel 4) 0.8 1.5 2.7 3.6 ma ma ma ma charge pump output voltage compliance, minimum range 0.5 vdd C 0.5 v pll phase noise: integrated from 1 khz to 630 khz at carrier cdma, f comp = 120 khz pcs, f comp = 100 khz 2.5 degrees rms (note 2) supply current 6 ma note 1: performance is guaranteed only under the conditions listed in this table. note 2: equivalent to C27 dbc. table 7. SKY74100-21 output interface specifications (note 1) (t a = +25 ? c, vcc = 2.85 v unless otherwise noted) parameter symbol test condi tion min typical max units nominal cdma and pcs output signal level input level = C100 dbm input level = C113 dbm C57 C56 dbv dbv output common mode voltage vcc/2 v dc offset at cdma and pcs output 15 mv blocker rejection @ cdma and pcs output ? blocker frequency from carrier ? ? 900 khz 40 db inband ripple cdma and pcs (peak-to -peak) 10 khz < frequency offset < 615 khz 1.5 db i/q amplitude imbalance 0.5 db i/q phase imbalance 3 degrees note 1: performance is guaranteed only under the conditions listed in this table. free datasheet http://www.datasheet-pdf.com/
data sheet ? SKY74100-21 cdma receiver skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 8 july 22, 2010 ? skyworks proprietary info rmation ? products and pr oduct information are subject to change without notice ? 200762c pcs rf saw vcc pll receive v cc baseband receive vcc rf receive SKY74100-21 c20 1 pf c25 1 pf c23 1 f out+ gnd gnd in outC 4 1 25 3 b7834 c21 1 nf c27 33 pf l7 2.2 nh l8 2.2 nh r16 15 k vco_bypass 1 40 39 38 37 vco_bias_res 2 pcs_mix_inC 3 pcs_mix_in+ 4 vcc_mix 5 cell_mix_in+ cell_mix_inC x x 6 7 vcc_rf_bias 8 rf_res_bias 9 n/c 10 n/c n/c 11 12 mix_gainstep 13 vcc_bb 14 vcc_bb2 15 filt_tune_mux 16 i_offset 17 q_offset 18 q_out+ 19 q_outC 20 x x x i_outC 21 i_out+ 22 clk_rx 23 data_rx 24 le_rx 25 clk_aux 26 data_aux 27 le_aux 28 pll_bias_res 29 ref_clk 30 vcc_clk 31 vco_tune vcc_div vcc_vco bidirectional_lo 36 35 34 33 ld_out 32 vcc_dig vcc_uhf_pll cp_out lpfilt_ctrl s1154 r24 51 r19 39 k r22 5.1 k c18 1 f c19 1 f c17 4.7 f + c15 33 pf c13 220 pf c12 3.9 nf c14 220 pf c30 33 pf pll rf saw vcc rf receive c28 2.2 pf c32 2.2 pf c31 dni out+ gnd gnd in outC 4 1 25 3 b7838 l9 2.2 nh l10 2.2 nh mixer gain vcc baseband receive c41 1000 pf c42 1 f negative quadrature positive quadrature positive in-phase clock negative in-phase r20 5.1 k r23 100 k r6 10 k r7 24 k data latch enable auxiliary clock auxiliary data auxiliary latch enable tcxo vcc receive digital vcc pll receive lock detect r17 24 k figure 3. SKY74100-21 application schematic free datasheet http://www.datasheet-pdf.com/
data sheet ? SKY74100-21 cdma receiver skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 200762c ? skyworks proprietary information ? products and pr oduct information are subject to change without notice ? jul y 22, 2010 9 s 6 71 2.50 2.50 2.50 0.50 pitch 0.50 pitch 0.50 pitch 0.50 pitch 0.50 0.87 0.60 pitch 0.60 pitch 6.04 6.04 6.04 6.04 6.04 2.27 6.04 2.45 2.45 6.04 2.50 0.50 pitch 6.04 stencil aperture 50% of exposed solder mask opening center pad 0.77 0.77 0.77 0.30 0.30 0.30 2.50 2.27 component outline component outline component outline component outline stencil aperture top view (approach 1) stencil aperture top view (approach 2) all measurements are in millimeters metallization top view thermal via array under ground pad areas. ? 0.3 mm on 0.6 mm pitch. additional vias will improve thermal performance. note: thermal vias should be tented and filled with solder mask, 30-35 m cu plating recommended. solder mask opening top view stencil aperture grid area = 50% of exposed solder mask opening center pad with 0.25 C 0.30 mm web figure 4. phone board layout footprint for the SKY74100-21 6 x 6 lga free datasheet http://www.datasheet-pdf.com/
data sheet ? SKY74100-21 cdma receiver skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 10 july 22, 2010 ? skyworks proprietary in formation ? products and product information are subjec t to change without notice ? 200762c s311 all dimensions are in millimeters pin 1 indicator 6.04 0.10 0.500 0.30 0.05 0.38 0.08 1.00 0.10 r1.500 solder mask pin 1 indicator exposed metal 6.04 0.10 top view side view bottom view detail a detail a solder mask exposed metal 0.38 0.05 0.30 0.020 0.40 0.050 package edge 0.040 ref figure 5. SKY74100-21 40-pin lga package dimension drawing s1850 notes: 1. carrier tape: black conductive polycarbonate 2. cover tape material: transparent conductive psa 3. cover tape size: 9.3 mm width 4. all dimensions are in millimeters 5. pin 1 orientation is in top left corner for the following skyworks products: sky73022-21, -31 sky73023-21, -31 for all other 6 x 6 mm mcm/rflga products, pin 1 orientation is in top right corner. a b 2.00 0.10 ? 1.50 0.10 0.25 0.02 (t) 6 .35 0.10 (bo) 1.75 0.10 ? 1.55 0.05 5.50 0.10 8.00 0.10 4.00 0.10 a b b a 1.30 0.10 (ko) 12.00 0.20 6 .35 0.10 (ao) pin #1 indicator ( s ee note s ) figure 6. SKY74100-21 tape and reel dimensions free datasheet http://www.datasheet-pdf.com/
data sheet ? SKY74100-21 cdma receiver skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 200762c ? skyworks proprietary information ? products and pr oduct information are subject to change without notice ? jul y 22, 2010 11 ordering information model name manufacturing part number evaluation board part number SKY74100-21 cdma receiver SKY74100-21 *** tbd *** copyright ? 2007, 2008, 2010 skyworks solutions, inc. all rights reserved. information in this document is provided in connection with skyw orks solutions, inc. (skyworks) products or services. these m aterials, including the information co ntained herein, are provided by skyworks as a service to its customers and may be used for info rmational purposes only by the cu stomer. skyworks assumes no res ponsibility for errors or omissions in these materials or the information contained herein. skyworks may change its documentat ion, products, services, specific ations or product descriptions at any time, without notice. sk yworks makes no commitment to update the materials or information and shall have no responsi bility whatsoever for conflicts, incompatibilities, or other diff iculties arising from any future changes. no license, whether express, implied, by es toppel or otherwise, is granted to any in tellectual property rights by this document . skyworks assumes no liability for any materials, products or information provided hereunder, including the sale, distribution, re production or use of skyworks products, information or mate rials, except as may be provided in skyworks terms and conditions of sale. the materials, products and information are pr ovided as is without warranty of any ki nd, whether express, implied, statutory, or otherwise, including fitness for a particular purpose or use, merchantability, performance, qualit y or non-infringement of any intellectual property right; all su ch warranties are hereby expressly disclaimed. skyworks does not warrant the accura cy or completeness of the information, text, graphics or other items contained within these ma terials. skyworks shall not be liable for any damages, including but not limited to any special, indirect, incidental, statutory, or consequentia l damages, including without limitation, lost revenues or lost profits that may result from the use of the materials or information, wheth er or not the recipient of mat erials has been advised of the possibility of such damage. skyworks products are no t intended for use in medical, lifesaving or life-su staining applications, or other equipment in which the failure of the skyworks products could lead to personal injury, death, physical or environmental damage. skyw orks customers using or selli ng skyworks products for use in such applications do so at their own risk and agree to fully indemnify skyworks for any damages resulting from such improper use or sale. customers are responsible for their products and applications us ing skyworks products , which may deviate from published specifi cations as a result of design de fects, errors, or operation of products outside of published pa rameters or design specifications. customers sh ould include design and operating safeguards to minimize these and other risks. skyworks assumes no liability for applications assistance, customer product de sign, or damage to any equipment resulting from the use of skyw orks products outsid e of stated published specifications or parameters. skyworks, the skyworks symbol, a nd breakthrough simplicity are trademarks or registered tradem arks of skyworks solutions, inc ., in the united states and othe r countries. third-party brands and names are for identification purposes only, and are the proper ty of their respective owners. additional information, includ ing relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by reference. free datasheet http://www.datasheet-pdf.com/

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