View STB5610_4246258.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

1/11 preliminary data december, 15 2003 STB5610 gps rf front-end ic tqfp48 order code STB5610 branding STB5610 ? one chip system to interface gps antenna to gps micro controller ? able to support active and passive antenna ? minimum external components ? compatible with gps l1 sps signal and galileo frequencies ? cmos output levels ? 2.7 v .. 3.6 v supply voltage ? embedded low phase noise pll ? active antenna sensor ? smart chip enable function for power consumption optimization ? esd protected description the STB5610, using st microelectronics rf bipolar technology, implements a global positioning system rf front-end. the chip provides down conversion from the 1575.42 mhz gps (l1) signal to 4.092 mhz output signal. the integrated pll with on-chip reference oscillator uses a low cost 16.368 mhz crystal. no tcxo is required. 48 47 46 45 44 43 42 41 40 39 38 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 36 35 34 33 32 31 30 29 28 27 26 25 vcc_xtal vcc_logic lf vcc_vco gnd tnk1 tnk2 gnd gnd if1+ if1- gnd 1 2 3 4 5 6 7 8 9 10 11 48 47 46 45 44 43 42 41 40 39 38 48 47 46 45 44 43 42 41 40 39 38 37 48 47 46 45 44 43 42 41 40 39 38 ce2 g n d _ x t a l xtal_out x t a l _ i n g n d _ x t a l v c c _ i f g n d _ i f if2+ i f 2 - gnd_if fselect c e gnd_rf g n d lna_in+ l n a _ i n - g n d v c c _ l n a l n a _ o u t - lna_out+ v c c _ r f gnd_rf rf- r f + vcc_logic2 gnd clk gnd_driver vcc_driver gnd_loic vcc_logic as1 as2 gc as_out data pin connection .com .com .com .com 4 .com u datasheet
STB5610 2/11 pin configuration pin symbol typ. dc bias description external circuit 1 vcc_xtal power supply 2 vcc_logic power supply 3 lf loop filter 4 vcc_vco power supply 5 gnd ground 6 tnk1 tank input 7 tnk2 tank input 8 gnd ground 9 gnd ground 10 if1+ mixer output 11 if1- mixer output 12 gnd ground 13 gnd_rf ground 14 rf+ rf amp. input 15 rf- rf amp. input 16 gnd_rf ground 17 vcc_ rf power supply 18 lna_out+ lna output 19 lna_out- lna output 20 vcc_lna power supply 21 gnd_lna ground 22 lna_in+ lna input 23 lna_in- lna input 24 gnd_lna ground .com .com .com .com .com 4 .com u datasheet
3/11 STB5610 pin configuration pin symbol typ. dc bias description external circuit 25 gc lna gain control 26 as_out antenna sensor output 27 as2 antenna sensor input 28 as1 vcc antenna supply 29 vcc_logic power supply 30 gnd_logic ground 31 vcc_driver supply voltage 32 gnd_driver ground 33 clk clock 34 data data 35 gnd ground 36 vcc_logic2 supply voltage 37 ce2 chip enable (no data) 38 ce chip enable 39 fselect frequency selector 40 gnd_if ground 41 if2- lim. amp. output 42 if2+ lim. amp. output 43 gnd_if ground 44 vcc_if supply voltage 45 gnd_xtal ground 46 xtal_in crystal input 47 xtal_out crystal output 48 gnd_xtal ground .com .com .com .com .com 4 .com u datasheet
STB5610 4/11 data @ 4 mhz cmos levels clk @ 16mhz cmos levels saw filter 16.368 mhz quartz two gain lna d ck q pll ~ 1.55 ghz 20 mhz passive antenna rf amp. mixer d latch output buffer vco externaltank 1.57 ghz gain select. ce ce2 loop filter lc filter lc filter freq. select 20 mhz 4 mhz 16 mhz asout 1 st lim. amp. 2 nd lim. amp. block diagram (gps l1) lna section the rf input signal is amplified by two gain levels lna. using gain control pin the lna gain is set to 19 db to support passive antenna or 10 db to sup- port active antenna. the lna output signal is fil- tered by 1575.42 mhz saw filter. rf amplifier plus mixer section the 1575.42 mhz input signal, amplified by rf amp., is mixed with the vco signal to generate a differential 20.46mhz if signal if section two lc filters at mixer output and at first limiting output are used to suppress undesirable signals and mixer products. the second stage limiting amplifier is connected to a d-type latch clocked by 16.368mhz crystal oscillator signal. the effect of sampling the 20.46mhz signal at 16.368mhz is to create sub-sampling alias at 4.092mhz. this is fed to the output level converter. output section the output buffers perform level translation from the internal ecl levels to cmos output levels re- ferred to ground. the data signal changes during the clock signal negative edge. power supplies the STB5610, has been designed to support from 2.7 v to 3.6 v supply voltage. vco and pll using external tank the vco is able to provide very low phase noise signal. through the freq. se- lector pin the vco signal is set at 1554.96 mhz and at 1571.328 mhz. the on-chip reference os- cillator uses a low cost 16.368 mhz crystal. antenna sensor circuitry integrated sensor circuitry is able to evaluate the antenna current consumption; the asout pin out- put provides this info externally. using external sensing resistor of 10 ohm if the antenna current consumption is inside the range 10ma40ma (active antennas typical current consumption) the asout output logic level is high, if the antenna cur- rent consumption is outside the above reported range (passive antenna or problem on antenna connection) the asout output logic level is low. chip enable using the ce pin it is possible to switch off all the chip ( neither data nor clock available). using ce2 pin it is possible to disable the analog portion of the chip (no data available) maintaining the digital portion active (clock available) optimiz- ing the chip current consumption. functional description .com .com .com .com .com 4 .com u datasheet
5/11 STB5610 electrical characteristics (vcc = 3+/-10%, tcase= 25 o c) symbol parameter test conditions min. typ. max. unit absolute maximum rating symbol parameter value unit vcc supply voltage 5.9 v tj junction operating temperature -40 to 125 o c thermal data symbol parameter value unit rthj-case thermal resistance junction-case tbd o c/w supply vcc supply voltage 2.7 3.3 3.6 v icc supply current 37 ma as1 vcc antenna supply 2.7 3.3 / 5 5.5 v lna gp power gain pin gc at gnd pin gc at vcc 19 10 db nf noise figure pin gc at gnd pin gc at vcc 3 10 db iip3 input ip3 pin gc at gnd pin gc at vcc -20 -5 dbm vswrin voltage stat. wave ratio z l =50 w 2.1 rf amplifier and mixer chain iip3 input ip3 -19 dbm nf noise figure 5.5 db z in input impedance 50 w z out differential output impedance 1.4 kw frf input signal rf 1.575 mhz g voltage convertion gain 30 db first limiting amplifier g voltage gain 60 db z out differential output impedance 2.4 kw .com .com .com .com .com 4 .com u datasheet
STB5610 6/11 electrical characteristics (vcc = 3+/-10%, tcase= 25 o c) symbol parameter test conditions min. typ. max. unit second limiting amplifier g voltage gain 30 db vco (gps lo frequency 1555mhz) vco phase noise d f = 1khz, ssb (10khz pll closed loop bandwith) -60 dbc/hz output buffer (square wave cmos level) v oh high output voltage vcc-0.4 vcc v v ol low output voltage 0 0+0.4 v gc pin (lna gain control pin) logic level value low max gain high min gain ce pin (total chip enable pin) logic level value low switch-off high switch-on ce2 pin (analog portion enable pin) logic level value low switch-off high switch-on asout pin (antenna sensor pin) * logic level value low** iant<10ma iant.>40ma high** 10maSTB5610 supply voltage fselect (frequencies selector pin) logic level value low gps frequency high galileo frequency output control pins table application requiring higher or lower current threshold should adjust the resistor value appropiately phase locked loop xtal reference crystal 16.368 mhz .com .com .com .com .com 4 .com u datasheet
7/11 STB5610 application board schematic (active antenna) 1 2 3 4 56 6 5 4 3 2 1 title number revision size b date: 22-sep-2003 sheet of file: d:\STB5610\STB5610_new tank\STB5610.ddb drawn by: vccxtal 1 vcclogic 2 lf 3 vccvco 4 gnd 5 t1 6 t2 7 gnd 8 gnd 9 if1+ 10 if1- 11 gnd_logic2 35 data 34 clock 33 gnd_driver 32 vccdriver 31 gnd_logic 30 vcclogic 29 as1 28 as2 27 asout 26 gc 25 gn d _ xt a l 4 8 xt al _o ut 4 7 xt al _ in 4 6 gnd _ xt a l 4 5 vc c i f 4 4 gnd _ i f 4 3 if2 + 4 2 if2- 4 1 gnd _i f 4 0 fse l e c t 3 9 ce 1 3 8 ce 2 3 7 g n d _ r f 1 3 r f + 1 4 r f - 1 5 g n d _ r f 1 6 v c c r f 1 7 l n a o u t 1 8 l n a o u t _ d 1 9 v c c l n a 2 0 g n d _ l n a 2 1 l n a i n + 2 2 l n a i n - 2 3 g n d _ l n a 2 4 gnd 12 vcclogic2 36 u1 STB5610 l2 6.2nh r5 1k ohm c10 2.2nf c13 100nf c12 10nf vccr vccr c16 22pf l3 2.7 h c18 1nf c27 100pf vccr l4 4.7nh c28 1pf c19 22pf 1 2 f2 dfc21r57p002hha j2 input 1 5 f1 nsva352 c26 1nf c25 100pf vccr l6 27nh l5 100nh c22 100pf c23 100nf c20 1nf r6 10 ohm c15 100pf c21 100nf vccr c14 100nf vccr c1 56pf c2 56pf c4 12pf l1 4.7 h c3 100nf vccr fsel1 vcc_5v ce1 ce2 data clock asout gc vccr r3 1k ohm r1 470 ohm y1 (16.368mhz) c11 4.7nf r2 6.2k ohm vccr c5 100nf c6 100nf c7 1f c8 1f vout 1 gnd 2 gnd 3 n.c. 4 vi n 8 gnd 7 gnd 6 inhibit 5 u2 l4931a33 vout 1 gnd 2 gnd 3 n.c. 4 vi n 8 gnd 7 gnd 6 inhibit 5 u3 l4931a33 c9 1 f vccr j1 8+8 pin connector ce2 ce1 fsel1 vccd vcc_5v data clock vccd vcc_5v asout gc jp1 header3 c17 100pf r4 10k r7 10k r8 10k r9 10k vccr vccr vccr vccr 1 ab 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 r10 100 ohm r11 100 ohm l7 6.2nh d1 skyworks d2 skyworks .com .com .com .com .com 4 .com u datasheet
STB5610 8/11 70.4 mm 58.8 mm application board layout (active antenna) .com .com .com .com .com 4 .com u datasheet
9/11 STB5610 bill of materials (1) this part number will be changed in dfcb21g57ldjab-tt1 by murata q.ty reference designator value manufacturer 1 r1 470 ohm neohm (0603) 1 r2 6.2k ohm neohm (0603) 2 r3, r5 1k ohm neohm (0603) 1 r6 10 ohm neohm (0603) 4 r4,r7,r8,r9 10k ohm neohm (0603) 2 r10,r11 100 ohm neohm (0603) 2 c1,c2 56pf murata (series grm18) 1 c4 12pf murata (series grm18) 3 c7, c8, c9 1 m f (electrolytic) kemet (series t491) case a 1 c10 2.2nf murata (series grm18) 1 c11 4.7nf murata (series grm18) 1 c12 10nf murata (series grm18) 4 c16,c19 22pf murata (series grm18) 7 c3,c5, c6,c13,c14,c21,c23 100nf murata (series grm18) 3 c18, c20,c26 1nf murata (series grm18) 5 c15,c17,c22,c25,c27 100pf murata (series grm18) 1 c28 1.8pf murata (series grm18) 1l1 4.7 m h coilcraft (series 1008cs) 1 l2 6.2nh murata (series lqp18m) 1l3 2.7 m h coilcraft (series 1008cs) 1 l4 4.7nh murata (series lqp18m) 1 l5 100nh murata (series lqw18) 1 l6 27nh murata (series lqp18m) 1 l7 6.2nh murata (series lqp18m) 1 u1 STB5610 st 2 u2, u3 l4931abd33 st 1 j1 8+8 pin connector various 1 j2 sma connector (female) johnson 1 f1 nsva352 njr corporation 1f2 dfc21r57p002hha (1) murata 1 d1 smv1405-079 skyworks 1 d2 smv1405-079 skyworks 1y1 dhf32um- 1sj(16.368mhz) rakon .com .com .com .com .com 4 .com u datasheet
STB5610 10/11 mechanical data mm min. typ. max a 1.60 a1 0.05 0.15 a2 1.35 1.40 1.45 d 8.75 9.00 9.25 d1 6.9 7.00 7.1 e 8.75 9.00 9.25 e1 6.9 7.00 7.1 l 0.5 0.60 0.75 e0.5 b 0.17 0.22 0.27 ccc 0.08 ddd 0.08 teta 0 o 7 o dim. note: l is measured at gage plane (at 0.25 above the seating plane) .com .com .com .com .com 4 .com u datasheet
11/11 STB5610 information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibility for the co nsequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specifications mentioned in this publicati on are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics prod ucts are not authorized for use as critical components in life support devices or systems without express written approval of stmicroelectro nics. the st logo is registered trademark of stmicroelectronics a 2003 stmicroelectronics - all rights reserved all other names are the property of their respective owners. stmicroelectronics group of companies australia - brazil - canada - china - finland - france - germany - hong kong - india - israel - italy - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - u.s.a. http://www.st.com .com .com .com .com 4 .com u datasheet

▲Up To Search▲

Price & Availability of STB5610

	To Download STB5610 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .