View TA2022AFNG_827342.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

TA2022AFNG 2006-04-11 1 toshiba bipolar linear integrated circuit silicon monolithic TA2022AFNG 1.5v am/fm if + mpx TA2022AFNG is the am / fm if + mpx system ic, which is developed for headphone radio in 1.5v use. this is included many functions and this can be used for digital tuning system with if counter. features ? suitable for combination with digital tuning system which is included if counter. ? built ? in am / fm if count output for if counter of digital tuning system. fm: 10.7mhz am: 450khz ? adjustable for stop pulse sensitivity (in fm mode) ? for adopting ceramic discriminator, it is not necessary to adjust the fm quad detector circuit. ? built ? in am if output for am stereo ? mpx input for main signal is independent of that for pilot signal. (mpx input for pilot signal is shared with am input) ? mpx output is high ? impedance in power off mode. ? built ? in power switch ? low supply current (v cc = 1.2v, ta = 25c) fm mode: i cc2 = 5.5ma (typ.) am mode: i cc3 = 3.7ma (typ.) ? operating supply voltage range (ta = 25c) v cc (opr) = 0.95~2.2v ? stereo operating supply voltage range (ta = 25c) v cc (opr) = 1.0~2.2v weight: 0.14 g (typ.)
TA2022AFNG 2006-04-11 2
TA2022AFNG 2006-04-11 3 terminal explanation terminal voltage: typical terminal voltage at no signal with the test circuit 1 (v cc = 1.2v, ta = 25c) terminal terminal voltage (v) no. name function internal circuit am fm 1 v ref referential voltage bypass terminal for am rf and fm if amplifier 0.9 0.9 2 osc am osc 1.2 1.2 4 mix output of am mix 1.2 1.2 3 fm if in imput of fm if signal ? input impedance 330 ? (typ.) 0.9 0.9 5 v cc D D 1.2 1.2 6 am if in imput of am if signal ? input impedance 3k ? (typ.) 1.2 1.2 7 quad fm quad detector 1.2 1.2
TA2022AFNG 2006-04-11 4 terminal terminal voltage (v) no. name function internal circuit am fm 8 agc ? am mode agc time constant is determined by external capacitor. ? fm mode the sudden change of stop pulse sensitivity is held in by external capacitor. D D 9 gnd D D 0 0 10 if out output of if count signal in case of if request mode, if count signal for if counter is taken from this terminal. fm: v if (fm) = 80mv p ? p (typ.) am: v if (am) = 100mv p ? p (typ.) D D 11 if req if request switch v cc : receive mode open: if request mode fm stop pulse sensitivity can be changed by connecting r sen in if request mode. r sen should be smaller than 100k ? D D 12 sp out output of stop pulse vco frequency can be monitored, in case that this terminal is connected with gnd through a resistor (r vco P 100k ? ). on : vco monitor open : sp out D D 13 st ind stereo indicator terminal ? this terminal shared with output of modulated am if signal. ? am if output: 6mv rms (r if = 3k ? , typ.) ? r if should be smaller than 3k ? . in case that r if > 3k ? , internal biasing circuit doesn't operate normally in am mode. D D
TA2022AFNG 2006-04-11 5 terminal terminal voltage (v) no. name function internal circuit am fm 14 l out 15 r out output of stereo signal these terminals are high ? impedance in power off mode. 0.5 0.5 16 lpf 1 lpf terminar for phase detector D D 17 vco vco the temperature characteristic of free running frequency is +350ppm / c. temperature coefficient: sh D 1.2 18 lpf 2a lpf terminal for synchronous detector D D 19 lpf 2b lpf terminal for synchronous detector and am / fm switch v cc : am mode open: fm mode 1.2 D 21 pilot in input of fm stereo pilot signal and am signal 0.1 0.1
TA2022AFNG 2006-04-11 6 terminal terminal voltage (v) no. name function internal circuit am fm 20 mpx in input of fm stereo main signal D 0.1 22 det out detector output circuit ? output impedance (typ.) am: 10k ? fm: 1k ? 0.6 0.6 23 pw sw power switch v cc : ic on open/gnd: ic off 1.2 1.2 24 am rf in input of am rf signal ? input impedance: 13k ? (typ., at no signal) 0.9 0
TA2022AFNG 2006-04-11 7 application note 1. power switch it is necessary to connect an external pull ? down resistor with the terminal of pw sw (pin (23)), in case that this ic is turned on due to external noise etc. 2. mode switch the terminal of am / fm changeover is pin(19). in controlling the am / fm mode with voltage, it is applied as follows. v cc : am mode open: fm mode in fm mode, care should be taken to eliminate influence due to external noise etc, because this terminal is opened. the leak current flows through this terminal, in the case that the terminal is connected to v cc line independently, even through this ic is off mode (the terminal of pw sw (pin(23)) is off mode). 3. if count output if count signal can be taken from if output terminal (pin(10)), when if request terminal (pin(11)) is connected with gnd through r sen and stop pulse sensitivity is on. switch condition pin(11) pin(19) output frequency output voltage (typ.) output impedance (typ.) fm open open 10.7mhz 80mv p ? p am (r sen 100k ? ) v cc 450khz 100mv p ? p 2 k ? table.1 if count output 4. fm stop pulse sensitivity fm stop pulse sensitivity can be changed by connecting an external resistor r sen between if request terminal (pin(11)) and gnd. the gain of fm if amplifier is controlled by r sen , and fm stop pulse sensitivity is changed. it is advised that r sen is 100k ? or less.
TA2022AFNG 2006-04-11 8 5. mpx in this ic can attenuate only fm stereo main signal level. because mpx input for main signal (pin(20)) is independent of that for pilot signal (pin(21), this terminal is shared with am input). internal circuit of mpx in terminal (pin(20)) is shown in fig.2. fm stereo main signal level can be attenuated by connecting an external resistor r x . because fm stereo main signal level is attenuated by internal resistor (14k ? and10k ? ) and resistor r x . and it is applied to an emitter of transistor q. 6. am tweets it is necessary to connect the capacitor ct (about 330pf) between v cc terminal (pin(6)) and det out (pin(22)), in case that am tweets occurs by pattern layout. (fig.3) this ct can also functions as phase compensation of mpx stage. 7. am agc it is necessary to connect a capacitor c (about 68pf) between v cc terminal (pin(8)) and am if in terminal (pin(6)), in case that agc circuit doesn't operate normally. because second harmonic of local oscillator is applied am if terminal (pin(6)) by pettern layout. in case that capacitor (c = 68pf) is connected, am stop pulse sensitivity is delayed about 1db. output dc voltage of agc terminal (pin(8)) is v 8 = 0.1v (typ., am mode, at no signal). 8. stereo indicator / am if output (for am stereo) ? the terminal of pin(13) is built in stereo indicator function and modulated am if signal output. in am mode, r if (3k ? or less) should be connected between v cc and pin(13) , or pin(13) should connected to v cc directly. (fig.5) in case that r if >3k ? or pin (13) is opened, this ic doesn't operate normally in am mode. because transistor q 2 is saturated. fig.2 internal circuit of mpx in terminal fig.3 countermeasures for am tweets
TA2022AFNG 2006-04-11 9 ? am if output v if (am mod) = 6mv rms (typ. r if = 3k ? ) the applications of this terminal are explained as follow. (a) method to use stereo indicator and am if output external circuit is recommended as shown in fig.6. (b) method to use stereo indicator. external circuit is recommended as shown in fig.7. r if is not needed in case that this ic is not use in am mode. (c) method to use am if output external circuit is recommended as shown in fig.8. (d) in case that functions of this terminal are not used. external circuit is recommended as shown in fig.9. r if is not needed in case that this ic is not used in am mode. absolute maximum ratings (ta = 25c) characteristic symbol rating unit supply voltage v cc 4.5 v stop pulse voltage v sp 4.5 v stop pulse current i sp 10 ma stereo indicator voltage v st 4.5 v stereo indicator current i st 10 ma power dissipation p d (note) 500 mw operating temperature t opr ? 25~75 c storage temperature t stg ? 55~150 c note: derated above ta = 25c in the proportion of 4mw / c.
TA2022AFNG 2006-04-11 10 electrical characteristics unless otherwise specified v cc = 1.2v, ta = 25c, sw1: a, sw4: open, sw5: a, sw6: a / b, sw7: on fm if: f = 10.7mhz, f m = 1khz, ? f = 22.5khz, v in = 80dbv, emf, sw2: on, sw3: b am: f = 1mhz, f m = 1khz, mod = 30%, v in = 60dbv, emf, sw2: open, sw3: a mpx: f m = 1khz, f p = 19khz, sw3:b characteristic symbol test circuit test condition min. typ. max. unit i cc1 pw off, sw1: b D D 5 a i cc2 fm mode, v in = 0 D 5.5 7.5 supply current i cc3 1 am mode, v in = 0 D 3.7 5.5 ma input limiting sensitivity v in (lim) ? 3db limiting 43 48 53 dbv emf recovered output voltage 1 v od1 35 55 70 mv rms signal to noise ratio 1 s / n1 D 60 D db total harmonic distortion 1 thd1 D 0.5 D % am rejection ratio amr mod = 30% D 40 D db stop pulse sensitivity 1 sp1 i 12 = 0.5ma, sw6: a 50 55 60 stop pulse sensitivity 2 sp2 i 12 = 0.5ma, r sen = 39k ? sw6: a, sw7: open D 64 D dbv emf fm if if output voltage v if (fm) 1 ? f = 0, sw7: open D 80 D mv p ? p gain g v v in = 26dbv emf 15 27 D recovered output voltage 2 v od2 30 45 60 mv rms signal to noise ratio2 s / n2 D 38 D db total harmonic distortion 2 thd2 D 1.5 D % stop pulse sensitivitiy sp3 i 12 = 0.5ma, sw6: a 25 30 35 dbv emf if output voltage v if (am) 1 mod = 0, sw7: open D 100 D mv p ? p oscillator voltage v osc 30 55 D mv rms a m oscillator stop voltage v stop 2 D D 0.95 v
TA2022AFNG 2006-04-11 11 characteristic symbol test circuit test condition min. typ. max. unit voltage gain 1 g v (fm) ? 1.5 +0.5 +2.5 voltage gain 2 g v (am) ? 0.5 +1.5 +3.5 channel balance cb v in = 100mv rms (mono) ? 2 D +2 db maximum composite signal input level v in (max) l + r =90%, p = 10% thd = 3% D 220 D mv rms mono thd3 v in = 100mv rms (mono) D 0.2 0.5 stereo thd4 l + r =90mv rms, p = 10mv rms D 0.3 D total harmonic distortion am thd5 v in = 100mv rms D 0.2 D % f m = 100hz D 36 D f m = 1khz 25 35 D separation sep l + r =90mv rms p = 10mv rms f m = 10khz D 34 D db on st (on) D 5.5 8 stereo indicator sensitivity off st (off) pilot signal input i 13 = 0.5ma, sw5: a 2 4 D mv rms stereo indicator hysteresis v h to indicator turn off from turn on D 1.5 D mv rms capture range cr p = 10mv rms, f p = 19khz D 7 D % m p x signal noise ratio 3 s / n3 1 v in = 100mv rms (mono) D 65 D db on current i 23 sw1: c 5 D D a power switch off voltage v 23 sw1: d 0 D 0.3 v am mode on current i 19 sw3: c 50 D D a fm mono mode on voltage v 16 sw4: on D 0.1 D v if request off voltage v 11 2 v cc = 0.95v sw7: on 0.9 D D v
TA2022AFNG 2006-04-11 12
TA2022AFNG 2006-04-11 13 coil data turns coil test frequency l (h) co (pf) qo 1 ? 22 ? 3 1 ? 3 4 ? 6 wire (mm ) reference (coil no.) l am osc 796khz 100 D 85 13 55 D D 0.06uew (s)4187 ? 144 t am ift 450khz D 180 65 D D 184 29 0.05uew (s)4161 ? 242 (s): sumida electric co., ltd.
TA2022AFNG 2006-04-11 14 characteristic curve
TA2022AFNG 2006-04-11 15 mpx
TA2022AFNG 2006-04-11 16
TA2022AFNG 2006-04-11 17 package dimensions weight: 0.14g (typ.)
TA2022AFNG 2006-04-11 18 restrictions on product use 060116eb a ? the information contained herein is subject to change without notice. 021023_d ? toshiba is continually working to improve the quality and reliability of its products. nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. it is the responsibility of the buyer, when utilizi ng toshiba products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such toshiba products could cause loss of human life, bodily injury or damage to property. in developing your designs, please ensure that toshiba products are used within specified operating ranges as set forth in the most recent toshiba products specifications. also, please keep in mind the precautions and conditions set forth in the ?handli ng guide for semiconductor devices,? or ?toshiba semiconductor reliability handbook? etc. 021023_a ? the toshiba products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). these toshiba products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury (?unintended usage?). unintended usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc. unintended usage of toshiba products listed in this document shall be made at the customer?s own risk. 021023_b ? the products described in this document shall not be used or embedded to any downstream products of which manufacture, use and/or sale are prohibited under any applicable laws and regulations. 060106_q ? the information contained herein is presented only as a guide for the applications of our products. no responsibility is assumed by toshiba for any infringements of patents or other rights of the third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of toshiba or others. 021023_c ? the products described in this document are subject to the foreign exchange and foreign trade laws. 021023_e about solderability, following conditions were confirmed ? solderability (1) use of sn-37pb solder bath solder bath temperature = 230c dipping time = 5 seconds the number of times = once use of r-type flux (2) use of sn-3.0ag-0.5cu solder bath solder bath temperature = 245c dipping time = 5 seconds the number of times = once use of r-type flux

▲Up To Search▲

Price & Availability of TA2022AFNG

	To Download TA2022AFNG Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .