View PT2380_1909163.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

ptc princeton technology corp. tel : 886-2- 2 9162151 fax : 886-2- 2 9174598 4 mode preset equalizer ic preliminar y preliminary pt 2380 revised jan. 1996 page 1 preliminary 2 description pt 2380 is a pre-set equalizer ic utilizing cmos technology specially designed for audio equipment. it features four sound selections, namely: classical, pops, rock and normal/flat which may be selected by the 2 control pins (sw1 and sw2). pt 2380 has 2 built-in channels - each containing an internal operation amplifier and selectable resistors. thus, least external components are used. by connecting only 3 capacitors to each channel, the high performance pre-set equalizing function of this ic is achieved. pin assignments and application circuit are optimized for easy pcb layout and cost saving for audio applications. pt 2380 is housed in a 16-pin dip or so package and is suitable for stereo sound applications. features r cmos technology r least external components r available in 16 pins, dip or so package r 4 sound effect selections available: classical, pops, rock, and normal/flat r high operating voltage range: vcc = 5 ~ 15 v r two channels in the same chip r can be controlled by micro-processor output pin applications r mini compo r car stereo r radio cassette recorders r multi-media speaker r mpeg card r other audio equipments
ptc princeton technology corp. tel : 886-2- 2 9162151 fax : 886-2- 2 9174598 4-mode preset equalizer ic preliminar y preliminary pt 2380 page 2 block diagram where : n = normal/flat mode c = classic mode p = pops mode r = rock mode figure 1 : PT2380 block diagram
ptc princeton technology corp. tel : 886-2- 2 9162151 fax : 886-2- 2 9174598 4-mode preset equalizer ic preliminar y preliminary pt 2380 page 3 pin configuration figure 2 : PT2380 pin configuration pin description pin name i/o description pin no. in1 i signal input pin 1 1 out1 o signal output pin 1 2 cap1_1 - this pin is connected to pin 5 by an external capacitor 3 cap1_2 - this pin is connected to pin 5 by an external capacitor. 4 nf1 - feedback node 1 5 cap1_3 - this pin is connected to pin 5 by an external capacitor. 6 vcc - positive power supply 7 gnd - ground 8 sw1 i mode switch 1 9 sw2 i mode switch 2 10 cap2_3 - this pin is connected to pin 12 by an external capacitor. 11 nf2 - feedback node 2 12 cap2_2 - this pin is connected to pin 12 by an external capacitor. 13 cap2_1 - this pin is connected to pin 12 by an external capacitor. 14 out2 o signal output pin 2 15 in2 i signal input pin 2 16
ptc princeton technology corp. tel : 886-2- 2 9162151 fax : 886-2- 2 9174598 4-mode preset equalizer ic preliminar y preliminary pt 2380 page 4 functional description PT2380 is pre-set to 4 modes: normal/flat, rock, classical and pops. these 4 modes may be selected using two switches, namely: sw1 (pin. no.9) and sw2 (pin no.10). please refer to the table below. mode sw1 sw2 normal/flat low low rock low high classic high low pops high high where low: sw1/sw2 1v and high: sw1/sw2 3 3.5v for vcc = 5 ~ 12 v table 1 : sw1 & sw2 mode conditions the output voltage gain vs. the frequency graph for the 4 preset modes is given below: output voltage gain vs. frequency 10 12 14 16 18 20 22 24 10 100 1000 10000 100000 frequency f (hz) output voltage gain gv (db) rock classic normal pops figure 3 : pt 2380 output voltage gain vs. frequency graph
ptc princeton technology corp. tel : 886-2- 2 9162151 fax : 886-2- 2 9174598 4-mode preset equalizer ic preliminar y preliminary pt 2380 page 5 in order to best describe this ic, an application example is hereby given. the application example?s electrical characteristics are enumerated below. conditions: vcc = 12.0 v, vi = 0.1 vrms and f = 1 khz symbol parameter condition data unit icc circuit operation current vcc=12.0 v vi =0.0 v 8.0 ma gbn p normal mode bass f=80hz 14 db gmn r voltage mid f=1khz 14 db gtn e gain treble f=10khz 14 db gbr s rock mode bass f=80hz 20 db gmr e voltage mid f=1khz 14 db gtr t gain treble f=10khz 16 db gbc classic mode bass f=80hz 16 db gmc m voltage mid f=1khz 14 db gtc o gain treble f=10khz 16 db gbp d pops mode bass f=80hz 12 db gmp e voltage mid f=1khz 16 db gtp gain treble f=10khz 14 db vom maximum output voltage f=1khz vcc=5v,vi=0.3vrms vcc=12v,vi=0.8vrms 1.5 4.0 vrms thd total harmonic distortion bw=400hz~30khz a-weighting 0.02 % vno output noise voltage bw=400hz~30khz a-weighting, vi=0.0v 50 m vrms ri input resistor 50 k w table 2 : application example electrical characteristic values
ptc princeton technology corp. tel : 886-2- 2 9162151 fax : 886-2- 2 9174598 4-mode preset equalizer ic preliminar y preliminary pt 2380 page 6 the sound frequency characteristics of the application example is given below. normal mode sound frequency characteristics 10 15 20 25 10 100 1000 10000 100000 frequency (hz) response (db) figure 4 : normal mode sound frequency characteristics diagram classic mode sound frequency characteristics 10 15 20 25 10 100 1000 10000 100000 frequency (hz) response (db) figure 5 : classic mode sound frequency characteristics diagram
ptc princeton technology corp. tel : 886-2- 2 9162151 fax : 886-2- 2 9174598 4-mode preset equalizer ic preliminar y preliminary pt 2380 page 7 pops mode sound frequency characteristics 10 15 20 25 10 100 1000 10000 100000 frequency (hz) response (db) figure 6 : pops mode sound frequency characteristics diagram rock mode sound frequency characteristics 10 15 20 25 10 100 1000 10000 100000 frequency (hz) response (db) figure 7 : rock mode sound frequency characteristics diagram
ptc princeton technology corp. tel : 886-2- 2 9162151 fax : 886-2- 2 9174598 4-mode preset equalizer ic preliminar y preliminary pt 2380 page 8 absolute maximum ratings (unless otherwise specified, ta=25 o c) symbol parameter ratings unit vcc max supply voltage 15 v pd power dissipation (ta 25 o c) 1000 mw ko thermal derating (ta > 25 o c) 10.0 mw/ o c topr operating temperature -20 ~ 75 o c tstg storage temperature -40 ~ 125 o c v i switch input voltage range -0.3 ~ vcc+0.3 v application circuits figure 8 : PT2380 application circuit
ptc princeton technology corp. tel : 886-2- 2 9162151 fax : 886-2- 2 9174598 4-mode preset equalizer ic preliminar y preliminary pt 2380 page 9 figure 9 : PT2380 application circuit with micro-processor connection package dimension dip package
ptc princeton technology corp. tel : 886-2- 2 9162151 fax : 886-2- 2 9174598 4-mode preset equalizer ic preliminar y preliminary pt 2380 page 10 note: 1. the max value of dimension d includes end flash. 2. the dimension e 1 doesn?t include resin fins 3. the dimension s includes end flash. 4. all dimensions are based on british system
ptc princeton technology corp. tel : 886-2- 2 9162151 fax : 886-2- 2 9174598 4-mode preset equalizer ic preliminar y preliminary pt 2380 page 11 note: 1. controlling dimension : inch 2. lead frame material : copper 194 3. after solder plating lead thickness will be 0.013? max. 4. dimension ?d? does not include mold flash, protrusions or gate burrs. 5. dimension ?e? does not include interlead flash or protrusions. 6. tolerance : 0.010? unless otherwise specified. 7. otherwise dimensions follow acceptable spec. valid part number package description PT2380 16 pins, dip PT2380 s 16 pins, so

▲Up To Search▲

Price & Availability of PT2380

	To Download PT2380 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .