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tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2310 v1.0 - 1 - june, 2005 volume controller ic pt2310 description the pt2310 is an electronic volume controller ic designed for audio equipment. utilize cmos technology; it has 2 individual channels attenuator built inside and ideal for both mono and stereo applications. the pt2310 provides wide frequency res ponse range, very low total harmonic distortion and low noise. it also has a built-i n loudness compensation function for the sound effect improvement. features ? cmos technology ? low power consumption ? two channel independent volume attenuator ? simplified external components ? wide supply voltage 4.5v 12v, controlled by mcu interface ? attenuation range 0db -78db (2db/step) ? built-in loudness compensation function ? wide frequency response, low total harmonic distortion and low noise ? available in 16 pins dip and 16 pins sop applications ? audio equipments ? tv ? multi-media sound device
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2310 v1.0 - 2 - june, 2005 volume controller ic pt2310 block diagram in-l out-l vss ld1-l ld2-l agnd-l cs ck l-ch latch r-ch latch in-r out-r vdd ld1-r ld2-r agnd-r stb data data decoder, stb generator shift register (13bit) pin configuration v ss out-l in-l v dd data out-r in-r agnd-l agnd-r cs ld1-l ld1-r stb ld2-l ld2-r 1 16 2 15 3 14 413 89 710 6 11 5 12 pt2310 ck
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2310 v1.0 - 3 - june, 2005 volume controller ic pt2310 pin description pin no. pin name i/o description function 1 v ss - supply voltage input (-) - 2 out-l o left channel output 3 in-l i left channel input 4 ld1-l o left channel volume loudness tap (1) 5 ld2-l o left channel volume loudness tap (2) 6 agnd-l - analog ground volume control circuit: in-l out-l ld1-l ld2-l agnd-l ls1 ls2 (loudness on: ls1=on, ls2=off) 7 cs - chip select pin c2 c3 c4 fixed codes are 0, 1, 1 when cs=1, c1=1 when cs=0, c1=0 (see p.5 description) 8 ck i clock input - 9 data i data code input attenuation value is defined by the data code; the data code is consisting of 13bits. 10 stb i strobe after the data & ck codes were sent, a high strobe pulse in stb pin to confirm the data is validity. 11 agnd-r - analog ground 12 ld2-r o right channel volume loudness tap (2) 13 ld1-r o right channel volume loudness tap (1) 14 in-r i right channel input 15 out-r o right channel output volume control circuit: in-r out-r ld1-r ld2-r agnd-r ls1 ls2 (loudness on: ls1=on, ls2=off) 16 v dd - supply voltage input (+) -
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2310 v1.0 - 4 - june, 2005 volume controller ic pt2310 function description attenuation the pt2310 volume attenuator is consists of resistor ladder and analog switch. the tap for loudness function is connected to the step 10 (-20 db). the re lations of step and attenuation is given in table below step db step db ladder resistors diagram 0 0 21 -42 1 -2 22 -44 2 -4 23 -46 3 -6 24 -48 4 -8 25 -50 5 -10 26 -52 6 -12 27 -54 7 -14 28 -56 8 -16 29 -58 9 -18 30 -60 10 -20 31 -62 11 -22 32 -64 12 -24 33 -66 13 -26 34 -68 14 -28 35 -70 15 -30 36 -72 16 -32 37 -74 17 -34 38 -76 18 -36 39 -78 19 -38 40 - 20 -40 out in 28.5k ? ld1 agnd s0 s1 s9 s10 s11 s40 s39 21.97k ? ls1 ls2 s12 ld2 3.7k ? note: 1. loudness on: ls1=on, ls2=off 2. loudness off: ls1=off, ls2=on
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2310 v1.0 - 5 - june, 2005 volume controller ic pt2310 serial bus interface the data, ck and stb pins consist of bus line; the bus line is for communication with the mcu and the pt2310. serial data code the data code is consists by l, r, d1~d4, ld, c1 ~c4 (totally 13 bits), at the end of the code there needs a high strobe pulse to confirm the data code is validity. lr d1 d2 d3 d4 d5 d6 ld c1 c2 c3 c4 ck data stb chip selection (c1~c4) the chip selection code c1 is depending on the states of the cs pin, the cs pin in low state means the c1 bit=0; and the cs pin in high state means the c1 bi t=1. ignore what states of the cs pin the c2, c3 and c4 bit is presets to the state 0, 1, 1. cs c1 c2 c3 c4 ?1? 1 0 1 1 ?0? 0 0 1 1 left and right channel control code in the data code, the ?l? bit is for left channel and t he ?r? is for right channel is selected. if the ?l? bit is 1 means the attenuation value (d1 to d6) is for left channel exclusively; and if ?l? and ?r? all are ?1? means attenuation value is for the both channel. loudness setup code the ?ld? bit in the data code is for the loudne ss function. when the ?ld? bit is 0, the loudness function is turned off (ls1=off, ls2=on) and the ?ld? bit is 1 means the loudness is turned on (ls1=on, ls2=off).
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2310 v1.0 - 6 - june, 2005 volume controller ic pt2310 volume setup code (d1~d6) in the data code, ?d1~d6? is defined to the volume attenuation value. please refer the table is shown on below for the relation of volume setup code of each step. volume value (db) d1 d2 d3 d4 d5 d6 volume value (db) d1 d2 d3 d4 d5 d6 0 0 0 0 0 0 0 40 0 0 1 0 1 0 2 1 0 0 0 0 0 42 1 0 1 0 1 0 4 0 1 0 0 0 0 44 0 1 1 0 1 0 6 1 1 0 0 0 0 46 1 1 1 0 1 0 8 0 0 1 0 0 0 48 0 0 0 1 1 0 10 1 0 1 0 0 0 50 1 0 0 1 1 0 12 0 1 1 0 0 0 52 0 1 0 1 1 0 14 1 1 1 0 0 0 54 1 1 0 1 1 0 16 0 0 0 1 0 0 56 0 0 1 1 1 0 18 1 0 0 1 0 0 58 1 0 1 1 1 0 20 0 1 0 1 0 0 60 0 1 1 1 1 0 22 1 1 0 1 0 0 62 1 1 1 1 1 0 24 0 0 1 1 0 0 64 0 0 0 0 0 1 26 1 0 1 1 0 0 66 1 0 0 0 0 1 28 0 1 1 1 0 0 68 0 1 0 0 0 1 30 1 1 1 1 0 0 70 1 1 0 0 0 1 32 0 0 0 0 1 0 72 0 0 1 0 0 1 34 1 0 0 0 1 0 74 1 0 1 0 0 1 36 0 1 0 0 1 0 76 0 1 1 0 0 1 38 1 1 0 0 1 0 78 1 1 1 0 0 1 0 0 0 1 0 1 serial bus timing a a b b a c data ck stb note: a>1s, b>2s, c>2s
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2310 v1.0 - 7 - june, 2005 volume controller ic pt2310 loudness frequency response -80 +10 -75 -70 -65 -60 -55 -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 +0 +5 d b r b -80 +10 -75 -70 -65 -60 -55 -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 +0 +5 d b r a 20 20k 50 100 200 500 1k 2k 5k 10k hz -0db -10db -20db -30db -40db -78db -50db -60db -70db
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2310 v1.0 - 8 - june, 2005 volume controller ic pt2310 total harmonic distortion vs. input level 0.0001 10 0.0002 0.0005 0.001 0.002 0.005 0.01 0.02 0.05 0.1 0.2 0.5 1 2 5 % 1m 10 2m 5m 10m 20m 50m 100m 200m 500m 1 2 5 v
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2310 v1.0 - 9 - june, 2005 volume controller ic pt2310 absolute maximum ratings (ta=25 ) parameter symbol rating unit maximum supply voltage v dd -0.3 ~ 15 v input voltage v in -0.3 ~ v dd +0.3 v power dissipation p d 300 mw operating temperature topr -40 ~ +85 storage temperature tstg -65 ~ +150 electronical characteristics (unless otherwise specified, ta=25 , v dd =9v) parameter symbol test condition min. typ. max. unit supply voltage v dd 4.5 9.0 12 v operating current i dd no load, f=20hz - 0.3 1.0 ma quiescent current iq in, out, ck, cs, sata, stb connect to vss - 0.1 10 a ck, data, stb, v dd =5v 4 - v dd v input high level voltage v ih cs, v dd =10v 0.7v dd - v dd v ck, data, stb, v dd =5v 0 - 1 v input low level voltage v il cs, v dd =10v 0 - 0.3v dd v input high level current i ih v il =v dd -1 - 1 a input low level current i il v il =0v -1 - 1 a resistance of attenuator r vr 20 28 37 k ? resistance of analog switch r on when 0db, the resistance between in1~out1 and in2~out2 - 250 600 ? two channel attenuation error ? att - 0 2 db channel balance ? r vr vin=1vrms - 0 3 % total harmonic distortion thd 0db - 0.01 - % max. attenuation attmax db - 100 - db crosstalk ct 0db - 100 - db residual noise v n 1.input frequency: 1khz 2. input voltage: 1vrms 3. test equipment input resistance=100k ? 4. test equipment output resistance=600 ? 0db - 2 - vrms maximum bus. operation frequency fop - 10 - 500k hz t ck ck input - 0.5 1 minimum pulse duty t stb stb input - 1 2 s
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2310 v1.0 - 10 - june, 2005 volume controller ic pt2310 application circuit 1 8.2k ? 10 f/25v 10 f/25v 0.1 f 10 f/25v 10 f/25v 8.2k ? 0.1 f 0.1 f 47 f/25v 220k ~470k ?? 220k ~470k ?? 220 f/25v 1 3 2 5 4 8 7 6 10 9 13 12 11 15 14 16 vss out-l in-l ld1-l ld2-l agnd-l cs ck vdd out-r in-r ld1-r ld2-r agnd-r stb data 1/2vdd 1500pf + + + + 1/2vdd 1500pf output input l-ch output input r-c h vdd to m c u + vdd 1/2vdd 3.3k ? 4.5v + 9v + pt2310 note: with loudness function
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2310 v1.0 - 11 - june, 2005 volume controller ic pt2310 application circuit 2 1 3 2 5 4 8 7 6 10 9 13 12 11 15 14 16 vss out-l in -l ld1-l ld2-l agnd-l cs ck vdd out-r in -r ld1-r ld2-r agnd-r stb data 1/2vdd 10 f/25v 10 f/25v + - + - + - + - 1/2vdd 10 f/25v 10 f/25v output inp ut l-ch output in put r-ch vdd to m cu 0.1 f 47 f/25v + - vdd 1/2vdd 3.3k ? 220 f/25v 4.5v + - 9v + - pt2 310 note: without loudness function
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2310 v1.0 - 12 - june, 2005 volume controller ic pt2310 order information order part number package type top code pt2310 16 pins, dip, 300mil pt2310 pt2310-s 16 pins, sop, 300mil pt2310-s pt2310 (l) 16 pins, dip, 300mil pt2310 pt2310-s (l) 16 pins, sop, 300mil pt2310-s note: 1. (l), (c) or (s) = lead free 2. the lead free mark is put in front of the data code.
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2310 v1.0 - 13 - june, 2005 volume controller ic pt2310 package information 16 pins, dip, 300mil
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2310 v1.0 - 14 - june, 2005 volume controller ic pt2310 symbol min. nom. max. a 0.210 a1 0.015 a2 0.115 0.130 0.195 b 0.014 0.018 0.022 b1 0.014 0.018 0.020 b2 0.045 0.060 0.070 b3 0.030 0.039 0.045 c 0.008 0.010 0.014 c1 0.008 0.010 0.011 d 0.780 0.790 0.800 d1 0.005 e 0.300 0.310 0.325 e1 0.240 0.250 0.280 e 0.100 bsc. ea 0.300 bsc. eb 0.430 ec 0.000 0.060 l 0.115 0.130 0.150 notes 1. all dimensions are in inchs. 2. dimensioning and toleranc ing per ansi y14.5m-1982. 3. dimensions ?a?, ?a1? and ?l? are measured with the package seated in jedec seating plane gauge gs-3. 4. ?d?, ?d1? and ?e1? dimensions do not include mold flash or protrusions. mold flash or protrusions shall not exceed 0.010 inch. 5. ?e? and ?ea? measured with the leads c onstrained to be perpendicular to datum -c-. 6. ?eb? and ?ec? are measured at the l ead tips with the loads unconstrained. 7. ?n? is the number of terminal positions. (n=16) 8. pointed or rounded lead tips ar e preferred to ease insertion. 9. ?b2? and ?b3? maximum dimensions are not in clude dambar protrusions. dambar protrusions shall not exceed 0.010 inch (0.25 mm). 10. distance between leads including dambar protrusions to be 0.005 inch minimum. 11. datum plane -h- coincident with t he bottom of lead, where lead exits body. 12. refer to jedec ms-001 variation ab. jedec is the trademark of jedec so lid state technology association.
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2310 v1.0 - 15 - june, 2005 volume controller ic pt2310 16 pins, sop, 300mil symbol min. nom. max. a 2.35 2.65 a1 0.10 0.30 b 0.33 0.51 c 0.23 0.32 d 10.10 10.50 e 7.40 7.60 e 1.27 bsc. h 10.00 10.65 h 0.25 0.75 l 0.40 1.27 0 8
tel: 886-2-66296288 fax: 886-2-29174598 url: http://www.princeton.com.tw pt2310 v1.0 - 16 - june, 2005 volume controller ic pt2310 notes: 1. dimensioning and tolerancing per ansi y14.5-1982. 2. dimension ?d? does not include mold flash, protrusi ons or gate burrs. mold fl ash protrusion or gate burrs shall not exceed 0.15mm (0.006 in) per side. 3. dimension ?e? does not include interlead flash or protrusions. interlead flash or protrusions shall not exceed 0.25 mm (0.010 in) per side. 4. the chamfer on the body is optional . it is not present, a visual index feature must be located within the crosshatched area. 5. ?l? is the length of the terminal for soldering to a substrate. 6. ?n? is the number of terminal positions. (n=16) 7. the lead width ?b? as measured 0.36 mm (0.014 in ) or greater above the seating plane, shall not exceed a maximum value of 0.61 mm (0.24 in). 8. controlling dimension: millimeter. 9. refer to jedec ms-013 variation aa jedec is the trademark of jedec so lid state technology association.

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