PJ31002 Tone Ringer For Telephone Set T he PJ31002 is a bipolar integrated circuit designed for telephone bell replacement. DIP -8 SOP -8 FEATURES • Oscillation frequency is variable • Few external components • Sustaining power is low • Package is compact ( DIP-8) • Current consumption is small P in: 1. Vcc 2. Rsl 3. Lfi 4. Lfo ORDERING INFORMATION Device Operating Temperature PJ31002CD PJ31002CS Package 5. Gnd 6. Hfo 7. Hfi 8. Out DIP-8 -20℃～+85℃ SOP-8 ELECTRICAL CHARACTERISTICS ( Unless otherwise specified, T a=25 ℃, Vcc=24V) Parameter Operating Voltage Supply Initiation Voltage Sustaining Voltage Supply Initiation Current Sustaining Current Symbol Min. Typ. Max. Unit Vopr -- -- 38 V Vsi 15 17 19.5 V (NOTE 1) FIG.4 Vsus 10.5 12.0 13.0 V (NOTE 2) FIG.4 Isi 1.4 3.3 4.2 mA FIG.4 lsus 0.35 0.9 1.5 mA Vcc=Vsi, No LOAD Vcc=Vsus, No LOAD fL 9 10 11 Hz FIG.5 fH1 461 512 563 Hz FIG.5 FIG.5 Oscillator Frequence (NOTE3) Oscillator Frequence (NOTE3) Oscillator Frequence (NOTE3) Output Voltage *Hi* fH2 576 640 703 Hz Voh 19.7 22.0 23.5 V Output Voltage *Lo* Vol 0.5 0.9 1.4 V Ringing Start Voltage Vtr -- -- 36.0 V Conditions Test Circuit FIG.4 FIG.4 loh=10mA 7 Pin=GND Iol=10mA 7 Pin=5.5V FIG.4 (NOTE 4) FIG.3 FIG.4 ABSOLUTE MAXIMUM RATING (T a=25 ℃ ) Parame te r Supply Voltage Power Dissipation Operating T emperature Range Storage T emperature Range Symbol Vcc Pd T opr T stg 1-5 Rating 38 500 -20 ~ +85 -55 ~ +125 Unit V mW ℃ ℃ 2002/01.rev.A PJ31002 Tone Ringer For Telephone Set ( NOT E 1 ) Supply initiation voltage is the value of DC supply voltage required to start the tone ringer oscillation. ( NOT E 2 ) Sustaining voltage is the value of DC supply voltage required to maintain oscillation. ( NOT E 3 ) Oscillator frequency is determined by the following equations : fL = 1 / ( 1.234 * R1 * C1 ) Hz fH1 = 1 / ( 1.515 * R2 * C2 ) Hz fH2 = 1.24 * fH1 Hz ( NOT E 4 ) Ringing start voltage is the value of AC supply voltage required to start the tone ringer ringing in FIG.3 ( NOT E 5 ) T his product is not designed for protection against radioactive rays. ( NOT E 6 ) All data and specifications are subject to change without notice. Figure 2. Block Diagram 2-5 2002/01.rev.A PJ31002 Tone Ringer For Telephone Set HO W TO USE THE RSL PIN Vc c In the IC, the supply initiation current (lsi) can be 1 changed using the RSL Pin . As show is the diagram, the 2 RSL (Pin 2) is grounded through resistor Rs. By changing the Rs value, supply initiation current can be changed. Supply voltage (Vcc) vs. supply current Rs (lcc) 5 characteristics resulting from changes in the value of Rs are shown in the following diagram. G ND Ic c (m A) Rs= 6.8K Rs= 10K 4 Rs= 18K 3 2 1 10 20 Vc c (V) Figure 3.Ringing Start Voltage Te st Circuit 8.2K 1N4004* 4 27V Tone Ringer 10uF/35 + 4.7uF/50 1 8 2 7 3 6 4 5 10K 1uF/250 + 100 680K 103pF AC f=20H 104pF 3-5 2002/01.rev.A PJ31002 Tone Ringer For Telephone Set FIG. 4 Test Circuit (1) Isi Isus Tone Ringer IC A Vsi Vsus 1 8 2 7 3 6 4 5 SW1 SW2 Rs V 2 10mA R2 5 5V V R1 Vcc Voh Vol C2 C1 • 3 2 1 1 To Oscilloscope SWITCH POSITION IS THE FOLLOWING TABLE : PARAMETER SW1 SW2 1 1 2 2 1 1 2 3 Vsi , Isi Vsus , Isus Voh Vol R1 R2 C1 C2 = 165 K (+/-) = 191 K (+/-) = 0.47 µF (+/-) = 0.0068 µF (+/-) 1% 1% 5% 5% FIG. 4 Te st Circuit (2) Isi.Isus Tone Ringer IC A Vsi. Vsus 3 2 1 Rs SW 1 V Vcc 1 8 2 7 3 6 4 5 To Oscilloscope R2 f1.fH1. fH2 R1 5.5V C2 2 C1 1 SW2 • SWITCH POSITION IS THE FOLLOWING TABLE : PARAMETER SW1 SW2 FL fH1 fH2 1 1 2 1 1 2 R1 R2 C1 C2 4-5 = 165 K (+/-) 1% = 191 K (+/-) 1% = 0.47 µF (+/-) 5% = 0.0068 µF (+/-) 5% 2002/01.rev.A PJ31002 Tone Ringer For Telephone Set 5-5 DIM A B C D G J K L M MILLIMETERS MIN MAX 9.07 9.32 6.22 6.48 3.18 4.43 0.35 0.55 2.54BSC 0.29 0.31 3.25 3.35 7.75 8.00 10° INCHES MIN MAX 0.357 0.367 0.245 0.255 0.125 0.135 0.019 0.020 0.10BSC 0.011 0.012 0.128 0.132 0.305 0.315 10° DIM A B C D F G K M P R MILLIMETERS MIN MAX 4.80 5.00 3.80 4.00 1.35 1.75 0.35 0.49 0.40 1.25 1.27BSC 0.10 0.25 0° 7° 5.80 6.20 0.25 0.50 INCHES MIN MAX 0.189 0.196 0.150 0.157 0.054 0.068 0.014 0.019 0.016 0.049 0.05BSC 0.004 0.009 0° 7° 0.229 0.244 0.010 0.019 2002/01.rev.A