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Sames SA2532, Manual, Page: 20 / 22

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SA2532

sames

Ordering Information:

Versions

ZRL

DTMF

R2

Access

Package

(ohm)

Level

Period

Pause

SA2532A P

600

-6/-8dBm

280ms

3s

28 pin DIP

SA2532A S

600

-6/-8dBm

280ms

3s

28 pin SOIC

SA2532C P

1000

-6/-8dBm

280ms

6s

28 pin DIP

SA2532C S

1000

-6/-8dBm

280ms

6s

28 pin SOIC

SA2532U P

1000

-9/-11dBm

600ms

3s

28 pin DIP

SA2532U S

1000

-9/-11dBm

600ms

3s

28 pin SOIC

Summary of Contents for SA2532

Page 1: ...e n LD MF switchable dialling n On chip MF filter CEPT CS 203 compat ible n 3 tone melody generator with selectable repetition rates 1 22 GENERAL DESCRIPTION The SA2532 is a CMOS integrated circuit th...

Page 2: ...Voltage Supply This is the supply pin for the circuit 26 VSS Negative Power Supply 8 MO Melody Output Pulse Density Modulated output of the melody generator for tone ringer At high impedance when not...

Page 3: ...Options Available options are for 600 and 1000 When the 1000 option is selected then a capacitor may be added to the circuit at pin CI to add a reactive element and make the output impedance complex O...

Page 4: ...eturn loss and side tone with one common ground A good side tone cancellation is achieved by using the following equation ZBAL R5 ZLINE R1 The side tone cancellation signal is applied to the STB input...

Page 5: ...inhibited Until new entries 32 digits and further entries will be buffered in a First In First Out Memory FIFO Post dialled digits i e digits manually entered after LNR has been invoked are not stored...

Page 6: ...ne Generator creates 12 Tones in compliance with CCITT Recommenda tion Q23 Signal levels are altered by Mask Option High group frequencies have a level 2 6dB higher than those of the Low Group Details...

Page 7: ...signals When a valid ring signal is present for 73ms continuously the melody generator is activated and remains active as long as the ring signal is present Once the melody generator has been started...

Page 8: ...8 22 SA2532 sames TYPICAL APPLICATION Only the components necessary for presenting the complete functions of the SA2532 are included FIGURE 3...

Page 9: ...sames SA2532 9 22 FEATURE PHONE APPLICATION Only the components necessary for presenting the complete functions of the SA2532 are included FIGURE 4...

Page 10: ...ized out of consideration for the human factor in order to meet the user s expectations be easy to learn and relearn not invoke any automatic functions which the user doesn t expect protect the user f...

Page 11: ...sames SA2532 11 22 Privacy Mute...

Page 12: ...12 22 SA2532 sames Temporary MF FIFO Pressing any other key does not change the state EXIT FIFO...

Page 13: ...sames SA2532 13 22 TIMING DIAGRAMS MF Dialling LD Dialling LD Dialling with Access Pause...

Page 14: ...ating Conditions SupplyVoltage SpeechMode 4V VDD 5V Oscillator Frequency Resonator Murata CSA 3 58M G312AM 3 58 MHz OperatingTemperature 25 Cto 70 C This voltage is generated internally DC Characteris...

Page 15: ...drive 20 dB tATTACK Attack Time 30 s 6dB tDECAY Decay Time 20 ms 6dB ZIN Input Impedance M1 M2 20 k AMUTE Mute Attenuation Mute activated 60 dB VNO Noise Output Voltage 72 dBmp VFC Unwanted Frequency...

Page 16: ...Bmp VFC Unwanted Frequency 50 Hz 20 kHz 60 dBm Components ZIN Input Impedance RI 8 k VIN RI Input Voltage Range RI 2 VPEAK ST Sidetone Test Circuit Fig 5 AST Sidetone Cancellation VRI 0 5VRMS 26 dB VI...

Page 17: ...ms tPFP Post Flash Pause 2 9 3 0 3 1 sec tAP Access Pause Period SA2532A U 2 9 3 0 3 1 sec SA2532C 5 8 6 0 6 2 sec Tone Ringer VMO Melody Output Level PDM tMD Melody Delay 10 ms F1 Frequency 1 1020 1...

Page 18: ...e FCI circuit is reset by POR and HS DP pulled high off hook After a reset the FCI circuit is in a standby state A positive edge on FCI will start a 73ms timer and the frequency discrimination is init...

Page 19: ...sames SA2532 19 22 Test Circuit Figure 5...

Page 20: ...hm Level Period Pause SA2532A P 600 6 8dBm 280ms 3s 28 pin DIP SA2532A S 600 6 8dBm 280ms 3s 28 pin SOIC SA2532C P 1000 6 8dBm 280ms 6s 28 pin DIP SA2532C S 1000 6 8dBm 280ms 6s 28 pin SOIC SA2532U P...

Page 21: ...sames SA2532 21 22 NOTES...

Page 22: ...te SAMES does not undertake to inform any recipient of this document of any changes in the information contained herein and SAMES expresslyreservestherighttomakechangesinsuchinformation withoutnotific...

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