u3760mb-n ATMEL Corporation, u3760mb-n Datasheet
u3760mb-n
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u3760mb-n Summary of contents
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... Low-Voltage Standard Telephone Circuit Description TEMIC Semiconductors’ low-voltage telephone circuit, U3760MB-N, performs all the speech and line interface functions required in an electronic telephone set tone ringer, pulse and DTMF dialing with redial. Features Speech Circuit D Adjustable dc characteristic D Symmetrical input of microphone amplifier ...
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... U3760MB-N Block Diagram / Applications 470 2 (20) Preliminary Information Figure 1. Rev. A1, 31-May-99 ...
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... MIC MIC 2 14 MICO RDC 17 27 TIN MUTE 20 25 PRIND RECIN 22 16261 Rev. A1, 31-May-99 Preliminary Information n.c. DP MODE BM HKS n.c. VDD 2 VDD 1 OUT RCK VRING VRIAC AGC THA ST PRIVACY RECO 1 RECO 2 U3760MB-N 3 (20) ...
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... U3760MB-N Pin Description SSO44 Symbol 1 C1 Keyboard input Not connected Key tone signal output generated for all keys in pulse dialing mode (except Flash + Redial) with a frequency of about 1240 Hz and dura- tion about built-in inverter provides oscillation with an inexpensive 3 ...
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... MUTE Pin for testing Rev. A1, 31-May-99 Preliminary Information Function MIC1 MIC2 MIC2 MICO VL RDC AGC RDC TIN , B W for an 600 input MUTE U3760MB-N Configuration Ê 50K PD 50K 1V Ê VI Ê PD Ê VI Ê Ê 1V 16K PD 16V PD PD Ê ...
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... U3760MB-N SSO44 Symbol 21 PRIND PRIVACY indication pin Open collector with minimum 1 mA drive current to GND when PRIVACY = active 22 RECIN Receive amplifier input. The receiving ampli- fication is regulated by an AGC. 24 RECO1 Output of the receive amplifier. Dynamic transducers with a minimum impedance of W 100 can be directly driven by these out- puts ...
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... N-channel open drain pulse dialing output. Flash key will cause active in either DTMF mode or pulse mode. Rev. A1, 31-May-99 Preliminary Information Function RCK VRING OUT VDD1 VDD2 HKS B/M places the dialer in DD MODE DP U3760MB-N Configuration Ê Ê 3.4V Ê Ê 0.8V Ê 200 30V 6.5K PD 50V PD Ê ...
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... U3760MB-N SSO44 Symbol 41 R1 Keyboard input Keyboard Operation /T: and pulse-to-tone key D R/P: Redial and pause function key D F1, F2, F3: Flash keys Normal Dialing OFF HOOK , D1, D2, ..., Dn will be dialed out. 2. Dialing length is unlimited, but redial is inhibited if length oversteps 32 digits. ...
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... Preliminary Information 2 R KID PDP t IDP t IDP PDP t M LOW Oscillation Normal dialing Figure 2. Pulse mode t t KRD KRD t t ITP ITP LOW HIGH Oscillation Figure 3. DTMF mode normal dialing U3760MB-N 10626 Oscillation Auto dialing 10627 t KID t ITP Oscillation 9 (20) ...
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... U3760MB-N HKS KEY IN MFO MUTE KT DP OSC 10 (20) Preliminary Information R/P t KID ITP LOW HIGH Oscillation Figure 4. DTMF auto dialing 10628 t ITP Rev. A1, 31-May-99 ...
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... The pause function is executed in normal dialing and redialing. HKS 4 2 KEY IN t KID DP t PDP MUTE KT MFO OSC Rev. A1, 31-May-99 Preliminary Information , R ..., Dn’ R IDP t t IDP PDP LOW Oscillation Figure 5. Pause function U3760MB-N 10629 t IDP 11 (20) ...
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... U3760MB-N : Pulse-to-Tone ( /T) OFF HOOK , the mode switch is set to pulse mode, then the output signal will be: D1, D2, ..., Dn, Pause (3.6 s), D1’, D2’ ,..., Dn’ (Pulse) (Tone the mode switch is set to tone mode, then the output signal will be: D1, D2, ..., Dn D1’ ...
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... PDP t = inter-digit pause IDP t = DTMF output duration TD Rev. A1, 31-May-99 Preliminary Information LOW Oscillation Figure 7. Flash operation t = intertone pause ITP t = flash break time flash pause time pause time P U3760MB-N , ..., Dn , ..., Dn 10631 ITP 13 (20) ...
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... U3760MB-N Absolute Maximum Ratings Parameters Line current DC line voltage Junction temperature Ambient temperature Storage temperature Total power dissipation amb Junction ambient Electrical Characteristics Speech Circuit Reference point Pin GND 1000 Hz, 0 dBm = 775 mV Parameters Test Conditions / Pin Line voltage ...
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... 0 200 KS Symbol Min. t KID t KRD t PDP t PDP t IDP t IDP M ITP U3760MB-N Typ. Max. Unit m 0 – 30 – 400 " 1240 Hz Typ. Max. Unit ...
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... U3760MB-N Electrical Characteristics Tone Ringer = reference point GND, unless otherwise specified kHz RCK RING amb Parameters Test Conditions / Pins Supply current RIAC outputs open Switch-on threshold V RIAC Switch-off threshold V RIAC Ringing frequency R = 150 > V ...
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... TO TESTER DC VDD a 220UF b S9 I/O VDD2 BM KT VDD1 DP MODE IN HKS CLOCK IN S11 S11 3.58 MHZ U3760MB I/O MUTE S1 PRIVACY 47NF RCK 1NF GND2 GND1 150K TO TESTER AC VMIC 100MV 8.2K 1 VGEN 100NF 1UF 25K 25K S5 S8 220NF 10K ...
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... U3760MB-N Formulas for Parameters of Elecrtrical Characteristics of Speech Circuit Formulas referred to the basic test circuit. If not otherwise specified switches in basic test circuit are inactive. Transmit gain + log VMIC VMIC = 3 mV/1 kHz open Receiving gain + log VRECO RX-mode: VGEN = 300 mV/1 kHz, S7b ...
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... Package Information Package SSO44 18.05 Dimensions in mm 17.80 0.3 0.8 16 Rev. A1, 31-May-99 Preliminary Information U3760MB-N 9.15 8.65 7.50 7.30 2.35 0.25 0.10 10.50 10.20 23 technical drawings according to DIN specifications 22 0.25 13040 19 (20) ...
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... U3760MB-N Ozone Depleting Substances Policy Statement It is the policy of TEMIC Semiconductor GmbH to 1. Meet all present and future national and international statutory requirements. 2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment ...