MC33219ADW Motorola, MC33219ADW Datasheet
MC33219ADW
Available stocks
Related parts for MC33219ADW
MC33219ADW Summary of contents
Page 1
... This device contains 384 active transistors. MOTOROLA ANALOG IC DEVICE DATA SPEAKERPHONE CIRCUIT Transmit Out V B BNM DTD Device Receive In MC33219ADW MC33219AP Motorola, Inc. 1995 Order this document by MC33219A/D MC33219A VOICE SWITCHED SEMICONDUCTOR TECHNICAL DATA SUFFIX PLASTIC PACKAGE CASE 724 ...
Page 2
... PSRR – – – – – I CTR –110 I CTT 35 I CTI – 3 – VLC – –8.0 R VLC – MOTOROLA ANALOG IC DEVICE DATA Typ Max Unit – 6.5 Vdc – 3.5 – 300 mVrms – Vdc Vdc – 0.8 – ...
Page 3
... RECEIVE AMPLIFIER (Pins 16, 17) Output Offset with Respect ( Input Bias Current (Pin 17) Open Loop Gain (f < 100 Hz) Gain Bandwidth Maximum Output Voltage Swing (1% THD) Maximum Output Current Capability MOTOROLA ANALOG IC DEVICE DATA MC33219A 0.8 V, unless noted. See Figure 2.) Symbol Min G RX 3.0 G RXT – ...
Page 4
... CD – t ENC – Figure 22 THD T – THD R – – 3.18 3.23 131 119 2.09 2.17 –80 – 6.9 6 MOTOROLA ANALOG IC DEVICE DATA Typ Max Unit 1.0 1.2 A 5.0 – – 0.2 – A 1.9 – Vdc – 2.0 – mA 500 – 2.0 – A 1.0–1.4 – Vdc 115 160 k 75 – ...
Page 5
... MCI NOTE Attenuator forced to transmit mode 350 mV 1.0 kHz RXI NOTE Attenuator forced to receive mode. MOTOROLA ANALOG IC DEVICE DATA MC33219A Figure 1. System Distortion Test MCO TAI Attenuator RXO RAI Attenuator TAO ...
Page 6
... Input of the transmit attenuator. Input impedance is nominally 100 TAO Output of the transmit attenuator Power Supply Pin. Operating Range is 2 6.5 Vdc. Bypassing is required. 6 MC33219A PIN FUNCTION DESCRIPTION Description 40 dB. No effect in the transmit or idle mode. Current flow is MOTOROLA ANALOG IC DEVICE DATA ...
Page 7
... 100 13 GND 47 100 MC34119 Speaker Amplifier NOTES: 1. All capacitors are in F unless otherwise noted. 2. Values shown are suggested initial values only. See Applications Information for circuit adjustments. MOTOROLA ANALOG IC DEVICE DATA MC33219A Transmit Output 4.7 k 0.1 5 1.0 0.1 TAO XDI Attenuator ...
Page 8
... Characteristics versus Frequency 100 100 mVrms 60 TLO 20 RLO CP2 V out 0 1.0 F – 20 160 200 100 MOTOROLA ANALOG IC DEVICE DATA Volume Control 3 3 2.9 V Circuit in Receive Mode –1.0 – 0.8 – 0.6 – 0.4 – 0.2 VLC VOLTAGE, WITH RESPECT (V) Characteristics TLI TLO ...
Page 9
... V CC (V) Figure 13 Power Supply Rejection versus Frequency and V B Capacitor 100 1000 100 200 1 FREQUENCY (Hz) MOTOROLA ANALOG IC DEVICE DATA MC33219A Figure 10. Mute Input Characteristics (Pin 18) 120 5.0 6.0 7.0 0 1.0 Figure 12 Output Characteristics 4.0 3 ...
Page 10
... VLC VOLTAGE, WITH RESPECT (V) Transmit Timing 5.0 mVrms 37 mVrms 85 ms 270 mV 100 mV 225 ms Time Constant 120 mV MOTOROLA ANALOG IC DEVICE DATA 2 6.5 V – 0.8 – 0.6 – 0.4 – 0.2 0 Î Î Î Î Î Î Î Î Î Î Î Î Î Î ...
Page 11
... RLO NOTE: Refer to Figure 2 for component values. Timing and output amplitudes shown are nominal, and are for the indicated input signal and component values. Actual timing and outputs will vary with the application. MOTOROLA ANALOG IC DEVICE DATA MC33219A Receive Timing 5.0 mVrms ...
Page 12
... MOTOROLA ANALOG IC DEVICE DATA Î Î Î Î Î Î Î Î Î ...
Page 13
... Timing and output amplitudes shown are nominal, and are for the indicated input signal and component values. Actual timing and outputs will vary with the application. 3. Time t 1 depends on the ratio of the on–off amplitude of the signal at TAI. MOTOROLA ANALOG IC DEVICE DATA MC33219A Receive Timing (Long Cycle Timing) Î ...
Page 14
... MOTOROLA ANALOG IC DEVICE DATA Î Î Î Î Î ...
Page 15
... Output at MCO Î Î Î Î MOTOROLA ANALOG IC DEVICE DATA MC33219A Figure 22. Chip Disable Timing t OFF Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î ...
Page 16
... T x –R x comparator operated by the level detectors, two background noise monitors, the volume control, the dialtone detector, and the AGC circuit. These six functions are described as follows. MOTOROLA ANALOG IC DEVICE DATA The output until the output current limit (see specs ...
Page 17
... C R Signal 500 Input TLI V B (RLI) 2.0 A External Component Values are Application Dependent. MOTOROLA ANALOG IC DEVICE DATA MC33219A Figure 25 Attenuator Control Circuit MC33219A I 1 Control Circuit AGC Background Noise Monitors The purpose of the background noise monitors is to distinguish speech (which consists of bursts) from background noise (a relatively constant signal) ...
Page 18
... Figure 30). The amplifier is not disabled in this mode; MCO remains a low impedance output, and MCI remains a virtual ground The amount of muting (the CPT (CPR) 100 Attenuator Control Circuit Attenuator RAI To Attenuator Control Circuit MOTOROLA ANALOG IC DEVICE DATA ...
Page 19
... Figure 14. The output impedance is <10 until current limiting is reached (typically 2.0 mA peak). The input bias current at RXI is typically 30 nA out of the pin. MOTOROLA ANALOG IC DEVICE DATA MC33219A Power Supply and Chip Disable The power supply voltage at Pin between 3.5 1 and 6 ...
Page 20
... this should be done with caution for two reasons the switching time is too short, the circuit response may appear to be “too quick” to the user, who may consider its operation erratic. The recommended values in this data sheet, along with the accompanying timings, provide what MOTOROLA ANALOG IC DEVICE DATA ...
Page 21
... AC ) Coupling RAO Speaker Speaker Amp MOTOROLA ANALOG IC DEVICE DATA MC33219A properties are just as important (just as equally important) as the electronics. One of the major issues involved in a speakerphone design is the acoustic coupling of the speaker to the microphone, which must be minimized. This parameter is dependent entirely on the design of the enclosure, the mounting of the speaker and the microphone, and their characteristics ...
Page 22
... For testing or circuit analysis purposes, the transmit or receive attenuators can be set to the ON position, even with steady signals applied, by disabling the background noise monitors. Grounding the CPR pin will disable the receive background noise monitor, thereby indicating the “presence MOTOROLA ANALOG IC DEVICE DATA * ...
Page 23
... the receive attenuator input is AC coupled to the receive amplifier or to other circuitry, then the offset is set at RAI. The circuits in Figure 33 are suggested for changing the threshold. MOTOROLA ANALOG IC DEVICE DATA MC33219A Figure 33. Adjusting Dial Tone Detector Threshold (AC Coupled) Audio Signal ...
Page 24
... RLI) until satisfactory operation is obtained for both long and short lines. For additional information on speakerphone design please refer to The Bell System Technical Journal, Volume XXXIX (March 1960, No. 2). MOTOROLA ANALOG IC DEVICE DATA ...
Page 25
... The name is derived from old telephones where the switch was activated by lifting the receiver off and onto a hook on the side of the phone. MOTOROLA ANALOG IC DEVICE DATA MC33219A GLOSSARY Hybrid – A two–to–four wire converter. ...
Page 26
... PREM Magnetics, Inc. McHenry, IL 60050 815–385–2700 Various models – ask for catalog Motorola does not endorse or warrant the suppliers referenced. 26 MC33219A Tip – One of the two wires connecting the central office to a telephone. The name is derived from the tip of the plugs used by operators (in older equipment) to make the connection ...
Page 27
... 0.25 (0.010) –A– 0.010 (0.25 –T– SEATING PLANE MOTOROLA ANALOG IC DEVICE DATA MC33219A OUTLINE DIMENSIONS P SUFFIX PLASTIC PACKAGE CASE 724–03 –B– NOTE 0.25 (0.010 SUFFIX PLASTIC PACKAGE CASE 751E– ...
Page 28
... Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different applications. All operating parameters, including “ ...