MC33219ADW Freescale Semiconductor, Inc, MC33219ADW Datasheet
MC33219ADW
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MC33219ADW Summary of contents
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... 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 ...
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MAXIMUM RATINGS Rating Supply Voltage Any Input Maximum Junction Temperature Storage Temperature Range NOTE: Devices should not be operated at or outside these values. The “Recommended Operating Conditions” provide for actual device operation. RECOMMENDED OPERATING CONDITIONS Characteristic Supply Voltage (Non–AGC ...
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ELECTRICAL CHARACTERISTICS ( 5 Characteristic ATTENUATORS Receive Attenuator Gain (f = 1.0 kHz) Full Volume R x Mode T x Mode Idle Mode Range ( Mode) Volume ...
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ELECTRICAL CHARACTERISTICS ( 5 Characteristic LEVEL DETECTORS AND BACKGROUND NOISE MONITORS T x –R x Switching Threshold (Pins 4, 11) CPR, CPT Output Resistance (for Pulldown) CPR, CPT Leakage Current CPR, ...
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V in 3.5 mV 1.0 kHz MCI NOTE Attenuator forced to transmit mode 350 mV 1.0 kHz RXI NOTE Attenuator ...
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Pin Symbol 1 CP2 A capacitor at this pin stores voltage representing the transmit background noise and speech levels for the background noise monitor. 2 XDI Input to the transmit background noise monitor. 3 CPT An RC sets the time ...
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Figure 2. MC33219A Block Diagram and Test Circuit From Microphone To 2–4 Wire Converter 0.47 300 k 3.0 k MCO TAI MCI V B Mute 18 Normal Mute V B Volume VLC 19 Control (See 0.1 Figure ...
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Figure 3. Attenuator Gain versus V CT (Pin 7) 10 Transmit Receive Attenuator Attenuator 0 –10 – 20 – 30 – 40 – 50 –100 50 – – (mV) Figure 5. Receive Gain versus ...
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Figure 9. CD Input Characteristics (Pin Valid for 1.0 2.0 3.0 4.0 INPUT VOLTAGE (V) Figure 11. Power Supply Current 6.0 5.0 4.0 3.0 2.0 1 ...
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Figure 15. Microphone Amplifier Muting versus Feedback Resistor 100 100 k RF, FEEDBACK RESISTOR ( ) Figure 17. Idle Î Î Î Î Î Î ...
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Figure 18. Idle 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 200 mVrms, 1.0 kHz Î Î Î Î Î Î Î ...
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Figure 19. Transmit Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î 200 mVrms, 1.0 kHz TAI Î Î Î Î Î Î Î Î Î Î Î Î Î Î ...
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Figure 20. Transmit Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î 200 mVrms, 1.0 kHz TAI Î Î Î Î Î Î Î Î Î Î Î Î ...
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Figure 21. Transmit Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î 200 mVrms, 1.0 kHz TAI Î Î Î Î Î Î Î Î Î Î Î Î ...
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CD Input (Pin 8) Î Î Î Î 5.0 s Î Î Î Î Î Î Î Î Output at RAO, TAO Î Î Î Î NOTE: Enable time t 1 depends on the length of t OFF according to ...
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Introduction The fundamental difference between the operation of a speakerphone and a telephone handset is that of half–duplex versus full–duplex. The handset is full duplex, meaning conversation can occur in both directions (transmit and receive) simultaneously. This is possible due ...
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Voltage Clamps Level Detectors There are two identical level detectors: one on the receive side and one on the transmit side (refer to Figure 26). Each level detector is a ...
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C R Signal 500 Input XDI V B (RLI) 2.0 A External Component Values are Application Dependent. Volume Control The volume control input at VLC (Pin 19) is sensed as a voltage with respect The volume ...
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Figure 15. Muting occurs as the mute input pin is taken from 1.4 V. The voltage on this pin must be operation, and ...
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Switching and Response Time Theory The switching time of the MC33219A circuit is dominated first by the components (Pin 7, see Figure 2), and second by the capacitors at the level detector outputs (RLO, TLO). The transition ...
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The distortion in the receive attenuator will increase as the C T capacitor value is decreased. The extra THD will be most noticeable at the lower frequencies and ...
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Design the hybrid, ensuring proper interface with the phone line for both DC and AC characteristics. The return loss must be adjusted to comply with the appropriate regulatory agency. The sidetone should then be adjusted according to the intent ...
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Grounding CPT does the same for the transmit path. Additionally, the receive background noise monitor is automatically disabled by the dial tone detector whenever the receive signal exceeds the detector’s threshold. Dial Tone ...
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All other input pins should also be considered sensitive to RFI signals. In The Final Analysis ... Proper operation of a speakerphone ...
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– eas agnit ude communication signal, usually expressed in dB. Bandwidth – The range of information carrying frequencies of a ...
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Return Loss – Expressed in dB measure of how well the telephone’s AC impedance matches the line’s AC characteristic impedance. With a perfect match, there is no reflected signal, and therefore infinite return loss calculated ...
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SEATING PLANE 0.25 (0.010) –A– 0.010 (0.25 –T– SEATING PLANE MOTOROLA ANALOG IC DEVICE ...
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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 ...