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SA2532CS датащи(PDF) 2 Page - Sames |
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SA2532CS датащи(HTML) 2 Page - Sames |
2 / 22 page 2/22 SA2532 sames PIN DESCRIPTION Pin# Symbol Function 23 M1 Microphone Inputs 24 M2 Differential inputs for the microphone (electret). 3 RO1 Receiver Outputs 2 RO2 These are the outputs for driving a dynamic earpiece with an impedance of 100 to 300 Ω 5A GND Analog Ground This is the analog ground for the amplifiers. 28 RI Receive Input This is the input for the receive signal. 6STB Side Tone Balance Input This is the input for side tone cancellation. 1LS Line Current Sense Input This is the input for sensing the line current. 27 LI Line Input This input is used for power extraction and line current sensing. 25 CS Current Shunt Control Output This N-channel open drain output controls the external high power shunt transistor for the modulation of the line voltage and for shorting the line during make period of pulse dialling. 4V DD Positive Voltage Supply This is the supply pin for the circuit. 26 V SS Negative Power Supply 8MO Melody Output Pulse Density Modulated output of the melody generator for tone ringer. At high impedance when not active. 21 FCI Frequency Comparator Input This is a Schmitt trigger input for ring frequency discrimination. Disabled during off-hook. 10 HS/DP Hook Switch Input and Dial Pulse Output This is an I/O that is pulled high by the hook switch when off- hook. An open drain pulls it low during break periods of pulse dialling and flash. 11 OSC Oscillator Input Oscillator pin for Xtal or ceramic resonator (3.58 MHz). 9 LLC Line Loss Compensation Select pin for line loss compensation. 12 RR Repetition Rate Select pin for repetition rate of melody. 22 MODE Signalling Mode Select Input Mode pin Function High LD default mode, make/break = 33/66 ms Open MF only Low LD default mode, make/break = 40/60 ms 20 R1 Keyboard Rows 19 R2 18 R3 17 R4 16 C1 Keyboard Columns 15 C2 14 C3 13 C4 7CI Complex Impedance Input Input pin for the capacitor in the complex impedance |
Аналогичный номер детали - SA2532CS |
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Аналогичное описание - SA2532CS |
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