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TEA7089 Datasheet(PDF) 6 Page - STMicroelectronics |
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TEA7089 Datasheet(HTML) 6 Page - STMicroelectronics |
6 / 17 page ELECTRICAL SPECIFICATIONS (continued) Receive Characteristics (Tamb =25 °C; RL = 660Ω ; f = 1kHz) Symbol Parameter Test Conditions Min. Typ. Max. Unit Eff Sidetone Eff = (Vear + - Vear -) /Vm Test 3, Vm = -55dBV, IL = 22mA, R14 = 10k Ω, R17 = 15kΩ 22.5 dB GRXl GRXs Gain in Symmetric Mode Grx = (Vear + - Vear-)/ V L Test 6, VL = -14.5dBV, R14 = 10k Ω, R17 = 15k Ω, R25 = 3.9kΩ IL = 22mA IL = 90mA 0.7 -6 1.7 -4 2.7 -2 dB dB Dr Distortion Test 4, Rear = 300 Ω,IL = 22mA Vear = -12dBV Vear = -8dBV 2 5 % % Nr Noise Test 4, IL = 22mA -76 dBmp Vear (010010) Earphone Mute IL = 22mA, VL = -14.5dBV 60 dB Zout Output Impedance 20 Ω Automatic Gain Control Inhibition (Tamb =25 °C; RL = 660Ω ; f = 1kHz no AGC mode selected) Symbol Parameter Test Conditions Min. Typ. Max. Unit Gtp Grp Transmit Gain Receive Gain Test 3 & Test 4, IL = 22 to 90mA Code : 010100 Vm = -55dBV VL = -14.5dBV Gtxl -5 Grxl -5 Gtxl -4 Grxl -4 Gtxl -3 Grxl -3 dB dB Ring Characteristics (Tamb =25 °C) Symbol Parameter Test Conditions Min. Typ. Max. Unit VThri ON VThri OFF Ringing Threshold Voltage Test 5 a/b RI high (see Figure 4) Rl low (see Figure 4) 15 5 20 9 V V ICRing Internal Consumption in Ring Mode VRING = 10V 1 1.2 mA VRMC Microprocessor Supply Voltage 3.45 3.75 4.05 V tRON Rise Time IRING = 10mA 100 ms VRING Internal Zener Voltage 27 V Vbout Buzzer Vout Freq = 1312Hz Freq. Code 001111 VRING = 27Vzener (see Figure 5) Level Code (011111) Level Code (011110) Level Code (011101) Level Code (011100) 12 4.4 2.2 1 13 5.6 2.8 1.4 13.5 6.7 3.4 1.8 VRMS VRMS VRMS VRMS V bout Figure 5 : Ringer Output Waveform OFF ON Ringer Status V OFF V ON V Ringer Threshold (V THRI) Figure 4 : Ringer Hysteresis Ringer TEA7089A 6/17 |
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