GL6962 Hynix Semiconductor, GL6962 Datasheet
GL6962
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GL6962 Summary of contents
Page 1
... Gain control curve adaptable to exchange supply DC line voltage adjustment facility Packaged in 16 DIP/SOP. GL6962/GL6962A Low Voltage Universal Speech Network PIN Configuration (TOP View TGA1 2 TGA2 GL6962 RGA 5 MIC- 6 MIC ref * Pin 12 is active LOW(MUTE) for GL6962A 1 GL6962/GL6962A SLPE 16 15 AGC REG MUTE 12 DTMF ...
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... Block Diagram MIC MIC DTMF (1) 12 MUTE SUPPLY & REFERENCE CURRENT REFERENCE Pin 12 is active LOW ( MUTE RGC RM TGC + MUTE CONTROL RM RGC TGC Ó CURRENT CONTROL 15 AGC ref ) for GL6962A. 2 GL6962/GL6962A RGA - TGA1 - + 3 TGA2 LOW VOLTAGE CIRCUIT 14 16 REG SLPE ...
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... MUTE REG 15 AGC 16 SLPE (1) Pin 12 is active LOW ( MUTE ) for GL6962A. DESCRIPTION Positive line terminal Gain adjustment: transmitting amplifier Gain adjustment: transmitting amplifier Non-inverting output: receiving amplifier Gain adjustment: receiving amplifier Inverting microphone input Non-Inverting microphone input Current stabilizer Negative line terminal ...
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... Absolute Maximum Ratings SYMBOL PARAMETER V Positive continuous line voltage LN I Line Current line Note1 GL6962 ; GL6962A V Input voltage on all other pins i Positive input voltage Negative input voltage P Total power dissipation tot Note2 GL6962 ; GL6962A T Operating ambient temperature amb T Storage temperature stg Maximum Ratings are those values beyond which damage to the device may occur ...
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... VA k§ Ù R (REG to SLPE)= 2. 15mA line MUTE = HIGH IP = 1.2mA IP = 0mA = LOW MUTE IP = 1.2mA IP = 0mA Between MIC- and MIC+ MIC- or MIC 15mA line k§ Ù with f = 300 and 3400 GL6962/GL6962A MIN TYP MAX UNIT - 1 1 3.55 4.0 4.25 V 4.9 5 ...
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... Receiving amplifier input IR (pin 10 Input impedance i Receiving amplifier output QR (pin Output impedance o G Voltage gain from ¥ Ä G Gain variation with frequency referred to vf 800Hz GL6962/GL6962A CONDITION MIN TYP - 15mA 24.0 25.5 line k§ Ù ¡ ¾ 300 and 3400 - Hz 0.2 ...
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... Reduction of gain G Voltage gain from DTMF GL6962 GL6962A Automatic gain control input AGC (pin 15) ¥ Ä G Controlling the gain from and the v gain from MIC+, MIC Gain control range GL6962/GL6962A CONDITION MIN TYP THD = 2 % sinewave drive ; R4 = 100k¥ Ø 15mA ; I = 0mA ; line p = 150 ¥ ...
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... For measuring gain from MIC+ and MIC-, the MUTE input should be LOW or open-circuit. For measuring the DTMF input, the MUTE input should be HIGH. Inputs not being tested should be open-circuit. Fig. 1 Test circuit for defining GL6962 voltage gain of MIC+, MIC- and DTMF inputs. (Voltage gain is defined 620¥ ...
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... For measuring gain from MIC+ and MIC-, the For measuring the DTMF input, the Inputs not being tested should be open-circuit. Fig. 2 Test circuit for defining GL6962A voltage gain of MIC+, MIC- and DTMF inputs. (Voltage gain is defined 620¥ Ø ...
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... R4 C4 100k¥ Ø 100pF 140mA Fig. 3 Test circuit for defining GL696 (Voltage gain is defined 20log | R1 620¥ Ø GL6962 MIC+ MIC- SLPE TGA1 REG AGC ¥ Ø 4.7•F + 100pF ¥ Ø GL6962/GL6962A 11 DTMF + ref EE C1 100• ¥ Ø ...
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... I line + 100• 600¥ Ø + 10µ 100k 100pF 140mA Fig. 4 Test circuit for defining GL6962A voltage gain of receiving amplifier. (Voltage gain is defined 620¥ Ø GL6962A RGA MIC+ MIC- SLPE TGA1 TGA2 REG AGC 68k¥ Ø 4.7•F + 100pF ...
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... Pin 12 is active LOW ( Fig. 5 Typical application of GL6962, shown there with piezo-electric earpiece and DTMF dialing. (The diode bridge, the zener diode and R10 limit current into, and the voltage across, the circuit during line transients. A different protection requirement is required for pulse dialing or register recall ...