GL6965 Hynix Semiconductor, GL6965 Datasheet
GL6965
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GL6965 Summary of contents
Page 1
... Description The GL6965 is a bipolar integrated circuit for use in electronic telephones. The GL6965 has low operating voltage, it pro- vides an excellent branch performance. It has line voltage increasing circuit by the exter-nal terminal. Transmitting and receiving gains automatically vary according to the line current. Features • ...
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... IL=120mA 2 Value 15 150 1300 150 TRANSMIT SW/BUFFER + 27.4K Vref + + TRANSMIT INPUT AMP VCC VCC RECEIVING DRIVE AMP 9 10 MUTE GND Min. Typ. Max. 2.9 3.2 3 1.75 1.90 2.20 5.8 6.1 6.6 GL6965 Unit MFI 5 TPO 6 7 TPI1 TPI2 8 RO2 18 RO1 19 Unit ...
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... KHz 24 26 dBV 21 KHz dBV 21.5 24.5 in 2.0 — Distortion Ratio 4% 4.0 — Distortion 3.0 — Ratio 10% 6.0 — — 0.5 0 — (Balancing Network circuit included.) =0.2V IL GL6965 Max. Unit 27.5 dB — — — — — k — k — 0.2 V Typ Unit 0 ...
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... DC potential by using capacitor at inputting external terminal. Makes negative feedback to TPI1 terminal ( Receives negative feedback from TPO terminal ( input Applies DC bias to this terminal from REF terminal ( through resistance 4 GL6965 1 pin) through 43 . Since to be connected pin) through 15 . Since ...
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... REF terminal ( direct impressing external DC voltage through capacitor at in-putting external signal Output terminal to receiver. Signal of which phase is 19 negative to RO1 terminal ( Output terminal to receiver, Signal of which phase is 18 negative to RO2 terminal ( Power supply of internal amplifiers 5 GL6965 19 18 pin, pin) 10 pin) 10 pin) 16 pin). ...
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... Test Circuit – L2 GND Telephone line Simulation Equivalent circuit T1 Trunk Beep + + R2 260 2µF + Power – ì 330pF + R8 R9 2.2K 22K 2.2K 22K + C2 330pF + T(+) DTMF Line 1 Line 2 GL6965 11 10 ...
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... Test Circuit (continued (UP REF GND GND REF V V REF 55nF T(+) R 1 55nF T(+) R 1 55nF T(+) GL6965 ...
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... Vcc IN 10K 20K PADC 25K 100K SW PADC = 20 log | OUT OUT : DIST= 4% OUT OUT Vcc 10K PADC 2 20K 25K 100K SW PADC = 20 log | OUT OUT : DIST= 10 55nF NUTE Vcc 10K 20K PADC 25K 100K SW PADC = 20 log | (dB) OUT IN (Vp- OUT : DIST= 4% GL6965 | (dB) (Vp-p) | (dB) (Vp-p) ...
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... T 1 600Ù (MU GND Receiving Gain, l Receiving Dynamic Range OUT Beep Gain, l Beep Dynamic Range OUT 510 4 150 V OUT R 2 0.022 F Insertion is required at oscillation : DIST= 10 Beep V MUTE log | (dB) G OUT (Vp-p) BP OUT : DIST= 10 55nF 0.2V MUTE A I (MU) IL GL6965 (dB) -p) OUT IN ...
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... Test Circuit (continued) 10. I (UP 11. G (Total Total Receiving Gain, G *Balancing circuit included 55nF (UP OUT V ( Total ) = 20 log | OUT IN GL6965 (dB) | ...
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... TRANSMITTER 11 GL6965 ...
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... Gain Distribution + + + + + + + + 12 GL6965 ...
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... BN time constant, adjust the time constant confirming to the function of the telephone set. EXAMPLE OF BN TIME CONSTANT can be increased by connecting UP terminal to GND directly or REF when UP terminal is directly connected under GND. CC 10k 6.2 k§ Ù 2.0 k§ Ù 0.015 F 13 CC. PIN20 ( PIN20 (UP) In case of 0.5 7dB is determined to be the center. GL6965 ...
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... This is most suitable for input from the output of open drain or open collector type. * Internal equivalent circuit. PIN9 (MUTE) PIN20 k§ Ù PIN12 (PADC) and GND, avoid impressing the voltage over that of VCC CC PIN REF 14 GL6965 Dialing Mode (High) Speech Mode (High) ...
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... In case of using transmit input amplifier as in- version input. 330pF 2.2k§ Ù 1mF T 0.47mF TRANSMITER TRANSMIT INPUT AMP 15 LOW-IMPEDANCE TYPE RECEIVER 510 4.7 F IMPEDANCE R TYPE RECEIVER 18 * Insert at oscillation 6 2.2k§ Ù 330pF _ 7 2.2k§ Ù 0.47mF + 8 2.2k§ Ù PIN GL6965 LOW- (150 ) T TRANSMITER ...
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... The side tone gain log 0.47 F 2.2k 220 620 20 B 150 14.2dB 11.1dB 2.5dB 0.2dB 1.6 dB 5 330pF 0. RS2 GL6965 RS1 2.2k 0. GL6965 5. ...
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... AC Impedance UP control. (1) Application for AC impedance up control 43¥ Ø The AC Impedance (ZAC) can be increased by using AC Bias terminal (Pin ¨ ê The AC Impedance up amount is determined by the external resistors R (2) The AC impedance ¡Ö ¡Ö 620¥ Ø 220 15¥ Ø 0 value GL6965 ...
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... Transmit Gain to Current Characteristic Test Circuit 100 120 140 0 (mA 100 Line Current, I (mA) L (A) open (B) 10k§ Ù (PADC-V (B) (C) 20k§ Ù (PADC-V (D) 25k§ Ù (PADC-GND) (A) (C) (E) 100k§ Ù ( PADC-GND) (E) ( 100 120 Line Current, I (mA) L GL6965 120 ) 140 ...
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... Line Current Test Circuit 7 24 =150§ Ù Line Current, I GL6965 ) 100 120 140 (mA) L Input Level = - 55dBV 100 120 140 (mA) L ...
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... THD 4% THD 2% 80 100 120 140 (mA) L Beep Dynamic Range to Current Charcteristic THD 4% THD 2% 80 100 120 140 Current Test Circuit 5 14 THD10 Line Current Test Circuit THD10% 8 THD Line Current, I GL6965 THD 5% 100 120 140 (mA) L 100 120 140 (mA) L ...
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... THD10% 0.8 0.6 THD 5% 0.4 0 140 Line Current Impedance to Frequency Characteristic (I 700 600 500 100 Total Receiving Gain to Current Characteristic =150§ Ù (Balancing circuit included 100 120 140 (mA 120 mA) L Frequency (Hz) 21 Test Circuit Line Current, I (mA GL6965 100 120 ...
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... Mute Terminal pull-up current characteristic Line Voltage Rise up Characteristic 5.0 4.6 4.2 3.8 3.4 3.0 Resistance between up terminal and GND terminal (§ Ù ) Test Circuit Line Current Test Circuit 2 I =20mA 0.2V IL 100 120 140 (mA) GL6965 ...
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... Input Level=-55dBV I =120mA L I =120mA L 1k Frequency (Hz) Internal Power Supply Voltage to Temperature Characteristic 16 -35¡ É 14 75¡ É 100¡ É 100 120 0 140 (mA Test Circuit Line Current, I (mA) L GL6965 -35¡ É 75¡ É 100¡ É 100 120 ...