DatasheetsPDF.com

AN6425 Dataheets PDF



Part Number AN6425
Manufacturers Panasonic Semiconductor
Logo Panasonic Semiconductor
Description Speech Network Circuit
Datasheet AN6425 DatasheetAN6425 Datasheet (PDF)

AN6425K Speech Network Circuit s Overview The AN6425K is a high-function speech network IC with speaker amplifier. It incorporates a transmitter-system non-linear circuit, receiver digital VRs, etc. and is suitable for realizing the multifunctional telephone sets. 26.7±0.3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 8.4±0.3 28 27 26 25 24 23 22 21 20 19 18 17 16 15 Unit : mm 0.5±0.1 0.9±0.25 1.05±0.25 4.8±0.25 3.05±0.25 0.3 + 0.1 5 – 0.0 s Features • Speech network IC for the multifunctional telephone set.

  AN6425   AN6425


Document
AN6425K Speech Network Circuit s Overview The AN6425K is a high-function speech network IC with speaker amplifier. It incorporates a transmitter-system non-linear circuit, receiver digital VRs, etc. and is suitable for realizing the multifunctional telephone sets. 26.7±0.3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 8.4±0.3 28 27 26 25 24 23 22 21 20 19 18 17 16 15 Unit : mm 0.5±0.1 0.9±0.25 1.05±0.25 4.8±0.25 3.05±0.25 0.3 + 0.1 5 – 0.0 s Features • Speech network IC for the multifunctional telephone sets • Capable of interfacing with the light-weight small receivers and ECM transmitters • Built-in 2V REG constant voltage source (2V typ) for ECM • Built-in non-linear circuits in the transmitter and receiver systems in order to eliminate ambient noises • Built-in speaker amplifier and capable of driving with a main wire current • Built-in hold-tone amplifier, key-in-tone amplifier, and DTMF transmitter, and capable of setting the mode with the control pins • Automatic gain control (automatic pad function) according to a circuit curret • Built-in tertiary active filter circuit and capable of sending a DTMF circuit with much higher harmonic at a low distortion factor • Built-in single touch receiver volume-up function (about 6dB) 3 to 15˚ 10.16±0.25 28-pin Shrunk DIL Plastic Package (SDIP028-P-0400B) s Block Diagram VL 28 27 26 25 24 23 CLASS B BTL SP Amp. CLASS A Push pull 1V 2V REG 2V HT TT in + REC DRIVER REC DRIVER 22 21 20 80kΩ – 19 18 17 16 15 + – D5dB D3dB D6dB REC in DVR + – 30kΩ 2kΩ 30kΩ 2kΩ 40kΩ KT 4kΩ 1V REFF 1V VL Battery Selector 65kΩ 1 2 3 4 5 6 SEND Amp D12 dB Filter Amp. D3dB MUTE MIC in Logic INV NAND 7 8 9 10 11 12 13 14 GND 1.778 s Absolute Maximum Ratings (Ta=25˚C) Parameter Supply voltage Supply current Power dissipation Operating ambient temperature Storage temperature * VCC × ICC <1200mW Symbol VL IL PD Topr Tstg Rating 14.4 * 120 * 1200 * –20 to + 65 –55 to +150 Unit V mA mW ˚C ˚C s Recommended Operating Range (Ta=25˚C) Parameter Operating supply voltage range Symbol VL Range 3 to 12V s Electrical Characteristics (Ta=25˚C) Parameter Receiver gain Symbol GV (REC) THD (REC) VO (REC) AP (REC) MUTE (REC) Condition Open between the Pins19 and 20. Measure the output between the Pins22 and 23 when a signal (–55dBm) is input to the Pin18. Open between the Pins19 and 20. Measure the output distortion factor between the Pins 22 and 23 when a signal (–55dBm) is input to the Pin18. min 48 typ 50.5 max 53 Unit dB Receiver distortion factor 1 5 % Receiver maximum output voltage D Automatic pad D Receiver noise prevention Receiver D digital VR Receiver noise output Transmitter gain DVR Vno (REC) GV (SEND) THD (SEND) VO (SEND) AP (SEND) Vno (SEND) GV (HOLD) GV (TOUCH) THD (TOUCH) Input a signal to the Pin18 and measure the output between the Pins22 and 23 at an output distortion factor of 5%. Input a signal (–45dBm) to the Pin18 and measure an output change between the Pins22 and 23 when IL changes from 80mA to 30mA. Input a signal (–45dBm) to the Pin18 and measure an output change between the Pins 22 and 23 when the Pin12 changes from no microphone input signal to –40dBm. Input a signal (–45dBm) to the Pin18 and measure an output change between the Pins 22 and 23 when the Pin12 is set from H to L. Measure the output between the Pins22 and 23 when there is no signal at the Pin18. Open bitween the Pins3 and 6. Measure the output between the Pins28 and 1 when a signal (–45dBm) is input to the Pin12. Open between the Pins3 and 6. Measure the output distortion factor between the Pins28 and 1 when a signal (–45dBm) is input to the Pin12. 0 +3 dBm –6 –3 –1.5 dB –7 –5 –3 dB 4 6 –50 8 –45 45 dB dBm dB 40 42.5 Transmitter distortion factor 1.5 5 % Transmitter maximum transmission level Transmitter D automatic pad Transmitter noise prevention HOLD TONE gain TOUCH TONE gain TOUCH TONE distortion factor Input a signal to the Pin12 and measure the output between the Pins28 and 1 at an output distortion factor of 5%. Input a signal (–35dBm) to the Pin12 and measure an output change between the Pins 28 and 1 when IL changes from 80mA. Measure the output between the Pins28 and 1 when there is no signal at the Pin18. Ground the Pin24. Input a signal (–30dBm) to the Pin17 and measure the output change between the Pins 28 and 1. Ground a signal (–45dBm) to the Pin16 and measure the output between the Pins28 and 1. Ground the Pin14. Input a signal (–45dBm) to the Pin16 and measure the output distortion factor between the Pins 28 and 1. 2 5 dBm –6 –3 –65 –1.5 –60 29.5 dB dBm dB 23.5 26.5 39 41.5 44 dB 1 3 % * IL=30mA and Freq=1kHz unless otherwise specified. s Electrical Characteristics (cont.) (Ta=25˚C) Parameter TOUCH TONE D automatic pad Symbol AP (TOUCH) GV (SP) THD (SP) Condition Ground the Pin14. Input a signal (–45 dBm) to the Pin16 and measure an output change between the Pins 28 and 1 when IL changes from 80mA to 30mA. Grou.


AN642 AN6425 AN6425K


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site.
(Privacy Policy & Contact)