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LT5571EUF#TR Linear Technology IC TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PQCC16, 4 X 4 MM, PLASTIC, MO-220WGGC, QFN-16, Cellular Telephone Circuit visit Linear Technology - Now Part of Analog Devices
LT5571EUF Linear Technology IC TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PQCC16, 4 X 4 MM, PLASTIC, MO-220WGGC, QFN-16, Cellular Telephone Circuit visit Linear Technology - Now Part of Analog Devices
LT5558EUF#TRBPF Linear Technology IC TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PQCC16, 4 X 4 MM, LEAD FREE, PLASTIC, MO-220WGGC, QFN-16, Cellular Telephone Circuit visit Linear Technology - Now Part of Analog Devices
LT1009M2 Linear Technology IC SPECIALTY ANALOG CIRCUIT, Analog IC:Other visit Linear Technology - Now Part of Analog Devices
LT1034-1.2#TR Linear Technology IC SPECIALTY ANALOG CIRCUIT, Analog IC:Other visit Linear Technology - Now Part of Analog Devices
LT1034-2.5#TR Linear Technology IC SPECIALTY ANALOG CIRCUIT, Analog IC:Other visit Linear Technology - Now Part of Analog Devices

telephone handset circuit schematic diagram

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telephone handset circuit schematic diagram

Abstract: sidetone cancellation application note AN2201 (single chip telephone demo board). 2. Key Features Low cost additional circuit , with Dual Soft Clipping Data Sheet AS2520/1 Telephone Speech Circuit with Loudhearing and Handsfree , amplifier is a simple, low cost add-on circuit to the AS253x single chip telephone family. It is supplied , affecting the performance of the single chip telephone. A detailed description of this circuit is given in , describes a low-cost add-on circuit for driving an 8-Loudspeaker to get a simple loudhearing
austriamicrosystems AG
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AN2202 AS2533 AN3020 telephone handset circuit schematic diagram sidetone cancellation AS253X AS2533 an2202 AS253

telephone handset circuit schematic diagram

Abstract: AD3371 additional circuit enables use of loudhearing function · Full duplex "handsfree" operation via handset , , low cost add-on circuit to the SA253x single chip telephone family. It is supplied by the line , duplex "handsfree" operation possible, when the handset is placed next to the telephone with the , # Single Chip Telephone Application Circuit Sh 01 of 01 1 8/9 2 sames D SAMES Telecom , 1 Scope This application note describes a low-cost add-on circuit for driving an 8-Loudspeaker to
Sames
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SAN2202 SAN3020 AD3371 Transistor BC327 Q1 5V-60mV BC337-10 SAN2202B loudspeaker SA253 SAS253 PDS038-SA2531/2-001

4x1N4004

Abstract: DB2101 : Evaluation Board:DB2101 AS2520/21/B Telephone Speech Circuit with Loudhearing and Handsfree 1. Scope , . The components shown in the block diagram represent the following components in the AN2101 schematic , 11 (handset, handsfree or loudhearing mode) The following graphs show a simplified block diagram , loudhearing and handsfree. Based on the DB2101 demo board all the speech functions (handset mode, loudhearing , stands only for for the AS2520B, AS2521B circuits . 2. Key Features Line/speech circuit, loudhearing
austriamicrosystems AG
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4x1N4004 bC327 25k mic electret antilarsen AN2223 AS252X AS2520 AS252 AS2521

telephone handset circuit schematic diagram

Abstract: RJ9 plug Telephone Handset Default Diagram 4 Connecting Microphone and Speaker to the W681xxxES J23 can be used to connect an RJ9 plug from a "standard" telephone handset or headset to the appropriate pins on , . SCHEMATIC COMPONENT # R3,4 R5,6 C7,8 R9 R7 R8 TELEPHONE HANDSET (Values Populated on the board , minimum for a digital telephone handset application which will allow the designers to easily connect this , acoustical chamber in the telephone type handset lets the electret microphone provide an output of ~28 mVRMS
Winbond Electronics
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W681512R W681310R RJ9 plug carbon microphone wireless microphone circuit diagram for wireless headsets 3 pins Variable resistor 10K ohm Variable resistor 10K ohm W6810ES W681512ES W681310 W6810IR

telephone handset circuit schematic diagram

Abstract: OLED display circuit schematic diagram in Figure 1 shows a full color OLED bias supply for clamshell handset sub display. U2 , VIN FB LBT ADJ C2 N/C N/C R2 GND ZXLB1600 Figure 1 Schematic diagram , DN66 An OLED bias supply for a clamshell handset sub display Description Portable applications , have infinite contrast ratio and are selfilluminating. This gives the handset manufacturer two key , handset is dormant. The ZXLB1600 is a boost converter that can provide the power requirements for OLED
Zetex Semiconductors
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BAT54S OLED display circuit OLED circuit details PLC CIRCUIT DIAGRAM without ic DN66 GRM Series oled D-81673

Rion NL05

Abstract: MINI Jack 4PIN telephone handset, external circuit (resistor and capacitor value) outside of MSM7731-02, and so on. The , Pins Test pins are mounted on the PCB for the connection to external telephone handset , for Additional Amplifier The amplifier for the line out to external telephone handset can be used as , connection to external telephone handset can be placed as an option by using the area of U15. 4pin of U15 is , availability of connection to the telephone handset. 12) Set both JP1 and JP2 to "1 (pull-up state)" as far as
OKI Electric Industry
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MSM7731-02GA LM4861 Rion NL05 MINI Jack 4PIN VO6C NL-05 78m08 NL05 MSM7731 74HC165 74HC74 74HC02

CVSD encoder

Abstract: telephone handset circuit schematic diagram ADVANCE INFORMATION · · · CMX639 Product Evaluation Telephone Handset Connectors On-board Speaker , Rate (2) Algorithm Telephone Handset (Mic) 3 Direct In CMX639 Force Idle (2) Data En Powersave Direct Out 4 V+I N Speaker Driver +20dB Telephone Handset (Earpiece) XTAL , device current, etc. Convenient I/O allows connection to a telephone handset, microphone, and/or a , Power Conditioning Telephone Handset (Mic) Audio +In Audio -In Input Conditioning 3
MX-COM
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EV6090 LM6482 2200PF 74HC04 CVSD encoder lm386 audio amplifier PCB diagram telephone handset connector Rj22 LM6482 equivalent telephone HANDSET 1000UF

telephone handset circuit schematic diagram

Abstract: telephone handset connector Rj22 ADVANCE INFORMATION · · · CMX639 Product Evaluation Telephone Handset Connectors On-board Speaker , ) Algorithm Telephone Handset (Mic) 3 Direct In CMX639 Force Idle (2) Data En Powersave Direct Out 4 V+I N Speaker Driver +20dB Telephone Handset (Earpiece) XTAL VDDI N , device current, etc. Convenient I/O allows connection to a telephone handset, microphone, and/or a , Telephone Handset (Mic) Audio +In Audio -In Input Conditioning 3 4 Dec In Force Idle (2
MX-COM
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lm386 block diagram of loudspeaker cmx639 kit LM386 lm386 microphone CVSD decoder CIRCUIT DIAGRAM audio Amplifier USING LM386

MPSA92(KSP92) equivalent

Abstract: AN2201 telephone with speech circuit, DTMF/Pulse dialer and tone ringer Versatile applications, same chip for all , block diagram represent the following components in the DB2201 schematic: ZLine: Z1: Z2: Zsyn: Zbal , Application Note AN2201 Application Note AN2201: AS2533.6 Single Chip Telephone Demo , of the Single Chip Telephone IC´s AS2533.6, based on the multi standard demo board DB2201. 2 , for handset and line cord, line connector a/b- terminals selectable by jumper Overvoltage &
austriamicrosystems AG
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MPSA92(KSP92) equivalent CI AS2536 TRANSISTOR SMD 13W smd transistor BC557 MPS A43 SCHEMATIC CI AS2534B AS2534B AS2536 AS2535

AN525

Abstract: BC327-25 SMD tools for programming the E²PROM _21 Interface circuit diagram for , Interface circuit diagram for programming the E²PROM via the parallel LPT-port 17.2 Installation and , This application note describes operation and features of the AS2525 Single Chip handsfree telephone , , a fully functional LCD + handsfree telephone. 1.1 PTT spec conformity The application hints hereafter should be understood as guidelines for other designs based on the AS252x circuit. No guarantee
austriamicrosystems AG
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AN525 AS2591 BC327-25 SMD AN500-x smd diode S4 6E PGKE Zener Diode 1b8

RCDL56ACF

Abstract: rcvdl56acfw ) [R6715] (68-PIN PLCC) TELEPHONE LINE/ TELEPHONE HANDSET/ AUDIO INTERFACE CIRCUIT TELEPHONE , HANDSET/ AUDIO INTERFACE CIRCUIT TELEPHONE LINE TEL HANDSET HEADPHONE/ SPEAKER MICROPHONE , hybrid. In Handset Mode, the RCDSVD SCP interfaces to the telephone interface circuit using the Line , .5-7 5.1.9 Telephone and Local Handset Interface , /telephone/audio interface circuit to complete the system. The standard crystal frequency is 56.448 MHz
Rockwell Semiconductor Systems
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RCDL56ACF rcvdl56acfw RCVDL56ACF/SP schematic circuit board satellite modem data circuit schematics satellite connector 4 MHz crystal KDS 2K RCVDL56ACF/SVD RCV56ACF/SVD RCV336ACF/SVD

150v varistor

Abstract: telephone line interface circuit bc517 performance telephone with speech circuit, DTMF/Pulse dialer and tone ringer Very few external low cost , components shown in the block diagram represent the following components in the DB1500I schematic: ZLine , Single Chip Telephone Application Circuit R 10C 10K R 10B 100K 2 3 sa m e s c c , sames AN1500A APPLICATION NOTE SINGLE CHIP TELEPHONE DEMO BOARD SA2532K 1 Scope This application note describes the use of the SA2532K Single Chip Telephone IC developed specifically to meet
Sames
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150v varistor telephone line interface circuit bc517 c32725 dual transistor 6 pin SMD Z2 EMC SMD MICROPHONE smd diode code 1_b PDS038-SA2532K-001

telephone handset circuit schematic diagram

Abstract: ic 4558 tone control Connect Detection monitor; * Integrated Handset Interrupt circuit; * FCC Part 68 Compliant; * Extended Temperature Range available; Figure 1: XE014JS BLOCK DIAGRAM Handset Interrupt Circuit /Hint /CD , circuit monitors line activity and indicates when the host telephone line is in use. By monitoring this signal the equipment avoids interruption of a host call in progress. The handset interrupt circuit , schematic on this page shows a simple 2/4 wire convertor circuit. recommended value for the impedance
Xecom
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ic 4558 tone control ic 4558 pin diagram cd 4558 4558 diagram application 220O P3100BA70

transistor equivalent 2n5551

Abstract: BC557 TRANSISTOR REPLACEMENT telephone with AS2522 Line Interface FSK Transmitter V.23,Bell 202, V.21, Bell103 on AS2522B only , including all external components necessary for the AN522 demoboard, which is a LCD + handsfree telephone , corded telephone devices with external microcontroller PTT spec conformity The application notes hereafter should be understood as guidelines for other designs based on the AS252x circuit. No guarantee , .5 CIRCUIT DESCRIPTION
austriamicrosystems AG
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transistor equivalent 2n5551 BC557 TRANSISTOR REPLACEMENT transistor KSP 42 2025h Application Notes AN500-x AS2522 and AS2591 AS2522A/B AS2522A/AS2522B

BABT CR 0090

Abstract: bel 187 transistor diagram Control P3400 will seize the telephone line when current flows through the OH circuit (pins 28, 27). Since , sink. DC Mask When the telephone line is seized, line current flows through a gyrator circuit within , is a simplified circuit schematic. Billing tone filter application blu^ (sup) Fig 11 2SiSJ+ sv Wri , associated telephone handset. If this feature is required the associated telephone may be wired in series , intended for direct connection to the telephone line such as modems, FAX machines etc. must be coupled to
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BABT CR 0090 bel 187 transistor diagram bel 187 transistor working bel 187 NPN TRANSISTOR auto dialling circuit bel 187 transistor BS6305 EN41003 BABT501

VOIP phone schematic

Abstract: telephone handset circuit schematic diagram Summary Voice over internet protocol (VoIP) telephone. Solution Features s Complete VoIP telephone solution: - No dependency on external processor. - All of the required software components , immunity for analog signals. - Integrated reset control circuit reduces design complexity and board , Development Board Block Diagram T8303 Phone-On-A-Chip IP Solution Product Brief April 2003 , based telephone. As shown in Figure 1, chip interfaces have been provided to allow direct integration
Agere Systems
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VOIP phone schematic cd 7231 echo cancellation schematic diagram echo audio schematic Acoustic Echo Cancellation sip phone DSP1600 PB03-114IPT

XE5690SM-1

Abstract: XE5690SM operations through a connected speaker. The schematic below shows the recommended circuit for the audio , will issue the "NO LINE" response. LINE IN USE If a telephone handset, fax machine or other piece of , line with a telephone handset as it provides the quickest access to the phone line for emergency , Interrupt: The Handset Interrupt feature permits the modem to yield the telephone line to other equipment , . · World-wide telephone networks compliance. · UL60950 Recognition · Low Power operation, 3.3 Volts
Xecom
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XE5690SM XE5690SM-1 M0010 XE2422SM XE5692SM

220O

Abstract: XE5690SM operations through a connected speaker. The schematic below shows the recommended circuit for the audio , the same telephone line. There are two line monitoring modes; Connect Detect and Handset Interrupt , off-hook and will issue the "NO LINE" response. LINE IN USE If a telephone handset, fax machine or other , to the same telephone line goes offhook. The Handset Interrupt function is controlled by registers , modem will be sharing a line with a telephone handset as it provides the quickest access to the phone
Xecom
Original
xecom modem "40 pin" V32B c3 XE5692SM-1

5110 draft sensing pin

Abstract: accelerator rockwell modem . 5-5 5.1.9 Telephone and Local Handset Interface , crystal, discrete components, and a telephone line/telephone/audio Interface circuit to complete the , handset and speaker to support functions such as AudioSpan headset and speakerphone modes, FDSP, telephone , AudioSpan audio to the local handset. 1046F1-3 ASF Figure 1-3. 2-Relay Telephone Line/Telephone/Audio , telephone line (music on hold) Record conversation through sound chips Record/playback from local handset
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5110 draft sensing pin accelerator rockwell modem SMD CODE LWW SPEAKERPHONE rcv144 Rockwell fax modem RCV336ACF/SP RCV144ACF/SP 11D73 ML144

STR 6653

Abstract: STR w 6757 for both the base station and the handset in a cordless telephone. · Programmable TX VCO with , cordless telephone into a single integrated circuit. The implemented programming enables the device to be , telephone IC UAA2062 BLOCK DIAGRAM handbook, full pagewidth ECAP VCC 1 TXPD 2 TXLF 3 , microcontroller interface and the Vref(PLL) block. The UAA2062 is used in a cordless telephone handset and in , (see definition in Chapter "Channel frequencies"). Fig.3 FM receiver schematic diagram. 2000 Aug
Philips Semiconductors
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STR 6653 STR w 6757 ci str 6653 data sheet str 6753 ic 9945 a 8 pin smd inverter STR 6753
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