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CMX469A 1200/2400/4800 Baud FFSK/MSK Modem – Circuit Schematic
CMX469A 1200/2400/4800 Baud FFSK/MSK Modem
CMX7031Q1 is a sub package of CMX7031, If you need see the description, please click CMX7031. If you need CMX7031Q1`s datasheet, please download it from below. ...
FX803 Signalling Processor – Circuit Schematic
FX803 Signalling Processor
The CMX469A is a single-chip CMOS LSI circuit which operates as a full-duplex 1200, 2400 or 4800 baud FFSK/MSK modem. The mark and space frequencies are 1200/18...
CM8888 CMOS INTEGRATED DTMF TRANCEIVER – Circuit Schematic
CM8888 CMOS INTEGRATED DTMF TRANCEIVER
As part of the DBS 800 System, this Audio signalling processor will provide an inband Tone signalling facility for PMR Radio systems. Signalling systems support...
CM8870 CMOS Integrated DTMF Receiver – Circuit Schematic
CM8870 CMOS Integrated DTMF Receiver
The CAMD CM8888 8888-2 is a fully integrated DTMF Transceiver, featuring adjustable guard time, Automatic Tone burst mode, call progress mode, and a fully compa...
BU8872 Dtmf Receiver For Telephones – Circuit Schematic
BU8872 Dtmf Receiver For Telephones
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BU8732AKV Codec Ic For Digital Mobile Phone – Circuit Schematic
BU8732AKV Codec Ic For Digital Mobile Phone
The BU8872 and BU8872FS are DTMF receiver ICs developed for use in telephone answering machines, and convert 16 different types of DTMF signals into 4-bit binar...
AN6591FJM Transmission / Reception Single Chip Pll Ic For Phs Cordless Telephone Panasonic Semiconductor – Circuit Schematic
AN6591FJM Transmission / Reception Single Chip Pll Ic For Phs Cordless Telephone Panasonic Semiconductor
The AN7158N is an integrated circuit designed for power Amplifier of 7. 5W (16V, 4) output with low noise and low distortion, and it suits TV set with multi-sou...
AN6426NK Hands-free Speech Network IC – Circuit Schematic
AN6426NK Hands-free Speech Network IC
AN6591FJM is a single chip IC optimum for PHS, and a quadrature Modulator reception IF and PLL are inte- grated in it. As this IC is housed in a QFN package (qu...
AMIS-49200-XTP Fieldbus MAU – Circuit Schematic
AMIS-49200-XTP Fieldbus MAU
The AMU2481 Audio Mixer is a digital realtime signal processor in NMOS technology, housed in a 24pin Dil plastic package or in a 44pin PLCC package. It is de- s...
DTMF Transeivers – Circuit Schematic
DTMF Transeivers
The A3425 is a dualoutput-channel, bipolar Switch with each channel comprising a separate complete Hall-effect Sensor circuit with dedicated Hall element and se...
A933 Transistor Telephone Listening – Circuit Schematic
A933 Transistor Telephone Listening
The following circuit shows about A933 Transistor Telephone Listening Circuit Diagram. Features: can be tuned from 88 to about 94Mhz, simple .....
LM1889 IC For Simple TV Transmitter – Circuit Schematic
LM1889 IC For Simple TV Transmitter
The following circuit shows about simple TV Transmitter Circuit Diagram. This circuit based on the LM1889 IC. Features: quadrature chroma modulators and RF .....
6-12 Chanel TV Transmitter-Coupling – Circuit Schematic
6-12 Chanel TV Transmitter-Coupling
Description:  This circuit shows about 6-12 Chanel TV Transmitter-Coupling Circuit Diagram. Features: used to stabilize the 10 P to work in the 6-12 channel .....
Telephone transmitter – Circuit Schematic
Telephone transmitter
This is a simple, but very useful circuit that can be used to transmit telephone conversations. When the telephone receiver is on hook the voltage across the li...
Telephone pickup preampliifer – Circuit Schematic
Telephone pickup preampliifer
Here is a simple circuit based on IC uA 741 that can be used to pickup voice from telephone lines without even contacting the line. If a high impedance magnetic...
Telephone off-hook indicator – Circuit Schematic
Telephone off-hook indicator
The circuit depicted here can be used as an indicator when the telephone receiver is off-hook. The circuit can be in corporated with old telephones that does no...
Telephone in use indicator – Circuit Schematic
Telephone in use indicator
Here is a simple circuit that can be used as a telephone status indicator. When the telephone is in use (off hook) the transistor Q1 switches ON making the red ...
MC1374 TV transmitter circuit – Circuit Schematic
MC1374 TV transmitter circuit
Simple TV transmitter circuit using the TV modulator circuit IC MC1374. 12V supply, channel 3 or 4 operation, FM modulation for sound.....
FM telephone bug – Circuit Schematic
FM telephone bug
A simple telephone transmitter circuit that is ideal for transmitting the telephone conversation through small distances. The circuit is very simple and uses on...
Contactless telephone ringer circuit – Circuit Schematic
Contactless telephone ringer circuit
The contact less telephone ringer circuit can produce a ring as well as a visual indication when a call comes. The main advantage is that since there is no dire...