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Low_noise_flat_frequency_response_preamplifier_using_an_ECG1020_thin_film_hybrid_module

Published:2009/7/20 2:44:00 Author:Jessie

Low_noise_flat_frequency_response_preamplifier_using_an_ECG1020_thin_film_hybrid_module
Low-noise flat-frequency-response preamplifier using an ECG1020 thin-film hybrid module. At 1 kHz with the switch off typical voltage gain is 66 dB; with the switch on typical voltage gain is 42.5 dB (courtesy GTE Sylvania Incorporated).   (View)

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1_watt_phonograph_amplifier_for_ceramic_cartridges_with_16_ohm_speaker

Published:2009/7/20 2:30:00 Author:Jessie

1_watt_phonograph_amplifier_for_ceramic_cartridges_with_16_ohm_speaker
1-watt phonograph amplifier for ceramic cartridges with 16-ohm speaker. See table for component values. Sensitivity is approximately 450 mV. The gain of this amplifier is determined by (R7 + R10)/R5. To alter the gain, change R5 and hold (R7 + R10) between 1M and 2.2M. Bass boost can be eliminated by removing C4 and replacing (R7 + R10) with a fixed resistor value at 2.2M (courtesy GTE Sylvania Incorporated).   (View)

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Record_playback_amplifier_for_cassette_and_portable_tape_recorders

Published:2009/7/20 2:30:00 Author:Jessie

Record_playback_amplifier_for_cassette_and_portable_tape_recorders
Record/playback amplifier for cassette and portable tape recorders (courtesy GTE Sylvania Incorporated).   (View)

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1_watt_class_B_audio_amplifier_with_preamplifier

Published:2009/7/20 2:27:00 Author:Jessie

1_watt_class_B_audio_amplifier_with_preamplifier
1-watt class B audio amplifier with preamplifier. Supply voltage VCC1 and VCC2 are 9.0 volts and 12.0 volts, respectively. Sensitivity is 45 mV. Power gain is 75 dB. Input resistance is 55K. Signal-to-noise ratio is 66 dB. Use a standard class B audio output transformer with the appropriate speaker load (courtesy GTE Sylvania Incorporated).   (View)

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The ADV7175 and ADV7176 digital video encoding integrated circuits

Published:2011/7/20 1:32:00 Author:Borg | Keyword: digital, video encoding, integrated circuits

The ADV7175 and ADV7176 digital video encoding integrated circuits
The ADV7175 and ADV7176 digital video encoding integrated circuits

1.pin functionsADV7175 and ADV7176 integrated circuits support many standards of CCIR601/624/656 and SMPE170M, which is in I2C control method, and it can convert the YCRCB video data of 8 or 16-bit into Y, U and V in the patten of 4:4:4, and the 4 internal lObitDAC can output R, G and B, or Y, U and V, or S-VHS and Y/C or mixed video signals. It contains the low-pass filter, color control circuit YUV, RGB matrix circuit, brightness double sampling circuit, image-text TV units and so on.   (View)

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SIREN_POWER_AMPLIFIER

Published:2009/7/9 23:31:00 Author:May

SIREN_POWER_AMPLIFIER
Four-transistor class AB audio amplifier delivers 200 w to four loudspeakers. Standby power drain is 12 w.Input is obtained from warble generator.-W.F. Ferguson, High-Powered Audio Alarm Systems, Electronics, 33:16, p 70-72.   (View)

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4_watt_class_A_audio_amplifier_using_an_ECG755_audio_driver_IC

Published:2009/7/20 2:26:00 Author:Jessie

4_watt_class_A_audio_amplifier_using_an_ECG755_audio_driver_IC
4-watt class A audio amplifier using an ECG755 audio driver IC. This audio amplifier is ideal for automotive applications. The ECG755 is a 4-lead package and is designed to drive a PNP power output transistor such as the EGG104 (courtesy GTE Sylvania Incorporated).   (View)

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025_watt_AF_amplifier_using_a_16_ohm_speaker

Published:2009/7/20 2:22:00 Author:Jessie

025_watt_AF_amplifier_using_a_16_ohm_speaker
0.25-watt AF amplifier using a 16-ohm speaker. Supply voltage should be approximately 12 volts (courtesy GTE Sylvania Incorporated).   (View)

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1_watt_AF_amplifier_for_phonographs_with_ceramic_cartridges_using_a_16_ohm_speaker

Published:2009/7/20 2:21:00 Author:Jessie

1_watt_AF_amplifier_for_phonographs_with_ceramic_cartridges_using_a_16_ohm_speaker
1_watt_AF_amplifier_for_phonographs_with_ceramic_cartridges_using_a_16_ohm_speaker
1_watt_AF_amplifier_for_phonographs_with_ceramic_cartridges_using_a_16_ohm_speaker

1-watt AF amplifier for phonographs with ceramic cartridges, using a 16-ohm speaker. Sensitivity is 100 mV for 1-watt output. Supply voltage should be 16 volts (courtesy GTE Sylvania Incorporated).   (View)

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05_watt_audio_amplifier_for_an_AM_FM_radio

Published:2009/7/20 2:20:00 Author:Jessie

05_watt_audio_amplifier_for_an_AM_FM_radio
0.5-watt audio amplifier for an AM/FM radio. The ECG745 is an 8-pin DIP (courtesy GTE Sylvania Incorporated ).   (View)

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05_watt_AF_amplifier_for_a_phonograph_with_a_ceramic_cartridge

Published:2009/7/20 2:14:00 Author:Jessie

05_watt_AF_amplifier_for_a_phonograph_with_a_ceramic_cartridge
0.5-watt AF amplifier for a phonograph with a ceramic cartridge. The ECG745 is an 8-pin DIP (courtesy GTE Sylvania Incorporated).   (View)

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1_watt_phonograph_amplifier_with_an_8_ohm_speaker

Published:2009/7/20 2:11:00 Author:Jessie

1_watt_phonograph_amplifier_with_an_8_ohm_speaker
1-watt phonograph amplifier with an 8-ohm speaker. Intended for use with a ceramic cartridge. Sensitivity approximately 450 mV. The gain of the amplifier is determined by (R7+R10)/R5. To change the gain, alter the value of R5 and hold (R7+R10) between 1M and 2.2M. Bass boost can be eliminated by removing C4 and replacing (R7+R10) with a fixed resistor valued at 2.2M (courtesy GTE Sylvania Incorporated).   (View)

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2_watts_per_channel_dual_audio_amplifier_using_an_ECG804_IC

Published:2009/7/20 2:38:00 Author:Jessie

2_watts_per_channel_dual_audio_amplifier_using_an_ECG804_IC
2-watts-per-channel dual audio amplifier using an ECG804 IC. For 8-ohmspeaker loads use a 20-volt supply, for 16-ohm sneaker loads use a 24-voltsupplyand for 4.ohm speaker loads use a 12-volt supply (courtesy GTE Sylvania Incorporated).   (View)

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Low_noise_AF_preamplifier

Published:2009/7/20 2:36:00 Author:Jessie

Low_noise_AF_preamplifier
Low-noise AF preamplifier. The preamplifier provides 0.9 volts output at 1 kHz witha 2 mV input. ECG1015 is a hybrid module (courtesy GTE Sylvania Incorporated).   (View)

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HIGH_SPEED_SAMPLE_AND_HOLD

Published:2009/7/9 23:11:00 Author:May

HIGH_SPEED_SAMPLE_AND_HOLD
This circuit uses the speed and drive capability of the HA-5190 coupled with two high-speed DMOS FET switches. The input amplifier is allowed to operate at a gain of -5, although the overall circuit gain is unity. Acquisition times of less than 100 ns to 0.1% of a 1-V input step are possible. Drift current can be appreciably reduced by using FET input buffers on the output stage of the sample-and-hold.   (View)

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SIREN_PREAMPLI_FIER

Published:2009/7/9 23:11:00 Author:May

SIREN_PREAMPLI_FIER
Supplies signals to remote power ampliters and loudspeakers of fire and civil defense systems. Input can be from electronic siren generator, magnetic tape, or microphone.-W. F. Ferguson, High-Powered Audio Alarm Systems, Electronics, 33:16, p 70-72.   (View)

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60_W_225-400_MHz_AMPLIFIER

Published:2009/7/9 23:06:00 Author:May

60_W_225-400_MHz_AMPLIFIER
This 60-W, 28-V broadband amplifier covers the 225-400 MHz military communications band. The amplifier may be used singly as a 60-W output stage in a 225-400 MHz transmitter, or by using two of these amplifiers combined with quadrature couplers, a 100-W output amplifier stage can be constructed.The circuit is designed to be driven from a 50-Ω source and work into a nominal 50-Ω load. The input network consists of two microstrip L-sections composed of Z1, Z2, and C2 through CG. C1 serves as a dcblocking capacitor. A 4:1 impedance ratio coaxial transformer T1 completes the input matching network.L1 and a ferrite bead serve as a base decoupling choke. The output circuit consists of shunt inductor L2 at the collector, followed by two microstrip L-sections composed of Z3, Z4, and C8 through C11. C12 serves as a dc blocking capacitor, and is followed by another 4:1 impedance ratio coaxial transformer. Collector decoupling is accomplished through the use of L3, L4, C14, C15, C16, and R1.   (View)

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05_watt_OTL_audio_power_amplifier_using_an_ECG1031

Published:2009/7/20 2:41:00 Author:Jessie

05_watt_OTL_audio_power_amplifier_using_an_ECG1031
0.5-watt OTL audio power amplifier using an ECG1031. Typical voltage gain at 1 kHz is 50 dB. Input impedance is 20K (courtesy GTE Sylvania).   (View)

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4_watt_audio_power_amplifier_with_a_7_mV_sensitivity_for_automobile_applications

Published:2009/7/20 2:40:00 Author:Jessie

4_watt_audio_power_amplifier_with_a_7_mV_sensitivity_for_automobile_applications
4-watt audio power amplifier with a 7 mV sensitivity for automobile applications. By changing the output transistors the output can be increased up to 20 watts (courtesy GTE Sylvania Incorporated).   (View)

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UHF_TV_PREAMPLIFIER

Published:2009/7/9 23:03:00 Author:May

UHF_TV_PREAMPLIFIER
An inexpensive, antenna-mounted, UHF-TV preamplifter can add more than 25 dB of gain. The first stage of the preamp is biased for optimum noise, the second stage for optimum gain. L1, L2 strip line ≈λ/8 part of PC board.   (View)

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