4/28/2015

TDA1562Q Audio Amplifier 50W

 TDA1562Q general description:

Philips designers have further improved a number of properties of the IC, among which the power output. According to the Philips datasheet, the improved device, the TDA1562Q, can deliver 70 watts into 4 ohms, but that is at the cost of the distortion, which at 10 per cent is rather too high, even for in a car. The prototype of the design described in this article provides 54 watts into 4 ohms at 1 per cent distortion. Since the number of requisite external components is smaller than in the case of the earlier device, the printed-circuit board is even more compact than that for the February 1995 amplifier.


 TDA1562Q features:


  • Low power dissipation during reproduction of music signals
  • Proof against short-circuits
  • Protection against excessive temperatures
  • Standby switch
  • No power-on or power-off clicks
  • Visible error indication
  • Measurement results (at Ub=14.4 V)
  • Supply voltage 8–18 V
  • Sensitivity 760 mV r.m.s.
  • Input impedance 70 kΩ
  • Power output 54 W r.m.s. into 4 Ω (f=1 kHz; THD+N=1%)
  • Harmonic distortion (THD+) at 1 W into 4 Ω: 0.046% (1 kHz)0.29% 20Hz) at 35 W into 4 Ω: 0.12% (1 kHz) 0.7% (20 kHz)
  • Signal-to-noise ratio (with 1 W into 4 Ω) 88 dBA
  • Power bandwidth 7.5 Hz – 185 kHz (at 25 W into 4 Ω)
  • Quiescent current about 135 mA (‘on’)


TDA1562Q applications:


  • Television sets
  • Home-sound sets
  • Multimedia systems
  • All mains fed audio systems
  • Car audio (boosters).

TDA1562Q amplifer diagram:


TDA1562Q pcb:


TDA1562Q part lists:

  • R1= 1MΩ
  • R2 = 4kΩ7
  • R3 = 1kΩ
  • R4 = 100kΩ
  • Capacitors:
  • C1,C2 = 470nF
  • C3,C4 = 10µF 63V radial
  • C5,C6,C8 = 4700µF 25V radial
  • (18mm max. dia., raster 7.5 mm)
  • C7 = 100nF, raster 5 mm
  • Semiconductors:
  • D1 = high-efficiency-LED
  • IC1 = TDA1562Q (Philips)
  • Miscellaneous:
  • S1 = single-pole on/off switch
  • Four spade connectors, PCB mount
  • Heatsink for IC1 (Rth<2.5 K/W)
  • PCB, order code 000004-1 (see Readers Services pages)

TDA7560 Audio Amplifier 4x50W

TDA7560 general description:



TDA7560 is a 4 x 45W QUAD BRIDGE car audio amplifier plus HSD. The TDA7560’s inputs are ground-compatible and can stand very high input signals (± 8Vpk) without any performances degradation. If the standard value for the input capacitors (0.1mF) is adopted, the low frequency cut-off will amount to 16 Hz. The TDA7560 is a breakthrough BCD (Bipolar / CMOS / DMOS) technology class AB Audio Power Amplifierin Flexiwatt 25 package designed for high power car radio. The fully complementary P-Channel/N-Channel output structure allows a rail to rail output voltage swing which, combined with high output current and minimised saturation losses sets new power references in the car-radio field, with unparalleled distortion performances.

TDA7560 features:

  • 4 x 50W/4W MAX.
  • 4 x 45W/4W EIAJ
  • 4 x 30W/4W @ 14.4V, 1KHz, 10%
  • 4 x 80W/2W MAX.
  • 4 x 77W/2W EIAJ
  • 4 x 55W/2W @ 14.4V, 1KHz, 10%
  • EXCELLENT 2W DRIVING CAPABILITY
  • HI-FI CLASS DISTORTION
  • LOW OUTPUT NOISE

TDA7560 amplifier circuit diagram:

TDA7560 Audio Amplifier 4x50W
TDA7560 Audio Amplifier 4x50W

TDA7560 layout:

pcb layout TDA7560 Audio Amplifier 4x50W
pcb layout for TDA7560 Audio Amplifier 4x50W
pcb layout TDA7560 Audio Amplifier 4x50W
pcb layout TDA7560 Audio Amplifier 4x50W

4/27/2015

TDA8922 Audio Amplifier 2 x 25W

TDA8922 general description:



The TDA8922 is a high efficiency class-D audio power amplifier with very low dissipation. The typical output power is 2 × 25 W. The device is available in the HSOP24 power package with a small internal heatsink and in the DBS23P through-hole power package. Depending on the supply voltage and load conditions, a very small or even no external heatsink is required. The amplifier operates over a wide supply voltage range from ±12.5 to ±30 V and
consumes a very low quiescent current. TDA8922 Audio Amplifier 2 x 25W


TDA8922 features:
  • High efficiency (∼90%)
  • Operating supply voltage from ±12.5 to ±30 V
  • Very low quiescent current
  • Low distortion
  • Usable as a stereo Single-Ended (SE) amplifier or as a mono amplifier in Bridge-Tied Load (BTL)
  •  Fixed gain of 30 dB in Single-Ended (SE) and 36 dB in Bridge-Tied Load (BTL)
  • High output power
  • Good ripple rejection
  • Internal switching frequency can be overruled by an external clock
  • No switch-on or switch-off plop noise
  • Short-circuit proof across load and to supply lines
  • Electrostatic discharge protection
  • Thermally protected.

TDA8922 aplications:
  • Television sets
  • Home-sound sets
  • Multimedia systems
  • All mains fed audio systems
  • Car audio (boosters).

TDA8922 circuit:



Circuit diagram TDA8922 Audio Amplifier 2 x 25W
Circuit diagram TDA8922 Audio Amplifier 2 x 25W
TDA8922 layout and pcb:
pcb layout TDA8922 Audio Amplifier 2 x 25W
pcb layout TDA8922 Audio Amplifier 2 x 25W

TDA8922 datasheet:


TDA7482 Audio Power Amplifier 1-channel 1 x 25W

TDA7482 general description:



The TDA7482 is an audio class-D amplifier assembled in Multiwatt15 package specially designed for high efficiency applications mainly for TV and HomeStereo sets. TDA7482 Audio Amplifier 1 x 25W

TDA7482 features:



  • 25W OUTPUT POWER:
  • RL =8Ω/4Ω; THD = 10%
  • HIGHEFFICIENCY
  • WIDE SUPPLY VOLTAGE RANGE (UP TO±25V)
  • SPLITSUPPLY
  • OVERVOLTAGEPROTECTION
  • ST-BY AND MUTEFEATURES
  • SHORTCIRCUIT PROTECTION
  • THERMALOVERLOADPROTECTION

TDA7482 circuit diagram:

TDA7482 Audio Amplifier 1 x 25W
TDA7482 Audio Amplifier 1 x 25W circuit diagram

TDA7482 sterio circuit layout:

PCB layout TDA7482 Audio Amplifier 1 x 25W
TDA7482 Audio Amplifier 1 x 25W pcb layout

LM386N Audio Power Amplifer Amplifier 1x2W

LM386N general description:


The LM386 is a power amplifier designed for use in low voltage consumer applications. The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between pins 1 and 8 will increase the gain to any value up to 200. The inputs are ground referenced while the output is automatically biased to one half the supply voltage. The quiescent power drain is only 24 milliwatts when operating from a 6 volt supply, making the LM386 ideal for battery operation. LM386N Audio Amplifier 1x2W

LM386N features:

  • Battery operation
  • Minimum external parts
  • Wide supply voltage range: 4V–12V or 5V–18V
  • Low quiescent current drain: 4mA
  • Voltage gains from 20 to 200
  • Ground referenced input
  • Self-centering output quiescent voltage
  • Low distortion: 0.2% (AV = 20, VS = 6V, RL = 8Ω, PO =
  • 125mW, f = 1kHz)
  • n Available in 8 pin MSOP package

LM386N circuit diagram:

<h2>LM386N Audio Amplifier 1x2W</h2>
LM386N Audio Amplifier 1x2W

LM386N layout:

LM386N pcb layout
LM386N pcb layout

LM386N pin layout:

LM386N pin layout:
LM386N pin layout:

NCP2890 Audio Amplifier 1W

NCP2890 general description:

The NCP2890 is an audio power amplifier designed for portable communication device applications such as mobile phone applications. The NCP2890 is capable of delivering 1.0 W of continuous average power to an 8.0 BTL load from a 5.0 V power supply, and 320 mW to a 4.0 BTL load from a 2.6 V power supply. The NCP2890 provides high quality audio while requiring few external components and minimal power consumption. It features a low−power consumption shutdown mode, which is achieved by driving the SHUTDOWN pin with logic low. The NCP2890 contains circuitry to prevent from “pop and click” noise that would otherwise occur during turn−on and turn−off transitions. For maximum flexibility, the NCP2890 provides an externally controlled gain (with resistors), as well as an externally controlled turn−on time (with the bypass capacitor). Due to its excellent PSRR, it can be directly connected to the battery, saving the use of an LDO. This device is available in a 9−Pin Flip−Chip CSP (standard Tin−Lead and Lead−Free versions) and a Micro8 package. NCP2890 Audio Amplifier 1W

NCP2890 features:

  • 1.0 W to an 8.0  BTL Load from a 5.0 V Power Supply
  • Excellent PSRR: Direct Connection to the Battery
  • “Pop and Click” Noise Protection Circuit
  • Ultra Low Current Shutdown Mode
  • 2.2 V−5.5 V Operation
  • External Gain Configuration Capability
  • External Turn−on Time Configuration Capability
  • Up to 1.0 nF Capacitive Load Driving Capability
  • Thermal Overload Protection Circuitry
  • AEC−Q100 Qualified Part Available
  • Pb−Free Packages are Available
  • NCV Prefix for Automotive and Other Applications Requiring Site and Control Changes

NCP2890 aplications:

  • Portable Electronic Devices
  • PDAs
  • Wireless Phones

NCP2890 circuit diagram: 

NCP2890 Audio Amplifier 1W
Circuit diagram NCP2890 Audio Amplifier 1W

NCP2890 layout pcb: 

PCB layout NCP2890 Audio Amplifier 1W
PCB layout NCP2890 Audio Amplifier 1W

TDA8560Q Audio amplifier 2x40W

TDA8560Q general description:

Unfortunately, some of the proposed scheme in the network and even a scheme recommended by the developer (Philips), fail to achieve the desired result. As an example of how not to suggest that you include the TDA8560 material published on Online Soldering: Car Amplifier 2x40 Watt (I should note that everything except the input circuits and the number of points on diet, still deserves attention). the initial inclusion of IMS (at power up, the load is connected and there is no input signal) can throw you into a state of perplexity / mild shock (it depends on the degree of hope is for your TDA). Chip is unstable, there are noises when the input signal is amplified last weakly and passed with distortions. IC bypass surgery fixed resistor at the input, the other measures in consultation with the source device does not help. Why and what to do? Really caught Palen chip and will have to buy a new one? Not so fast! The fact that Philips did not include measures to prevent the self-excitation of the IC, but I think they know about it, but do not tell anyone (not good, gentlemen!) Rid chip excitement can (and should) in a way that is not described here. This is so far, my little secret. Usually TDA8560 include approximately recommend the following scheme: TDA8560Q Audio amplifier 2x40W

TDA8560Q Features:

  • Supply voltage: 6 - 18; typical 14.4 V.
  • The peak output current: 7.5 A.
  • The current in idle mode: 120 mA.
  • Long-term power output, with
  • RL = 4 ohms, THD = 10%, F = 1 kHz, 25 W,
  • RL = 2 ohms, THD = 10%, F = 1kHz: 40W.
  • Voltage gain, Au: 40 dB.
  • Input Impedance: 30 ohms.
  • Input Sensitivity: 100 mV.
  • Frequency response: 20 - 20000 Hz.
  • Requires very few external components
  • High output power
  • Low output offset voltage
  • Fixed gain
  • Diagnostic facility (distortion, short-circuit and temperature detection)
  • Good ripple rejection
  • Mode select switch (operating, mute and standby)
  • Load dump protection
  • Short-circuit safe to ground, to VP and across the load
  • Low power dissipation in any short-circuit condition
  • Thermally protected
  • Reverse polarity safe
  • Electrostatic discharge protection
  • No switch-on/switch-off plop
  • Flexible leads
  • Low thermal resistance.

TDA8560Q amplifier diagram, circuit:

TDA8560Q amplifier diagram, circuit
TDA8560Q amplifier diagram, circuit

TDA8560Q layout:

TDA8560Q amplifier Layout
TDA8560Q amplifier Layout

TDA8560Q amplifier pcb
TDA8560Q amplifier pcb

Datasheet for TDA8560Q: Download

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200W Audio Amplifier Circuit

Circuit description: Connecting two TDA2030 thru cheap power transistors we can create a amplifier wich can deliver a higher power. Wi...

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