This product is obsolete/discontinued and no further stocks are available. Please see alternatives in the category links above.
1W stereo audio amplifier module based around a TDA2822M IC (or Samsung KA2209B equivalent). Designed for portable cassette players and radios, it is ideal for battery operation.
We use the standard data book circuit for this chip and have include a volume control pot. You can feed the input from a preamplifier like 3098 into this kit. Output speakers (not supplied) should be rated 1W minimum, 4 to 8 Ohms. No heat sink required.
SpecificationsInput Power | 3 - 12 V at 200 - 500 mA max |
Idle Current | ~ 10 mA |
Output Power | > 1 Watt max. 4-8 ohms, 12V DC > 500 mW, 32 ohm, 12V > 500 mW, 4 ohm, 6V ~ 0.4 Watt RMS cont. per channel |
Output impedance | 4 - 32 Ohm |
Freq. response | ~ 40 Hz to 200 kHz, 8 ohm, G=10 < 20 Hz to > 50 kHz, 32 ohm |
THD | < 1 % @ 750 mW, 4-8 Ω, 12V < 0.2 % @ 250 mW, 4-8 Ω, 12V |
Gain | ~ x10 (20 dB) OR x100 (40dB) |
S/N ratio | > 80 dB, G = 20 dB > 60 dB, G = 40 dB |
Sensitivity | < 300 mV, G = 20 dB < 30 mV, G = 40 dB |
Input Z | ~ 10 k ohm |
Board Dimensions | 40 x 50 x 25 mm |
Board Connections | Solder pads |
Control Knob | KB0410 |
Product Formats | SELF-ASSEMBLY Electronic Kit (KT) or PRE-ASSEMBLED Electronic Module (AS) Product Formats Info |
Documentation | User Manual TDA2822M IC Data Sheet KA2209B IC Data Sheet |