tda8944j NXP Semiconductors, tda8944j Datasheet
tda8944j
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tda8944j Summary of contents
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... W stereo Bridge Tied Load (BTL) audio amplifier Rev. 02 — 14 February 2000 1. General description The TDA8944J is a dual-channel audio power amplifier with an output power (BTL) amplifiers with an all-NPN output stage and standby/mute logic. The TDA8944J comes in a 17-pin DIL-bent-SIL (DBS) power package ...
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... V CC2 V CC1 IN1 6 IN1 TDA8944J 9 IN2 12 IN2 STANDBY/ MODE 20 MUTE LOGIC k 11 SVR GND1 Rev. 02 — 14 February 2000 TDA8944J stereo BTL audio amplifier Min Typ Max = 0.03 0 Version SOT243-1 1 OUT1 4 OUT1 14 OUT2 ...
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... Rev. 02 — 14 February 2000 TDA8944J stereo BTL audio amplifier MBK936 © Philips Electronics N.V. 2000. All rights reserved ...
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... V CC2 OUT2+ 8. Functional description The TDA8944J is a stereo BTL audio power amplifier capable of delivering 2 output power external heatsink. The voltage gain is fixed at 32 dB. With the three-level MODE input the device can be switched from ‘standby’ to ‘mute’ and to ‘operating’ mode. ...
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... For the average listening level a power dissipation can be used for a heatsink calculation. 8.3 Mode selection The TDA8944J has three functional modes, which can be selected by applying the proper DC voltage to pin MODE. See which depend on the supply voltage level. The MODE pin can be driven by a 3-state logic output stage: e ...
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... A larger capacitor value on the SVR pin improves the ripple rejection behaviour at the lower frequencies. 8.5 Built-in protection circuits The TDA8944J contains two types of protection circuits, i.e. short-circuit and thermal shutdown. 8.5.1 Short-circuit protection Short-circuit to ground or supply line — This is detected by a so-called ‘missing current’ ...
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... V; measured in test circuit MODE i Conditions operating MODE CC operating mode mute mode standby mode 0 < V < V MODE Rev. 02 — 14 February 2000 TDA8944J stereo BTL audio amplifier Min Max 0.3 +25 0.3 + +150 40 + Value 40 6 ...
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... W o [1] [ kHz ripple [ 100 Hz ripple to 20 kHz [3] mute mode Rev. 02 — 14 February 2000 TDA8944J stereo BTL audio amplifier MGL955 MODE (V) Figure 14; audio pass band Min Typ Max ...
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... THD (%) (W) No bandpass filter applied. Fig 7. Total harmonic distortion as function of frequency. Rev. 02 — 14 February 2000 TDA8944J stereo BTL audio amplifier MGL957 MODE (V) MGL953 0 (Hz) © ...
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... Fig 9. Total power dissipation as function of supply voltage. MGL962 10 handbook, halfpage P ( (W) Fig 11. Power dissipation as function of output power. Rev. 02 — 14 February 2000 TDA8944J stereo BTL audio amplifier MGL960 (V) MGL961 ...
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... Product specification 0 cs (dB 100 Rev. 02 — 14 February 2000 TDA8944J stereo BTL audio amplifier MGL958 (Hz) MGL956 CH2 CH1 (Hz) © Philips Electronics N.V. 2000. All rights reserved ...
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... Internal circuitry Symbol Equivalent circuit IN1+ and IN1 IN2+ and IN2 8, 9 OUT1 and OUT1+ OUT2 and OUT2+ MODE 10 SVR Rev. 02 — 14 February 2000 TDA8944J stereo BTL audio amplifi 1 ...
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... IN2 MODE 10 STANDBY/ MUTE LOGIC 1 SVR 11 signal GND Rev. 02 — 14 February 2000 TDA8944J stereo BTL audio amplifi 1000 F 100 OUT1 OUT1 14 OUT2 OUT2 SHORT CIRCUIT ...
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... W stereo BTL audio amplifi OUT2 OUT2 220 nF 1.5 nF 220 nF 1 OUT1 100 nF 1000 F OUT1 Rev. 02 — 14 February 2000 TDA8944J MUTE IN2 IN2 IN1 IN1 V CC GND MGL951 © Philips Electronics N.V. 2000. All rights reserved ...
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... C. This requires a j(max kHz and 13. Rev. 02 — 14 February 2000 TDA8944J stereo BTL audio amplifier is 6.9 K/W. th(j-mb) th(mb- audio pass band kHz; © Philips Electronics N.V. 2000. All rights reserved. is ignored ...
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... 20.0 12.2 3 2.54 1.27 5.08 19.6 11.8 3.1 REFERENCES JEDEC EIAJ Rev. 02 — 14 February 2000 TDA8944J stereo BTL audio amplifier SOT243 view B: mounting base side ...
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... For SDIP packages, the longitudinal axis must be parallel to the transport direction of the printed-circuit board. 9397 750 06861 Product specification methods Soldering method Dipping suitable Rev. 02 — 14 February 2000 TDA8944J stereo BTL audio amplifier stg(max) Wave [1] suitable © Philips Electronics N.V. 2000. All rights reserved ...
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... Section 8.2.2 “Headroom” on page 5 • Section 8.3 “Mode – Standby mode: V power consumption of the TDA8944J will be reduced to <0.18 mW – Mute mode: the DC level of the input and output pins remain on half the supply voltage – 2.5 V < V – Section 8.3.1 “Switch-on and switch-off” on page 6 • ...
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... Rev. 02 — 14 February 2000 TDA8944J stereo BTL audio amplifier Philips Semiconductors assumes © ...
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... United Kingdom: Tel. +44 208 730 5000, Fax. +44 208 754 8421 United States: Tel. +1 800 234 7381 Uruguay: see South America Vietnam: see Singapore Yugoslavia: Tel. +381 11 3341 299, Fax. +381 11 3342 553 Internet: http://www.semiconductors.philips.com (SCA69) Rev. 02 — 14 February 2000 TDA8944J © Philips Electronics N.V. 2000. All rights reserved ...
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... Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights. Date of release: 14 February 2000 Document order number: 9397 750 06861 TDA8944J stereo BTL audio amplifier ...