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TDA1557 Datasheet(PDF) 7 Page - NXP Semiconductors |
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TDA1557 Datasheet(HTML) 7 Page - NXP Semiconductors |
7 / 10 page May 1992 7 Philips Semiconductors Product specification 2 x 22 W BTL stereo car radio power amplifier with speaker protection TDA1557Q AC CHARACTERISTICS VP = 14.4 V; RL = 4 Ω; f = 1 kHz; Tamb = 25 °C; unless otherwise specified. See note 1. Notes to the characteristics 1. All characteristics are measured using the circuit shown in Fig.4 2. The circuit is DC adjusted at VP = 6 to 18 V and AC operating at VP = 8.5 to 18 V 3. At 18 V < VP < 30 V, the DC output voltage ≤ VP/2 4. Conditions: V11 = 0; short-circuit output to GND; switch V11 to MUTE or ON condition (rise time V11 > 10 µs). 5. Frequency response externally fixed. 6. Ripple rejection measured at the output with a source-impedance of 0 Ω (max. ripple amplitude of 2 V) and a frequency of 100 Hz. 7. Ripple rejection measured at the output with a source-impedance of 0 Ω (max. ripple amplitude of 2 V) and a frequency between 1 and 10 kHz. 8. Ripple rejection measured at the output with a source-impedance of 0 Ω (max. ripple amplitude of 2 V) and a frequency between 100 Hz and 10 kHz. Pin 12 is decoupled with two diodes to ground. 9. Noise voltage measured in a bandwidth of 20 Hz to 20 kHz. 10. Noise output voltage independent of RS (Vin = 0). SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT PO output power THD = 0.5% 15 17 − W THD = 10% 20 22 − W VP = 13.2 V; THD = 0.5% − 12 − W VP = 13.2 V; THD = 10% − 17 − W THD total harmonic distortion PO = 1 W − 0.1 − % B power bandwidth THD = 0.5%; PO = −1 dB − 20 to − Hz with respect to 15 W 15 000 flow low frequency roll-off −1 dB; note 5 − 25 − Hz fhigh high frequency roll-off −1 dB 20 −− kHz Gv closed loop voltage gain 45 46 47 dB SVRR supply voltage ripple rejection ON; note 6 34 −− dB ON; note 7 38 −− dB ON; note 8 45 −− dB MUTE; notes 6 and 7 45 −− dB stand-by; notes 6 and 7 80 −− dB ZI input impedance 25 30 36 k Ω Vno noise output voltage ON; RS = 0; note 9 − 325 500 µV RS = 10 kΩ; note 9 − 350 −µV MUTE; notes 9 & 10 − 180 −µV α channel separation 40 −− dB ∆Gv channel unbalance −− 1dB |
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