S1A0071 Audio Processor for Class-D Power AMP Data Sheet (Rev. 1.0) for S1A0071 Audio Processor for Class-D Power AMP Digital & Analog Co., Ltd. Digital & Analog Co., Ltd. (Rev. 1.
S1A0071 Audio Processor for Class-D Power AMP CONTENT 1. INTRODUCTION .................................................................................................... 3 2. BLOCK DIAGRAM................................................................................................. 4 3 ABSOLUTE MAXIMUM RATINGS.......................................................................... 4 4. PIN DESCRIPTION ................................................................................................
S1A0071 Audio Processor for Class-D Power AMP 1. INTRODUCTION The S1A0071 is an Audio processor for Class D-type audio amplifier, will help you to make more easier the class D type audio amplifier and sound system. This is designed by the Cool Power TM Processing (CPP ) technology. The CPP have a characteristic of high fidelity and high power efficiency.
S1A0071 Audio Processor for Class-D Power AMP 2. BLOCK DIAGRAM 3 ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value ± Units VCC, VSS Driver supply voltage Tstg Storage Temperature –55 to 150 °C Topr Operating Temperature –25 to 75 °C Electro-Static Discharge Human Body Model, All pin 2000 V Machine Model, All pin 200 V Electric Over Stress All pin 16 V Pd Power Dissipation 1000 mW Digital & Analog Co., Ltd. 7.5 (Rev. 1.
S1A0071 Audio Processor for Class-D Power AMP 4. PIN DESCRIPTION NO. Name I/O 1 OPT I 2 OSCEN I Description Active high. If it is high, PWM output is activated after power ON Mute Time, TM . Otherwise (Default = HIGH) Triangle wave generator enable input 3 SIO B Triangle wave I/O 4 MUΤΕ I Mute control input. It is also used for external protection. Active low. Low state is muted state.
S1A0071 Audio Processor for Class-D Power AMP PIN DESCRIPTION (CONTINUED) * NO.
S1A0071 Audio Processor for Class-D Power AMP 5. ELECTRIC CHARATERISTICS ELECTRICAL CHARACTERISTICS Ta = 25°C, Vi = 0.3Vrms, f = 1kHz, VCC = 5V, VSS = -5V, RL = 4Ω, Vc = 1.0V, Power Supply Voltage (VCCP, VSSP) = ± 30V Characteristic Symbol Condition Value Min. Typ. Unit Max.
S1A0071 Audio Processor for Class-D Power AMP 6.
S1A0071 Audio Processor for Class-D Power AMP Typical Performance ±VCCP = ±Vcc = f = BW = ±25V ±5V 1kHz 22Hz 20kHz RL = 4Ω AES 17FILTER ±VCCP = ±Vcc = Po = BW = RL = ±25V ±5V 1W 22Hz 22kHz 4Ω ~ ~ Digital & Analog Co., Ltd. ±VCCP ±Vcc f BW ±25V ±5V 1kHz 22Hz 20kHz RL = 8Ω AES 17FILTER = = = = ±VCCP ±Vcc Po BW = = = = RL = ±25V ±5V 1W 22Hz 22kHz 8Ω (Rev. 1.
S1A0071 Audio Processor for Class-D Power AMP Typical Performance ±VCCP = ±Vcc = Po = RL = ±25V ±5V 10W 4Ω ±VCCP ±Vcc Po RL = = = = ±25V ±5V 5W 8Ω BW = 22Hz ~ 30KHz BW = 22Hz ~ 22KHz BW = 22Hz ~ 30KHz BW = 22Hz ~ 22KHz ±VCCP = ±25V ±Vcc = ±5V Po = 10W 19kHz, 20kHz 1:1 BW = 22Hz ~ 22kHz 0dBr = 17V RL = 4Ω Digital & Analog Co., Ltd. ±VCCP = ±25V ±Vcc = ±5V Po = 5W 19kHz, 20kHz 1:1 BW = 22Hz ~ 22kHz 0dBr = 17V (Rev. 1.
S1A0071 Audio Processor for Class-D Power AMP Typical Performance ±VCCP = ±Vcc = Po = f = BW = 0dBr RL = = ±VCCP = ±Vcc = Po = f = BW = 0dBr = RL = ±25V ±5V 1W 1kHz 22Hz 22kHz 17V 4Ω ~ ±25V ±5V 1W 1kHz 22Hz~ 22kHz 17V 8Ω Digital & Analog Co., Ltd. ±VCCP = ±Vcc = Po = f = BW = 0dBr RL = = ±VCCP = ±Vcc = Po = f = BW = 0dBr = RL = ±25V ±5V 10W 1kHz 22Hz 22kHz 17V 4Ω ~ ±25V ±5V 5W 1kHz 22Hz~ 22kHz 17V 8Ω (Rev. 1.
S1A0071 Audio Processor for Class-D Power AMP Typical Performance ±VCCP = ±Vcc = Po = BW = 0dBr = RL = ±25V ±5V 0W 22Hz~ 22kHz 17V 4Ω ±VCCP = ±Vcc = BW = 0dBr = ±25V ±5V 22Hz~ 22kHz 17V Po = 5W, RL = 8Ω Po = 10W, RL = 4Ω RL = 8Ω RL = 4Ω ±VCCP = ±25V ±Vcc = ±5V AES 17FILTER THD+N < 10% ±VCCP ±Vcc Po BW RL = = = = = ±25V ±5V 0W 22Hz~22kHz 4Ω PSRR + PSRR - Digital & Analog Co., Ltd. (Rev. 1.
S1A0071 Audio Processor for Class-D Power AMP 7. TEST CIRCUIT Digital & Analog Co., Ltd. (Rev. 1.
S1A0071 Audio Processor for Class-D Power AMP 8. APPLICATION CIRCUIT Digital & Analog Co., Ltd. (Rev. 1.
S1A0071 Audio Processor for Class-D Power AMP 9. APPLICATION NOTE Note 1 The OPT [Active high] controls the power on mute function [referred to Note 7]. User can prevent the unstable operation by using this pin and use can use this signal to prevent the POP noise during the power-on time. Note 2 The OSCEN pin controls the direction of OSC pin because OSC has a bidirectional operation.
S1A0071 Audio Processor for Class-D Power AMP Note 4 The internal gain of S1A0071 is 26dB. (Condition: R1 = R2) When user wants to get a high gain system, User can do this by changing the values of R1 and R2. In this case, the Total Gain can be obtained as follows: GAINtotal (dB ) = 20 × Log R2 + 26 R1 If the values of R1 and R2 are very high, it will expect the DC offset and if the values of R1 and R2 are very low, then the THD+N value is high on high power system.
S1A0071 Audio Processor for Class-D Power AMP Rp,Rn & Dead-Time 160 140 Dead-Time[nS] 120 100 80 60 40 20 0 40 60 80 100 120 140 160 180 200 220 240 Rp&Rn (kΩ) Note 6 The Vc ( DC Voltage of carrier frequency) sets the oscillation level of the triangle oscillator. The internal oscillation frequency is set to about 450kHz, independent of the oscillation level, an important factor that sets the conversion gain from the internal comparator to the speaker.
S1A0071 Audio Processor for Class-D Power AMP Note 7 When power is turned on, the circuit operates unstably, possibly generating noise. To prevent this unstable situation, the S1A0071 use the CDLY pin (pin# 24), which can be connected to a capacitor. This CDLY pin used to generate a slight time delay from power up to when the circuit starts to operate normally. The CDLY pin drive’s capacity is about 1.
S1A0071 Audio Processor for Class-D Power AMP (This value is obtained by dividing MOSFET power supply voltage with Rx and Ry. Considering the speaker load resistance and power supply impedance, Vls (soft clipping level) is generated. So, VLN/VLP accepts this value, and then stable operation is expected.) To decide on the actually appropriate Vls, you must monitor the output waveform at the set connected to the power supply.
S1A0071 Audio Processor for Class-D Power AMP 10. PACKAGE DIMENSIONS MIN 0.50 0.020 + 0.003 - 0.001 + 0.07 - 0.03 #25 0.50 TYP 0.020 0.20 #24 12.50 + 0.10 #48 + 0.002 0.492 + 0.004 #1 + 0.05 0.0078 1.00 0.039 0.05 0.002 1.20 0.60 0.024 +0.15 -0.10 - 0.001 0.005 + 0.003 + 0.07 0.127 - 0.03 6.10 + 0.10 0.047 MAX 0.240 + 0.004 8.10 0.319 +0.006 -0.004 Digital & Analog Co., Ltd. (Rev. 1.
