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AKD4632 Datasheet(PDF) 8 Page - Asahi Kasei Microsystems |
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AKD4632 Datasheet(HTML) 8 Page - Asahi Kasei Microsystems |
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8 / 70 page  ASAHI KASEI [AK4632] MS0396-E-00 2005/06 - 8 - Parameter min typ max Units Speaker-Amp Characteristics: SPP/SPN pins, MIN SPP/SPN, ALC2=OFF, RL=8Ω, BTL, SVDD=3.3V Output Voltage SPKG1-0 bits = “00” (-0.5dBFS) 2.47 3.09 3.71 Vpp (Note 14) SPKG1-0 bits = “01” (-0.5dBFS) 3.10 4.00 4.80 Vpp S/(N+D) at 150mW Output 20 60 - dB at 240mW Output - 50 - dB at 400mW Output - 20 - dB S/N (Note 16) 80 90 - dB Load Resistance 8 - - Ω Load Capacitance - - 30 pF Speaker-Amp Characteristics: MIN SPP/SPN pins, ALC2=OFF, CL=3µF, Rserial=10Ω x 2, BTL, SVDD=5.0V SPKG1-0 bits = “10” - 6.72 - Vpp Output Voltage (Note 14) SPKG1-0 bits = “11” 6.80 8.50 10.20 Vpp SPKG1-0 bits = “10” - 60 - dB S/(N+D) (Note 14) (Note 15) SPKG1-0 bits = “11” 20 50 - dB S/N (Note 15) (Note 16) 80 80 90 dB Load Impedance (Note 17) 50 - - Ω Load Capacitance - - 3 µF BEEP Input: BEEP pin, External Input Resistance= 20k Ω Maximum Input Voltage (Note 18) - 1.98 - Vpp Output Voltage (Input Voltage=0.6Vpp) BEEP SPP/SPN (SPKG1-0 bits = “00”) 0.74 1.48 2.22 Vpp BEEP AOUT 0.3 0.6 0.9 Vpp Mono Input: MIN pin Maximum Input Voltage (Note 19) - 2.18 - Vpp Input Resistance (Note 20) 12 24 36 k Ω Mono Output: MOUT pin, DAC → MOUT Output Voltage (Note 21) 1.78 1.98 2.18 Vpp Load Resistance 10 - - k Ω Load Capacitance - - 30 pF Note 14. The full scale of Input signal of MIN pin is 1.98Vpp. Note 15. In case of measuring between SPP pin and SPN pin directly. Note 16. There are no relations with the setup of SPKG1-0 bits, and it is the same value. Note 17. Load impedance is total impedance of series resistance and piezo speaker impedance at 1kHz in Figure 35. Load capacitance is capacitance of piezo speaker. When piezo speaker is used, 10 Ω or more series resistors should be connected at both SPP and SPN pins, respectively. Note 18. The maximum input voltage of the BEEP is proportional to AVDD voltage and external input resistance(Rin). Vout = 0.6 x AVDD x Rin/20k Ω(max). Note 19. Maximum Input Voltage is proportional to AVDD voltage. Vin = 0.66 x AVDD (max) Note 20. When ALC2 Gain is changed, this typical value changes between 22k Ω and 26kΩ. Note 21. Output Voltage is proportional to AVDD voltage. Vout = 0.6 x AVDD (typ) |
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