ak4522 AKM Semiconductor, Inc., ak4522 Datasheet
ak4522
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ak4522 Summary of contents
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... The AK4522 has a dynamic range of 100dB and is well-suited middle-range MD, surround system, musical instruments and car audio. Signal inputs and outputs are single-ended. The DAC outputs are analog filtered to remove out of band noise. External components are minimized. The AK4522 is available in a small 24pin VSOP package, which will reduce system space. ...
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... ASAHI KASEI n Ordering Guide AK4522VF -10 AKD4522 Evaluation Board for AK4522 n Pin Layout VREFH 1 AINR+ 2 AINR- 3 AINL+ 4 AINL AGND 7 DIF0 8 9 DIF1 LRCK 10 SCLK 11 SDTI 12 M0020-E-01 +70 C 24pin VSOP (0.65mm pitch) Top View - 2 - [AK4522] 24 VCOM 23 AOUTR 22 AOUTL 21 CMODE DGND 18 VD ...
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... AOUTL I Lch Analog Output Pin 23 AOUTR I Rch Analog Output Pin 24 VCOM O Common Voltage Output Pin, VA/2 Note: All input pins except pull-down pins should not be left floating. M0020-E-01 PIN/FUNCTION Function (Internal Biased pin [AK4522] 1998/10 ...
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... M0020-E-01 ABSOLUTE MAXIMUM RATINGS Symbol min VA -0.3 VD -0.3 (Note 2) - GND IIN - VINA -0.3 VIND -0.3 Ta -10 Tstg -65 Symbol min VA 4 [AK4522] max Units 6.0 V 6 VA+0.3 V VD+0 150 C typ max Units 5.0 5 1998/10 ...
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... Differential Inputs; Analog Source Impedance=470 (Note 4) 84 (Note 5) 94 (Note (Note 7) 2.85 20 (Note 8) 80 (Note 5) 95 (Note 2.65 5 (Note [AK4522] typ max Units 20 Bits 92 dB 100 dB 100 dB 110 dB 0.1 0 ppm/ C 3.0 3.15 Vpp ...
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... SB 24. -0.5dB -0.1dB PB 0 -6.0dB DIGITAL CHARACTERISTICS 5.5V) Symbol min VIH 70%VD VIL - VIH 95%VD VIL - VOH VD-0.4 VOL - Iin - - 6 - [AK4522] typ max Units 19.76 kHz 20.02 kHz 20.20 kHz 22.05 kHz kHz dB 0.005 dB 29.3 1/ 0.9 Hz 2.7 Hz 6.0 Hz 20.0 kHz 22.05 kHz kHz dB 0.06 dB 14.7 1/fs 0.2 dB typ Max Units ...
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... Reset Timing PD Pulse Width PD “ ” to SDTO valid (Note 14) Note 13. SCLK rising edge must not occur at the same time as LRCK edge. 14. These cycles are the number of LRCK rising from PD rising. The AK4522 can be reset by bringing PD “L”. M0020-E-01 SWITCHING CHARACTERISTICS 5.5V; C =20pF) L ...
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... ASAHI KASEI n Timing Diagram LRCK tSLR SCLK tLRM SDTO tSDS SDTI PD SDTO M0020-E-01 tSLKL tLRS tSDH Serial Interface Timing (Slave mode) tPD tPDV Reset & Initialize Timing - 8 - [AK4522] 50%VD tSLKH 50%VD tSSD 50%VD 50%VD 70%VD 30%VD 1998/10 ...
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... Don’t Care Figure 1. Mode 0 Timing - 9 - [AK4522] SCLK 64fs 128fs 2.048MHz 4.096MHz 2.822MHz 5.644MHz 3.072MHz 6.144MHz L/R SCLK H/L 32fs H/L 40fs H/L 40fs L/H 32fs or 40fs ...
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... SCLK(i:64fs) SDTO( SDTI( 19:MSB, 0:LSB n Digital High Pass Filter The ADC of AK4522 has a digital high pass filter for DC offset cancel. The cut-off frequency of the HPF is 0.9Hz at fs=44.1kHz and also scales with sampling rate (fs). M0020-E- Don’ ...
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... ASAHI KASEI n De-emphasis Filter The DAC of AK4522 includes the digital de-emphasis filter (tc=50/15us) by IIR filter. This filter corresponds to three frequencies (32kHz, 44.1kHz, 48kHz). The de-emphasis filter selected by DEM0 and DEM1 is enabled for input audio data. The de-emphasis is also disabled at DEM0=”1” and DEM1=”0”. ...
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... ASAHI KASEI n Power-Down & Reset The ADC and DAC of AK4522 are placed in the reset mode by bringing a reset pin, PD “L”. This reset should always be done after power-up. In case of the ADC, an analog initialization cycle starts after exiting the reset mode. Therefore, the output data, SDTO becomes available after 516 cycles of LRCK clock. This initialization cycle does not affect the DAC operation ...
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... VCOM 2 AINR+ AOUTR 0.1u 3 AOUTL AINR- CMODE 4 AINL+ 0.1u 5 AINL- PD AK4522 6 VA DGND 7 VD AGND 8 DIF0 MCKI 9 DIF1 DEM1 10 LRCK DEM0 11 SCLK SMUTE 12 SDTI SDTO Figure 7. Typical Connection Diagram - 13 - [AK4522] 2.7 5.5V Digital Supply 0.1u + 10u 0. 10u 17 16 Mode 15 Setting 14 13 1998/10 ...
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... LRCK 11 SCLK 12 SDTI System Controller Figure 8. Ground Layout 5V digital VD VD System AK4522 Controller Case 1. 5V system 3V digital VD VD System AK4522 Controller Case 2. 5V/3V system Figure 9. Power Supply Arrangement - 14 - [AK4522] VCOM 24 AOUTR 23 AOUTL 22 CMODE DGND MCKI 17 DEM1 16 DEM0 15 SMUTE 14 13 SDTO ...
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... The ideal code is 00000H(@20bit) with no input signal. The DC offset is removed by the internal HPF. The AK4522 samples the analog inputs at 64fs. The digital filter rejects noise above the stop band except for multiples of 64fs. A simple RC filter (fc=150kHz) may be used to attenuate any noise around 64fs and most audio signals do not have significant energy at 64fs ...
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... The output signal is inverted by using the circuit in this case. 27u AOUTL + 2.9Vpp Vop BIAS 0.1u + 10u Figure 11. External analog circuit example (gain=6dB) M0020-E-01 10k 18k Vop=12V Vop 10u - 4. NJM5532 4.7k Rch Op-amp Optional amp with 6dB gain - 16 - [AK4522] Lch Out 5.2Vpp 27k 1998/10 ...
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... ASAHI KASEI 24pin VSOP (Unit: mm) *7.8 0. 0.22 0.1 Seating Plane | 0.10 NOTE: Dimension "*" does not include mold flash. n Package & Lead frame material Package molding compound: Lead frame material: Lead frame surface treatment: M0020-E-01 PACKAGE 0.65 Detail A Epoxy Cu Solder plate - 17 - [AK4522] 1.25 0.2 0.15 0.05 0.1 0-10 1998/10 ...
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... AKM harmless from any and all claims arising from the use of said product in the absence of such notification. M0020-E-01 MARKING AKM AK4522VF AAXXXX Contents of AAXXXX AA: Lot# XXXX: Date code IMPORTANT NOTICE - 18 - [AK4522] 1998/10 ...