ASAHI KASEI [AK5394A] AK5394A Super High Performance 192kHz 24-Bit ∆Σ ADC AK5394A 216kHz 24 128 2ch A/D AK5394A AK5394A 5V 3.3V 3.3V IC I/F ADC : 1kHz ∼ 216kHz S/(N+D): 110dB DR: 123dB S/N: 123dB : 0 ∼ 21.768kHz (@fs=48kHz) : 0.001dB : 120dB HPF : 5V 5%( ), 3 ∼ 5.25V( : 665mW : 28 SOP AK5392/3 SMODE1 SMODE2 12 VREFL+ VREFL- 1 14 Voltage Reference 2 VCOML 3 4 AINL+ 5 AINL6 ZCAL 25 AINR+ 24 AINR26 VCOMR 28 VREFR+ 27 VREFR23 VA FSYNC SCLK LRCK 11 ) 13 16 15 Serial Output Interface Delta-Sigma Modulator Decimation Filter HPF Delta-Sigma Modulator Decimation Filter HPF SDATA 19 HPFE 17 Voltage Reference 22 AGND 21 BGND 18 20 Controller 9 CAL MS0137-J-03 10 RSTN MCLK DFS0 DFS1 Calibration SRAM 7 VD 8 DGND 2005/05 -1- ASAHI KASEI [AK5394A] –10 ∼ +70°C 28pin SOP AK5394A Evaluation Board AK5394AVS AKD5394A VREFL+ 1 28 VREFR+ VREFL- 2 27 VREFR- VCOML 3 26 VCOMR AINL+ 4 25 AINR+ AINL- 5 24 AINR- ZCAL 6 23 VA VD 7 22 AGND DGND 8 21 BGND CAL 9 20 DFS1 RSTN 10 19 HPFE SMODE2 11 18 DFS0 SMODE1 12 17 MCLK LRCK 13 16 FSYNC SCLK 14 15 SDATA Top View AK5392/3 Pin 2 Pin 18 Pin 20 Pin 27 fs (max) MCLK at 48kHz MCLK at 96kHz MCLK at 192kHz DR S/N AK5394A AK5393 AK5392 VREFL− DFS0 DFS1 VREFR− 216kHz 256fs 128fs 64fs 123dB 123dB GNDL DFS TEST GNDR 108kHz 256fs 128fs N/A 117dB 117dB GNDL CMODE TEST GNDR 54kHz 256fs or 384fs N/A N/A 116dB 116dB MS0137-J-03 2005/05 -2- ASAHI KASEI [AK5394A] AK5392/3 AK5393 AK5394A (Analog Ground) + (Analog Ground) 0.1u 10u 0.1u 1 VREFR+ VREFL+ + 0.22u + 28 10u 10u 0.22u + 1 VREFL+ VREFR+ 28 2 VREFL- VREFR- 27 3 VCOML VCOMR 26 4 AINL+ AINR+ 25 5 AINL- AINR- 24 6 ZCAL VA 23 7 VD AGND 22 8 DGND BGND 21 9 CAL DFS1 20 + (short ) 0.22u +3.3~5V Digital + 10u 0.1u Pin# 27 VCOMR 26 AINL+ AINR+ 25 AINL- AINR- 24 6 ZCAL VA 23 7 VD AGND 22 8 DGND BGND 21 9 CAL TEST 20 10 RSTN HPFE 19 10 RSTN HPFE 19 11 SMODE2 DFS 18 11 SMODE2 DFS0 18 12 SMODE1 MCLK 17 12 SMODE1 MCLK 17 13 LRCK FSYNC 16 13 LRCK FSYNC 16 14 SCLK SDATA 15 14 SCLK SDATA 15 GNDL 3 VCOML 4 5 0.22u 0.22u + +5V Analog 0.1u 10u 10u 0.1u 18 20 27 Connected to AGND DFS TEST GNDR Connected to AGND 0.22u +5V Analog 0.1u 10u AK5394A GNDL 2 10u + +3.3~5V Digital + AK5393 10u + 10u (short ) GNDR 2 VREFL− Connected to AGND with a 10µF electrolytic capacitor, and connected to VREFL+ with a 0.22µF ceramic capacitor. DFS0 DFS1 VREFR− Connected to AGND with a 10µF electrolytic capacitor, and connected to VREFR+ with a 0.22µF ceramic capacitor. MS0137-J-03 2005/05 -3- ASAHI KASEI No. 1 Pin Name VREFL+ [AK5394A] I/O Function Lch AGND , 3.75V O , 1.25V 2 VREFL− O Lch AGND 3 4 5 VCOML AINL+ AINL- O I I Lch Lch Lch 6 ZCAL I 7 8 VD DGND - 9 CAL O VREFL− 0.22µF VREFL+ 0.22µF , 2.75V “L” : VCOML, VCOMR “H” : (AINL+/−, AINR+/−) , 3.3V “H” RSTN “H” 8704LRCK “L” 10 RSTN 11 12 SMODE2 SMODE1 13 LRCK I I I I/O “L” “H” MSB 2’s SMODE2 SMODE1 MODE L L Slave mode : L H Master mode : I S H L Slave mode :I S H H Master mode : I S L/R Master Mode (SMODE1=“H”) MS0137-J-03 LRCK : H/L : H/L : L/H : L/H “L” 2005/05 -4- ASAHI KASEI 14 SCLK [AK5394A] I/O Slave mode: 48fs Master mode: 128fs (Normal Speed Mode) MCLK 15 SDATA O 16 FSYNC I/O 17 MCLK MSB I DFS0 I 19 HPFE I 20 DFS1 I 21 22 23 24 25 26 BGND AGND VA AINRAINR+ VCOMR I I O 27 VREFR− O Rch Rch Rch Rch AGND O Rch AGND VREFR+ 2’s “L” Slave mode: “H” SDATA Master mode: 2fs 18 28 64fs (Double/Quad Speed Mode) “L” (Normal/ Double Speed Mode) (Quad Speed Mode) “L” DFS1 L L H H DFS0 L H L H DFS1 L L H H DFS0 L H L H MCLK fs(typ) 256fs 48kHz 128fs 96kHz 64fs 192kHz N/A N/A 0 Sampling Speed fs(typ) Normal 48kHz Double 96kHz Quad 192kHz N/A N/A HPF “L” : OFF “H” : ON 1 (#18 DFS0 ) , 0V , 0V , 5V , 2.75V , 1.25V VREFR+ 0.22µF VREFR− 0.22µF , 3.75V MS0137-J-03 2005/05 -5- ASAHI KASEI [AK5394A] (AGND,BGND,DGND=0V; Note 1) Parameter Power Supplies: Analog Digital |BGND − DGND| (Note 2) Input Current, Any Pin Except Supplies Analog Input Voltage Digital Input Voltage Ambient Temperature (power applied) Storage Temperature Symbol VA VD ∆GND IIN VINA VIND Ta Tstg min −0.3 −0.3 −0.3 −0.3 −10 −65 max 6.0 6.0 0.3 ±10 VA+0.3 VD+0.3 70 150 Units V V V mA V V °C °C Notes: 1. 2. AGND, BGND, DGND : IC (AGND,BGND,DGND=0V; Note 1) Parameter Power Supplies: (Note 3) Notes: 1. 3. VA Analog Digital Symbol min typ max Units VA VD 4.75 3.0 5.0 3.3 5.25 5.25 V V VD : MS0137-J-03 2005/05 -6- ASAHI KASEI ( 24 [AK5394A] Ta=25 ; ; VA=5.0V; VD=3.3V; AGND=BGND=DGND=0V; fs=48kHz; =10Hz ∼ 20kHz; DFS0=“L”, DFS1=“L”; : Figure 10 Parameter min Typ Resolution =1kHz; ) Max Units 24 Bits Analog Input Characteristics: S/(N+D) −1dBFS (Note4) −1dBFS fs=48kHz −20dBFS −60dBFS −1dBFS (Note4) fs=96kHz −1dBFS BW=40kHz −20dBFS −60dBFS −1dBFS fs=192kHz −20dBFS BW=80kHz −60dBFS (−60dBFS with A-weighted) Dynamic Range (Note4) S/N (A-weighted) 87 87 117 117 110 (Note4) Interchannel Isolation Interchannel Gain Mismatch Gain Drift After calibration, HPF=OFF Offset Error After calibration, HPF=ON Offset Drift (HPF=OFF) Offset Calibration Range (HPF=OFF) (Note5) Input Voltage (AIN+) − (AIN−) ±2.25 110 94 100 60 110 94 97 57 94 92 52 123 120 123 120 120 0.1 150 ±1000 ±1 ±10 ±50 ±2.4 0.5 ±2.55 dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB ppm/°C LSB24 LSB24 LSB24/°C mV V Power Supplies Power Supply Current VA VD (fs=48kHz; DFS0=“L”, DFS1=“L”) (fs=96kHz; DFS0=“H”, DFS1=“L”) (fs=192kHz; DFS0=“L”, DFS1=“H”) Power Dissipation Power Supply Rejection (Note 6) 127 9 13 21 665 70 Notes: 4. Figure 9 (Analog input buffer circuit example 1) 5. DC 6. 1kHz 20mVpp MS0137-J-03 VREF+/− GND 165 13.5 20 32 870 mA mA mA mA mW dB 1000µF 2005/05 -7- ASAHI KASEI [AK5394A] (fs=48kHz) (Ta=25°C; VA=5.0V±5%; VD=3.0 ∼ 5.25V; fs=48kHz, DFS0=“L”, DFS1=“L”) Parameter Symbol min typ ADC Digital Filter (Decimation LPF): Passband (Note 7) PB 0 Stopband (Note 7) SB 26.232 Passband Ripple PR Stopband Attenuation (Note 8) SA 120 Group Delay Distortion 0 ∆GD Group Delay (Note 9) GD 63 ADC Digital Filter (HPF): Frequency response (Note 7) −3dB FR 1.0 6.5 −0.1dB (fs=96kHz) (Ta=25°C; VA=5.0V±5%; VD=3.0 ∼ 5.25V; fs=96kHz, DFS0=“H”, DFS1=“L”) Parameter Symbol min typ ADC Digital Filter(Decimation LPF): Passband (Note 7) PB 0 Stopband (Note 7) SB 52.464 Passband Ripple PR Stopband Attenuation (Note 10) SA 120 Group Delay Distortion 0 ∆GD Group Delay (Note 9) GD 63 ADC Digital Filter(HPF): Frequency response (Note 7) −3dB FR 1.0 6.5 −0.1dB (fs=192kHz) (Ta=25°C; VA=5.0V±5%; VD=3.0 ∼ 5.25V; fs=192kHz, DFS0=“L”, DFS1=“H”) Parameter Symbol min ADC Digital Filter (Decimation LPF): Passband (Note 7) PB 0 Stopband (Note 7) SB 104.928 Passband Ripple PR Stopband Attenuation (Note 11) SA 120 Group Delay Distortion ∆GD Group Delay (Note 9) GD ADC Digital Filter(HPF): Frequency response (Note 7) −3dB FR −0.1dB MS0137-J-03 typ max Units 21.768 kHz kHz dB dB us 1/fs ±0.001 Hz Hz max Units 43.536 kHz kHz dB dB us 1/fs ±0.003 Hz Hz max Units 87.072 0 63 kHz kHz dB dB us 1/fs 1.0 6.5 Hz Hz ±0.007 2005/05 -8- ASAHI KASEI Notes: 7. 8. fs=48kHz [AK5394A] fs( ) 6.144MHz (n x 6.144MHz ± 21.768kHz ;n=0,1,2,3···) 9. 24 typ. 65/fs (normal/double/quad HPF=ON speed mode) 10. fs=96kHz 11. fs=192kHz 6.144MHz (n x 6.144MHz ± 43.536kHz ;n=0,1,2,3···) 6.144MHz (n x 6.144MHz ± 87.072kHz ;n=0,1,2,3···) DC (Ta=25°C; VA=5.0V±5%; VD=3.0 ∼ 5.25V) Parameter High-Level Input Voltage Low-Level Input Voltage High-Level Output Voltage Iout=-100µA Low-Level Output Voltage Iout= 100µA Input Leakage Current Symbol VIH VIL VOH VOL Iin min 70%VD VD−0.5 - MS0137-J-03 typ - max 30%VD 0.5 ±10 Units V V V V µA 2005/05 -9- ASAHI KASEI [AK5394A] (Ta=25°C; VA=5.0V±5%; VD=3.0 ∼ 5.25V; CL=20pF) Parameter Control Clock Frequency Master Clock Pulse width Low Pulse width High Serial Data Output Clock (SCLK) Channel Select Clock (LRCK) duty cycle Serial Interface Timing (Note 12) Slave Mode (SMODE1 = “L”) SCLK Period (Note 13) Normal Speed Mode Double Speed Mode Quad Speed Mode SCLK Pulse width Low Pulse width High SCLK rising to LRCK Edge (Note 14) LRCK Edge to SCLK rising (Note 14) LRCK Edge to SDATA MSB Valid SCLK falling to SDATA Valid SCLK falling to FSYNC Edge Master Mode (SMODE1 = “H”) SCLK Frequency Normal Speed Mode Double Speed Mode Quad Speed Mode SCLK duty cycle FSYNC Frequency FSYNC duty cycle SCLK falling to LRCK Edge LRCK Edge to FSYNC rising SCLK falling to SDATA Valid SCLK falling to FSYNC Edge Reset/Calibration timing RSTN Pulse width RSTN falling to CAL rising RSTN rising to CAL falling (Note 15) Normal Speed Mode Double Speed Mode Quad Speed Mode RSTN rising to SDATA Valid (Note 15) Normal Speed Mode Double Speed Mode Quad Speed Mode Notes: 12. 13. 14. 15. RSTN SCLK LRCK LRCK SCLK LRCK Symbol min typ max Units fCLK tCLKL tCLKH fSLK fs 0.256 29 29 12.288 13.824 6.144 48 13.824 216 75 MHz ns ns MHz kHz % tSLK tSLK tSLK tSLKL tSLKH tSLR tLRS tDLR tDSS tSF 1/128fs 1/64fs 1/64fs 33 33 20 20 20 20 20 ns ns ns ns ns ns ns ns ns ns fSLK fSLK fSLK dSLK fFSYNC dFSYNC tMSLR tLRF tDSS tSF tRTW tRCR L 1 25 −20 −20 128fs 64fs 64fs 50 2fs 50 20 20 Hz Hz Hz % Hz % ns tSLK ns ns 50 ns ns 20 1 −20 150 tRCF tRCF tRCF 8704 17408 34816 1/fs 1/fs 1/fs tRTV tRTV tRTV 8719 17423 34831 1/fs 1/fs 1/fs H 16fs “↑” “↑” MS0137-J-03 2005/05 - 10 - ASAHI KASEI [AK5394A] tSLK LRCK tSLR tSLKL tLRS tSLKH SCLK tDSS tDLR SDATA MSB MSB-1 MSB-2 Serial Data Timing (Slave Mode, FSYNC=“H”) LRCK tLRS tSLR SCLK tSF tSF FSYNC tDSS tDLR SDATA MSB D1 D0 Serial Data Timing (Slave Mode) tSLK LRCK tSLR tSLKL tLRS tSLKH SCLK tDSS SDATA MSB tDSS MSB-1 Serial Data Timing (I2S Slave Mode, FSYNC=Don’t Care) MS0137-J-03 2005/05 - 11 - ASAHI KASEI [AK5394A] LRCK tMSLR SCLK tSF FSYNC tSF tLRF tDSS SDATA MSB MSB-1 Serial Data Timing (Master Mode & I2S Master Mode, Normal Speed Mode) tRTW tRTV RSTN tRCF CAL tRCR SDATA Reset & Calibration Timing MS0137-J-03 2005/05 - 12 - ASAHI KASEI [AK5394A] AK5394A AK5394A MCLK, LRCK(fs), SCLK Table1, 2 MCLK LRCK AK5394A LRCK (RSTN pin = “L”) (MCLK, SCLK, LRCK) Sampling Speed DFS0 DFS1 Normal L L LRCK (fs) SCLK (Slave Mode) SCLK (Master Mode) MCLK fs Double H L ∼ 54kHz ∼ 108kHz ∼ 128fs ∼ 64fs 128fs 64fs 256fs 128fs Table 1. System Clocks MCLK 32kHz 44.1kHz 48kHz 96kHz 192kHz Quad L H ∼ 216kHz ∼ 64fs 64fs 64fs SCLK 8.1920MHz ∼ 4.0960MHz 11.2896MHz ∼ 5.6448MHz 12.2880MHz ∼ 6.1440MHz 12.2880MHz ∼ 6.1440MHz 12.2880MHz ∼ 12.288MHz Table 2. Examples of System Clock Frequency AK5394A 4 LRCK SDATA SMODE2, SMODE1 fs SMODE2, SMODE1 MSB Figure Figure 1 Figure 2 Figure 3 Figure 4 SMODE2 L L H H A/D SCLK 2’s SMODE1 Mode L Slave Mode H Master Mode L I2S Slave Mode H I2S Master Mode Table 3. Serial I/F Format MS0137-J-03 LRCK Lch=H, Rch=L Lch=H, Rch=L Lch=L, Rch=H Lch=L, Rch=H 2005/05 - 13 - ASAHI KASEI [AK5394A] LRCK(i) 0 1 2 3 20 21 22 23 24 25 15 0 1 2 3 20 21 22 23 24 25 0 1 SCLK(i) FSYNC(i) SDATA(o) 23 22 21 4 3 2 0 1 23 22 21 7 4 3 Lch Data 2 1 0 23 2 1 24 25 22 Rch Data FSYNC(i) SDATA(o) 23 22 5 4 3 1 2 0 23 22 5 4 3 0 23 23:MSB,0:LSB Figure 1. Serial Data Timing (Slave Mode) LRCK(o) 0 1 2 3 20 21 22 23 24 25 15 33 34 0 1 2 3 20 21 22 23 33 34 0 1 SCLK(o) FSYNC(o) SDATA(o) 23 22 5 4 3 1 2 0 23 22 5 4 3 2 1 0 23 Rch Data Lch Data 23:MSB,0:LSB Figure 2. Serial Data Timing (Master mode, Normal Speed Mode) LRCK(i) 0 1 2 3 19 20 21 22 23 24 0 1 2 3 19 20 21 22 23 24 0 1 SCLK(i) SDATA(o) 23 22 6 5 4 2 3 1 0 23 22 6 5 4 3 2 1 0 23 Rch Data Lch Data 23:MSB,0:LSB Figure 3. Serial Data Timing (I2S Slave mode, FSYNC: Don’t care) LRCK(o) 0 1 2 3 20 21 22 23 24 25 15 33 34 0 1 2 3 20 21 22 23 24 25 33 34 0 1 SCLK(o) FSYNC(o) SDATA(o) 23 22 5 4 3 2 1 0 23 Lch Data 23 22 5 4 3 2 1 0 23 Rch Data 23:MSB,0:LSB Figure 4. Serial Data Timing (I2S Master mode, Normal Speed Mode) MS0137-J-03 2005/05 - 14 - ASAHI KASEI [AK5394A] 1. VREF RSTN 10µF : “L” “H” VCOM VCOM 2. VREF ZCAL “H” ZCAL AIN+/− “L” CAL “H” 10µF : VREF VREF (C, Figure 5) 10µF (Figure 12) RSTN “H” VREF VREF VREF (Figure 6) C[µF] 1000 470 220 100 Table 4. VREF-GND C C + + 1 0.22u 2 Table 4 T[s]=5000 x C 5 2.4 1.1 0.5 VREFL+ AK5394A VREFL- Figure 5. VREF MS0137-J-03 2005/05 - 15 - ASAHI KASEI [AK5394A] VREF T(s) 0.005 x C VA, VD 150ns~1ms tRTW tRTV RSTN tRCF CAL tRCR SDATA Figure 6. Reset & Calibration Timing HPF AK5394A DC HPF Speed Mode), 96kHz (Double Speed Mode), 192kHz (Quad Speed Mode) fs Sampling Speed Normal Double Quad DFS1 DFS0 HPF fc fs=48kHz (Normal 1Hz fc (Cut-off frequency) L L fs/48kHz L H fs/96kHz H L fs/192kHz Table 5. Cut-off frequency MS0137-J-03 2005/05 - 16 - ASAHI KASEI [AK5394A] Figure 7 (AKD5394A) C C +3.3~5V Digital + 1 0.22u + 2 0.22u 3 VREFR+ VREFL+ + C 28 0.22u VREFR- VREFLVCOML 27 + C 0.22u VCOMR 26 AINR+ 25 Rch+ AINR- 24 Rch- VA 23 Lch+ 4 AINL+ Lch- 5 AINL- 6 ZCAL 7 VD AGND 22 8 DGND BGND 21 9 CAL DFS1 20 10 RSTN HPFE 19 11 SMODE2 DFS0 18 12 SMODE1 MCLK 17 13 LRCK FSYNC 16 14 SCLK SDATA 15 AK5394A 0.1u + 10u +5V Analog 10u 0.1u Reset & Cal Control Mode Select fs System Controller System Ground + Analog Ground Figure 7. Typical Connection Diagram Notes: - LRCK = fs, SCLK = 64fs. - VA VD - AGND, BGND, DGND / -C Table 4, Figure12 Digital Ground Analog Ground System Controller 1 VREFL+ VREFR+ 28 2 VREFL- VREFR- 27 3 VCOML VCOMR 26 4 AINL+ AINR+ 25 5 AINL- AINR- 24 6 ZCAL VA 23 7 VD AGND 22 8 DGND BGND 21 9 CAL DFS1 20 10 RSTN HPFE 19 11 SMODE DFS0 18 12 MCKS MCLK 17 13 LRCK FSYNC 16 14 SCLK SDATA 15 AK5394A Figure 8. Ground layout MS0137-J-03 2005/05 - 17 - ASAHI KASEI [AK5394A] 1. PC 2. VCOM A/D VREF+ (VREFL+, VREFR+) 0.22µF AGND VREF+/− 1000µF VREF− (VREFL−, VREFR−) VREF+ VREF− VREF+/− VREF+/− VCOM 0.22µF AGND VCOM VCOM 3. AIN+ ±2.4Vpp(typ) 2’s AK5394A (2 7FFFFFH(@24bit) 000000H(@24bit) DC AK5394A AIN− AGND VA ) 800000H(@24bit) 128fs (6.144MHz @fs=48kHz, Normal Speed Mode) 128fs 128fs AK5394A AGND−0.3V RC +5V 128fs (AIN+/−) VA+0.3V 10mA IC ±15V MS0137-J-03 2005/05 - 18 - ASAHI KASEI [AK5394A] 4. (1st order HPF; fc=0.70Hz, 2nd order LPF; fc=320kHz, gain=−14.5dB) ( JP1, JP2 ) +/−12.7Vpp fs=48kHz DR=120dB, S/(N+D)=105dB Figure 9 JP1, JP2 (AK5394A: +/−2.4Vpp typ) 4.7k 4.7k Analog In 620 JP1 VP+ Vin- + 12.7Vpp 1n 68µ 3.3k Bias VP- 91 + 2.4Vpp AK5394A AIN+ NJM5534 NJM5534 XLR 2.2n VA+ 620 10k JP2 Bias 68µ + 10k 10µ Vin+ 1n 3.3k - 91 AK5394A AIN- + 0.1µ NJM5534 Bias VA=+5V VP=±15V 2.4Vpp Figure 9. Analog input buffer circuit example 1 Fin 1Hz 10Hz Frequency Response −1.77dB −0.02dB Table 6. Frequency Response of HPF Fin 20kHz 40kHz 80kHz 6.144MHz Frequency Response 0.00dB 0.00dB 0.00dB −51.36dB Table 7. Frequency Response of LPF MS0137-J-03 2005/05 - 19 - ASAHI KASEI Figure 10 [AK5394A] AK5394A JP1, JP2 (AK5394A: +/−2.4Vpp typ) +/−12.1Vpp (1st order HPF; fc=0.66Hz, 1st order LPF; fc=590kHz, gain=−14dB) ( JP1, JP2 ) fs=48kHz DR=123dB, S/(N+D)=94dB 12.1Vpp BNC JP1 22u Vin+ 1k 180 - AK5394A AIN+ + 2.4Vpp NJM5534 VA 10k XLR 4.7k 0.1u 4.7k 4.7k 4.7k 10u JP2 + 12.1Vpp 100 10k - Vin- NJM5534 1.0n Bias 180 2.4Vpp + 22u 1k NJM5534 AK5394A AIN- Figure 10. Analog input buffer circuit example 2 Fin 1Hz 10Hz Frequency Response −1.56dB −0.02dB Table 8. Frequency Response of HPF Fin 20kHz 40kHz 80kHz 6.144MHz Frequency Response −0.005dB −0.02dB −0.08dB −20.4dB Table 9. Frequency Response of LPF MS0137-J-03 2005/05 - 20 - ASAHI KASEI [AK5394A] 5. Figure 11 [ Ta=25 24 Figure 9 Figure 10 THD+N ] ; VA=5.0V; VD=3.3V; AGND,BGND,DGND=0V; fs=48kHz; =1kHz; VREF ; =10Hz ∼ 20kHz; DFS0=“L”, DFS1=“L”, Audio Precision, System Two A KM 1000µF AK 5394A T HD +N vs Input Level -80 -82.5 -85 -87.5 -90 -92.5 Figure 10 -95 -97.5 d B -100 -102.5 Figure 9 -105 -107.5 -110 -112.5 -115 -117.5 -120 -30 -28 -26 -24 -22 -20 -18 -16 -14 -12 -10 -8 -6 -4 -2 dB r las t.at2c Figure 11. THD+N(ratio) vs. Input Level Figure 12 VREF+/− Figure 9 [ Ta=25 24 GND Table 4 THD+N ] ; VA=5.0V; VD=3.3V; AGND,BGND,DGND=0V; fs=48kHz; Figure 9 ; =10Hz ∼ 20kHz; DFS0=“L”, DFS1=“L”, Audio Precision, System Two AKM AK5394A THD+N vs Frequency -60 -65 -70 -75 220µF -80 100µF -85 d B F S -90 10µF -95 -100 -105 -110 -115 -120 -125 1000µF 470µF -130 10 20 50 100 200 500 1k 2k 5k 10k 20k Hz last.at2c Figure 12. THD+N vs. Input Frequency MS0137-J-03 2005/05 - 21 - ASAHI KASEI [AK5394A] 6. AK5394A AK5394A Lch ) −135dB Figure 13 ( (fT) fT [kHz]= 20 x Vof [mV] − 20 (Vof) Table 10 0 ∼ 20kHz 0 ∼ 40kHz 0 ∼ 80kHz Table 10. 2mV +2mV +3mV +5mV Figure 13 R 8Ω Vof = R × 5[V ] 20k + R R 20kHz 2+2=4mV +/−2mV 4mV AD Vof 620 Vin- 1n 68µ 3.3k Bias+ 5V 91 + AK5394A AIN+ NJM5534 10k Bias+ XLR 2.2n R 620 Bias68µ + 10k 10µ 0.1µ 1n 3.3k Vin+ + 91 AK5394A AIN- NJM5534 Bias- Figure 13. MS0137-J-03 2005/05 - 22 - ASAHI KASEI [AK5394A] 1.095TYP 18.7±0.3 0.75 ± 0.2 10.4 ± 0.3 7.5 ± 0.2 28pin SOP (Unit: mm) 1.27 0.10 0.4±0.1 +0.1 0.1-0.05 2.2 ± 0.1 +0.1 0.15-0.05 0.12 M 0-10° MS0137-J-03 2005/05 - 23 - ASAHI KASEI [AK5394A] AKM AK5394AVS XXXBYYYYC XXXBYYYYC XXXB: YYYYC: Date (YY/MM/DD) 02/01/09 02/07/22 05/03/08 Revision 00 01 02 Reason (X : (Y : Page 22 7 19 22 05/05/10 03 24 MS0137-J-03 ,B: ,C: ) ) Contents : Figure 9 Æ Figure 10 Figure 9 Vin+ Æ Vin-, Vin- Æ Vin+ Figure 13 Vin+ Æ Vin-, Vin- Æ Vin+ : Revision 02: 04/03/08 Æ 05/03/08 ; ; 2005/05 - 24 - ASAHI KASEI [AK5394A] • • • • • • MS0137-J-03 2005/05 - 25 -