ASAHI KASEI [AK5385B] AK5385B 24Bit 192kHz ∆Σ ADC AK5385B A/D 8kHz ∼ 216kHz ∆Σ AK5385B AV AV AK5385B 28pin VSOP 28pin SOP : 8kHz ∼ 216kHz S/(N+D): 103dB DR: 114dB S/N: 114dB : 0 21.768kHz (@fs=48kHz) : 0.005dB : 100dB HPF 5V ± 5% 3.0 ∼ 5.25V 183mW (@fs=48kHz) 28 SOP, 28 VSOP AK5383/AK5393/AK5394A VCOM OVF M/S DFS1 DFS0 CKS1 CKS0 PDN VREFL LIN+ LIN- Delta-Sigma Modulator Decimation Filter HPF LRCK Audio I/F Controller RIN+ RIN- Delta-Sigma Modulator Decimation Filter BICK MCLK SDTO HPF VREFR TEST AVDD AVSS DVDD DVSS BVSS DIF HPFE Block diagram MS0406-J-00 2005/08 -1- ASAHI KASEI [AK5385B] AK5385BVS AK5385BVF AKD5385B –10 ~ +70°C –40 ~ +85°C AK5385B 28pin SOP (1.27mm pitch) 28pin VSOP (0.65mm pitch) VREFL 1 28 VREFR AVSS 2 27 AVSS VCOM 3 26 TEST LIN+ 4 25 RIN+ LIN- 5 24 RIN- CKS0 6 23 AVDD DVDD 7 22 AVSS DVSS 8 21 BVSS OVF 9 20 DFS1 PDN 10 19 HPFE DIF 11 18 DFS0 M/S 12 17 MCLK LRCK 13 16 CKS1 BICK 14 15 SDTO Top View MS0406-J-00 2005/08 -2- ASAHI KASEI [AK5385B] AK5383/AK5394A Pin 1 Pin 2 Pin 3 Pin 6 Pin 9 Pin 11 Pin 12 Pin 16 Pin 18 Pin 20 Pin 26 Pin 27 Pin 28 fs MCLK at 48kHz MCLK at 96kHz MCLK at 192kHz DR, S/N Input Voltage Offset Calibration AK5385B VREFL AVSS VCOM CKS0 OVF DIF M/S CKS1 DFS0 DFS1 TEST AVSS VREFR 8kHz ∼ 216kHz 256/384/512fs 256fs 128fs 114dB ±2.9Vpp Not Available MS0406-J-00 AK5383 VREFL GNDL VCOML ZCAL CAL SMODE2 SMODE1 FSYNC DFS TEST VCOMR GNDR VREFR 1kHz ∼ 108kHz 256fs 128fs Not Available 110dB ±2.45Vpp Available AK5394A VREFL+ VREFL− VCOML ZCAL CAL SMODE2 SMODE1 FSYNC DFS0 DFS1 VCOMR VREFR− VREFR+ 1kHz ∼ 216kHz 256fs 128fs 64fs 123dB ±2.4Vpp Available 2005/08 -3- ASAHI KASEI [AK5385B] AK5383 Analog Ground Analog Ground 0.1µ 10µ 0.22µ 3.0 ~ 5.25V Digital 0.1µ 10µ 0.1µ 1 VREFL VREFR 28 2 GNDL GNDR 27 3 VCOML 4 AINL+ AINR+ 25 5 AINL- AINR- 24 6 ZCAL 7 VD AGND 22 8 DGND BGND 21 9 0.1µ 10µ 10µ VCOMR 26 0.22µ 0.1µ 0.22µ 5V Analog VA 23 3.0 ~ 5.25V Digital 10µ 10µ TEST 20 CAL 10 RSTN HPFE 19 1 6 9 11 12 16 18 20 26 28 VREFL VREFR 28 2 AVSS AVSS 27 3 VCOM TEST 26 4 LIN+ RIN+ 25 5 LIN- RIN- 24 6 CKS0 AVDD 23 7 DVDD AVSS 22 8 DVSS BVSS 21 9 OVF DFS1 20 10 PDN HPFE 19 11 SMODE2 DFS 18 11 DIF DFS0 18 12 SMODE1 MCLK 17 12 M/S MCLK 17 13 LRCK FSYNC 16 13 LRCK CKS1 16 14 SCLK SDATA 15 14 BICK SDTO 15 AK5383 Pin # 0.1µ 0.1µ 1 10µ 0.1µ 5V Analog 10µ AK5385B AK5383 VREFL Lch Voltage Reference Output Pin, 3.75V Normally, connected to GNDL with a 10µF electrolytic capacitor and a 0.1µF ceramic capacitor. ZCAL Zero Calibration Control Pin This pin controls the calibration reference signal. CAL Calibration Active Signal Pin SMODE2 Serial Interface Mode Select Pin SMODE1 Serial Interface Mode Select Pin FSYNC Frame Synchronization Signal Pin AK5385B VREFL Lch Voltage Reference Input Pin, AVDD Normally, connected to AVSS with a 10µF electrolytic capacitor and a 0.1µF ceramic capacitor. CKS0 Master Clock Select 0 Pin (Internal Pull-down Pin, typ. 100kΩ) OVF Analog Input Overflow Detect Pin DIF Audio Interface Format Pin M/S Master / Slave Mode Pin CKS1 Master Clock Select 1 Pin (Internal Pull-down Pin, typ.100kΩ) DFS DFS0 Double Speed Sampling Mode Pin Sampling Speed Select 0 Pin TEST DFS1 Test Pin (Internal Pull-down Pin) Sampling Speed Select 1 Pin VCOMR TEST Rch Common Voltage Pin, 2.75V Test Pin (Internal Pull-down Pin, typ. 100kΩ) VREFR VREFR Rch Voltage Reference Input Pin, AVDD Rch Voltage Reference Output Pin, 3.75V Normally, connected to AVSS with a 10µF Normally, connected to GNDL with a 10µF electrolytic capacitor and a 0.1µF ceramic capacitor. electrolytic capacitor and a 0.1µF ceramic capacitor. MS0406-J-00 2005/08 -4- ASAHI KASEI [AK5385B] AK5394A Analog Ground Analog Ground 0.1µ 0.1µ 0.1µ 1 VREFL+ VREFR+ 28 10µ 10µ 1 VREFL 10µ 2 VREFL- VREFR- 27 10µ (short) 2 AVSS AVSS 27 3 VCOML VCOMR 26 3 VCOM TEST 26 4 AINL+ AINR+ 25 4 LIN+ RIN+ 25 5 AINL- AINR- 24 5 LIN- RIN- 24 6 ZCAL 6 CKS0 AVDD 23 7 VD AGND 22 7 DVDD AVSS 22 8 DGND BGND 21 8 DVSS BVSS 21 9 CAL 9 OVF DFS1 20 HPFE 19 0.22µ 3.0 ~ 5.25V Digital 0.1µ 10µ 0.22µ 0.1µ 0.22µ 5V Analog VA 23 3.0 ~ 5.25V Digital Pin # 2 6 9 11 12 16 27 26 28 0.1µ 10µ 10µ DFS1 20 10µ VREFR 28 10 RSTN HPFE 19 10 PDN 11 SMODE2 DFS0 18 11 DIF DFS0 18 12 SMODE1 MCLK 17 12 M/S MCLK 17 13 LRCK FSYNC 16 13 LRCK CKS1 16 14 SCLK SDATA 15 14 BICK SDTO 15 AK5394A 1 0.1µ 10µ (short) 0.1µ 5V Analog 10µ AK5385B AK5394A AK5385B VREFL+ Lch Positive Voltage Reference Output Pin, 3.75V Normally connected to AGND with a large electrolytic capacitor and connected to VREFL− with a 0.22µF ceramic capacitor. VREFL− Lch Negative Voltage Reference Output Pin, 1.25V Normally connected to AGND with a large electrolytic capacitor and connected to VREFL+ with a 0.22µF ceramic capacitor. ZCAL Zero Calibration Control Pin This pin controls the calibration reference signal. CAL Calibration Active Signal Pin SMODE2 Serial Interface Mode Select Pin SMODE1 Serial Interface Mode Select Pin FSYNC Frame Synchronization Signal Pin VREFL Lch Voltage Reference Input Pin, AVDD Normally, connected to AVSS with a 10µF electrolytic capacitor and a 0.1µF ceramic capacitor. VREFR− Rch Negative Voltage Reference Output Pin, 1.25V Normally connected to AGND with a large electrolytic capacitor and connected to VREFR+ with a 0.22µF ceramic capacitor. VCOMR Rch Common Voltage Pin, 2.75V VREFR+ Rch Positive Reference Output Voltage, 3.75V Normally connected to AGND with a large electrolytic capacitor and connected to VREFR− with a 0.22µF ceramic capacitor. MS0406-J-00 AVSS Analog Ground Pin CKS0 Master Clock Select 0 Pin (Internal Pull-down Pin, typ. 100kΩ) OVF Analog Input Overflow Detect Pin DIF Audio Interface Format Pin M/S Master / Slave Mode Pin CKS1 Master Clock Select 1 Pin (Internal Pull-down Pin, typ. 100kΩ) AVSS Analog Ground Pin TEST Test Pin (Internal Pull-down Pin, typ. 100kΩ) VREFR Rch Voltage Reference Input Pin, AVDD Normally, connected to AVSS with a 10µF electrolytic capacitor and a 0.1µF ceramic capacitor. 2005/08 -5- ASAHI KASEI No. Pin Name [AK5385B] I/O 1 VREFL I 2 3 4 5 6 7 8 AVSS VCOM LIN+ LIN− CKS0 DVDD DVSS O I I I - 9 OVF O 10 PDN I 11 DIF I 12 M/S I 13 LRCK I/O 14 BICK I/O 15 SDTO O 16 17 18 CKS1 MCLK DFS0 I I I 19 HPFE I 20 21 22 23 24 25 26 27 DFS1 BVSS AVSS AVDD RIN− RIN+ TEST AVSS I I I I - 28 VREFR I Function Lch Voltage Reference Input Pin, AVDD Normally, connected to AVSS with a 10µF electrolytic capacitor and a 0.1µF ceramic capacitor. Analog Ground Pin Common Voltage Output Pin, AVDD/2 Lch Analog Positive Input Pin Lch Analog Negative Input Pin Master Clock Select 0 Pin (Internal Pull-down Pin, typ. 100kΩ) Digital Power Supply Pin, 3.0 ∼ 5.25V Digital Ground Pin Analog Input Overflow Detect Pin This pin goes to “H” if analog input overflows. Power Down Mode Pin “H”: Power up, “L”: Power down Audio Interface Format Pin “H” : 24bit I2S Compatible, “L” : 24bit MSB justified Master / Slave Mode Pin “H” : Master Mode, “L” : Slave Mode Output Channel Clock Pin “L” Output in Master Mode at Power-down mode. Audio Serial Data Clock Pin “L” Output in Master Mode at Power-down mode. Audio Serial Data Output Pin “L” Output at Power-down mode. Master Clock Select 1 Pin (Internal Pull-down Pin, typ. 100kΩ) Master Clock Input Pin Sampling Speed Select 0 Pin High Pass Filter Enable Pin “H” : Enable, “L” : Disable Sampling Speed Select 1 Pin Substrate Ground Pin Analog Ground Pin Analog Power Supply Pin, 4.75 ∼ 5.25V Rch Analog Negative Input Pin Rch Analog Positive Input Pin Test Pin (Internal Pull-down Pin, typ. 100kΩ) Analog Ground Pin Rch Voltage Reference Input Pin, AVDD Normally, connected to AVSS with a 10µF electrolytic capacitor and a 0.1µF ceramic capacitor. Note: All digital input pins except pull-down pins should not be left floating. MS0406-J-00 2005/08 -6- ASAHI KASEI [AK5385B] Analog Digital AVSS AVSS AVDD LIN+, LIN− RIN+, RIN− VREFL, VREFR OVF TEST DVSS (AVSS, BVSS, DVSS=0V; Note 1) Parameter Power Supplies: Analog Digital |BVSS – DVSS| (Note 2) Input Current, Any Pin Except Supplies Analog Input Voltage (LIN+/−, RIN+/−, VREFL/R pins) Digital Input Voltage (All digital input pins) Ambient Temperature (Power applied) 28SOP Package 28VSOP Package Storage Temperature Symbol AVDD DVDD ∆GND IIN VINA VIND Ta Ta Tstg min −0.3 −0.3 −0.3 −0.3 −10 −40 −65 min 4.75 3.0 3.0 typ 5.0 3.3 - max 6.0 6.0 0.3 ±10 AVDD+0.3 DVDD+0.3 70 85 150 Units V V V mA V V °C °C °C max 5.25 AVDD AVDD Units V V V Note 1. Note 2. AVSS, BVSS, DVSS : (AVSS, BVSS, DVSS=0V; Note 1) Parameter Power Supplies Analog (Note 3) Digital Voltage Reference (VREFL/R pins) Note 1. Note 3. AVDD Symbol AVDD DVDD VREF DVDD : MS0406-J-00 2005/08 -7- ASAHI KASEI [AK5385B] (Ta=25°C; AVDD=5.0V, DVDD=3.3V; AVSS=BVSS=DVSS=0V; VREFL=VREFR=AVDD; fs=48kHz, 96kHz, 192kHz; BICK=64fs; Signal Frequency=1kHz; 24bit Data; Measurement frequency=20Hz ∼ 20kHz at fs=48kHz, 40Hz ∼ 40kHz at fs=96kHz, 40Hz ∼ 40kHz at fs=192kHz; unless otherwise specified) Parameter min typ max Units Analog Input Characteristics: Resolution 24 Bits Input Voltage (Note 4) ±2.7 ±2.9 ±3.1 Vpp −1dBFS (Note 5) 103 dB S/(N+D) fs=48kHz −1dBFS 92 100 dB BW=20kHz −20dBFS 91 dB −60dBFS 51 dB −1dBFS 90 98 dB fs=96kHz −20dBFS 86 dB BW=40kHz −60dBFS 46 dB −1dBFS 98 dB fs=192kHz −20dBFS 86 dB BW=40kHz −60dBFS 46 dB Dynamic Range (−60dBFS with A-weighted) 107 114 dB S/N (A-weighted) 107 114 dB Input Resistance 9 13 kΩ Interchannel Isolation 100 120 dB Interchannel Gain Mismatch 0.1 0.5 dB Power Supply Rejection (Note 6) 50 dB Power Supplies Power Supply Current Normal Operation (PDN pin = “H”) AVDD DVDD (fs=48kHz) DVDD (fs=96kHz) DVDD (fs=192kHz) Power down mode (PDN pin = “L”) AVDD+DVDD Note 4. (LIN+)−(LIN−) (RIN+)−(RIN−) Vin = 0.58 × VREF (Vpp) Note 5. VREFL pin AVSS VREFR pin Note 6. VREFL, VREFR pin Note 7. DVDD 30 10 17 20 45 15 25 30 mA mA mA mA 10 100 µA (Note 7) VREFL, VREFR AVSS AVDD, DVDD DVSS MS0406-J-00 100µF 1kHz, 20mVpp 2005/08 -8- ASAHI KASEI [AK5385B] (fs=48kHz) (Ta=25°C; AVDD=4.75 ∼ 5.25V; DVDD=3.0 ∼ 5.25V; DFS1 pin = “L”, DFS0 pin = “L”) Parameter Symbol min typ ADC Digital Filter (Decimation LPF): Passband (Note 8) −0.005dB PB 0 −0.02dB 22.038 −0.06dB 22.2 −6.0dB 24.0 Stopband SB 26.5 Passband Ripple PR Stopband Attenuation SA 100 Group Delay (Note 9) GD 43.2 Group Delay Distortion ∆GD 0 ADC Digital Filter (HPF): Frequency Response (Note 8) −3dB FR 1.0 −0.1dB 6.5 (fs=96kHz) (Ta=25°C; AVDD=4.75 ∼ 5.25V; DVDD=3.0 ∼ 5.25V; DFS1 pin = “L”, DFS0 pin = “H”) Parameter Symbol min typ ADC Digital Filter (Decimation LPF): Passband (Note 8) −0.005dB PB 0 −0.02dB 44.081 −0.06dB 44.5 −6.0dB 48.0 Stopband SB 53.0 Passband Ripple PR Stopband Attenuation SA 100 Group Delay (Note 9) GD 43.1 Group Delay Distortion ∆GD 0 ADC Digital Filter (HPF): Frequency Response (Note 8) −3dB FR 2.0 −0.1dB 13.0 Note 8. fs ( ) Note 9. max Units 21.5 - kHz kHz kHz kHz kHz dB dB 1/fs µs ±0.005 Hz Hz max Units 43.0 - kHz kHz kHz kHz kHz dB dB 1/fs µs ±0.005 Hz Hz 1kHz 24 ADC MS0406-J-00 2005/08 -9- ASAHI KASEI [AK5385B] (fs=192kHz) (Ta=25°C; AVDD=4.75 ∼ 5.25V; DVDD=3.0 ∼ 5.25V; DFS1 pin = “H”, DFS0 pin = “L”) Parameter Symbol min typ ADC Digital Filter (Decimation LPF): Passband (Note 8) −0.005dB PB 0 −0.02dB 88.183 −0.06dB 89.0 −6.0dB 96.0 Stopband SB 106.0 Passband Ripple PR Stopband Attenuation SA 100 Group Delay (Note 9) GD 38.2 Group Delay Distortion ∆GD 0 ADC Digital Filter (HPF): Frequency Response (Note 8) −3dB FR 4.0 −0.1dB 26.0 Note 8. fs ( ) max Units 86.0 - kHz kHz kHz kHz kHz dB dB 1/fs µs ±0.005 Hz Hz 1kHz Note 9. 24 ADC DC (Ta=25°C; AVDD=4.75 ∼ 5.25V; DVDD=3.0 ∼ 5.25V) Parameter Symbol High-Level Input Voltage VIH Low-Level Input Voltage VIL High-Level Output Voltage (Iout=−400µA) VOH Low-Level Output Voltage (Iout=400µA) VOL Input Leakage Current (Note 10) Iin Note 10. CKS1-0 pin, TEST pin min 70%DVDD DVDD−0.4 - typ - max 30%DVDD 0.4 ±10 Units V V V V µA (typ. 100kΩ) MS0406-J-00 2005/08 - 10 - ASAHI KASEI [AK5385B] (Ta=25°C; AVDD=4.75 ∼ 5.25V; DVDD=3.0 ∼ 5.25V; CL=20pF) Parameter Symbol Master Clock Timing Frequency fCLK Pulse Width Low tCLKL Pulse Width High tCLKH LRCK Frequency Normal Speed Mode Double Speed Mode Quad Speed Mode Duty Cycle fsn fsd fsq Slave mode Master mode Note 11. Note 12. AK5385B Note 13. PDN pin tBCK tBCK tBCK tBCKL tBCKH tLRB tBLR tLRS tBSD fBCK dBCK tMBLR tBSD tPD tPDV (Note 12) (Note 13) LRCK PDN pin = “L” BICK max Units 2.048 14.5 14.5 27.648 MHz ns ns 8 54 108 45 54 108 216 55 kHz kHz kHz % % 20 20 ns ns ns ns ns ns ns ns ns 20 20 Hz % ns ns 1/128fsn 1/64fsd 1/64fsq 33 33 20 20 64fs 50 −20 −20 150 516 ns 1/fs “↑” LRCK 1LRCK typ 50 Audio Interface Timing Slave mode BICK Period Normal Speed Mode Double Speed Mode Quad Speed Mode BICK Pulse Width Low Pulse Width High LRCK Edge to BICK “↑” (Note 11) BICK “↑” to LRCK Edge (Note 11) LRCK to SDTO (MSB) (Except I2S mode) BICK “↓” to SDTO Master mode BICK Frequency BICK Duty BICK “↓” to LRCK BICK “↓” to SDTO Reset Timing PDN Pulse Width PDN “↑” to SDTO valid min “↑” (1/fs) MS0406-J-00 2005/08 - 11 - ASAHI KASEI [AK5385B] 1/fCLK VIH MCLK VIL tCLKH tCLKL 1/fs VIH LRCK VIL tBCK VIH BICK VIL tBCKH tBCKL Clock Timing VIH LRCK VIL tBLR tLRB VIH BICK VIL tLRS tBSD SDTO 50%DVDD Audio Interface Timing (Slave mode) MS0406-J-00 2005/08 - 12 - ASAHI KASEI [AK5385B] LRCK 50%DVDD tMBLR dBCK BICK 50%DVDD tBSD SDTO 50%DVDD Audio Interface Timing (Master mode) VIH PDN VIL tPDV SDTO 50%DVDD tPD PDN VIL Power Down & Reset Timing MS0406-J-00 2005/08 - 13 - ASAHI KASEI [AK5385B] AK5385B MCLK, BICK, LRCK Table 1 AK5385B DFS1-0 pin (Table 3) AK5385B MCLK LRCK AK5385B CKS1-0 pin (Table 2) LRCK (PDN pin = “H”) (MCLK, BICK, LRCK) (PDN pin = “L”) (MCLK) fs 32kHz 44.1kHz 48kHz 96kHz 192kHz MCLK 128fs 256fs 384fs N/A 8.192MHz 12.288MHz N/A 11.2896MHz 16.9344MHz N/A 12.288MHz 18.432MHz N/A 24.576MHz N/A 24.576MHz N/A N/A Table 1. System Clock Example CKS1 pin L L H H DFS1 pin L L H H [ 512fs 16.384MHz 22.5792MHz 24.576MHz N/A N/A CKS0 pin MCLK Frequency L 256fs H 128fs L 512fs H 384fs Table 2. MCLK Frequency DFS0 pin LRCK Frequency L 8kHz ≤ fs ≤ 54kHz H 54kHz < fs ≤ 108kHz L 108kHz < fs ≤ 216kHz H N/A Table 3. Sampling Speed ] [ / ] 12.288MHz(@fs=48kHz) / [ PDN pin = “L” ] MCLK 24.576MHz MCLK 24.576MHz(@fs=96kHz) MCLK PDN pin = “L” CKS1-0, DFS1-0 pin fs 48kHz MS0406-J-00 96kHz 2005/08 - 14 - ASAHI KASEI [AK5385B] 2 DIF pin (Table 4) SDTO BICK MSB LRCK LRCK Mode 0 1 DIF pin L H BICK BICK fs SDTO LRCK 24bit, MSB justified H/L 24bit, I2S Compatible L/H Table 4. Audio Interface Format 2’s BICK ≥ 48fs ≥ 48fs 64fs Figure Figure 1 Figure 2 LRCK 0 1 2 20 21 22 23 24 31 0 1 2 20 21 22 23 24 31 0 1 BICK(64fs) SDTO(o) 23 22 4 3 2 1 0 23 22 4 3 2 1 0 23 23:MSB, 0:LSB Lch Data Rch Data Figure 1. Mode 0 Timing LRCK 0 1 2 3 21 22 23 24 25 0 1 2 21 22 23 24 25 0 1 BICK(64fs) SDTO(o) 23 22 4 3 2 1 0 23 22 4 3 2 1 0 23:MSB, 0:LSB Lch Data Rch Data Figure 2. Mode 1 Timing M/S pin AK5385B MCLK MCLK, BICK, LRCK AK5385B AK5385B M/S pin L H “H” “L” BICK, LRCK Mode BICK, LRCK BICK = Input Slave Mode LRCK = Input BICK = Output Master Mode LRCK = Output Table 5. Master mode/Slave mode MS0406-J-00 2005/08 - 15 - ASAHI KASEI [AK5385B] HPF ADC DC HPF HPF fc fs=48kHz 1.0Hz fs HPFE pin HPF ON/OFF HPF ON/OFF DC (PDN pin = “L”) AK5385B (−0.3dBFS ) OVF pin “H” (GD = 43.2/fs = 0.9ms@fs=48kHz) 516/fs(=10.75ms@fs=48kHz) OVF pin “L” Lch Rch OVF ADC (PDN pin = “L” → “H”) AK5385B PDN pin “L” VCOM AVSS SDTO “0” 516 × LRCK ADC 2’s ADC ) PDN pin MCLK ( “L” PDN pin LRCK ( “H” Mode 1 ) (1) PDN Internal State Normal Operation Power-down Initialize Normal Operation GD (2) GD A/D In (Analog) A/D Out (Digital) Clock In “0”data Idle Noise (4) MCLK,LRCK,BICK Notes: (1) (2) (3) (4) (3) “0”data Idle Noise 517/fs 516/fs (GD) ADC “0” (MCLK, BICK, LRCK) Figure 3. Power-down/up sequence example MS0406-J-00 2005/08 - 16 - ASAHI KASEI [AK5385B] Figure 4 (AKD5385B) 0.1µ 0.1µ VREFR 28 1 VREFL 10µ 10µ 0.22µ 2 AVSS AVSS 27 3 VCOM TEST 26 4 LIN+ RIN+ 25 5 LIN- RIN- 24 0.1µ 6 CKS0 0.1µ Digital Supply 3.0 ~ 5.25V 7 DVDD 10µ Reset : - AK5385B - Analog Supply 4.75 ~ 5.25V AVDD 23 AK5385B 10µ AVSS 22 8 DVSS BVSS 21 9 OVF DFS1 20 10 PDN HPFE 19 11 DIF DFS0 18 12 M/S MCLK 17 13 LRCK CKS1 16 14 BICK SDTO 15 DSP and uP AVSS, BVSS, DVSS (CKS0, CKS1, TEST pin) Figure 4. Typical Connection Diagram Digital Ground Analog Ground System Controller 1 VREFL VREFR 28 2 AVSS AVSS 27 3 VCOM TEST 26 4 LIN+ RIN+ 25 5 LIN- RIN- 24 6 CKS0 AVDD 23 7 DVDD AVSS 22 8 DVSS BVSS 21 9 OVF DFS1 20 10 PDN HPFE 19 11 DIF DFS0 18 12 M/S MCLK 17 13 LRCK CKS1 16 14 BICK SDTO 15 AK5385B Figure 5.Ground Layout : - AVSS, BVSS, DVSS MS0406-J-00 2005/08 - 17 - ASAHI KASEI [AK5385B] 1. AVDD, DVDD AVSS, BVSS, DVSS PC 2. A/D VREFL/R pin AVSS pin VREFL/R pin VREFL/R pin AVSS pin 0.1µF 10µF AVSS VREFL/R pin VCOM 0.22µF AVSS VCOM pin VCOM pin 3. ±2.9Vpp (typ) AK5385B 2’s complement LIN−(RIN−) DC ) AK5385B LIN+(RIN+) AVDD (ADC HPF 128fs (6.144MHz@fs=48kHz, Normal Speed Mode) 128fs 128fs AK5385B AVSS−0.3V AVSS DC +5V 10mA RC (LIN+/−, RIN+/−) 128fs AVDD+0.3V IC ±15V MS0406-J-00 2005/08 - 18 - ASAHI KASEI [AK5385B] 4. −10dB Figure 6 10nF LPF 22Ω LPF 370kHz LIN+/−(RIN+/−) 360kHz 910 4.7k 4.7k 470p VP+ 47µ Analog In 3k 22 2.9Vpp 4 LIN+ VP9.56Vpp Bias NJM5532 910 VA 10k 47µ 3k AK5385B 10n 470p 22 5 LIN- 0.1µ 10µ VA = 5V VP+ = 15V VP- = -15V Bias 10k Bias 2.9Vpp Figure 6.Input Buffer example 2(1st order HPF: fc=0.66Hz, Table 6; 1st order LPF: fc=590kHz, Figure 7 AK5385B gain=−14dB, Table 7) Figure 7 JP1, 2 JP1, 2 +/−14.7Vpp 14.7Vpp JP1 22µ Vin+ 91 1k 2.9Vpp 4 LIN+ BNC VA XLR 4.7k 0.1µ 10k NJM5534 4.7k 1.5n Bias 10µ 4.7k AK5385B 4.7k 10k 91 JP2 NJM5534 100 5 LINVin14.7Vpp 22µ 1k 2.9Vpp NJM5534 Figure 7.Input Buffer example fin 1Hz 10Hz Frequency Response −1.56dB −0.02dB Table 6. Frequency Response of HPF fin 20kHz 40kHz Frequency Response −0.005dB −0.02dB Table 7. Frequency Response of LPF MS0406-J-00 6.144MHz −15.6dB 2005/08 - 19 - ASAHI KASEI [AK5385B] 5. Figure 8 VREFL/R pin [ ] 0.1µF S/(N+D) AVDD = 5.0V, DVDD = 3.3V; AVSS = BVSS = DVSS = 0V fs = 48kHz = 10Hz ∼ 20kHz Ta = 25°C Audio Precision System Two Cascade Figure 8. S/(N+D) vs. VREF Cap 6. AK5385B MCLK AK5385B LRCK AK5385B AK5385B AD MCLK MS0406-J-00 2005/08 - 20 - ASAHI KASEI [AK5385B] (AK5385BVF) 28pin VSOP (Unit: mm ) *9.8±0.2 1.25±0.2 0.675 28 A 7.6±0.2 *5.6±0.2 15 14 1 0.65 0.22±0.1 +0.1 0.15-0.05 0.1±0.1 0.5±0.2 Detail A Seating Plane | 0.10 NOTE: Dimension "*" does not include mold flash. 0-10° MS0406-J-00 2005/08 - 21 - ASAHI KASEI [AK5385B] (AK5385BVS) 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° MS0406-J-00 2005/08 - 22 - ASAHI KASEI [AK5385B] (AK5385BVF) AKM AK5385BVF XXXBYYYYC XXXBYYYYC Date code identifier XXXB : Lot number (X : Digit number, B : Alpha character) YYYYC : Assembly date (Y : Digit number, C : Alpha character) MS0406-J-00 2005/08 - 23 - ASAHI KASEI [AK5385B] (AK5385BVS) AKM AK5385BVS XXXBYYYYC XXXBYYYYC Date code identifier XXXB : Lot number (X : Digit number, B : Alpha character) YYYYC : Assembly date (Y : Digit number, C : Alpha character) Date (YY/MM/DD) 05/08/10 Revision 00 Reason Page Contents • • • • • • MS0406-J-00 2005/08 - 24 -