ak4561 AKM Semiconductor, Inc., ak4561 Datasheet
ak4561
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ak4561 Summary of contents
Page 1
... Level Control) circuit, and output circuits include LINEOUT buffer, Analog Volume and Headphone-Amp. As Multi-Power-Supply-System can be set a suitable power supply voltage in each block, the AK4561 is compatible with high performance and low power dissipation. The package is a 64pin TQFP, therefore, a new system can be a smaller board area than a current system is composed chips. ...
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... Digital ALC S9 S12 PM3 DAC S11 PM6 Audio I/F Controller Clock Divider TEST BCLK LRCK MCLK SDTI SDTO Figure 1. AK4561 Block Diagram - 2 - [AK4561] INT_MIC_R EXT_MIC_R MPWR Pre Amp EQ Amp EQ EXT S0 Inv Amp S1 PM2 S1 Delay ...
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... HPF_P1_L 4 HPF_P2_L 5 HPF_O_L 6 MIC_IN_L 7 HVCM 8 HPL 9 10 HPR ROUT2 11 OPGR 12 LOUT2 13 14 OPGL BEEP 15 MOUT 16 Rev. 0.9 AKM CONFIDENTIAL 64pin TQFP (0.4mm pitch) Top View - 3 - [AK4561] EQ_N_R 48 EQ_O_R 47 46 HPF_P1_R 45 HPF_P2_R 44 HPF_O_R 43 MIC_IN_R 42 HVDD 41 LOUT1 40 LIN 39 ROUT1 38 RIN 37 VCOM_H 36 MUTE CDTI ...
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... Internal MIC Lch Input Pin 61 EXT_MIC_L I External MIC Lch Input Pin 62 MIC_B I MIC-Amp Bias Pin 63 PRE_N_L I Lch Pre-Amp Negative Input Pin 64 PRE_O_L O Lch Pre-Amp Output Pin Note: All input pins should not be left floating. Rev. 0.9 AKM CONFIDENTIAL PIN/FUNCTION Function - 4 - [AK4561] 2000/09 ...
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... Rec Mute Pin, “L”: Normal Operation, “H”: ADC Output Data Mute 36 MUTE I Mute Pin, “L”: Normal Operation, “H”: Mute 59 VTH I Comparator Threshold Voltage Input Pin Note: All input pins should not be left floating. Rev. 0.9 AKM CONFIDENTIAL - 5 - [AK4561] 2000/09 ...
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... AKM assumes no responsibility for the usage beyond the conditions in this datasheet. Rev. 0.9 AKM CONFIDENTIAL ABSOLUTE MAXIMUM RATING Symbol VA HVDD MIC VD VT GND1 GND2 IIN VINA1 VINA2 VIND1 VIND2 Ta Tstg Symbol min VA 2.6 HVDD 3.8 MIC 2.6 VD 2 [AK4561] min max Units -0.3 6.0 V -0.3 6.0 V -0.3 6.0 V -0.3 6.0 V -0 -0.3 VA+0.3 V -0.3 MIC+0 ...
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... Note 12. Pre-Amp (Gain: +16dB) Inverter-Amp (Gain: +0dB) HPF-Amp (Gain: 0dB, HPF OFF) Rev. 0.9 AKM CONFIDENTIAL ANALOG CHARACTERISTICS 20kHz; unless otherwise specified) min (Note 10) 30% , Gain=24dB: 600 EQ-Amp (Input/Feedback resistance [AK4561] typ max Units 100 k 1.5 k -3.2 dBV -10 dBV + ...
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... Note 18. Input resistance of OPGA changes from 63k to 158k by setting GAIN value, typically. Rev. 0.9 AKM CONFIDENTIAL min 5.6 117 LINE 0.1 +0dB -36dB 0.1 -36dB -44dB 0.1 -44dB -56dB -56dB -68dB - - -68dB -80dB 10 44 0.1 0 [AK4561] typ max Units -0.5 dBV 184 260 k 0 ...
Page 9
... Note 24. In case of power-down, digital input pins of MCLK, BCLK, LRCK and SDTI are held “VD” or “DGND”. Digital input pins of CCLK, REC_MUTE, CCLK, is held “DGND”. Rev. 0.9 AKM CONFIDENTIAL min = (Note 19 CDTI and MUTE are held “VT” or “DGND” [AK4561] typ max Units -5.5 dBV 40 dB -86 dBV -11 ...
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... HPF. For DAC, this time is from setting the 16 bit data of both channels on input register to the output of analog signal. Rev. 0.9 AKM CONFIDENTIAL FILTER CHARACTERISTICS Symbol min 29 26 [AK4561] typ max Units 18.9 kHz 21.8 - kHz 23.0 - kHz kHz dB 0.1 dB 17 21.7 kHz 24.0 - kHz ...
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... Input Leakage Current Note 27. MCLK, BCLK, LRCK and SDTI pins Note 28. SDTO and COMP pins Note 29 CCLK, CDTI REC_MUTE and MUTE pins Rev. 0.9 AKM CONFIDENTIAL DC CHARACTERISTICS 3.3V) Symbol min VIH 1.5 VIL - VOH1 VD-0.2 VOL1 - VOH2 75%VT VOL2 - Iin - - 11 - [AK4561] typ max Units - - 25% ...
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... Units 12.288 12.8 MHz ns ns 18.432 19.2 MHz kHz ...
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... CLKH tCLKL 1/fs t BLK t t BLKH BLKL Figure 2. Clock Timing t t BLR LRB t LRM D15(MSB SDS SDH Figure 3. Audio Data Input/Output Timing tCSS tCCKL tCCKH tCDS tCDH op0 op1 op2 - 13 - [AK4561] 1.5V 0.6V 1.5V 0.6V 1.5V 0.6V 1.5V 0.6V 1.5V 0.6V t BSD D14 50%VD 1.5V 0.6V VIH2 VIL2 VIH2 VIL2 VIH2 A0 VIL2 2000/09 ...
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... ASAHI KASEI CS CCLK CDTI D4 PD SDTO Rev. 0.9 AKM CONFIDENTIAL Figure 5. WRITE Data Input Timing PDW PDV VIL2 Figure 6. Reset Timing - 14 - [AK4561] tCSW VIH2 VIL2 tCSH VIH2 VIL2 VIH2 VIL2 50%VD 2000/09 ...
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... Mode”.) n System Reset AK4561 should be reset once by bringing PD pin “L” upon power-up. After the system reset operation, the all internal AK4561 registers become initial value. Initializing cycle is 8224/fs=171.3ms@fs=48kHz. During initializing cycle, the ADC digital data outputs of both channels are forced to a 2's compliment, “ ...
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... Don’t Care Figure 7. Audio Data Timing Address Control Data Figure 8. Control Data Timing - 16 - [AK4561 ...
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... ZELM LMAT1 LMAT0 FDATT 0 REF6 REF5 REF4 COMP 0 IPGA6 IPGA5 IPGA4 OPGA4 DLY6 DLY5 DLY4 Table 1. AK4561 Register Map +24dB; 4dB step S6 S5 Gain 0 0 +12dB 0 1 +16dB 1 0 +20dB 1 ...
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... S7: When S7 bit changes from “1” to “0”, the pop noise can not occur. When S7 bit changes from “0” to “1” and S12-8 bits are changed, the pop noise occurs. Rev. 0.9 AKM CONFIDENTIAL S12 S11 [AK4561 S10 2000/09 ...
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... These bits can be partially powered-down by ON/OFF (“1” / “0”). When PD pin goes “L”, all the circuit in AK4561 can be powered-down regardless of these bits in the address. When bit in this address goes all “0”, all the circuits in AK4561 can be also powered- down. But contents of registers are kept. ...
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... AKM CONFIDENTIAL ALC ADC D1:PM1 D2:PM2 D3:PM3 LINE VCOM OPGA OUT (*1) D4:PM4 D7:PM7 MOUT (*1: OPGA is enabled by controlling BEEP PM6 or PM5 bit.) D6:PM6 Figure 9. Power Management Control ALC ADC VA VA LINE VCOM OPGA OUT VA HVDD MOUT BEEP [AK4561] DAC DAC VA VA 2000/09 ...
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... Mode Control RESET DEM1-0: Select De-emphasis Frequency The AK4561 includes the digital de-emphasis filter (tc = 50/ IIR filter. The filter corresponds to three sampling frequencies (32kHz, 44.1kHz and 48kHz). The de-emphasis filter selected DEM0 and DEM1 registers are enabled for input audio data. ...
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... Table 8. Zero Crossing Timeout FDTM1 FDTM0 Period 0 0 16.0ms 0 1 32.0ms 1 0 64.0ms 1 1 128.0ms Table 9. FADEIN/OUT Period - 22 - [AK4561 WTM1 WTM0 LTM1 LTM0 32kHz RESET 125 s 250 s RESET RESET RESET 2000/09 ...
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... ADC Input RATT GAIN STEP RESET FDATT ATT STEP RESET LMAT1 LMAT0 ATT STEP Table 13. ALC Limiter ATT Step Setting - 23 - [AK4561 RATT LMTH RESET -7.0dB -5.0dB RESET 2000/09 ...
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... Table 14. Setting Reference Value at ALC Recovery Operation Rev. 0.9 AKM CONFIDENTIAL REF6 REF5 REF4 GAIN(dB) STEP MIC LINE +26.0 +0.0 +25.5 -0.5 +25.0 -1.0 +0.0 -26.0 0.5dB -0.5 -26.5 -9.5 -35.5 -10.0 -36.0 -11.0 -37.0 -12.0 -38.0 1dB -17.0 -43.0 -18.0 -44.0 -20.0 -46.0 -22.0 -48.0 2dB -40.0 -66.0 -42.0 -68.0 -46.0 -72.0 -50.0 -76.0 4dB -54.0 -80.0 MUTE MUTE - 24 - [AK4561 REF3 REF2 REF1 REF0 LEVEL 2000/09 ...
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... ON. COMP pin generates the analog signal compared from HPF-Amp. FR: Select ALC operation Mode 0: The ALC operation corresponds to impulse noise. (RESET) 1: The ALC operation is the same as AK4516A. Rev. 0.9 AKM CONFIDENTIAL COMP [AK4561 FDIN ALC FDOUT 2000/09 ...
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... Rev. 0.9 AKM CONFIDENTIAL IPGA6 IPGA5 IPGA4 GAIN(dB) STEP MIC LINE +26.0 +0.0 +25.5 -0.5 +25.0 -1.0 +0.0 -26.0 0.5dB -0.5 -26.5 -9.5 -35.5 -10.0 -36.0 -11.0 -37.0 -12.0 -38.0 1dB -17.0 -43.0 -18.0 -44.0 -20.0 -46.0 -22.0 -48.0 2dB -40.0 -66.0 -42.0 -68.0 -46.0 -72.0 -50.0 -76.0 4dB -54.0 -80.0 MUTE MUTE Table 15. Input Gain Setting - 26 - [AK4561 IPGA3 IPGA2 IPGA1 IPGA0 LEVEL 2000/09 ...
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... Rev. 0.9 AKM CONFIDENTIAL OPGA4 GAIN(dB) STEP LEVEL + 1dB -15 -16 -18 -20 2dB -36 -38 -42 -46 4dB -50 Mute Table 16. ATT value of Analog Volume - 27 - [AK4561 OPGA3 OPGA2 OPGA1 OPGA0 2000/09 ...
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... Enable. Digital delay circuit is operated by a value set by DLY6-0 and COE3-0 bits. Rev. 0.9 AKM CONFIDENTIAL DLY6 DLY5 DLY4 Tap GAIN(dB) 90 90/64fs 89 89/64fs 88 88/64fs 87 87/64fs 86 86/64fs 5 5/64fs 4 4/64fs 3 3/64fs 2 2/64fs 1 1/64fs - 28 - [AK4561 DLY3 DLY2 DLY1 DLY0 2000/09 ...
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... COE3 COE2 COE1 COE0 coefficient 0.9375 0.875 0.8125 0.75 0.6875 0.625 0.5625 0.5 0.4375 0.375 0.3125 0.25 0.1875 0.125 0.0625 0 2000/09 ...
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... Figure 12. Internal path at selecting External MIC Mode (HPF OFF) Rev. 0.9 AKM CONFIDENTIAL FUNCTION DETAIL Amp EXT S0 Pre Amp - + Inv Amp Amp EXT S0 Pre Amp - + Inv Amp - 30 - [AK4561 ALC + - HPF From Rch To Rch S1 To ALC + - HPF From Rch To Rch 2000/09 ...
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... When EQ bit is “0”, these amplifiers are OFF then PM0 bit is not relative. 3. HPF-Amp To cancel wind-noise, AK4561 has the HPF-Amp which is non-inverting amplifier, 2 0dB. The HPF-Amp can be ON/OFF by controlling the internal registers. In case of OFF, HPF-Amp becomes a unity gain buffer. This HPF-Amp can use when Internal MIC Mode is selected. In case of External MIC Mode, the control of HPF-Amp is invalid and becomes a unity gain buffer ...
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... Analog Volume (OPGA) The AK4561 includes the 0dB -50dB & MUTE analog volume with zero crossing detection for headphone and speaker. Zero crossing is detected on L/R channels independently. Zero crossing timeout (To) is 16ms. These periods are value at fs=32kHz (FS bit = “0”) or fs=48kHz (FS bit = “1”). ...
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... VCOM voltage by the time constants of an internal resistor (R1; typ.200k ) and an external capacitor (C1). (Refer to Figure 18) Rev. 0.9 AKM CONFIDENTIAL S11 S11 S11 C1 S11 - + MOUT R1 PM6 Figure 16. Normal Operation S11 S11 S11 S11 - + MOUT R1 PM6 Figure 17. Power-Save-Mode S11 S11 S11 S11 - + MOUT R1 PM6 Figure 18. Power-Down-Mode - 33 - [AK4561 2000/09 ...
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... Monaural output is muted to the input signal of analog volume (OPGA), but is not muted to the input signal of BEEP pin. When MUTE pin is “L”, the AK4561 is normal operation. When MUTE pin changes from “L” to “H”, pop noise does not occur from output signals of headphone and monaural amplifiers, but the pop noise occurs from LINEOUT. When MUTE pin changes from “ ...
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... Hi-z to decrease a pop noise. And when Power OFF, the pop noise can be decreased by controlling via Power- Save-Mode. Rev. 0.9 AKM CONFIDENTIAL LOUT LOUT1/ROUT1 LOUT LOUT LOUTP LOUT - + R1 Figure 19. LINEOUT Normal Operation LOUT LOUT1/ROUT1 LOUT LOUT LOUTP LOUT - + R1 Figure 20. LINEOUT Power-Save-Mode LOUT LOUT1/ROUT1 LOUT LOUT LOUTP LOUT - + R1 Figure 21. LINEOUT Power-Down-Mode - 35 - [AK4561 2000/09 ...
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... Power-Save-Mode. After that, S8 bit should be changed into “0” before headphone amplifier is done by the normal operation. Figure 22. Headphone-Amps Normal Operation Figure 23. Headphone-Amps Power-Save-Mode Figure 24. Headphone-Amps Power-Down-Mode Rev. 0.9 AKM CONFIDENTIAL S8 HPL/HPR - + - + HVCM PM5 S8 HPL/HPR - + - + HVCM PM5 S8 HPL/HPR - + - + HVCM PM5 - 36 - [AK4561] 2000/09 ...
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... MIC_B pin and MVSS pin. VTH pin can be supplied until minimum (MVCM – MVDD x 0.35). For example, the input voltage of VTH pin is 0.4V when MVDD is 2.8V. The threshold of positive side is converted by internal inverting amplifier. Rev. 0.9 AKM CONFIDENTIAL COE3 - 0 bit L2 Delay ATT Delay ATT R2 Figure 25. Digital Delay Circuit - 37 - [AK4561] 2000/09 ...
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... Limiter detection level(LMTH) (1) 2dB Recovery waiting counter reset level (LMTH) ) Figure 26. Disable ALC zero crossing detection (ZELM = “0”) (1). When the signal is input between 2dB, the AK4561 does not operate the ALC limiter and recovery. Rev. 0.9 AKM CONFIDENTIAL Limiter update period (LTM1- [AK4561] ...
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... Zero crossing timeout is set by ZTM1-0 bits. But the first zero crossing timeout cycle after starting the limiter operation may be the short cycle by the state of the last zero crossing counter. (For example, in case of doing the limiter operation during the recovery operation) Rev. 0.9 AKM CONFIDENTIAL (1) (2) (2) (1) (3) Zero crossing timeout (ZTM1- [AK4561] ATT level (LMAT1-0) ATT level (LMAT1-0) 2000/09 ...
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... AKM CONFIDENTIAL Input Signal < (Limiter detection level)” during the ALC recovery (1) WTM counter starts ZTM counter starts (2) WTM counter starts ZTM counter starts WTM counter starts - 40 - [AK4561] Limiter detection level (LMTH) Recovery waiting counter reset level (LMTH) Zero crossing detect (2) 2000/09 ...
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... ZTM1-0 bit, the ALC recovery is operated by the zero crossing timeout period of ZTM1-0 bit. Therefore, in this case the auto recovery operation period is not constant. Rev. 0.9 AKM CONFIDENTIAL - 41 - [AK4561] Gain Level (RATT) 2000/09 ...
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... WR(IPGA=60H): If the written value to control register is the same as the current value, the written value is ignored, therefore the IPGA value keeps 40H (the value after finishing the ALC operation). Rev. 0.9 AKM CONFIDENTIAL WR(ALC= “0”) WR(IPGA=60H) ALC operation 60H 60H --> 40H 60H ( [AK4561] M anual M ode 40H (3) (2) 2000/09 ...
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... If the written value is the same as the current value, the writing value is ignored. Rev. 0.9 AKM CONFIDENTIAL WR(IPGA=00H) WR(ALC = “0”) ALC operation 60H 00H 60H --> 40H 60H (1) ( [AK4561] WR(IPGA=60H) M anual M ode 60H 60H (3) (4) 2000/09 ...
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... Rev. 0.9 AKM CONFIDENTIAL Manual-Mode WR (ZTM1-0, WTM1-0, LTM1-0) WR (LMAT1-0, RATT, LMTH) WR (REF6-0) * The value of IPGA should be the WR (IPGA6-0) same or smaller than REF’s. WR (ALC= “1”) ALC Operation No Finish ALC mode? Yes WR (ALC= “0”) RD (STAT) No STAT = “1”? Yes - 44 - [AK4561] 2000/09 ...
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... WR (ALC = FDIN = “1”): The FADEIN operation starts. The IPGA changes from the MUTE state to the FADEIN operation. (4) The FADEIN operation is done until the limiter detection level (LMTH) or the reference level (REF6-0). After completing the FADEIN operation, the AK4561 becomes the ALC operation. (5) FADEIN time can be set by FDTM1-0 and FDATT bits E.g. FDTM1-0 = 32ms, FDATT = 1step (96 x FDTM1-0) / FDATT = 96 x 32ms / ...
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... WR (ALC = “1”, FDOUT = “0”): The ALC operation restarts. But the ALC bit should not write until completing zero crossing operation of IPGA. (8) Release a mute function of analog and digital outputs externally. Rev. 0.9 AKM CONFIDENTIAL (2) (1) (3) (4) (5) ( [AK4561] (7) (8) 2000/09 ...
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... ASAHI KASEI 0.4 0.5 ± 0.2 n Package & Lead frame material Package molding compound: Epoxy Lead frame material: Lead frame surface treatment: Solder plate Rev. 0.9 AKM CONFIDENTIAL PACKAGE 9.0 ± 0.2 7 0.07 0.18 ± 0. [AK4561 0° ~ 10° 2000/09 ...
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... ASAHI KASEI 1 - Asashi kasei Logo - Marketing Code: AK4561VQ - Date Code: XXXXXXX (7 digits) First 4 digits: weekly code, Remains 3 digits: code management in office - Country of Origin: JAPAN These products and their specifications are subject to change without notice. Before considering any use or application, consult the Asahi Kasei Microsystems Co., Ltd. (AKM) sales office or authorized distributor concerning their current status ...