AK4527BVQ AKM Semiconductor, Inc., AK4527BVQ Datasheet
AK4527BVQ
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AK4527BVQ Summary of contents
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ASAHI KASEI High Performance Multi-channel Audio CODEC The AK4527B is a single chip CODEC that includes two channels of ADC and six channels of DAC. The ADC outputs 24bit data and the DAC accepts up to 24bit input data. The ...
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ASAHI KASEI n Block Diagram LIN+ ADC LIN- RIN+ ADC RIN- DAC LOUT1 LPF LPF DAC ROUT1 LPF DAC LOUT2 LPF DAC ROUT2 LOUT3 LPF DAC LPF DAC ROUT3 AK4527B Block Diagram (DIR and AC-3 DSP are external parts) MS0056-E-00 ...
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... AK4527BVQ AKD4527B n Pin Layout SDOS 1 I2C 2 SMUTE 3 BICK 4 LRCK 5 SDTI1 6 SDTI2 7 SDTI3 8 SDTO 9 DAUX 10 DFS 11 MS0056-E-00 -40 +85 C 44pin LQFP(0.8mm pitch) Evaluation Board for AK4527B AK4527BVQ Top View - 3 - [AK4527B] 33 DZF2/OVF 32 RIN+ 31 RIN- 30 LIN+ 29 LIN- 28 ROUT1 27 LOUT1 26 ROUT2 25 LOUT2 24 ROUT3 23 LOUT3 2000/10 ...
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ASAHI KASEI n Compatibility with AK4527 1. Functions Functions Overflow flag Clock mode Sampling speed mode auto setting Zero detection De-emphasis setting bus mode Analog output at power down mode Hi-Z 2. Pin Configuration Pin ...
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ASAHI KASEI No. Pin Name I/O 1 SDOS I SDTO Source Select Pin “L”: Internal ADC output, “H”: DAUX input 2 I2C I Control Mode Select Pin “L”: 3-wire Serial, “H” SMUTE I Soft Mute Pin When this ...
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ASAHI KASEI No. Pin Name I/O 23 LOUT3 O DAC3 Lch Analog Output Pin 24 ROUT3 O DAC3 Rch Analog Output Pin 25 LOUT2 O DAC2 Lch Analog Output Pin 26 ROUT2 O DAC2 Rch Analog Output Pin 27 LOUT1 ...
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ASAHI KASEI (AVSS, DVSS=0V; Note 5) Parameter Power Supplies Analog Digital Output buffer |AVSS-DVSS| Input Current (any pins except for supplies) Analog Input Voltage Digital Input Voltage Ambient Temperature (power applied) Storage Temperature Notes: 5. All voltages with respect to ...
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ASAHI KASEI (Ta=25 C; AVDD, DVDD, TVDD=5V; AVSS, DVSS=0V; VREFH=AVDD; fs=44.1kHz; BICK=64fs; Signal Frequency=1kHz; 24bit Data; Measurement Frequency=20Hz 20kHz at fs=44.1kHz, 20Hz~40kHz at fs=96kHz; unless otherwise specified) Parameter ADC Analog Input Characteristics: Differential Inputs; Analog Source Impedance=470 Resolution S/(N+D) (-0.5dBFS) ...
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ASAHI KASEI (Ta=25 C; AVDD, DVDD=4.5 5.5V; TVDD=2.7 5.5V; fs=44.1kHz; DEM=OFF) Parameter ADC Digital Filter (Decimation LPF): Passband (Note 16) Stopband Passband Ripple Stopband Attenuation Group Delay (Note 17) Group Delay Distortion ADC Digital Filter (HPF): Frequency Response (Note 16) ...
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ASAHI KASEI (Ta=25 C; AVDD, DVDD=4.5 5.5V; TVDD=2.7 5.5V) Parameter High-Level Input Voltage Low-Level Input Voltage High-Level Output Voltage (SDTO pin: (DZF1, DZF2/OZF pins: Low-Level Output Voltage (SDTO, DZF1, DZF2/OZF pins: Iout= 100µA) (SDA pin: Input Leakage Current (Ta=25 C; ...
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ASAHI KASEI Parameter Control Interface Timing (3-wire Serial mode): CCLK Period CCLK Pulse Width Low Pulse Width High CDTI Setup Time CDTI Hold Time CSN “H” Time CSN “ ” to CCLK “ ” CCLK “ ” to CSN “ ...
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ASAHI KASEI n Timing Diagram MCLK LRCK BICK LRCK tBLR BICK tLRS SDTO SDTI MS0056-E-00 1/fCLK tCLKH tCLKL 1/fs tBCK tBCKH tBCKL Clock Timing tLRB tSDS tSDH Audio Interface Timing - 12 - [AK4527B] VIH VIL VIH VIL VIH VIL ...
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ASAHI KASEI CSN tCSS CCLK CDTI WRITE Command Input Timing (3-wire Serial mode) CSN CCLK CDTI D3 WRITE Data Input Timing (3-wire Serial mode) SDA tBUF tLOW tR SCL tHD:STA tHD:DAT Stop Start tPD PDN SDTO MS0056-E-00 tCCKL tCCKH tCDS ...
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ASAHI KASEI n System Clock The external clocks, which are required to operate the AK4527B, are MCLK, LRCK and BICK. There are two methods to set MCLK frequency. In Manual Setting Mode (ACKS = “0”: Default), the sampling speed is ...
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ASAHI KASEI LRCK fs 32.0kHz 44.1kHz 48.0kHz 88.2kHz 96.0kHz Table 5. System Clock Example (Auto Setting Mode) n De-emphasis Filter The AK4527B includes the digital de-emphasis filter (tc=50/15µs) by IIR filter. This filter corresponds to three sampling frequencies (32kHz, 44.1kHz, ...
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ASAHI KASEI LRCK BICK(64fs) SDTO( SDTI(i) Don’t Care 19 SDTO-23:MSB, 0:LSB; SDTI-19:MSB, 0:LSB Lch Data LRCK BICK(64fs) SDTO( SDTI(i) Don’t ...
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ASAHI KASEI n Overflow Detection The AK4527B has overflow detect function for analog input. Overflow detection is enabled when OVFE bit is set to “1” at serial control mode. OVF pin goes to “H” if analog input of Lch or ...
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ASAHI KASEI n Digital Attenuator AK4527B has channel-independent digital attenuator (256 levels, 0.5dB step). Attenuation level of each channel can be set by each ATT7-0 bits (table 10). ATT7-0 Table 10. Attenuation level of digital attenuator The transition between set ...
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ASAHI KASEI n Soft mute operation Soft mute operation is performed at digital domain. When the SMUTE pin goes to “H”, the output signal is attenuated by - during 1024 LRCK cycles. When the SMUTE pin is returned to “L”, ...
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ASAHI KASEI n Power-Down The ADC and DACs of AK4527B are placed in the power-down mode by bringing PDN “L” and both digital filters are reset at the same time. PDN “L” also reset the control registers to their default ...
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ASAHI KASEI n Reset Function When RSTN = “0”, ADC and DACs are powered-down but the internal register are not initialized. The analog outputs go to VCOM voltage, DZF1-2 pins go to “H” and SDTO pin goes to “L”. Because ...
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ASAHI KASEI n Serial Control Interface The AK4527B can control its functions via registers. Internal registers may be written by 2 types of control mode. The chip address is determined by the state of the CAD0 and CAD1 inputs. PDN ...
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ASAHI KASEI n Mapping of Program Registers Addr Register Name 00H Control 1 01H Control 2 02H LOUT1 Volume Control ATT7 03H ROUT1 Volume Control ATT7 04H LOUT2 Volume Control ATT7 05H ROUT2 Volume Control ATT7 06H LOUT3 Volume Control ...
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ASAHI KASEI n Register Definitions Addr Register Name 00H Control 1 default SMUTE: Soft Mute Enable 0: Normal operation 1: All DAC outputs soft-muted Register bit of SMUTE is ORed with the SMUTE pin if P/S = “L”. DIF1-0: Audio ...
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ASAHI KASEI Addr Register Name 02H LOUT1 Volume Control 03H ROUT1 Volume Control 04H LOUT2 Volume Control 05H ROUT2 Volume Control 06H LOUT3 Volume Control 07H ROUT3 Volume Control Default ATT7-0: Attenuation Level (see table 9.) Addr Register Name 08H ...
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ASAHI KASEI Addr Register Name 09H Clock mode Default RSTN: Internal timing reset 0: Reset. DZF1-2 pins go to “H”, but registers are not initialized. 1: Normal operation Addr Register Name 0AH Zero detect OVFE Default PWDAN: Power-down control of ...
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ASAHI KASEI Figure 10 shows the system connection diagram. An evaluation board is available which demonstrates application circuits, the optimum layout, power supply arrangements and measurement results. Condition: TVDD=5V, 3-wire serial control mode, CAD1-0 = “00”, Full-differential input uP Digital ...
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ASAHI KASEI Digital Ground System Controller Note: AVSS and DVSS must be connected to the same analog ground plane. 1. Grounding and Power Supply Decoupling The AK4527B requires careful attention to power supply and grounding arrangements. AVDD and DVDD are ...
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ASAHI KASEI AK4527B 2.2nF RIN+ 32 RIN- 31 LIN+ 30 LIN- 29 Figure 12. Single End Input Example (ADIF= “L”; Not using op-amp) AK4527B 2.2nF RIN+ 32 RIN- 31 3.0Vpp LIN+ 30 LIN- 29 Figure 13. Single End Input Example ...
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ASAHI KASEI 4. Analog Outputs The analog outputs are also single-ended and centered around the VCOM voltage. The input signal range scales with the supply voltage and nominally 0.6 x VREFH Vpp. The DAC input data format is 2’s complement. ...
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ASAHI KASEI n Applications 1) Zoran AC3 decoder, ZR38650 Analog Input Analog Output Digital Input Figure 17. Application circuit example (ZR38650) 2) Yamaha AC3 decoder, YSS912 Analog Input Analog Output 256fs Digital Input Figure 18. Application circuit example (YSS912) 3) ...
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ASAHI KASEI 44pin LQFP (Unit: mm) 12.80 0.30 10. 0.37 0.10 0.15 n Package & Lead frame material Package molding compound: Lead frame material: Lead frame surface treatment: MS0056-E-00 PACKAGE 1.70max ...
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... AKM harmless from any and all claims arising from the use of said product in the absence of such notification. MS0056-E-00 MARKING AKM AK4527BVQ XXXXXXX JAPAN 1 1) Pin #1 indication 2) Date Code: XXXXXXX(7 digits) 3) Marking Code: AK4527BVQ 4) Country of Origin 5) Asahi Kasei Logo IMPORTANT NOTICE - 33 - [AK4527B] 2000/10 ...