AK5371AVQP AKM Semiconductor Inc, AK5371AVQP Datasheet

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Features: USB-IF Certified Incorporates USB Audio Controller USB Serial Interface Engine Audio Class Encoder/Decoder 2 Endpoints (FIFO) USB transceiver 16 bit A/D Converter 2 channels Mute/Volume Control A/D S/N: 84dBA (44.1kHz, Gain = 0dB) Low Power Dissipation Normal Operation: 26mA ...

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Block Diagram VSS2 MICBIAS MICR 20dB - + AMPR1O AMPR2I MICL 20dB - + AMPL1O AMPL2I ■ Ordering Guide AK5371AVQ 0 ∼ +70 °C AKD5371 Evaluation Board ■ Pin Layout VD 1 VSS1 VSS2 NC TESTMODE3 5 XTALOUT XTALIN ...

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No. Signal Name I VSS1 3 VSS2 TESTMODE3 6 XTALOUT 7 XTALIN 8 TESTMODE2 9 LFLT1 10 LFLT2 11 BIASSEL VCOM 15 MICBIAS 16 MICL 17 AMPL1O 18 AMPL2I ...

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No. Signal Name I VSS3 28 VREF TESTMODE1 TEST I EPAO EPDI 39 EPEN 40 EPSEL ...

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VSS1=VSS2=VSS3=0V Parameter Power Supplies Input Current (any pins except for supplies) Analog Input Voltage Digital Input Voltage Ambient Temperature Storage Temperature Note 1. All voltages with respect to ground. VSS1, VSS2 and VSS3 pin should be connected. Warning: Operation at ...

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Ta=25°C,VA=VD=3.3V, Signal Frequency=1kHz, Sampling Frequency Fs=44.1kHz BW=20Hz – 20kHz, Test Mode; unless otherwise specified Parameter Stereo ADC (2 channel) Resolution S/N (A weight) ( AMPR2I/AMPL2I input) (IPGA are set to 0dB) S/(N+D) (-1dB analog input) (IPGA are set to 0dB) ...

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Ta=0 - 70°C; VD=3.0 - 3.6V; VSS1=0V Measurement under static state All digital pins except DP, DN. Schmitt hysteresis level of RST pin and levels of all test pins will not be tested Parameter EPDI, EPEN, EPSEL, pin “H” level ...

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VD”H” RST”H” PLL Clock Figure 2. Mode Change with respect to Bus States 2 (Bus transactions) Ta=25°C; VD=3.3V; VSS1=0V; CL=50pF Parameter Symbol Data Rate Output Impedance (Hi) Output Impedance (Lo) “H” level Output Voltage “L” level Output Voltage ...

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Ta=25°C; VD=3.3V; VSS1=0V Parameter Symbol Common Mode Range Differential Input Sensitivity Schmitt High Level Voltage Schmitt Low Level Voltage DP, DN MS0546-E-01 Receiver Characteristics Pins Conditions CMR DP, DN DIS DP, DN Vihs DP, DN Vils DP, DN Figure 5. ...

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Overview of AK5371A The AK5371A is the advanced stereo A/D converter, which converts analog signal into USB audio class formats. As the AK5371A incorporates all functions to build USB Audio Input Device, the AK5371A doesn’t require additional micro-controller, memory, ...

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Descriptor Overview When the device is connected to USB bus, the host assigns specific address to the device. Then the host reads the device information, which is called as descriptor, through default pipe (Endpoint 0). The AK5371A consists of ...

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Audio Format of the AK5371A The AK5371A supports two audio formats: 16bit/mono and 16bit/stereo. This feature can avoid the unnecessary occupation of USB bandwidth. 16bit/mono is assigned to <Interlace 1, Alt1>, 16bit/stereo is assigned to <Interface 1, Alt2>. The ...

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EEPROM I/F The AK5371A has EEPROM I/F for customizing Device Descriptor, and String Descriptor. idVendor(2byte), idProduct(2byte), bcdDevice(2byte), iManufacturer(1byte), iProduct(1byte) in Device Descriptor and related String Descriptor can be customized. TM type, 1K bit, 2K bit bit EEPROM ...

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System Block Diagram The following figure shows the system connection diagram. This is an example which uses external 1K bit EEPROM (AK93C45A) as Device and String Descriptor. If EEPROM is not used, EPEN pin should be tied to VSS1. ...

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AK5371A Descriptors Specification 1 Device descriptor Offset Field 0 bLength 1 bDescriptorType 2 bcdUSB 4 bDeviceClass 5 bDeviceSubClass 6 bDeviceProtocol 7 bMaxPacketSize0 8 idVendor 10 idProduct 12 bcdDevice 14 iManufacturer 15 iProduct 16 iSerialNumber 17 bNumConfigurations 2 Configuration Descriptor The ...

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Class-specific Audio Control Interface 3.3 Class-specific Audio Control Interface Header Descriptor 3.3.1 Contains general information about the audio device. Offset Field Size 0 bLength 1 bDescriptorType 2 bDescriptorSubtype 3 bcdADC 5 wTotalLength 7 bInCollection 8 baInterfaceNr(1) 3.3.2 Input terminal ...

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Audio streaming interface 3.4.1 Zero bandwidth interface descriptor Offset Field Size 0 bLength 1 bDescriptorType 2 bInterfaceNumber 3 bAlternateSetting 4 bNumEndpoints 5 bInterfaceClass 6 bInterfaceSubclass 7 bInterfaceProtocol 8 iInterface 3.4.2 Interface descriptor(Alt = 1, 16bit Mono) Offset Field Size ...

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Endpoint descriptor 3.5.1 Standard Endpoint Descriptor Offset Field 0 bLength 1 bDescriptorType 2 bendpointAddress 3 bmAttributes 4 wMaxPacketSize 6 wInterval 7 bRefresh 8 bSynchAddress 3.5.2 Class-specific isochronous audio data endpoint descriptor Offset Field Size 0 bLength 1 bDescriptorType 2 ...

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Interface descriptor (Alt = 2, 16bit Stereo) Offset Field Size 0 bLength 1 bDescriptorType 2 bInterfaceNumber 3 bAlternateSetting 4 bNumEndpoints 5 bInterfaceClass 6 bInterfaceSubclass 7 bInterfaceProtocol 8 iInterface 3.5.4 Class-specific audio streaming interface descriptor Offset Field Size 0 bLength ...

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Endpoint descriptor 3.6.1 Standard Endpoint Descriptor Offset Field 0 bLength 1 bDescriptorType 2 bendpointAddress 3 bmAttributes 4 wMaxPacketSize 6 wInterval 7 bRefresh 8 bSynchAddress 3.6.2 Class-specific isochronous audio data endpoint descriptor Offset Field Size 0 bLength 1 bDescriptorType 2 ...

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String descriptor 1 String descriptors use UNICODE. except for LANGID. 3.7.1 LANGID (0x00) Field Offset Field 0 bLength 1 bDescriptorType 2 bString 3.7.2 iManufacterer (0x01) Field in Device Descriptor Offset Field 0 bLength 1 bdescriptorType 2 bString MS0546-E-01 Size ...

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Field in Device Descriptor Offset Field 0 bLength 1 bDescriptorType 2 bString MS0546-E-01 Size Value Description 1 0x34 Length of this descriptor 1 0x03 STRING descriptor 50 0x0041 “AK5371 0x004B 0x0035 0x0033 0x0037 0x0031 0x0020 0x0020 0x0020 ...

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Standard requests 4.1 Clear Feature The AK5371A accepts “Clear Feature” request without stall. Though this request does not influence to the operation of the device, the AK5371A does not support this request. 4.2 Get Configuration The AK5371A returns Configuration ...

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Get Status Offset Field Size 0 bmRequestType 1 1 bRequest 1 2 wValue 2 4 wIndex 2 6 wLength 2 The AKM USB MIC returns the following status. a) Device : 0x0000( AKM USB MIC is bus-powered device) b) ...

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Set Feature The AK5371A accepts “Set Feature” request without stall. However note that the AK5371A does not support this request. 4.9 Set Interface Audio format can be changed by the combination of Interface Number and Alternate Setting. Only 0x0000 ...

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Device specific Requests AKM USB Microphone supports ONLY SET_CUR as bRequest field in Set Request Values. 5.1 Audio Control Request AKM USB microphone support ONLY Feature Unit Control Request, not support other requests. Addition to this, it only supports ...

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Get Feature Unit Control Request AKM USB Microphone supports only one form of parameter block. a) Mute Control Offset Field Size 0 bmRequestType 1 1 bRequest 1 2 wValue 2 4 wIndex 2 6 wLength 2 The device outputs ...

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MS0546-E-01 Field Internal value wVolume Value 0x7FFF 0x1800 24.0000 -------- ------ --------- 0x1800 0x1800 24.0000 0x17FF 0x1700 23.0000 --------- ------ -------- 0x1701 0x1700 23.0000 0x1700 0x1700 23.0000 0x16FF 0x1600 22.0000 --------- ------ -------- 0x1201 0x1200 18.0000 0x1200 0x1200 18.0000 --------- ...

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Endpoint Control Request The AK5371A supports five sampling frequencies. The sampling rate is changed when “Set Endpoint Control Request ” is issued. SET_CUR, GET_CUR of bRequest is only supported. GET_MIN, GET_ MAX, and GET_RES of bRequest are not supported. ...

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LQFP(Unit:mm 0.5 ■ Package & Lead frame material Package molding compound: Lead frame material: Lead frame surface treatment: Solder (Pb free) plate MS0546-E-01 Package (AK5371AVQ) 9.0 ± 0.2 7 0.22 ± ...

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MS0546-E-01 Marking (AK5371AVQ) AK5371AVQ XXXXXXX 1 1) Pin #1 indication 2) Date Code: XXXXXXX (7 digits) 3) Marking Code: AK5371AVQ 4) Asahi Kasei Logo - 31 - 2008/11 ...

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Date (YY/MM/DD) Revision 07/02/15 00 08/11/06 01 These products and their specifications are subject to change without notice. When you consider any use or application of these products, please make inquiries the sales office of Asahi Kasei EMD Corporation (AKEMD) ...