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Summary of Contents for C-Media CM6530N
- Page 1 CM6530N+CM7104 Demo Board User’s Guide...
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Page 2: Notices
Republic of China and international copyright laws. TRADEMARKS C-Media, the C-Media Logo, Xear 3D, Xear 3D Logo, Speaker Shifter, Smart Jack, and Smart Audio Jack, Middleware are trademarks of C-Media Electronics Inc. in Republic of China andor other countries. - Page 3 CM6530N+CM7104 USB Audio Controller Demo Board User’s Guide v1.00 Revision Notes Revision Date Description 2023/04/21 First draft Worldwide Solution That Touch People’s Hearts! - 3 -...
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Page 4: Table Of Contents
CM6530N+CM7104 USB Audio Controller Demo Board User’s Guide v1.00 TABLE OF CONTENTS NOTICES ........................... - 2 - SECTION 1 OVERVIEW 1.1 Introduction ..................- 5 - Demo Board Contents ....................- 7 - Board as USB Audio Device..................- 8 - Playback / Recording Functions ................ -
Page 5: Section 1 Overview
SECTION 1 OVERVIEW 1.1 Introduction The CM6530N is a low power USB 2.0 audio controller builds in 8051 for flexible applications. Accompany with ultra low power codec makes it suitable for low power headset, notebook/mobile docking and microphone applications. The internal 8051 can also be developed to different applications, such as Android Phone or idevice Accessories with special functions, such as HID buttons or LED control. - Page 6 CM6530N+CM7104 USB Audio Controller Demo Board User’s Guide v1.00 the DSP core for wide use case flexibility. Two digital audio interfaces are provided, supporting I S/PCM/TDM audio formats. Two differential analog microphone inputs and up to four digital microphone inputs can accept audio signals from multiple microphone or line input sources.
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Page 7: Demo Board Contents
CM6530N+CM7104 USB Audio Controller Demo Board User’s Guide v1.00 1.2 Demo Board Contents The CM6530N+CM7104 USB Audio controller demo board has several hardware features. With each feature’s description in figure, the feature’s location can be clearly identified. MIC In Line Out... -
Page 8: Section 2 Getting Started
CM6530N+CM7104 USB Audio Controller Demo Board User’s Guide v1.00 SECTION 2 GETTING STARTED 2.1 Board as USB Audio Device Connect the demo board to the host by plugging the USB core with a type C connector, as shown below. Type C USB connector (J12) 2.2 Playback / Recording Functions... -
Page 9: Earphone (J20)
CM6530N+CM7104 USB Audio Controller Demo Board User’s Guide v1.00 2.2.2 EARPHONE (J20) EARPHONE(J20) is output from the class D AMP. Have jack detect function with input. 2.2.3 RCA Output R_ch (J21) & L_ch (J22) RCA Output R_ch (J21) & L_ch (J22) from the Class D AMP. -
Page 10: Evaluation Board With Peripheral Control
CM6530N+CM7104 USB Audio Controller Demo Board User’s Guide v1.00 2.3 Evaluation Board with peripheral Control CM6530N+CM7104 embedded external peripheral control and functions enable & select pins. - HID Buttons - Function Switch - LED Indicators - Test Pin (for flash recover) GPIO Function Switch Pins 2.3.1 HID Buttons (SW2, SW3, SW4, SW5) -
Page 11: Function Switch (Sw6)
CM6530N+CM7104 USB Audio Controller Demo Board User’s Guide v1.00 2.3.2 Function Switch (SW6) Switch the CM7104 DSP ON/OFF by GPIO_15). 2.3.3 EQ Effect Switch (SW1) Switch the EQ function by GPIO_12& GPIO_13). 2.3.4 TEST Pin (J14) Description When firmware crash, short this pin could Test enable firmware recover mode. -
Page 12: Uart Interface (J18)
3V3 for UART Power. Pin2 UART_TX select by firmware Pin3 UART_RX select by firmware Pin4 2.3.6 I2C Interface (J4) Connect the J4 Pin3-4 & Pin 5-6 short for CM6530N+CM7104 I2C I/O. Symbol Description Pin1---3.3V CM6530N LDO output 3.3V Pin2---3.3V DBVDD1 with CM7104 3.3V... -
Page 13: Mclk1 Sel(J9)
2.3.7 MCLK1 Sel(J9) Connect the J9 Pin1-2 select the DAC_MCLK clock. Symbol Description Connect J9 Pin1-2 CM7104 MCLK1 from CM6530N DAC_MCLK Connect J9 Pin3-4 CM7104 MCLK1 from OSC X1 Connect J9 Pin5-6 CM7104 MCLK1 from CM6530N GPIO_09 2.3.8 SPDIF & Class D Amp power pin header (J23) -
Page 14: Cm7104 Master I2C Pin Header (J5)
CM6530N+CM7104 USB Audio Controller Demo Board User’s Guide v1.00 2.3.9 CM7104 Master I2C pin header (J5) MASTER_SCL MASTER_SDA 3.3V Symbol Description Pin1 DBVDD 3.3V Pin2 MASTER_SDA data pin Pin3 MASTER_SCL clock pin Pin4 2.3.10 LED (D5) & 3 colors LED (D4) Pin header J15 is LED 5V power input. -
Page 15: Eua Class D Amp
CM6530N+CM7104 USB Audio Controller Demo Board User’s Guide v1.00 2.3.11 EUA Class D Amp EUA Sel(J26) pin2 audio L-ch, pin1 R-ch. CN2 EUA_RN CN3 EUA_RP CN4 EUA_LP CN5 EUA_LN Description Symbol EUA Sel(J26) Connect J26 Pin1-3/Connect J26 Pin2-4 EUA output pin header... -
Page 16: Type C Vbus To Usb5V (J12)
CM6530N+CM7104 USB Audio Controller Demo Board User’s Guide v1.00 2.3.13 Type C VBUS to USB5V (J12) Description Symbol Connect J12 pin1-2 for system USB5V 2.3.14 DMIC1 (J8) & DMIC2 (J11) Description Symbol DMIC1 (J8) Pin1 DBVDD 3.3V for DMIC power...
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