The PCM6xx0-Q1 are a scalable family of devices that consist of high-performance, low-power, flexible, multichannel, audio analog-to-digital converters (ADCs) with extensive feature integration. These devices are intended for automotive applications such as vehicle cabin active noise cancellation, hands-free in-vehicle communication, emergency call, and multimedia applications. The high dynamic range of these devices enables far-field audio recording with high fidelity. These devices integrate a host of features that reduce cost, board space, and power consumption in space-constrained automotive sub-system designs. Package, performance, and device-compatible configuration registers make this family of devices well suited for scalable system designs.
The PCM6xx0-Q1 consist of the following blocks:
Communication to the PCM6xx0-Q1 for configuring the control registers is supported using an I2C or SPI interface. The device supports a highly flexible audio serial interface [time-division multiplexing (TDM), I2S, or left-justified (LJ)] to transmit audio data seamlessly in the system across devices.
The device can support multiple devices by sharing the common I2C and TDM buses across devices. Moreover, the device includes a daisy-chain feature and a secondary audio serial output data pin. These features relax the shared TDM bus timing requirements and board design complexities when operating multiple devices for applications requiring high audio data bandwidth.
Table 1 lists the reference abbreviations used throughout this document to registers that control the device.
|Page y, register z, bit k||Py_Rz_Dk||Single data bit. The value of a single bit in a register.||Page 4, register 36, bit 0 = P4_R36_D0|
|Page y, register z, bits k-m||Py_Rz_D[k:m]||Range of data bits. A range of data bits (inclusive).||Page 4, register 36, bits 3-0 = P4_R36_D[3:0]|
|Page y, register z||Py_Rz||One entire register. All eight bits in the register as a unit.||Page 4, register 36 = P4_R36|
|Page y, registers z-n||Py_Rz-Rn||Range of registers. A range of registers in the same page.||Page 4, registers 36, 37, 38 = P4_R36-R38|