5 Pin Configuration and Functions

Figure 5-1 RGE Package24-Pin VQFNTop View

Table 5-1 Pin Functions

PIN		TYPE⁽¹⁾	DESCRIPTION
NO.	NAME	TYPE⁽¹⁾	DESCRIPTION
1	SPI_SEL	I	Selects between SPI and I²C digital interface modes; (1 = SPI mode) (0 = I²C mode)
2	RST	I	Reset for logic, state machines, and digital filters; asserted LOW.
3	AINL	I	Analog single-ended line left input
4	AINR	I	Analog single-ended line right input
5	NC	O	No Connect (Leave unconnected)
6	AVSS	GND	Analog Ground, 0 V
7	AVDD	PWR	Analog Core Supply Voltage, 1.5 V to 1.95 V, tied internally to the LDO output
8	LDO_SEL	I	Select Pin for LDO; ties to either SPKVDD or SPKVSS
9	SPKM	O	Class-D speaker driver inverting output
10	SPKVDD	PWR	Class-D speaker driver power supply
11	SPKVSS	PWR	Class-D speaker driver power supply ground supply
12	SPKP	O	Class-D speaker driver noninverting output
13	DIN	I	Audio Serial Data Bus Input Data
14	WCLK	I/O	Audio Serial Data Bus Word Clock
15	BCLK	I/O	Audio Serial Data Bus Bit Clock
16	MCLK	I	Master CLK Input / Reference CLK for CLK Multiplier - PLL (On startup PLLCLK = CLKIN)
17	MISO	O	SPI Serial Data Output
18	GPIO/DOUT	I/O/Z	GPIO / Audio Serial Bus Output
19	SCL/SSZ	I	Either I²C Input Serial Clock or SPI Chip Select Signal depending on SPI_SEL state
20	SDA/MOSI	I	Either I²C Serial Data Input or SPI Serial Data Input depending on SPI_SEL state.
21	SCLK	I	Serial clock for SPI interface
22	IOVDD	PWR	I/O Power Supply, 1.1 V to 3.6 V
23	DVDD	PWR	Digital Power Supply, 1.65 V to 1.95 V
24	DVSS	GND	Digital Ground, 0 V

(1) I = Input, O = Output, GND = Ground, PWR = Power, Z = High Impedance