BBK DK2810HD - Page 81

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◆ 5-V Tolerant Inputs
◆ Supports Two PLL Input Modes:
◆ Crystal Mode
◆ No-Crystal Mode
3. PIN DESCRIPTION
PIN Symbol I/O Description
1 VRA_PLL Voltage reference for PLL analog supply 1.8 V
2 PLL_FLT_RET AO PLL external filter return
3 PLL_FLTM AO PLL negative input
4 PLL_FLTP AI PLL positive input
5 AVSS P Analog ground
6 AVSS P Analog ground
7 VRD_PLL P Voltage reference for PLL digital supply 1.8 V
8 AVSS_PLL P Analog ground for PLL
9 AVDD_PLL P 3.3-V analog power supply for PLL
10 VBGAP P Band gap voltage reference
11 RESET DI System reset input
12 HP_SEL DI Headphone in/out
13 PDN DI Power down
14 MUTE DI Soft mute of outputs
15 DVDD P Digital power 3.3-V supply for digital core
16 DVSS P Digital ground for digital core
17 VR_DPLL P Voltage reference for digital PLL supply 1.8 V
18 OSC_CAP AO Oscillator capacitor in crystal mode
19 XTL_OUT AO 1.8-V output drive to the crystal
20 XTL_IN AI 1.8-V input port for the oscillator circuit
21 RESERVED Connect to digital ground
22 TBASE_SEL Connect to digital ground in crystal mode
23 RESERVED Connect to digital ground
24 SDA DIO
I2C serial control data interface input / output
25 SCL DI I2C serial control clock input output
26 LRCLK DI Serial audio data left / right clock
27 SCLK DI Serial audio data clock