Datasheet
TLV320AIC3256
www.ti.com
SLOS630B –DECEMBER 2010–REVISED JANUARY 2013
Table 1. TERMINAL FUNCTIONS (continued)
5x5mm 40-
WCSP
PIN QFN
(YZF) NAME TYPE DESCRIPTION
(RSB) PIN
BALL NO.
NO.
General purpose output
CLKOUT output
INT1 output
INT2 output
Audio serial data bus (primary) ADC word clock output
Digital microphone clock output
Audio serial data bus (secondary) data output
Audio serial data bus (secondary) bit clock output
Audio serial data bus (secondary) word clock output
16 C6 SPI_SELECT I Control mode select pin ( 1 = SPI, 0 = I
2
C )
17 D6 IN1_L I Multifunction analog input,
Single-ended configuration: MIC 1 or Line 1 left
Differential configuration: MIC or Line right, negative
18 E6 IN1_R I Multifunction analog input,
Single-ended configuration: MIC 1 or Line 1 right
Differential configuration: MIC or Line right, positive
19 F6 IN2_L I Multifunction analog input,
Single-ended configuration: MIC 2 or Line 2 right
Differential configuration: MIC or Line left, positive
20 G6 IN2_R I Multifunction analog input,
Single-ended configuration: MIC 2 or Line 2 right
Differential configuration: MIC or Line left, negative
21 E4, E5 AVss GND Analog Ground
22 G5 REF O Reference voltage output for filtering
23 G4 MICBIAS O Microphone bias voltage output
24 F5 IN3_L I Multifunction analog input,
Single-ended configuration: MIC3 or Line 3 left,
Differential configuration: MIC or Line left, positive,
Differential configuration: MIC or Line right, negative
25 F4 IN3_R I Multifunction analog input,
Single-ended configuration: MIC3 or Line 3 right,
Differential configuration: MIC or Line left, negative,
Differential configuration: MIC or Line right, positive
26 G3 LOL O Left line output
27 F3 LOR O Right line output
28 E3 GND_SENSE I External ground reference for headphone interface –0.5V to 0.5V
29 G2 AVdd PWR Analog voltage supply 1.5V–1.95V
30 G1 Vsys PWR Power supply 1.5V–5.5V, Vsys must always be greater than or equal to AVdd and
DVdd (Vsys ≥ AVdd, DVdd)
31 F1 HPL O Left headphone output
32 F2 DRVdd_HP PWR Power supply for headphone output stage
Ground-centered circuit configuration, 1.5V to 1.95V
Unipolar circuit configuration, 1.5V to 3.6V
33 E1 HPR O Right headphone output
34 E2 MICDET I Microphone detection
35 D1 VNEG PWR Negative supply for headphones. –1.8V to 0V
Input when charge pump is disabled,
Filtering output when charge pump is enabled
36 D2 FLY_N PWR Negative terminal for charge-pump flying capacitor
37 D3 DVss_CP GND Charge pump ground
38 C2 FLY_P PWR Positive terminal for charge pump flying capacitor
39 C1 DVdd_CP PWR Charge Pump supply; recommended to connect to DVdd
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