WM8716EDS データシートの表示（PDF） - Wolfson Microelectronics plc
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WM8716EDS Datasheet PDF : 21 Pages
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WM8716
Production Data
PIN DESCRIPTION
PIN NAME
TYPE
DESCRIPTION
Hardware Mode
Normal Mode
Differential Mode
8X Mode
Software
Mode
1 LRCIN
Digital input
Sample rate clock input.
2
DIN
Digital input
Audio data serial input
DINL
Audio data
serial input
3 BCKIN
Digital input
Audio data bit clock input.
4
CLKO
Digital output Oscillator buffered output (system clock).
5
XTI
Analogue input Oscillator input.
6
XTO Analogue output Oscillator output.
7
DGND
Supply
Digital ground supply.
8
DVDD
Supply
Digital positive supply.
9 AVDDR
Supply
Analogue positive supply.
10 AGNDR
Supply
Analogue ground supply.
11 VMIDR Analogue output Mid rail right channel.
12 MODE8X Digital input
Internal pull-down, active high, 8 x fs mode.
13 VOUTR Analogue output Right channel DAC output.
14 AGND
Supply
Analogue ground supply.
15 AVDD
Supply
Analogue positive supply.
16 VOUTL Analogue output Left channel DAC output.
17 DIFFHW
Digital input
Internal pull-down, active high, differential mono mode
18 VMIDL Analogue output Mid rail left channel.
19 AGNDL
Supply
Analogue ground supply.
20 AVDDL
Supply
Analogue positive supply.
21 ZERO
Digital output Infinite zero detect – active low. Open drain type output with active pull-down.
22 RSTB
Digital input
Reset input – active low. Internal pull-up.
23 CSBIWO Digital input
Wordlength:
Internal pull-down Low for 16-bit data.
High for 20-bit
(normal) or 24-bit
I2S data.
Wordlength:
Low for 16-bit data.
High for 20-bit
(normal) or 24-bit
I2S data.
Wordlength:
Low for 20-bit data.
High for 24-bit data.
Low for
serial
interface
operation.
24 MODE
Digital input
Low for hardware
Internal pull-up mode.
Low for left
mono mode.
High for right
mono mode
DINR
High for
software
mode.
25 MUTEB
Digital input
Low to soft mute.
Internal pull-up High for normal
operation.
Z for automute.
Low to soft mute.
High for normal
operation.
Z for automute.
Low to soft mute.
High for normal
operation.
Z for automute.
Low to
soft mute.
High for
normal
operation.
Z for
automute.
26 MD/DM0
Digital input
De-emphasis mode
Internal pull-up select bit 0.
Low for no
de-emphasis.
High for 44.1kHz
de-emphasis.
LRP – LRCLK
polarity select.
Control serial
interface
data signal.
27 MC/DM1
Digital input
De-emphasis mode
Internal pull-up select bit 1.
Low for normal filter
operation.
High for filter slow
roll-off.
Unused.
Leave unconnected.
Control serial
interface
clock signal.
28 ML/I2S
Digital input
Audio serial format:
Audio serial format:
Input data format:
Control serial
Internal pull-up
Low – right justified.
High – I2S.
Low – right justified.
High – I2S.
Low – right justified.
High – left justified.
interface
load signal.
Note: Digital input pins have Schmitt trigger input buffers except Pin 12 and Pin 17.
WOLFSON MICROELECTRONICS LTD
PD Rev 3.1 April 2001
6
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