wm8400 Wolfson Microelectronics plc, wm8400 Datasheet - Page 22

• Manufacturer Part Number: wm8400
• Description: Wolfson Audioplustm Hi-fi Audio Codec And Power Management Unit For Mobile Multimedia
• Manufacturer: Wolfson Microelectronics plc

WM8400
w
Test Conditions
DCVDD = 1.8V, HBVDD = MBVDD = I2CVDD = I2S1VDD = I2S2VDD = AVDD = HPVDD = 3.0V, SPKVDD = 5V,
T
PARAMETER
Digital Input / Output
Input HIGH Level
Input LOW Level
Output HIGH Level
Output LOW Level
Input capacitance
Input leakage
FLL
Input Frequency
Lock time
GPIO
Clock output duty cycle
(Integer OPCLKDIV)
Clock output duty cycle
(Non-integer OPCLKDIV)
Interrupt response time for accessory /
button detect
A
= +25
o
C, 1kHz signal, fs = 44.1kHz, PGA gain = 0dB, 24-bit audio data unless otherwise stated.
SYSCLK=FLL output;
SYSCLK=FLL output;
SYSCLK=FLL output;
Input not de-bounced
TEST CONDITIONS
OPCLKDIV=0000
OPCLKDIV=1000
OPCLKDIV=0000
OPCLKDIV=1000
OPCLKDIV=0100
OPCLKDIV=0100
Input de-bounced
Input de-bounced
SYSCLK=MCLK;
SYSCLK=MCLK;
SYSCLK=MCLK;
TOCLKSEL=1
I
I
OH
OL
=-1mA
=1mA
0.7x I2S1VDD
0.7x I2S2VDD
0.9x I2S1VDD
0.9x I2S2VDD
0.7x I2CVDD
0.9x I2CVDD
0.7x MBVDD
0.9x MBVDD
0.7xHBVDD
0.9xHBVDD
2
2
21
19
/ f
/ f
-0.9
MIN
32
10
35
45
45
45
33
33
SYSCLK
SYSCLK
TYP
10
0
0.3x I2S1VDD
0.3x I2S2VDD
0.1x I2S1VDD
0.1x I2S2VDD
0.3x MBVDD
0.3x I2CVDD
0.1x MBVDD
0.1x I2CVDD
0.3xHBVDD
0.1xHBVDD
2
2
PP, April 2009, Rev 3.0
22
20
22000
MAX
/ f
/ f
509
0.9
65
55
55
55
66
66
SYSCLK
SYSCLK
Pre-Production
Ref Clock
Periods
UNIT
kHz
pF
µA
%
%
%
%
%
%
V
V
V
V
s
s
s
22