WM8990ECS/RV Wolfson Microelectronics, WM8990ECS/RV Datasheet - Page 22

• Manufacturer Part Number: WM8990ECS/RV
• Description: Audio CODECs Stereo CODEC w.Class AB/D speaker driver
• Manufacturer: Wolfson Microelectronics

Specifications of WM8990ECS/RV

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8990
w
Test Conditions
DCVDD = 1.8V, DBVDD = 3.3V, AVDD = HPVDD = 3.3V, SPKVDD = 5V, T
PGA gain = 0dB, 24-bit audio data unless otherwise stated.
PARAMETER
Analogue Reference Levels
H1
Microphone Bias
H2
H3
H4
H5
Digital Input / Output
H6
H7
Note that digital input pins should not be left unconnected / floating.
Internal pull-up/pull-down resistors may be enabled on GPIO1, GPIO3, GPIO4 and GPIO5 if required.
H8
H9
H10
H11
PLL
H12
H13
GPIO
H14
H15
H16
VMID Midrail Reference Voltage
Bias Voltage
Bias Current Source
Output Noise Density
AVDD PSRR (217Hz)
Input HIGH Level
Input LOW Level
Output HIGH Level
Output LOW Level
Input capacitance
Input leakage
Input Frequency
Lock time
Clock output duty cycle
(Integer OPCLKDIV)
Clock output duty cycle
(Non-integer OPCLKDIV)
Interrupt response time for accessory /
button detect
M1BSEL=0 / M2BSEL=0
M1BSEL=1 / M2BSEL=1
100mV pk-pk @217Hz
SYSCLK=PLL output;
SYSCLK=PLL output;
SYSCLK=PLL 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
3mA load current
3mA load current
PRESCALE = 0b
PRESCALE = 1b
SYSCLK=MCLK;
SYSCLK=MCLK;
SYSCLK=MCLK;
1kHz to 20kHz
TOCLKSEL=1
I
on AVDD
I
OH
OL
=-1mA
=1mA
A
= +25
0.7×DBVDD
0.9×DBVDD
2
2
o
21
19
C, 1kHz signal, fs = 48kHz,
14.4
/ f
/ f
-3%
-5%
-5%
-0.9
MIN
7.7
35
45
45
45
33
33
SYSCLK
SYSCLK
0.65×AVDD
0.9×AVDD
AVDD/2
TYP
100
200
45
10
0
PD, March 2009, Rev 4.0
0.3×DBVDD
0.1×DBVDD
2
2
22
20
Production Data
+3%
+5%
+5%
/ f
/ f
0.9
18
36
65
55
55
55
66
66
MAX
3
SYSCLK
SYSCLK
nV/√Hz
MHz
MHz
mA
22
dB
uA
UNIT
pF
us
%
%
%
%
%
%
V
V
V
V
V
V
V
s
s
s