WM9090ECS/R Wolfson Microelectronics, WM9090ECS/R Datasheet - Page 9

• Manufacturer Part Number: WM9090ECS/R
• Description: Audio CODECs Audio Subsystem w/ capless headphones
• Manufacturer: Wolfson Microelectronics

Specifications of WM9090ECS/R

• Interface Type: 2-Wire, l2C
• Thd Plus Noise: 80 dB
• Ic Function: Ultra Low Power Audio Subsystem
• Brief Features: Mono Class D Speaker Driver, Automatic Gain Control (AGC)
• Supply Voltage Range: 2.7V To 5.5V
• Operating Temperature Range: -40°C To +85°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

w
Pre-Production
Test Conditions
SPKVDD = 3.6V, AVDD=1.8V, GND=0V, T
Speaker Driver Class D Audio Performance (R
SNR (A-weighted)
THD (P
THD+N (P
PSRR
DC Offset at Load
Efficiency
Output Power
SPKVDD Leakage Current
Quiescent Current
Analogue Reference Level
VMID Midrail Reference Voltage
Charge Pump
Start-up Time
Supply Voltage
CPVOUTP
CPVOUTN
Output Impedance
Flyback Capacitor
(between CPCA and CPCB)
CPVOUTP Capacitor
CPVOUTN Capacitor
Digital Input / Output
Input HIGH Level
Input LOW Level
Output HIGH Level
Output LOW Level
Input capacitance
Input leakage
Start-Up Time
Start up time
PARAMETER
O
=500mW)
O
=500mW)
AVDD with 100mVpk-pk at 217Hz, differential input
Differential input from IN1P/N or IN2P/N
A
SPKVDD with 100mVpk-pk at 217Hz,
Speaker Boost = 12dB, 0dBFS input
Stereo input from IN1P/N or IN2P/N
= +25
SPKVDD=5.0V, THD+N ≤ 1%,
SPKVDD=4.2V, THD+N ≤ 1%,
SPKVDD=3.7V, THD+N ≤ 1%,
L
=8Ω + 10μH BTL)
Speaker and Headphone
Speaker Boost = 12dB,
o
Speaker Boost = 12dB
Speaker Boost = 12dB
Speaker Boost = 12dB
Speaker Boost = 12dB
Speaker Boost = 12dB
C, 1kHz signal, PGA gain = 0dB unless otherwise stated
TEST CONDITIONS
Low power mode
Low power mode
differential input
Normal mode
Normal mode
I
I
OH
OL
at 2V
at 2V
at 2V
= -1mA
= 1mA
AVDD
AVDD
0.7 ×
0.7 ×
1.71
-3%
-0.9
MIN
1
2
2
-AVDD/2
AVDD/2
AVDD/2
-AVDD
AVDD
1000
TBD
TBD
PP, January 2010, Rev 3.0
TYP
950
750
-72
-70
2.2
2.2
2.2
92
90
80
10
70
85
50
1
5
AVDD
AVDD
0.3 ×
0.3 ×
MAX
+3%
500
2.0
0.9
WM9090
UNIT
mW
mV
mA
ms
kΩ
dB
dB
dB
dB
μA
μF
μF
μF
pF
uA
μs
%
V
V
V
V
V
V
V
V
9