wm9090 Wolfson Microelectronics plc, wm9090 Datasheet - Page 8

• Manufacturer Part Number: wm9090
• Description: Ultra Low Power Audio Subsystem
• Manufacturer: Wolfson Microelectronics plc

WM9090
w
ELECTRICAL CHARACTERISTICS
Test Conditions
SPKVDD = 3.6V, AVDD=1.8V, GND=0V, T
Analogue Input Pins
Maximum Full-Scale input signal
level - IN1P/N and IN2P/N
Input Resistance
Input Capacitance
Input Programmable Gain Amplifiers (PGAs) IN1A, IN1B, IN2A and IN2B
Minimum Programmable Gain
Maximum Programmable Gain
Mute Attenuation
Common Mode Rejection Ratio
Output Programmable Gain Amplifiers (PGAs) SPKVOL, HPOUT1LVOL and HPOUT1RVOL
Minimum Programmable Gain
Maximum Programmable Gain
Programmable Gain Step Size
Mute Attenuation
Speaker Output Programmable Gain SPKOUTLBOOST
Programmable Gain
Headphone Driver Audio Performance (R
SNR (A-weighted)
THD (P
THD+N (P
THD (P
THD+N (P
Crosstalk (L/R)
PSRR
DC Offset
Output Power
Minimum Headphone Resistance
Headphone Capacitance
Quiescent Current
PARAMETER
O
O
=20mW)
=5mW)
O
O
=20mW)
=5mW)
AVDD with 100mVpk-pk at 217Hz, differential input
Device survival with load indefinitely applied
A
L
SPKVDD with 100mVpk-pk at 217Hz,
= +25
Differential or Single- Ended Mode
= 16Ω)
Differential Mode (217Hz input)
Path from IN1P/N or IN2P/N
After DC Servo calibration
SPKOUTLBOOST=111
SPKOUTLBOOST=110
SPKOUTLBOOST=101
SPKOUTLBOOST=100
SPKOUTLBOOST=011
SPKOUTLBOOST=010
SPKOUTLBOOST=001
SPKOUTLBOOST=000
o
All analogue input pins
C, 1kHz signal, PGA gain = 0dB unless otherwise stated
TEST CONDITIONS
Single-ended input
Normal operation
Differential input
differential input
0.1% THD+N
1% THD+N
MIN
15
1
TBD
TBD
TBD
TBD
TBD
PP, January 2010, Rev 3.0
+18
TYP
-57
-82
-80
-83
-81
+/-1
8.5
7.5
4.5
1.5
+6
12
95
80
-6
70
33
35
1
9
6
3
0
4
MAX
1.0
1.0
2
Pre-Production
Vrms
UNIT
mW
mV
mA
kΩ
pF
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
nF
Ω
Ω
8