WM8816 Datasheet, PDF (3/12 Pages) Wolfson Microelectronics plc – Stereo Digital Volume Control

Advanced Information
WM8816
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are stress ratings only. Permanent damage to the device may be caused by continuously operating
at or beyond these limits. Device functional operating limits and guaranteed performance specifications are given under Electrical
Characteristics at the test conditions specified.
ESD Sensitive Device. This device is manufactured on a CMOS process. It is therefore susceptible to damage
from excessive static voltages. To optimise the distortion and noise performance of pins 3, 4, 13 and 14, the
on-chip ESD protection circuitry has been restricted, and consequently only achieves 300V when characterised
to the Human Body Model. Proper ESD precautions must be taken during handling and storage of this device.
As per JEDEC specification JESD22-A112-A, this product requires specific storage conditions prior to surface mount assembly. It
has been classified as having a Moisture Sensitivity Level of 3 and is therefore supplied in vacuum-sealed moisture barrier bags.
CONDITION
Input signal voltage
Positive supply voltage (AVDD to AGND, DVDD to DGND)
Input voltage (all other pins)
Operating temperature
Storage temperature
MIN
-20V
-0.5V
-0.5V
-40°C
-55°C
MAX
+20V
6V
AVDD + 0.5V
85°C
125°C
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Input signal voltage
Positive supply voltage
Negative supply voltage
Input signal grounds
Operating temperature
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
AVDD, DVDD
AGND, DGND
LGND, RGND
-18
+18
V
4.5
5
5.5
V
0
V
0
V
-20
60
60
°C
ELECTRICAL CHARACTERISTICS
TEST CONDITIONS
AVDD = 5.0V, AGND = 0V, TA = 25°C, unless otherwise stated.
PARAMETER
SYMBOL TEST CONDITIONS
MIN
TYP
MAX
UNIT
Analogue Inputs / Outputs
Input resistance
RIN
For any gain
7
10
kΩ
Input capacitance
Input offset voltage
CIN
Voffset
For any gain
External OP275
opamp, gain = 1
2
pF
1
mV
Supply current
Power supply rejection ratio
(Note 1)
IDD
PSRR
From AVDD / AGND
From AVDD
2.5
5
mA
80
dB
Gain Control
Gain range
G
-111.5
+15.5
dB
Gain step size
D
0.5
dB
Gain error (Note 1)
DE
Lowest gains
guaranteed by
design, not tested in
production.
0.5
dB
Gain match error (Note 1)
ME
Between channels
0.2
dB
Mute attenuation
MATT
113
dB
WOLFSON MICROELECTRONICS LTD
AI Rev 1.1 September 2000
3