WM8983GEFL/RV Wolfson Microelectronics, WM8983GEFL/RV Datasheet - Page 13

• Manufacturer Part Number: WM8983GEFL/RV
• Description: Audio CODECs Mbl Multimedia CODEC w/ 1W Speaker Driver
• Manufacturer: Wolfson Microelectronics

Specifications of WM8983GEFL/RV

• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-32
• Minimum Operating Temperature: - 25 C

Production Data
TERMINOLOGY
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Test Conditions
DCVDD=1.8V, AVDD1=AVDD2=DBVDD=3.3V, T
PARAMETER
Digital Input / Output
Input HIGH Level
Input LOW Level
Output HIGH Level
Output LOW Level
Input Capacitance
example, when AVDD = 3.3V, 0dBFS = 1V
with a linear relationship to AVDD.
reduced.
device output with no signal applied. This ratio is also called idle channel noise. (No Auto-zero or Automute function is
employed in achieving these results).
first seven odd harmonics of the output signal. To calculate the ratio, the fundamental frequency of the output signal
is notched out and an RMS value of the next seven harmonics is calculated.
signal and the sum of the harmonics, wide-band noise and interference on the output signal. To calculate the ratio,
the fundamental frequency of the output signal is notched out and an RMS value of the total harmonics, wide-band
noise and interference is calculated.
Full-scale input and output levels scale in relation to AVDD or AVDD2 depending upon the input or output used. For
Input level to RIP and LIP in differential configurations is limited to a maximum of -3dB or performance will be
Signal-to-noise ratio (dBFS) – SNR is the difference in level between a reference full scale output signal and the
Total Harmonic Distortion (dBFS) – THD is the difference in level between a reference full scale output signal and the
Total Harmonic Distortion plus Noise (dBFS) – THD+N is the difference in level between a reference full scale output
Channel Separation (dB) – Also known as Cross-Talk. This is a measure of the amount one channel is isolated from
the other. Normally measured by sending a full scale signal down one channel and measuring the other.
The maximum output voltage can be limited by the speaker power supply. If SPKBOOST is set then AVDD2 should
be 1.5xAVDD to prevent clipping taking place in the output stage (when PGA gains are set to 0dB).
SYMBOL
V
V
V
V
OH
OL
IH
IL
rms
A
(0dBV). When AVDD < 3.3V the absolute level of 0dBFS will decrease
= +25
o
TEST CONDITIONS
C, 1kHz signal, fs = 48kHz, 24-bit audio data unless otherwise stated.
All digital pins
I
I
OH
OL
=1mA
=1mA
0.7×DBV
0.9×DBV
MIN
DD
DD
TYP
10
PD Rev 4.0 November 2006
0.3×DBVDD
0.1xDBVDD
MAX
WM8983
UNIT
pF
V
V
V
V
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