WM8903LGEFK/RV Wolfson Microelectronics, WM8903LGEFK/RV Datasheet - Page 28

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WM8903LGEFK/RV

Manufacturer Part Number
WM8903LGEFK/RV
Description
Audio CODECs ULTRA LOW PWR HI FI CODEC
Manufacturer
Wolfson Microelectronics
Datasheets

Specifications of WM8903LGEFK/RV

Audio Codec Type
Stereo Codec
No. Of Adcs
2
No. Of Dacs
2
No. Of Input Channels
6
No. Of Output Channels
8
Adc / Dac Resolution
24bit
Sampling Rate
96kHz
Operating Temperature Range
-40°C To +85°C
Rohs Compliant
Yes
Adcs / Dacs Signal To Noise Ratio
96dB
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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WM8903
w
SINGLE-ENDED INPUT
The Single-Ended PGA configuration is illustrated in Figure 23 for the Left channel. The available
gain in this mode is from -1.57dB to +28.5dB in non-linear steps. The input impedance is 12kΩ. The
input to the ADC is phase inverted with respect to the selected input pin. Different input pins can be
selected in the same mode by altering the L_IP_SEL_N field.
The equivalent configuration is also available on the Right channel; this can be selected
independently of the Left channel mode.
Figure 23 Single Ended Mode (Inverting)
DIFFERENTIAL LINE INPUT
The Differential Line PGA configuration is illustrated in Figure 24 for the Left channel. The available
gain in this mode is from -1.57dB to +28.5dB in non-linear steps. The input impedance is 12kΩ. The
input to the ADC is phase inverted with respect to the input pin selected by L_IP_SEL_N. The non-
inverting input pin is selected by L_IP_SEL_P.
The equivalent configuration is also available on the Right channel; this can be selected
independently of the Left channel mode.
Figure 24 Differential Line Mode (Inverting)
IN1L
IN2L
IN3L
MUX
MUX
L_MODE = 01
L_IP_SEL_P = 01
L_MODE = 01
L_IP_SEL_N = 00
LIN_VOL
(-1.57dB to +28.5dB, non-linear steps)
LIN_VOL
(-1.57dB to +28.5dB, non-linear steps)
+
+
-
-
PP, Rev 3.1, August 2009
-
+
ADC L
BYPASSL
Pre-Production
28

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