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WM8960 Datasheet(PDF) 6 Page - Wolfson Microelectronics plc

Part No. WM8960
Description  Stereo CODEC with 1W Stereo Class D Speaker Drivers and Headphone Drivers for Portable Audio Applications
Download  88 Pages
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Maker  WOLFSON [Wolfson Microelectronics plc]
Homepage  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8960 Datasheet(HTML) 6 Page - Wolfson Microelectronics plc

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WM8960
Preliminary Technical Data
w
PTD, September 2006, Rev 2.0
6
ELECTRICAL CHARACTERISTICS
Test Conditions
DCVDD = 1.8V, DBVDD = 3.3V, AVDD = SPKVDD1 = SPKVDD2 = 3.3V, TA = +25
oC, 1kHz signal, fs = 48kHz, PGA gain =
0dB, 24-bit audio data unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Analogue Inputs (LINPUT1, RINPUT1, LINPUT2, LINPUT3, RINPUT2, RINPUT3)
L/RINPUT1
Single-ended or
differential MIC
1.0
0
Vrms
dBV
L/RINPUT2/3
Differential MIC
0.5
-6
Vrms
dBV
L/RINPUT2/3
Boost or bypass path
0.5
-6
Vrms
dBV
Full-scale Input Signal Level –
note this changes in proportion
to AVDD
VINFS
L/RINPUT3
Boost + bypass path
0.5
-6
Vrms
dBV
Mic PGA equivalent input noise
0 to 20kHz,
+30dB gain
150
uV
RINPUT1
+30dB PGA gain
Differential or single-
ended MIC configuration
3
k
RINPUT1
0dB PGA gain
Differential or single-
ended MIC configuration
49
k
RINPUT1
-17.25dB PGA gain
Differential or single-
ended MIC configuration
87
k
RINPUT2,
RINPUT3
(Constant for all gains)
Differential MIC
configuration
85
k
RINPUT2,
RINPUT3
Max boost gain
L/RINPUT2/3 to boost
7.5
k
RINPUT2,
RINPUT3
0dB boost gain
L/RINPUT2/3 to boost
13
k
RINPUT2,
RINPUT3
Min boost gain
L/RINPUT2/3 to boost
37
k
RINPUT3
Max bypass gain
L/RINPUT2/3 to bypass
20
k
Input resistance
(Note that input boost and
bypass path resistances will be
seen in parallel with PGA input
resistance when these paths are
enabled)
RINPUT3
Min bypass gain
L/RINPUT2/3 to bypass
224
k
Input capacitance
10
pF
MIC Programmable Gain Amplifier (PGA)
Programmable Gain Min
-17.25
dB
Programmable Gain Max
30
dB
Programmable Gain Step Size
Guaranteed monotonic
0.75
dB
Mute Attenuation
LMIC2B = 0 and
RMIC2B = 0
90
dB
Selectable Input Gain Boost
Input from PGA
0, 13, 20,
29, MUTE
dB
Gain Boost Steps
Input from L/RINPUT2 or
L/RINPUT3
-12, -9, -6, -3
0, 3, 6,
MUTE
dB


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