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WM8734 Datasheet(PDF) 5 Page - List of Unclassifed Manufacturers

Part # WM8734
Description  STEREO AUDIO CODEC
PDF  42 Pages
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Manufacturer  ETC [List of Unclassifed Manufacturers]
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WM8734 Datasheet(HTML) 5 Page - List of Unclassifed Manufacturers

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WM8734
Advanced Information
w
AI Rev 2.2 November 2001
5
ELECTRICAL CHARACTERISTICS
Test Conditions
AVDD, DBVDD = 3.3V, AGND = 0V, DCVDD = 3.3V, DGND = 0V, TA = +25
oC, Slave Mode, fs = 48kHz, MCLK = 256fs unless
otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Digital Logic Levels (CMOS Levels)
Input LOW level
VIL
0.3 x DBVDD
V
Input HIGH level
VIH
0.7 x DBVDD
V
Output LOW
VOL
0.10 x
DBVDD
V
Output HIGH
VOH
0.9 x DBVDD
V
Power On Reset Threshold (DCVDD)
DCVDD Threshold On -> Off
Vth
0.9
V
Hysteresis
VIH
0.3
V
DCVDD Threshold Off -> On
VOL
0.6
V
Analogue Reference Levels
Reference voltage
VVMID
AVDD/2
V
Potential divider resistance
RVMID
50k
Ohms
Line Input to ADC
Input Signal Level (0dB)
VINLINE
1.0
AVDD/3.3
Vrms
SNR (Note 1,3)
A-weighted, 0dB gain
@ fs = 48kHz
85
90
dB
SNR (Note 1,3)
A-weighted, 0dB gain
@ fs = 96kHz
90
dB
SNR (Note 1,3)
A-weighted, 0dB gain
@ fs = 48KHz, AVDD =
2.7V
88
dB
Dynamic Range (Note 3)
DNR
A-weighted, -60dB full
scale input
85
90
dB
THD
-1dB input, 0dB gain
-84
-74
dB
Power Supply Rejection Ratio
PSSR
1kHz 100mVpp
50
dB
20Hz to 20kHz
100mVpp
45
dB
ADC channel separation
1kHz input
90
dB
Programmable Gain Maximum
Programmable Gain Minimum
1kHz input
Rsource < 50 Ohms
+12
-34.5
dB
Programmable Gain Step Size
Guaranteed Monotonic
1.5
dB
Mute attenuation
0dB, 1kHz input
80
dB
0dB gain
20k
30k
Ohms
Input Resistance
RINLINE
12dB gain
10k
15k
Ohms
Input Capacitance
CINLINE
10
pF



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