WM8734 ETC-unknow, WM8734 Datasheet - Page 5

• Manufacturer Part Number: WM8734
• Description: Stereo Audio Codec
• Manufacturer: ETC-unknow

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