WM8731SEDS/V Wolfson Microelectronics, WM8731SEDS/V Datasheet - Page 11

• Manufacturer Part Number: WM8731SEDS/V
• Description: Audio CODECs Stereo Codec with H/P
• Manufacturer: Wolfson Microelectronics

Specifications of WM8731SEDS/V

• Interface Type: Serial (2-Wire or 3-Wire), I2S
• Resolution: 24 bit
• Operating Supply Voltage: 2.7 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SSOP-28
• Minimum Operating Temperature: - 40 C
• Number Of Channels: 2 ADC / 2 DAC
• Snr: 90 dB
• Thd Plus Noise: - 84 dB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8731 / WM8731L
ELECTRICAL CHARACTERISTICS – WM8731L
w
Signal to Noise Ratio
(Note 1,3)
Dynamic Range (Note 3)
Total Harmonic Distortion
Power Supply Rejection Ratio
ADC channel separation
Programmable Gain
Programmable Gain Step Size
Mute attenuation
Input Resistance
Input Capacitance
Test Conditions
AVDD, HPVDD, DBVDD = 1.8V, AGND = 0V, DCVDD = 1.5V, DGND = 0V, T
256fs unless 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 (VMID)
Potential divider resistance
Line Input to ADC
Input Signal Level (0dB)
SYMBOL
V
PSRR
R
C
V
R
SNR
THD
V
V
V
INLINE
V
V
DR
INLINE
INLINE
V
V
VMID
VMID
OH
OL
OL
IL
IH
th
IH
Guaranteed Monotonic
A-weighted, -60dB full
A-weighted, 0dB gain
A-weighted, 0dB gain
-1dB input, 0dB gain
1kHz, 100mVpp
0dB, 1kHz input
20Hz to 20kHz,
Rsource < 50Ω
CONDITIONS
@ fs = 48kHz
@ fs = 96kHz
scale input
1kHz input
1kHz input
12dB gain
100mVpp
0dB gain
TEST
0.7 x DBVDD
0.9 x DBVDD
A
-34.5
MIN
20k
10k
= +25
75
80
o
C, Slave Mode, fs = 48kHz, XTI/MCLK =
AVDD/3.3
AVDD/2
TYP
50k
30k
15k
0.9
0.3
0.6
1.0
-76
1.5
85
85
88
50
45
90
80
10
0
0.3 x DBVDD
DBVDD
PD, Rev 4.8, April 2009
0.10 x
MAX
+12
-60
Production Data
Vrms
UNIT
dB
dB
dB
dB
dB
dB
dB
dB
pF
V
V
V
V
V
V
V
V
Ω
Ω
11