WM8951L_07 WOLFSON [Wolfson Microelectronics plc], WM8951L_07 Datasheet - Page 6

• Manufacturer Part Number: WM8951L_07
• Description: Stereo ADC with Microphone Input and Clock Generator
• Manufacturer: WOLFSON [Wolfson Microelectronics plc]

WM8951L
ELECTRICAL CHARACTERISTICS
w
Test Conditions
AVDD1, AVDD2, DBVDD = 3.3V, AGND1, AGND2 = 0V, DCVDD = 1.5V, DGND = 0V, T
XTI/MCLK = 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)
Signal to Noise Ratio
(Note 1,3)
Dynamic Range (Note 3)
Total Harmonic Distortion
Signal to Noise Ratio
(Note 1,3)
Power Supply Rejection Ratio
ADC channel separation
Programmable Gain
Programmable Gain Step Size
Mute attenuation
Input Resistance
Input Capacitance
SYMBOL
V
PSRR
R
C
V
R
SNR
SNR
THD
V
V
V
INLINE
DR
V
V
INLINE
INLINE
V
V
VMID
VMID
OH
OL
OL
IL
IH
th
IH
Guaranteed Monotonic
AVDD1/2= DBVDD=1.8V
AVDD1/2= DBVDD=1.8V
AVDD1/2= DBVDD=1.8V
AVDD1/2= DBVDD=1.8V
AVDD1/2= DBVDD=1.8V
A-weighted, -60dB full
A-weighted, 0dB gain
A-weighted, 0dB gain
A-weighted, 0dB gain
-1dB input, 0dB gain
1kHz, 100mVpp
0dB, 1kHz input
20Hz to 20kHz,
Rsource < 50Ω
CONDITIONS
DCVDD=1.5V
DCVDD=1.5V
DCVDD=1.5V
DCVDD=1.5V
DCVDD=1.5V
@ fs = 48kHz
@ fs = 96kHz
@ fs = 48kHz
scale input
1kHz input
1kHz input
12dB gain
100mVpp
0dB gain
TEST
0.7 x DBVDD
0.9 x DBVDD
-34.5
MIN
20k
10k
75
80
75
A
0.5xAVDD
AVDD/3.3
= +25
TYP
50k
30k
15k
0.9
0.3
0.6
1.0
-76
1.5
85
85
88
85
50
45
90
80
10
0
o
C, Slave Mode, fs = 48kHz,
PD Rev 4.1 December 2007
0.3 x DBVDD
DBVDD
0.10 x
MAX
+12
-60
Production Data
Vrms
UNIT
dB
dB
dB
dB
dB
dB
dB
dB
dB
pF
Ω
Ω
V
V
V
V
V
V
V
V
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