WM8595 Datasheet, PDF (8/82 Pages) Wolfson Microelectronics plc – 24-bit 192kHz 2Vrms Multi-Channel CODEC

WM8595
Production Data
ELECTRICAL CHARACTERISTICS
Test Conditions
AVDD2=9V, AVDD1=DVDD=3.3V, AGND1=AGND2=0V, DGND=0V, TA=+25˚C, 1kHz signal, fs=48kHz, MCLK=256fs unless otherwise stated
PARAMETER
SYMBOL TEST CONDITIONS
MIN
TYP
MAX
Digital logic levels
Input low level
VIL
Input high level
VIH
Output low level
VOL
Output high level
VOH
Digital input leakage current
0.3xDVDD
0.7xDVDD
0.1 x DVDD
0.9 x DVDD
±0.2
Digital input capacitance
5
Analogue Reference Levels
ADC Midrail Voltage
VMID1C
AVDD1/2
ADC Buffered Positive
Reference Voltage
VREF1C
VMID1C
DAC Midrail Voltage
VMID2C
VREF2VDD/2
Potential divider resistance
AVDD1 to VMID1C
100
VMID1C to AGND1
VREF2VDD to VMID2C
19
VMID2C to VREF2GND
(Note 2)
VMID_SEL[1:0] = 01
Analogue Line Outputs
Output signal level (0dB)
-10%
2.0x
AVDD1/3.3
+10%
Maximum capacitance load
11
Minimum resistance load
1
Analogue Inputs
Input signal level (0dB)
2.0 x
AVDD1/3.3
Input impedance
48
Input capacitance
5
DAC Performance (DAC1 to LINEOUT1L/R, DAC2 to LINEOUT2L/R)
Signal to Noise Ratio^1,5
SNR
A-weighted
90
100
@ fs = 48kHz
A-weighted
100
@ fs = 96kHz
A-weighted
100
Dynamic Range^2,5
Total Harmonic Distortion^3,5
@ fs = 192kHz
DNR
A-weighted, -60dB full
90
scale input
THD
1kHz, 0dBFS
100
-87
-80
@ fs = 48kHz
1kHz, 0dBFS
-86
@ fs = 96kHz
1kHz, 0dBFS
-85
Channel Separation^4,5
@ fs = 192kHz
1kHz
110
Channel Level Matching
0.1
Channel Phase Deviation
1kHz
0.01
Power supply rejection ratio
PSRR
1kHz, 100mVpp
50
20Hz to 20kHz,
45
100mVpp
UNIT
V
V
V
V
μA
pF
V
V
V
kΩ
kΩ
Vrms
nF
kΩ
Vrms
kΩ
pF
dB
dB
dB
dB
dB
dB
dB
dB
dB
Degree
dB
dB
w
PD, Rev 4.2, January 2011
8