WM8608 Просмотр технического описания (PDF) - Wolfson Microelectronics plc
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WM8608 Datasheet PDF : 54 Pages
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WM8608
ELECTRICAL CHARACTERISTICS
Test Conditions
AVDD, BVDD, DVDD = 2.7 to 3.3V, AGND, DGND, BGND = 0V, TA = -20 to +85oC, fs = 44.1kHz/48kHz, MCLK = 256fs unless
stated.
PARAMETER
SYMBOL TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input capacitance
Ci
3
4
pF
Input leakage
Ileak
±0.1
±0.5
µA
Oscillator
Input XIN LOW level
Input XIN HIGH level
VXIL
VXIH
0
0.44
V
0.77
AVDD
V
Input XIN capacitance
CXI
4
5
pF
Input XIN leakage
Output XOP LOW
Output XOP HIGH
IXleak
0.10
0.11
0.13
mA
VXOL
15pF load capacitors
0.1
0.4
0.5
V
VXOH
15pF load capacitors
1.2
1.3
1.4
V
Digital Logic Levels (CMOS Levels)
Input LOW level
VIL
0.3 x DVDD
V
Input HIGH level
VIH
Pull-up/pull-down resistance
0.7 x DVDD
V
100
200
400
kΩ
Output LOW
VOL
Output HIGH
VOH
Digital Logic Levels (LVDS Levels)
IOL=+1mA
IOL=-1mA
0.9 x DVDD
0.1 x DVDD
V
V
Output differential voltage
Offset voltage
Termination load
VOD
RT=100Ω
200
350
500
mV
VOS
RT=100Ω
0.95
1.25
1.4
V
RT
20pF load
100
Ω
PCM to PWM converter
Digital SNR
FL, FR, FC, SL, SR, RC
105
dB
Typical SNR with output stage
FL, FR, FC, SL, SR, RC
100
dB
(A-weighted)
Typical Dynamic Range with
FL, FR, FC, SL, SR, RC
100
dB
output stage
Digital THD+N at 0dBfs
FL, FR, FC, SL, SR, RC
0.001
%
Typical THD+N at 30Watt with
FL, FR, FC, SL, SR, RC
0.1
%
output stage
Typical THD+N at 1Watt with
FL, FR, FC, SL, SR, RC
0.01
%
typical output stage
Typical IMD (CCIF – 19/20kHz)
FL, FR, FC, SL, SR, RC
-70
dBFS
Typical IMD (SMPTE –
60Hz/7kHz)
FL, FR, FC, SL, SR, RC
-70
dBFS
PCM to PWM converter
Digital SNR
Typical SNR with output stage
Subwoofer5
Subwoofer5
105
dB
100
dB
(A-weighted)
Typical Dynamic Range with
output stage
Digital THD+N at 0dBfs
Subwoofer5
Subwoofer5
100
dB
0.001
%
Typical THD+N at 30Watt with
output stage
Typical THD+N at 1Watt with
typical output stage
Typical IMD (CCIF – 19/20kHz)
Typical IMD (SMPTE –
60Hz/7kHz)
Subwoofer5
Subwoofer5
Subwoofer5
Subwoofer5
0.1
%
0.01
%
-70
dBFS
-70
dBFS
w
PP Rev 1.5 March 2004
7
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