參數(shù)資料
型號(hào)： WM8756EFT
廠商： Wolfson Microelectronics
英文描述： 192KHZ SIX CHANNEL SACD COMPATIBLE AUDIO DAC
中文描述： 192kHz的六聲道SACD的兼容的音頻數(shù)模轉(zhuǎn)換器
文件頁(yè)數(shù)： 5/39頁(yè)
文件大?。?/td> 330K
代理商： WM8756EFT
WM8756
Advance Information
AI Rev 1.3 October 2001
5
DC ELECTRICAL CHARACTERISTICS
PARAMETER
Digital supply range
Analogue supply range
Ground
Difference of DGND to AGND
Difference of GR to AGND
Analogue supply current
Digital supply current
Analogue supply current
Digital supply current
Analogue supply current
Digital supply current
SYMBOL
DVDD
AVDD
AGND, DGND
TEST CONDITIONS
MIN
3.0
3.0
TYP
MAX
5.5
5.5
UNIT
V
V
V
V
V
mA
mA
mA
mA
mA
mA
0
0
0
-0.3
-0.3
+0.3
+0.3
AVDD = 5V
DVDD = 5V
AVDD = 3.3V
DVDD = 3.3V
Power down, stop clock
Power down, stop clock
58
22
57
11
0.4
0.09
Table 2 DC electrical characteristics
Note
:
1. AVDD must be equal or greater than DVDD. DVDD = 3V, AVDD = 5V is allowed.
2. Where used AVDD represents AVDD1 = AVDD2, AGND represents AGND1 = AGND2 = AGND3 and GR represents
GR0 = GR1 = GR2.
AC ELECTRICAL CHARACTERISTICS
Test Conditions
AVDD = DVDD = 3V, AGND = 0V = DGND = 0V, T
A
= +25
o
C, fs = 48kHz, SCKI = 256fs unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
Digital Logic Levels (TTL Levels)
Input LOW level
V
IL
Input HIGH level
V
IH
Output LOW
V
OL
Output HIGH
V
OH
Analogue Reference Levels
Reference voltage
V
CAP
MIN
TYP
MAX
UNIT
0.8
V
V
V
V
2.0
I
OL
= 2mA
I
OH
= 2mA
0.4
2.4
AVDD2 –
GR2/2
25K
V
Potential divider resistance
DAC Output (Load
= 10K ohms. 50pF)
0dBFs Full scale output voltage
R
CAP
Ohms
At DAC outputs
1.1 x
AVDD1/5
106
V
rms
SNR (Note 1,2,3)
A-weighted,
@ fs = 48KHz
A-weighted
@ fs = 96KHz
A-weighted
@ fs = 192KHz
A-weighted,
@ fs = 48KHz
AVDD=DVDD=3.3V
A-weighted
@ fs = 96KHz
AVDD=DVDD=3.3V
100
dB
SNR (Note 1,2,3)
98
105
dB
SNR (Note 1,2,3)
105
dB
SNR (Note 1,2,3)
103
dB
SNR (Note 1,2,3)
103
dB
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