WM9707 查看數據表（PDF） - Wolfson Microelectronics plc
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WM9707 Datasheet PDF : 30 Pages
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Advanced Information
Recommended Operating Conditions
PARAMETER
Digital supply range
Analogue supply range
Digital ground
Analogue ground
Difference DVSS to AVSS
Analogue supply current
Digital supply current
Standby supply current (all PRs set)
Analogue supply current
Digital supply current
Standby supply current (all PRs set)
SYMBOL
DVDD1, DVDD2
AVDD1, AVDD2
DVSS1, DVSS2
AVSS1, AVSS2
TEST CONDITIONS
DVDD, AVDD = 5V
DVDD, AVDD = 5V
DVDD, AVDD = 5V
DVDD, AVDD = 3.3V
DVDD, AVDD = 3.3V
DVDD, AVDD = 3.3V
MIN
-10%
-10%
-0.3
TYP
3.3 to 5.0
3.3 to 5.0
0
0
0
30
30
10
20
20
10
WM9707
MAX
+10%
+10%
+0.3
UNIT
V
V
V
V
V
mA
mA
uA
mA
mA
uA
ELECTRICAL CHARACTERISTICS
Test Characteristics:
AVSS = 5V, GND = 0V …………..TA = 0oC to +70oC, unless otherwise stated
DVDD = 3.3V, GND = 0V …………..TA = 0oC to +70oC, unless otherwise stated
PARAMETER
SYMBOL TEST CONDITIONS
MIN
TYP
Digital Logic Levels (DVDD = 3.3 or 5.0V)
Input LOW level
VIL
AVSS -0.3
Input HIGH level
VIH
2.2
Output LOW
VOL
Output HIGH
VOH
0.90 x VDD
Analogue I/O Levels (Input Signals on any inputs, Outputs on LINEOUT L, R and MONOOUT)
Input level
Minimum input
impedance = 10k
AVSS
-100mV
Output level
Into 10kohm load
AVSS Near rail to
+300mV
rail
Reference Levels
Reference input/output
CAP2
2/5 AVDD AVDD/2
CAP2 impedance
75
Mixer reference
VREF
Buffered
CAP2
MIC reference
VREFOUT
Buffered
CAP2
MIDBUFF current sink
(pins VREF and VREFOUT)
AVDD = 5V
-5
-15
MIDBUFF current source
(pins VREF and VREFOUT)
AVDD = 5V
5
15
MIDBUFF current source
(pins VREF and VREFOUT)
AVDD = 3.3V
10
MIDBUFF current sink
(pins VREF and VREFOUT)
AVDD = 3.3V
-10
MAX
0.8
AVDD +0.3
0.10 x VDD
AVDD
+100mV
AVDD
-300mV
3/5 AVDD
UNIT
V
V
V
V
V
V
V
kohms
V
V
mA
mA
mA
mA
WOLFSON MICROELECTRONICS LTD
AI Rev 2.2 January 2001
3
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