CS5471 Просмотр технического описания (PDF) - Cirrus Logic
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CS5471 Datasheet PDF : 14 Pages
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CS5471
ANALOG CHARACTERISTICS (Continued)
Parameter
Symbol Min Typ Max Unit
Reference Output
Output Voltage
REFOUT 1.15
-
1.25
V
Temperature Coefficient
-
20
50 ppm/°C
Load Regulation
(Output Current 1µA Source or Sink)
∆VR
-
6
10
mV
Power Supply Rejection
PSRR
60
-
-
dB
Reference Input
Input Voltage Range
VREF+
1.15 1.2 1.25
V
Input Capacitance
-
-
10
pF
Input CVF Current
-
-
1
µA
Power Supplies
Power Supply Currents
IA+ PSCA
-
-
1.5 mA
ID+ PSCD
-
-
2.5 mA
Power Consumption
(Note 4)
PC
-
-
15 mW
Power Supply Rejection
(see Note 5)
(DC, 50, 60 Hz) PSRR
60
-
-
dB
Notes: 4. All outputs unloaded. All inputs CMOS level.
5. Definition for PSRR: VREFIN tied to VREFOUT, VA+ = VD+ = 3V, AGND = DGND = 0V, VA- = -2V
(using charge-pump circuit with CPD). In addition, a 106.07 mV rms (60 Hz) sinewave is imposed onto
the VA+ and VD+ pins. The “+” and “-” input pins of both input channels are shorted to VA-.
Instantaneous digital output data words are then collected for the channel under test. From these data
samples, the rms value (standard deviation) of the digital sinusoidal output signal is calculated, and this
rms value is converted into the rms value of the sinusoidal voltage (measured in mV) that would need
to be applied at the channel’s inputs, in order to cause the same digital sinusoidal output. This voltage
is then defined as Veq. PSRR is then (in dB)
PSRR
=
20
⋅
log
1---0----6---.-0---7-
Veq
DIGITAL CHARACTERISTICS (TA = -40 °C to +85 °C; +2.7V < VA+ < +3.5V; +2.7V < VD+ < +3.5V;
VA- = -2 V ±10%; AGND, DGND = 0.0 V) (See Note 6)
Parameter
High-Level Input Voltage
Low-Level Input Voltage
High-Level Output Voltage
Low-Level Output Voltage
Input Leakage Current
3-State Leakage Current
Digital Output Pin Capacitance
Symbol
Min
Typ
Iout = -5.0 mA
VIH
VIL
VOH
0.6 VD+
-
0.0
-
(VD+) - 1.0 -
Iout = 5.0 mA VOL
-
-
(Note 7)
Iin
IOZ
Cout
-
±1
-
-
-
9
Max
VD+
0.8
-
0.4
±10
±10
-
Unit
V
V
V
V
µA
µA
pF
Notes: 6. All measurements performed under static conditions.
7. For OWRS and GAIN pins, input leakage current is 30 µA (Max).
4
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