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CS5462
ANALOG CHARACTERISTICS (Continued)
Parameter
Symbol
Min
Typ
Max
Unit
Dynamic Characteristics
High Pass Filter Pole Frequency
-3 dB
-
0.5
-
Hz
Power Supplies
Power Supply Currents
Power Consumption
(Note 3)
I A+
I D+ (VD+ = 5 V)
I D+ (VD+ = 3.3 V)
(VD+ = 5 V)
(VD+ = 3.3 V)
PSCA
PSCD
PSCD
PC
-
-
-
-
-
1.3
2.9
1.7
21
11.6
-
-
-
25
-
mA
mA
mA
mW
mW
Power Supply Rejection Ratio (50, 60 Hz)
-
-
(Note 4) Voltage Channel (Gain = 10)
Current Channel (Gain = 10)
(Gain = 50)
PSRR
PSRR
PSRR
48
75
56
-
-
-
-
-
-
dB
dB
dB
PSRR = 20 ? log ? ------------------ ?
Notes: 3. All outputs unloaded. All inputs CMOS level.
4. Definition for PSRR: VREFIN tied to VREFOUT, VA+ = VD+ = 5 V, a 150 mV zero-to-peak sine wave (frequency
= 60 Hz) is imposed onto the +5 V supply voltage at VA+ and VD+ pins. The “+” and “-” input pins of both input
channels are shorted to VA-. Then the CS5462 is put into an internal test mode and digital output data is collected
for the channel under test. The zero-peak value of the digital sinusoidal output signal is determined, and this value
is converted into the zero-peak value of the sinusoidal voltage 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):
? 0.150V ?
? V eq ?
VREFOUT REFERENCE OUTPUT VOLTAGE
Parameter
Symbol
Min
Typ
Max
Unit
Reference Output
Output Voltage
VREFOUT Temperature Coefficient
REFOUT
TC VREF
+2.4
25
+2.6
60
V
ppm/°C
Load Regulation
(Output Current 1 ? A Source or Sink)
? V R
6
10
mV
Reference Input
Input Voltage Range
Input Capacitance
Input CVF Current
VREFIN
+2.4
-
-
+2.5
4
25
+2.6
-
-
V
pF
nA
Notes: 5. The voltage at VREFOUT is measured across the temperature range. From these measurements the
following formula is used to calculate the VREFOUT Temperature Coefficient:.
( (VREFOUT VREFOUT VREFOUT
TC VREF =
MAX -
AVG
MIN )
( T
AMAX
1
- T AMIN
( 1.0 x 10
6
6
DS547F1
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CS5463-ISZ/D 制造商:Cirrus Logic 功能描述:
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