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CS42L51 Datasheet(PDF) 24 Page - Cirrus Logic

Part # CS42L51
Description  Low Power, Stereo CODEC with Headphone Amp
PDF  88 Pages
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Manufacturer  CIRRUS [Cirrus Logic]
Direct Link  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS42L51 Datasheet(HTML) 24 Page - Cirrus Logic

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24
DS679F1
CS42L51
DC ELECTRICAL CHARACTERISTICS
(AGND = 0 V; all voltages with respect to ground.)
22. The DC current draw represents the allowed current draw from the VQ pin due to typical leakage
through electrolytic de-coupling capacitors.
23. Valid with the recommended capacitor values on DAC_FILT+, ADC_FILT+ and VQ. Increasing the ca-
pacitance will also increase the PSRR.
DIGITAL INTERFACE SPECIFICATIONS & CHARACTERISTICS
24. See “Digital I/O Pin Characteristics” on page 9 for serial and control port power rails.
Parameters
Min
Typ
Max
Units
VQ Characteristics
Nominal Voltage
Output Impedance
DC Current Source/Sink (Note 22)
-
-
-
0.5•VA
23
-
-
-
10
V
k
Ω
µA
DAC_FILT+ Nominal Voltage
ADC_FILT+ Nominal Voltage
-
-
VA
VA
-
-
V
V
VSS_HP Characteristics
Nominal Voltage
DC Current Source
-
-
-0.8•(VA_HP)
-
10
V
µA
MIC BIAS Characteristics
Nominal Voltage
MICBIAS_LVL[1:0] = 00
MICBIAS_LVL[1:0] = 01
MICBIAS_LVL[1:0] = 10
MICBIAS_LVL[1:0] = 11
DC Current Source
Power Supply Rejection Ratio (PSRR)
1 kHz
-
-
-
-
-
-
0.8•VA
0.7•VA
0.6•VA
0.5•VA
-
50
-
-
-
-
1
-
V
V
V
V
mA
dB
Power Supply Rejection Ratio (PSRR) (Note 23)
1 kHz
-60-
dB
Parameters (Note 24)
Symbol
Min
Max
Units
Input Leakage Current
Iin
-±10
µA
Input Capacitance
-10
pF
1.8 V - 3.3 V Logic
High-Level Output Voltage (IOH = -100 µA)
VOH
VL - 0.2
-
V
Low-Level Output Voltage (IOL = 100 µA)
VOL
-0.2
V
High-Level Input Voltage
VIH
0.68•VL
-
V
Low-Level Input Voltage
VIL
-
0.32•VL
V



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