CS6420-CS datasheet(5/52 Pages) CIRRUS

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CS6420

DS205PP2

ANALOG TRANSMISSION CHARACTERISTICS (T

A = 25°C, DVDD = AVDD = 5V, fXTAL =

20.480 MHz, RVol=TVol=RGain=TGain= 0 dB, HD=TSD=RSD=1, analog inputs and ouputs loaded with resistors

and capacitors as shown in the typical connection diagram, Figure 2)

Parameter

Symbol

Min

Typ

Max

Units

Idle Channel Noise

A-weighted (0-20 kHz)

(Inputs grounded

C-Message weighted (0-4 kHz)

through a capacitor)

Psophometrically weighted (0-4 kHz)

-67

-69

dBV

dBrnC0

dBm0p

Signal-to-Noise Ratio

A-weighted (0-20 kHz)

(Full Scale, 1 kHz

C-Message weighted (0-4 kHz)

sine wave input)

Psophometrically weighted (0-4 kHz)

SNR

-67

dBrnC0

dBm0p

Total Harmonic Distortion

C-Message Weighted (0-4 kHz)

THD

0.1

Programmable Gain

RGain/TGain = 00

RGain/TGain = 01

RGain/TGain = 10

RGain/TGain = 11

9.5

Volume Control Stepsize (TVol/RVol)

ADC Full-scale Voltage Input

0.9

1.0

Vrms

DAC Full-scale Voltage Output

1.0

1.1

Vrms

ADC Noise Floor

C-Message Weighted (0-4 kHz)

-80

dBV

DAC Noise Floor, DAC muted C-Message Weighted (0-4 kHz)

-85

dBV

MICROPHONE AMPLIFIER (T

A = 25°C, DVDD = AVDD = 5V,fXTAL = 20.480 MHz)

Parameter

Symbol

Min

Typ

Max

Units

Gain (Zsource = 50

Ω)

Amic

Signal-to-Noise Ratio

A-weighted (0-20 kHz)

SNRm

Input Impedance

Zinm

Ω

Input Offset Voltage

Voffm

2.12

DIGITAL CHARACTERISTICS (T

A = 25°C, DVDD = AVDD = 5V,fXTAL = 20.480 MHz)

Parameter

Symbol

Min

Typ

Max

Units

High-Level Input Voltage

VIH

DVDD-1.0

Low-Level Input Voltage

VIL

1.0

Input Leakage Current

Ileak

µA

Input Capacitance

CIN

5pF

CS6420-CS Datasheet(PDF) 5 Page - Cirrus Logic

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