CS6422-4 N/A, CS6422-4 Datasheet - Page 6

• Manufacturer Part Number: CS6422-4
• Description: Enhanced Full-Duplex Speakerphone IC
• Manufacturer: N/A

ANALOG TRANSMISSION CHARACTERISTICS
20.480 MHz, RVol=TVol=RGain=TGain= 0 dB, HDD=TSD=RSD=1, analog inputs and outputs loaded with
resistors and capacitors as shown in the typical connection diagram, Figure 4)
MICROPHONE AMPLIFIER
DIGITAL CHARACTERISTICS
6
Idle Channel Noise
(Inputs grounded
through a capacitor)
Signal-to-Noise Ratio
(1.0 V
Total Harmonic Distortion
(1.0 V
Programmable Analog Gain
Volume Control Stepsize (TVol/RVol)
ADC Full-scale Voltage Input
DAC Full-scale Voltage Output
ADC Noise Floor
DAC Noise Floor, DAC muted C-Message weighted (0-4 kHz)
Gain (Z
Signal-to-Noise Ratio
Input Impedance
Input Offset Voltage
High-Level Input Voltage
Low-Level Input Voltage
Input Leakage Current
Input Capacitance
rms,
rms,
source
1 kHz sine wave input)
1 kHz sine wave input)
= 50Ω)
Psophometrically weighted (0-4 kHz)
Parameter
Parameter
Parameter
C-Message weighted (0-4 kHz)
C-Message weighted (0-4 kHz)
C-Message weighted (0-4 kHz)
C-Message weighted (0-4 kHz)
C-Message weighted (0-4 kHz)
C-Message weighted (0-4 kHz)
(T
A
RGain/TGain = 00
RGain/TGain = 01
RGain/TGain = 10
RGain/TGain = 11
= 25°C, DVDD = AVDD = 5 V, f
(T
A
= 25°C, DVDD = AVDD = 5 V,f
Symbol
Symbol
Symbol
SNRm
SNR
THD
V
A
Z
I
V
C
V
leak
offm
inm
mic
IH
IN
IL
(T
A
= 25°C, DVDD = AVDD = 5 V, f
XTAL
DVDD-1.0
Min
0.9
73
Min
Min
XTAL
= 20.480 MHz)
= 20.480 MHz)
0.030
Typ
-80
-78
9.5
1.0
1.0
-83
-83
11
80
12
2.12
Typ
0
6
3
70
34
8
Typ
5
Max
-73
0.1
1.2
Max
Max
1.0
10
CS6422
dBrnC0
dBm0p
Units
V
V
dBV
dBV
dBV
Units
dB
dB
dB
Units
XTAL
%
rms
rms
dB
dB
kΩ
V
µA
pF
V
V
=