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CS4298 Arkusz danych(PDF) 7 Page - Cirrus Logic

Numer części CS4298
Szczegółowy opis  SoundFusion Audio/Modem Codec 97 (AMC 97)
PDF  52 Pages
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Producent  CIRRUS [Cirrus Logic]
Strona internetowa  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS4298 Arkusz danych(HTML) 7 Page - Cirrus Logic

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CS4298
DS315PP2
7
MODEM CHARACTERISTICS (Analog Transmitter Specifications: T
ambient = 0° to 70° C, AVdd = 5.0
V; Sample Frequency, Fs = 48 kHz; Audio specifications for 20Hz - 5 kHz, actual digital filter may cutoff at 20 kHz,
600
Ω differential load where applicable)
Notes: 6. This is the FCC specification for Out-of-Band energy at the telephone jack interface. 9 kHz refers to the
bin size of an FFT performed over the entire range. The amount of noise plus tone power in each 8kHz
bin must be less than -55dBV.
Parameter
Min
Typical
Max
Units
Modem Analog Transmitter Characteristics
Resolution
20
bits
Dynamic Range
(Note 5)
100
dB FS
Passband
20
5000
Hz
Passband Ripple
±0.125
dB1K
Total Harmonic Distortion
85
88
dB FS
Full Scale Peak to Peak Output Voltage (TX+ to TX-)
TBD
5.6
TBD
Volts
AC Output Impedance (TX+, TX-)
(Note 5)
0.1
W
Load Impedance (per pin)
(Note 5)
250
W
Power Supply Rejection (1kHz)
(Note 5)
60
dB
Output Current (per pin)
7.4
mA
Offset (relative)
(Note 5)
6
mV
Out of Band specifications (Tambient = 25° C, AVdd = 5 V;
Sample Frequency, Fs = 48 kHz; measurement bandwidth
20 kHz - 1MHz, RL=600 Ω, CL=33nF)
(Note 5)
-40
dB FS
Total Out of Band energy (20 kHz - 1 MHz)
(Note 5)
-30
dBV
Highest 9kHz band (noise + tone) power (90 kHz - 2 MHz)
(Note 5, 6)
-55
dBV
Modem Analog Receiver Characteristics
Resolution
18
bits
Dynamic Range
Gain = 0
90
dB FS
Passband
20
5000
Hz
Passband Ripple
±0.125
dB1K
Total Harmonic Distortion
Gain = 0
85
dB FS
Total Absolute Gain Accuracy
-5
+5
%
Full Scale Peak to Peak Input Voltage (RX+ to RX-,
differential)
Gain = 0
2.8
Volts
Input Impedance (per pin)
(Note 5)
15
K
Ω
Offset (relative)
(Note 5)
6
mV
Power Supply Rejection
(Note 5)
40
60
dB



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