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ST75C540FP-A Fiches technique(PDF) 11 Page - STMicroelectronics

No de pièce ST75C540FP-A
Description  SUPER INTEGRATED DEVICESWITH DSP, AFE & MEMORIES FORTELEPHONY,MODEM, FAXOVERINTERNET& POTSLINES
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST75C540FP-A Fiches technique(HTML) 11 Page - STMicroelectronics

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IV.4 - Modem Analog Interface
AVDD =DVDD =5V, Tamb =25
oC
Measurement bandwidth is flat from 100Hz to 4800Hz ;Load impedance 10k
Ω, 20pF
For differential output (TxA1/TxA2) : 0dBr = 1.77VRMS 1kHz sinwave (equivalent to 5VPP).
For single input (RxA) : 0dBr = 886mVRMS 1kHz sinwave (equivalent to 2.5VPP).
Symbol
Pin Name
Parameter
Min.
Typ.
Max.
Unit
Rxrin
RxA
Input Impedance
100
k
Rxmac
Maximum AC Input Voltage = 0dBr
2.5
VPP
Rxdc
DC Reference Voltage
2.5
V
Rxsndr
Signal to (Noise + Distortion), at -6dBr
75
dB
Rxin
Idle Noise
-81
dBr
Rxov
DC Offset Voltage (Input = VCM)
-50
100
mV
TxAdrl
TxA1/TxA2
Minimum Differential Load
10
k
TxAcl
Maximum Differential Load
20
pF
TxArout
Output Impedance
100
TxAmac
Maximum AC Differential Output = 0dBr
5
VPP
TxAdc
DC Reference Voltage
2.5
V
TxAov
DC Offset Voltage
-200
200
mV
TxAsndr
Signal to (Noise + Distortion), at -6dBr
79
dB
TxAin
Idle Noise
-85
dBr
IV.5 - Audio Analog Interface
AVDD =DVDD =5V, Tamb =25
oC
Measurement bandwidth is flat from 100Hz to 4800Hz ;Load impedance 10k
Ω, 20pF
For differential output (SPK1N/SPK1P, SPK2N/SPK2P, SPK3N/SPK3P) : 0dBr = 1.77VRMS 1kHz sinwave
(equivalent to 5VPP).
For single input (MIC1, MIC2, MIC3) : 0dBr = 886mVRMS 1kHz sinwave (equivalent to 2.5VPP).
Symbol
Pin Name
Parameter
Min.
Typ.
Max.
Unit
RArin
MIC1,
MIC2,
MIC3
Input Impedance
100
k
RAmac
Maximum AC Input Voltage = 0dBr
2.5
VPP
RAdc
DC Reference Voltage
2.5
V
RAdis
Distortion at -6dBr
2
%
RAin
Idle Noise
-81
dBr
RAov
DC Offset Voltage (Input = VCM)
-50
50
mV
TAdrl
SPK1N/SPK1P,
SPK2N/SPK2P,
SPK3N/SPK3P
Minimum Differential Load
10
k
TArout
Output Impedance
100
TAmac
Maximum AC Differential Output = 0dBr
5
VPP
TAdc
DC Reference Voltage
2.5
V
TAov
DC Offset Voltage
-200
200
mV
TAdis
Distortion at -6dBr
1
%
TAin
Idle Noise
-81
dBr
IV - ELECTRICAL SPECIFICATIONS (continued)
ST75C530 - ST75C540
11/84


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