參數(shù)資料
型號: ST75C540FP-A
廠商: 意法半導(dǎo)體
英文描述: SUPER INTEGRATED DEVICESWITH DSP, AFE & MEMORIES FORTELEPHONY,MODEM, FAXOVERINTERNET& POTSLINES
中文描述: 超級綜合DEVICESWITH數(shù)字信號處理器,模擬前端
文件頁數(shù): 11/84頁
文件大?。?/td> 599K
代理商: ST75C540FP-A
IV.4- Modem Analog Interface
AV
DD
= DV
DD
= 5V,T
amb
= 25
o
C
Measurementbandwidthis flat from 100Hz to 4800Hz ;Load impedance10k
, 20pF
For differentialoutput (TxA1/TxA2) : 0dBr = 1.77V
RMS
1kHzsinwave (equivalent to 5V
PP
).
For single input (RxA) : 0dBr= 886mV
RMS
1kHzsinwave (equivalent to 2.5V
PP
).
Symbol
Rxrin
Rxmac
Rxdc
Rxsndr
Rxin
Rxov
TxAdrl
TxAcl
TxArout
TxAmac
TxAdc
TxAov
TxAsndr
TxAin
Pin Name
RxA
Parameter
Min.
100
Typ.
Max.
Unit
k
V
PP
V
dB
dBr
mV
k
pF
V
PP
V
mV
dB
dBr
Input Impedance
Maximum AC Input Voltage = 0dBr
DC Reference Voltage
Signal to (Noise + Distortion), at -6dBr
Idle Noise
DC Offset Voltage (Input = V
CM
)
Minimum Differential Load
Maximum Differential Load
Output Impedance
Maximum AC Differential Output = 0dBr
DC Reference Voltage
DC Offset Voltage
Signal to (Noise + Distortion), at -6dBr
Idle Noise
2.5
2.5
75
-81
100
-50
10
TxA1/TxA2
20
100
5
2.5
-200
79
200
-85
IV.5- Audio AnalogInterface
AV
DD
= DV
DD
= 5V,T
amb
= 25
o
C
Measurementbandwidthis flat from 100Hz to 4800Hz ;Load impedance10k
, 20pF
For differentialoutput (SPK1N/SPK1P,SPK2N/SPK2P,SPK3N/SPK3P): 0dBr = 1.77V
RMS
1kHzsinwave
(equivalentto 5V
PP
).
For single input (MIC1, MIC2, MIC3) : 0dBr = 886mV
RMS
1kHz sinwave (equivalent to 2.5V
PP
).
Symbol
RArin
RAmac
RAdc
RAdis
RAin
RAov
TAdrl
TArout
TAmac
TAdc
TAov
TAdis
TAin
Pin Name
MIC1,
MIC2,
MIC3
Parameter
Min.
100
Typ.
Max.
Unit
k
V
PP
V
%
dBr
mV
k
V
PP
V
mV
%
dBr
Input Impedance
Maximum AC Input Voltage = 0dBr
DC Reference Voltage
Distortion at -6dBr
Idle Noise
DC Offset Voltage (Input = V
CM
)
Minimum Differential Load
Output Impedance
Maximum AC Differential Output = 0dBr
DC Reference Voltage
DC Offset Voltage
Distortion at -6dBr
Idle Noise
2.5
2.5
2
-81
50
-50
10
SPK1N/SPK1P,
SPK2N/SPK2P,
SPK3N/SPK3P
100
5
2.5
-200
200
1
-81
IV- ELECTRICALSPECIFICATIONS
(continued)
ST75C530- ST75C540
11/84
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