ST75951 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'ST75951' PDF : 21 Pages View PDF
ST75951
ELECTRICAL SPECIFICATION (continued)
Analog Interface
(typical value are given for AVDD = DVDD = 3.3V, Tamb = 25oC. Measurement band = 0 to 0.425 x fS)
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
VREF
Differential reference voltage output
VREF = (VREFP - VREFN)
VDIFF IN Differential Input Voltage
[D3 - D4] ≤ 2 x VREF
VADO OUT A/D Modulator Output DC Offset Voltage See Figure 26
VDIFF OUT Differential Output Voltage [D1 - D2] XMIT = 0dB
XMIT= 2dB
VOFF OUT Differential Output DC Offset Voltage Input code = 0000h
RIN Input Resistance (D3, D4)
ROUT Output Resistance (D1, D2)
RL Load Resistance (D1, D2)
CL Load Capacitance (D1, D2)
Res Converter Resolution
See Note 2
1.18 1.25 1.32 V
2.5
VPP
-50
50 mV
2.5
VPP
3.2
VPP
-50
50 mV
40
kΩ
4
kΩ
10
kΩ
20 pF
16
Bit
DNL Differential Non Linearity
See Note 2
-0.9
0.9 Bit
GTX
Ripple
StopB
SNDR
Channel Gain at f0 + 1kHz
Ripple in Band
Stop Band Attenuation
Signal / Noise + Distortion at - 5dBr
0 to 0.425 * fS, see Notes 2 & 3
f0 ± 0.5 * fS
XMIT = 0dB, see Note 1
XMIT = 2dB
-0.5
0.5 dB
±0.2
dB
-70
dB
80
dB
74
dB
DR Dynamic Range
f = 1kHz, XMIT ATTE = 0dB, see Note 1,
85
dB
Measured over the full 0 to Fs/2 with
-20dBr input and extrapoled to full scale
GRX Receive Gain (Rx gain set to 0 dB)
-1 0 +1 dB
PSRR Power supply rejection ratio
f = 1kHz, VAC = 200mVPP, see Note 1
40
dB
Notes : 1. These parameters are valid for transmit and receive channels.
2. This specification is guaranteed by characterization, not production testing.
3. Transmit channels measured in baseband without modulation.
Figure 26
ST75951
D3 31
D4 30
VCM
18/21
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