|
AMIS-49587_15 Datasheet, PDF (13/56 Pages) ON Semiconductor – Power Line Carrier Modem | |||
|
◁ |
AMISâ49587
4.1.4 Receiver External Parameters: Pin RX_IN, RX_OUT, REF_OUT
Table 12. RECEIVER EXTERNAL PARAMETERS: Pin RX_IN, RX_OUT, REF_OUT
Parameter
Test Conditions
Symbol
Min
Typ
Max
Unit
Input offset voltage 42 dB
AGC gain = 42 dB
VOFFS_RX_IN
5
mV
Input offset voltage 0 dB
AGC gain = 0 dB
VOFFS_RX_IN
50
mV
Max. peak input voltage
(corresponding to 62.5% of the SD
full scale)
AGC gain = 0 dB (Note 9)
VMAX_RX_IN
0.85
1.15
Vp
Input referred noise of the analog
receiver path
AGC gain = 42 dB
(Notes 9 and 10)
NFRX_IN
150 nV/âHz
Input leakage current of receiver
input
ILE_RX_IN
â1
1
mA
Max. current delivered by REF_OUT
IMax_REF_OUT
â300
300
mA
Power supply rejection ratio of the AGC gain = 42 dB (Note 11)
PSRRLPF_OUT
10
dB
receiver input section
AGC gain = 42 dB (Note 12)
35
AGC gain step
AGCstep
5.7
6.3
dB
AGC range
AGCrange
39.9
44.1
dB
Analog ground reference output
voltage
VREF_OUT
1.52
1.78
V
Signal to noise ratio at 62.5% of the (Notes 9 and 13)
SNAD_OUT
54
dB
SD full scale
Clipping level at the output of the
gain stage (RX_OUT)
VCLIP_AGC_IN
1.15
1.65
Vp
9. Input at RX_IN, no other external components.
10. Characterization data only. Not tested in production.
11. A sinusoidal signal of 10 kHz and 100 mVpp is injected between VDDA and VSSA. The signal level at the differential LPF_OUT and
REF_OUT output is measured to determine the parameter.
12. A sinusoidal signal of 50 Hz and 100 mVpp is injected between VDDA and VSSA. The signal level at the differential LPF_OUT output is
measured to determine the parameter.
13. These parameters will be tested in production with an input signal of 95 kHz and 1 Vp by reading out the digital samples at the point AD_OUT
with the default settings of T_RX_MOD[7], SDMOD_TYP, DEC_TYP, and COR_F_ENA. The AGC gain is switched to 0 dB.
The receive LPF filter + AGC + low noise amplifier must have a frequency characteristic between the limits listed below. The
absolute output level depends on the operating condition. In production the measurement will be done for relative output levels
where the 0 dB reference value is measured at 50 kHz with a signal amplitude of 100 mV.
Table 13. RECEIVER FREQUENCY CHARACTERISTICS
Attenuation
Frequency (kHz)
Min
Max
Unit
10
â0.5
0.5
dB
95
â1.3
0.5
dB
130
â4.5
â2.0
dB
165
â3.0
dB
330
â18.0
dB
660
â36.0
dB
1000
â50
dB
2000
â55
dB
www.onsemi.com
13
|
▷ |