AMIS-49587_P2 Datasheet, PDF (13/55 Pages) ON Semiconductor – Power Line Carrier Modem

AMIS--49587
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
V_{OFFS_RX_IN}
5
mV
Input offset voltage 0 dB
AGC gain = 0 dB
V_{OFFS_RX_IN}
50
mV
Max. peak input voltage
(corresponding to 62.5% of the SD
full scale)
AGC gain = 0 dB (Note 9)
V_{MAX_RX_IN}
0.85
1.15
V_p
Input referred noise of the analog
receiver path
AGC gain = 42 dB
(Notes 9 and 10)
NF_{RX_IN}
150 nV/√Hz
Input leakage current of receiver
input
I_{LE_RX_IN}
--1
1
mA
Max. current delivered by REF_OUT
I_{Max_REF_OUT}
--300
300
mA
Power supply rejection ratio of the AGC gain = 42 dB (Note 11)
PSRR_{LPF_OUT}
10
dB
receiver input section
AGC gain = 42 dB (Note 12)
35
AGC gain step
AGC_step
5.7
6.3
dB
AGC range
AGC_range
39.9
44.1
dB
Analog ground reference output
voltage
V_{REF_OUT}
1.52
1.78
V
Signal to noise ratio at 62.5% of the (Notes 9 and 13)
SN_{AD_OUT}
54
dB
SD full scale
Clipping level at the output of the
gain stage (RX_OUT)
V_{CLIP_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
--0.5
0.5
dB
95
--1.3
0.5
dB
130
--4.5
--2.0
dB
165
--3.0
dB
330
--18.0
dB
660
--36.0
dB
1000
--50
dB
2000
--55
dB
http://onsemi.com
13