73M1903-IM/F Maxim Integrated Products, 73M1903-IM/F Datasheet - Page 30

• Manufacturer Part Number: 73M1903-IM/F
• Description: IC MODEM AFE V.22BIS 32-QFN
• Manufacturer: Maxim Integrated Products

Specifications of 73M1903-IM/F

• Number Of Channels: 2
• Voltage - Supply, Analog: 3 V ~ 3.6 V
• Voltage - Supply, Digital: 3 V ~ 3.6 V
• Package / Case: 32-VFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Number Of Bits: -

8.5
73M1903 Data Sheet
8.5.1 Receiver
30
Note: RXG[1:0] and RXGAIN are assumed to have settings of ‘0’ unless they are specified otherwise.
Input Impedance
Receive Gain
Boost
Total Harmonic
Distortion (THD)
RXG Gain
Passband Gain
Input offset
Sigma-Delta ADC
Modulation gain
Maximum Analog
Distortion (THD)
Total Harmonic
Signal Level at
RXAP/RXAN
Parameter
Crosstalk
Performance
Noise
Measured at RXAP/N relative to VREF
RXPULL=HI
Measured at RXAP/N relative to VREF
RXPULL=LO
Rxgain = 1; 1 kHz; RXAP/N=0.116 V
Gain Measured relative to Rxgain=0
RXGAIN=1 for Fs=8 kHz
RXGAIN =1 for Fs=12 kHz
RXGAIN =1 for Fs=14.4 kHz
THD = 2
RXGAIN =1
Gain Measured relative to RXG[1:0]=11
(0 dB) @1 kHz
RXG[1:0]=00
RXG[1:0]=01
RXG[1:0]=10
Short RXAP to RXAN. Measure input
voltage relative to VREF
Normalized to VBG=1.25 V.
Includes the effect of AAF(-0.4 dB) with
Bits 1, 0 of CTRL2 register (01h) = 00.
Peak voltage measured differentially
across RXAP/RXAN.
1 kHz 1.16 V
THD = 2
Transmit V.22bis low band; FFT run on
ADC samples. Noise in 0 to 4 kHz band
0 dBm 1000Hz sine wave at TXAP; FFT
on Rx ADC samples, 1
Reflected back to receiver inputs.
Input 1.16 V
0.5 kHz, and 2 kHz. Normalized to 1 kHz.
Gain at 0.5 kHz
Gain at 1 kHz (Normalized)
Gain at 2.0 kHz
Table 17: Receiver Performance Specifications
nd
nd
and 3
and 3
Test Conditions
pk-diff
pk-diff
rd
rd
at RXA. Measure gain at
at RXA with Rxg=11
harmonic.
harmonic.
st
four harmonics
pk-diff
-0.067
-0.29
17.0
16.2
15.7
11.8
Min
1.0
5.8
8.8
-30
64
80
-0.042
0.000
0.183
Nom
-100
18.5
17.4
17.2
230
-85
70
12
41
85
6
9
0
Max
20.0
18.7
18.7
12.2
0.21
0.43
1.16
6.2
9.2
-80
30
DS_1903_032
µV/bit
Units
V
dBm
Rev. 2.1
MΩ
mV
kΩ
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
pk-diff