参数资料
型号: 73M1866B-KEYCHN
厂商: Maxim Integrated Products
文件页数: 18/88页
文件大小: 0K
描述: BOARD KEYCHAIN INF DANUBE EVM
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
DS_1x66B_001
73M1866B/73M1966B Data Sheet
Rev. 1.6
25
3.9
Receive Path
Table 20 lists the receive path characteristics. All test inputs are driven through an AC coupling network
shown in Figure 29. The receive bit stream is measured at the DX pin. RXEN=1.
Table 20: Receive Path
Parameter
Test Condition
Min
Nom
Max
Units
Differential input
resistance
RXP/RXM
1000
Input level
Differential, RXP/RXM
1.1
1.16
Vpk
Input level
Common mode, RXP/RXM
1.37
V
Overall sigma-delta ADC
modulation gain inclusive
of 73M1906B processing
Normalized to VBG=1.19 V.
RXG=00
Divide Vrxp/m by PCM
Output
47.3
V/bit
Offset voltage
R6=
17.4 kΩ, R8=52.3 kΩ,
R9=
21 kΩ.
0
+/- 30
mV
Rx gain
(See Note 1.)
RXG=00
-0.5
0
0.5
dB
RXG=01
2.5
3
3.5
dB
RXG=10
5.5
6
6.5
dB
RXG=11
8.5
9
9.5
dB
RXBST=1, RXG=00
18.3
19.3
20.3
dB
Overall receive
frequency response
inclusive of 73M1906B
processing
Relative to 1 kHz
0.3 kHz – 3.3 kHz
-0.25
0
+0.25
dB
Fs (8 kHz)
-75
dB
Idle noise
300 Hz – 4 kHz
-80
dBm
THD
RXG=00
-85
dB
RXBST=1
-60
Intermod Dist 1.0 kHz
and 1.2 kHz summed
300 Hz – 4 kHz
-85
dB
Crosstalk
1 Vpk 1 kHz sine wave at
TXP; FFT on Rx ADC
samples, first four harmonics
reflected to the line.
-90
dBm
CMRR
RXP=RXM 1 Vpk
40
dB
PSRR
-30 dBm signal at VPX in
Barrier Powered Mode;
300 Hz – 30 kHz.
40*
dB
On-Hook AC Impedance
300 Hz – 4 kHz, without EMI
caps.
2
Note 1: RXG controls the amount of gain or attenuation of the receiver analog gain element as specified
in Table 20. The overall receiver channel gain has 6 dB of attenuation and the net effect of the
RXG bits on the receiver channel gain is defined in Table 36.
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